.
.
question: Good day
My name is Rusty Burleigh
I am presently working on a 1953 45'Catalina D.C.F.B.
I was wondering what your thoughts were reguarding using pressure treated lumber for interior structure and possibly a preservative application to interior hull
Thanks for your time
Have a great day
.
Rusty;
Pressure treated wood has no real advantage in boat work. Besides
being toxic, especially when sawing, it has a low moisture content (helps in
saturation of preservative) which leads to swelling problems in a moist
environments. Plus a good paint or varnish protects the wood as
well.-------gary
.
question: gary i have a 1968 chirscraft with lapstrek plywood hull
she has plywood with mdo[ medium density overlay ]what
is the bast way to remove 6 layrs of paint
can i use a heat gun ? she is 33 ft long and it would take a lot in striper i am afrade that i will lift the mdo
doug lelacheur pei canada thanks
.
Doug;
Because of the MDO finish, the only way I trust removing the paint
is with an orbital sander with a softpad. No sense in removing it all, just
take it down to where the paint is adhering well.You can also use a palm
sander but it takes a lot of effort to remove a little paint. Those are nice
boats---good luck---gary
.
question: I have coated the inside of my wooden boats bilge with penetrating epoxy then a two part epoxy paint. Did I speed up the rot process? the epoxy paint does not let moisture through. I think oil base paint would have been better.
.
You're correct, oil based paint would have been a better choice for the
reasons you gave. I would just keep some salt water in the bilge to
discourage rot and when the epoxy paint peels off either leave it bare or
paint with oil paint. I use a regular porch & floor paint--tuff
stuff. -----have fun--gary
.
question: This season, I decided to repaint the bootstripe on my Parkins Herreshoff H28 due to some small (1/8in) bubbles/blisters I noted in the existing bootstripe paint, which I assumed to be as result of poor prep or paint selection by the previous owner. In the process of sanding the bootstripe in prep for new paint - I found bubbles in numerous locations not visible on the surface. I chased the bubbles through several paint layers - they seem to reside at the paint/gelcoat interface. There does not appear to be any problem with the gelcoat. The bottom has barrier coat and no blisters. The boat spent several months heavily loaded in fresh water. resulting in the bootstripe being right at the waterline with some growth appearing on the bootstripe paint..
What is causing these blisters/bubbles and how should I prevent them. Is it a sign of high moisture content in the fiberglass??? Did the marine growth penetrate the paint??? Any suggestions would be much appreciated. Chris
.
Chris;
I am not very qualified to give advice on problems with paint and
fiberglass boats but I think your analysis is about as good as it gets. The
marine growth may well have microscopically impregnated the gel coat to
cause slight water penetration. I would tend to strip off the paint and let
the hull dry out , sand the waterline and apply a coat of penetrating epoxy,
then prime first with a fiberglass etching paint then a regular primer, and
finally the finish coats .
Also I would go to the Interlux paint site http://www.yachtpaint.com/usa/
,and ask them for their advice---------good luck--gary
.
question: Mr Wheeler,
I have 1969 32' Grand Banks (mahogany planks/oak frames) up on a very cold clear fresh water lake in North Idaho. We are getting set to haul out and apply bottom paint. What would be your recomendation for bottom paint and also how best do I protect the bilge area from the fresh water.
Thank You
Steve
.
Steve;
You need to know what bottom paint is on there so you can use a compatable one---Hard or soft, vinyl or otherwise. As far as the bilges are concerned put in a salt block or just spread salt around the bilges. Salt kill the rot fungus----g
.
I forgot to tell you the paint. It is Interlux BottomKote - soft. The fellows at
the boat yard are saying if we can strip all of the soft paint off and or find a
hard paint that is compatable, the hard paint would offer better life and
protection in fresh water.
sl
.
A lot depends on how you are going to use the boat. Is it going to stay in the water for long periods of time, with little use or a lot of use or just for one season or so. There are no wood eating worms in fresh water that I know of and the worst bottom growth is only algae & slime mainly at the waterline so the whole thing maybe no big deal. Hard is preferable but the hassle to remove the soft may not be worth the difference. If it were me I would slap on some soft and go boating------g
.
question: Hi Gary,
You have an excellent Webpage and are providing outstanding information, a very worthwhile service of an almost forgotten trade. Your assistance is greatly appreciated by the many you have helped.
Now enough of the mushy stuff!
I have a 38' Pembrooke Cruiser the hull is of Lapstrake construction and it appears to be very solid with only a few planks in the transom requiring replacement, also, the bottom has been fiberglassed by the previous owner. The boat is in Florida and my question is what paint I should use for the hull? I would like to take advantage of some of the new technology developed for marine paints, but there are so... many new products on the market and they all say they are the best. Maybe I should have prefaced this by telling you I am in my mid sixties and have some mobility problems so painting the hull is something I only want to do once in my lifetime. So I would like to do it right with the best products available. Do you recommend any of these for Lapstrake boats; AWLgrip, CFlex, Interlux, etc. Please advise, what is the best product to paint my boat
Thanks,
Bill
.
Bill;
Thanks for the accolades, it helps. Nice boat, deserving of a good paint job. As you know 80% of a good paint job is the preparation. Plenty of sanding, filler and the appropriate primer. As far as the finish goes, if you don't go down to bare wood, you have to make sure what you put on is compatible with what was used before. The more high tech the paint the more difficult the application and the more critical the proper temperature and humidity. I have always used Interlux Brightside enamel with good results and it is easy to touch up over time. I am not much of an expert when it comes to painting and would suggest you get more opinions by asking your question on the forum at www.woodenboat.com. Have fun and send a photo when you're done-------gary
.
.Hi Gary
Your life story of boats warms me inside; anyway I have got
a large problem; about 14ft of problem.
I bought a small sea fishing boat shell for £150, which I thought
was a
bargain. Months later with no help
from all the enthusiastic people at the time, I'm getting there slowly;
especially with comments like; that wreck will never sail, followed by
rounds of laughter, It's my first boat and I do not have much money. I
am
turning it into a Canal Cruiser. Another problem I have is the advice I
get
from amateur house DIY men, never one piece of advice the same, What I
need
to know is what preparation and what paint to use for the top and
bottom.
The hull is fiberglass, and the top (home made by someone) is made of
ply,
(not marine ply) and full of damp.
Please can you help
Gill
.
Gil:
Yes, with boats everyone is an expert. Hull preparation and what paint
to use depends a bit on what is on there now. Assuming you can sand or
scrape off the existing paint and get down to the bare fiberglass, I
would fill any indents with epoxy putty or fairing compound and sand
the bare glass lightly. There are many choices of paint types, from
basic alkyd all the way to complex two part epoxies. The alkyd or oil
base paint is fine for the plywood decks, after they dry out. Unless
you are working in a very controlled environment i.e. temp. and
humidity controlled which is necessary for the 2 part epoxies, I would
recommend you do the hull and bottom with a single part polyurethane
(Interlux Brightside is one]. Of course prime first with their
suggested primer. Enjoy your new "old" boat. Hope this helps-------gary.
.
Hey there Gary, I have an old houseboat i am
renovating, i have had it in the water for a few years. I have it
drydocked at the moment and am going to paint the bottom. It is wood
and i fiberglassed over it. What kind of paint should i use for it.
Anti-fowling, or just a good marine paint, or do you think there is
something better that i could use? I am going to leave it in the water
again for a few years after i put it in.
Thanks for your help.
Cheers
Mike
.
MIKE;
It depends whether the boat is in fresh or salt water. If fresh, than
any good oil based paint is OK, but if in salt water you must use a
good toxic bottom paint to keep the little critters from making it a
home.-----------------gary
.
I am restoring an old Seabird yawl. The bilges
were originally painted
with red lead. What paint can I use over this without stripping?
Thanks, Mike Schifsky, Orcas Island, Wa
.
Mike:
If the red lead is not flaking use any good oil paint, I use porch and
floor paint, not many colors but holds up really well. You have a nice
boat. I'd like to find one out here. If you have further questions feel
free to ask ----------------gary
.
question: I just bought a 1965 Owens Flagship
to restore. It has a plywood hull which is in rough shape.The original
owner replaced the aft but did not seal any edges.What type of filler
and sealers should be used.Also, before I put any sealer on, should the
hull be sanded to the bear wood or just roughed up?
Are there any sealers already mixed with paint? If not what kind of
paint should I use?
Does the sealer need to be applied below the water line?
Do plywood boats need to swell before putting them into a body of water?
Thank you for answering my questions
.
Hi;
I know those boats well. First, plywood does not swell. Second any
exposed edges of plywood must be well sealed preferably with epoxy. The
edges are the only area where water can enter and separate the glued
plywood layers. The surface of the plywood, if already painted, does
not need sealer. Usually sealer is used on new bare wood just to seal
the grain, but paint will do the same thing. Always use an oil or alkyd
base paint on the topsides, it doesn't have to be Marine, on the bottom
use a decent antifouling bottom paint. If the old paint is in decent
shape just rough it up a bit before you paint over it. Good luck with
your "new" old boat. Feel free to ask questions as needed------gary
.
question: I have a 1964, 31' Richardson and am
having problems finding a finish for my deck and cabin top. The
original covering is canvas and a rubbery coat. Because of peeling I
removed the finish coat of paint last summer and repainted using a
"West Marine" polyurathane topcoat.
Looked fine until colder weather (28 to 50 degree) hit this winter. I
notice cracking and splitting of my topcoat. The boat is moored in the
weather at a marina on Orcas Island, Wa. How were these boats
originally finished? What paint to use today? Suggestions? HELP!
Thanks, Gus
.
Gus;
I think the problem is you used a modern product over a traditional
one. I would go back to good old oil based paints. Some of the new high
tech. products are pretty good but they are real sensitive to
application conditions and have compatibility problems. Hope this
helps--------------gary.
...
question: Gary,
My name is Rufus. I have a 1975 42ft Hatteras convertible with the dark
teak interior. I would like to lighten the interior. What are your
sugestions?.
..
Rufus:
Nice boat, but all that teak can make it pretty dark down below. As
much as I like teak, visually a little goes a long way. I prefer white
or light color surfaces such as ceilings and bulkheads highlighted with
teak edging and trim. The easiest way to accomplish this is simply to
paint these surfaces. A little white paint goes a long way to brighten
things up. Bleaching the teak would be a momentous task with little
improvement. Wipe the teak down with acetone before painting. Have
fun---gary.
.
..I have a small
wood boat I built and I am in the final fairing and sanding of my west
epoxy coating I put on it. The boat will be used for duck hunting and
will travel in shallow places therefore the bottom is a concern to me.
I would like to get a scratch resistant paint at a reasonable cost for
the bottom. I will be using a trailer and the boat will not be left in
the water so the anti-fouling paints are really not an option as they
require the boat to be in the water. I am just looking for a real tough
paint and primer to use on this boat.
Thanks. Matt
.
Matt;
Well, since you don't have to worry about antifouling paint, you should
just go with a hard paint that is used on the topsides of Boats.
Interlux makes a Brightside enamel monopoxy which is good but your best
bet may be to call the West System people and see what they reccommend.
Congratulations on building your own boat, no easy task whatever the
size-------------------------gary
.
Thanks Gary. I have contacted West, but I
think I will do what you suggest. I was looking for other options. I am
really considering putting down a layer of woven roven on the bottom
and up the sides about 3 inches and then covering that with a good
latex primer. I can still do that while the epoxy is not cured. Upon
curing, the amine blush becomes a problem. I have some glass cloth on
the bottom already with 4 layers of epoxy on top of that, but I am
concerned nonetheless.
Thanks for replying.
Matt
.
Matt:
Unless you figure the bottom of the boat is going to take a beating and
needs more protection, I wouldn't add any more glass to it, plus you
would be adding a lot of weight. Don't use a water based latex over
epoxy or polyester resin. You either have to use an epoxy paint or use
a fiberglass primer before you use an alkyd or oil based paint. Also
remember, you can always over think a problem and you can always undo
or redo what doesn't work----------have fun----g
.
Gary
I am planning on using a good quality of latex on the entire boat.
Again it is a 15 ft, used for duck hunting only. It will not be left in
the water and it will be cleaned each time. Furthermore, the entire
boat will be coated with epoxy so the epoxy will be the water barrier.
I think latex will do just fine. I am not too concerned about the looks
and I think the more I use it, the more weathered and better looking it
will be. I am building a very wide rub rail on the top of the gunnel to
accomodate stainless steel bases onto which I will attach a blind that
will fold up and fold down. That will allow me to hunt out of the boat.
After I sent the note, I got to thinking about the weight too. I heard
your email come in and was just about to say to heck with the woven. I
will fair the holes (small holes after sanding) flow coat with a thin
coat of epoxy and put on a good latex primer. I want to complete the
hull with primer before I flip it and begin work on the inside.
I have been searching for a way to determine the water line. If you
have any suggestions, I am open to them. Also, if you have any
suggestions on my painting solution (latex) I am open to those too.
West says latex is just fine when applied either this way or after
sanding and washing the amine blush off.
I plan on putting a mud motor on here too. I am including 2 shots of
the boat before I began all the epoxy surface work and had on the
bottom (June 2002). I actually scrapped the first one I did because I
did not spread it correctly and I had large gaps between the gunnels
and the floor. So this is my 2nd attempt. Then hunting season got in
the way.. It does not look much different now except the bottom is on
and it is all sanded. I am glad that the sanding is over for now.
whewwwwwwwwwww. Upon fairing, I will have spot sanding to do.
If you have any ideas on using something other than plywood for seats,
I would like to hear those too. I am thinking about the blue insulation
they put into the sides of houses when they are framing them, R13 I
think is the factor on it. I was going to use that for a core and
fiberglass and epoxy it into seats.
Thanks,
Matt
.
Matt:
Latex paint is water based and will not stick well to West system or
any other resin, they are incompatable. I would just eyeball the
waterline until after the boat is in the water, then you can mark the
true waterline. Reinforced blue board seats would work fine. All sounds
good-----g
.
Gary
I have heard differently, and it took a while to convince me. Right now
I have a board at home I have covered with latex primer and latex paint
as a test. It is looking OK, but I was gonna sand it down and see what
happened. I think the oil based paints are probably best too. Will an
oil based primer work as well or should I just bite the bullet and go
with an epoxy primer? The epoxy primer might also serve as a flow coat
too right? Brand suggestions would be appreciated. The Interlux enamel
is a suggestion you had, but that was for a paint.
Thanks,
Matt
.
Matt:
You'd have to put your test board under water and out in the weather to
see what will happen---Epoxy paint, although a little more demanding to
use, would be my choice and yes it would act as a flow coat----------g
.
OK, I will go with the epoxy paint. Again, I
was holding off because although I was "convinced" I was never totally
convinced so that is why I did the test.
I think the epoxy primer is a better choice.
Thanks, take it easy.
Matt.question:
I have a 41' Island Trader sailboat with wooden mast. These were just
taken down for inspection and repaint. What do I repaint with. when I
sand off the old do I seal first then paint?
.
Hi;
Nice boat. First of all, if the existing
paint isn't that bad just lightly sand it and repaint with a high gloss
enamel. If you do take off the paint down to bare wood it is advisable
to use a wood sealer then a primer then 2 final coats of gloss sanding
in between coats. Good luck-------------g
.
Hi, I found your site on "ask jeeves" it is a very interesting & informative site.
I have recently purchased a 32' marine ply fly bridge motor cruiser. It is a sea boat that for the last two years has been used on a river by it`s last owner. I am at present having her shipped by road down to me, where I will spend the next few months repainting etc ready to put her back on my mooring on the estuary for sea use next season.
The previous owner gave her a "one day" repaint of the hull, and cabin as a quick make over, for cosmetic appearance with gloss paint.
There are a few bubbles along the hull in the paint which I think are caused by lack of preparation before painting. If you press the bubbles they burst and oil from the paint comes out. ( the ply behind is hard).
What I would like to know is what type of paint should I use on the hull and cabin above the water line.
And should I use a specific type of anti foul paint below the water or are the all pretty much the same.
Thanks Rob
.
ROB;
The topside paint you would use depends on what is presently on there. Sounds like an oil or alkyd based paint, so you should use the same but I suggest you go to the Interlux website (http://www.yachtpaint.com/) and investigate their products. Also check out their bottom paints. There are basically 2 types, one is soft and ablative, i.e.. it slowly sluffs off and is preferred by those who use their boats often, like commercial fishermen, and a hard usually vinyl based paint preferred by pleasure boaters. Usually the more you pay the more protection you get. Also, since the boat is returning to a salt water environment, you must use some sacrificial zincs to protect the underwater metal parts such as the shaft(s) and rudder(s). Have fun with your new old boat----gary
.
Hi,
I wonder if I could ask for some advice, I have stripped my boat of all paint and have filled cracks with epoxy. I have painted boat with preserver x 3 coats, yacht primer x 4 coats, 1x coat pre-coat and two coats of top coat. but my boat continues to crack while I am working is there any thing I can do or am I doing something wrong?
Thank you
Mike
.
Mike;
Seems like the wood is continuing to dry out and the checks in the grain that were swollen closed are now opening up. You have to work faster and get it back in the water or turn up the humidity, moisture content, of your work space. Getting a glass like finish on a wood boat is damn near impossible unless you have complete control over temperature and humidity. I usually settle for a 25ft paint job ie. stand back 25 feet from the boat and if it looks good, job is done---gary
.
Hi Gary,
I fogot to get your advise on the cracks they are about 2mm wide, should I fill them in? if yes what type of filler can I use should it be a flexible sealer. Or should I put the boat back into the water and try to get them to swell closed?
Regards---Mike
.
Mike;
If the cracks are below the waterline just use some roof patch tar which will be squeezed out as the wood swells. Tar will work as well on the topside cracks but is a bit sloppy so a polysulfide like sikalex will work better and also remains pliable.The roof patch is a lot cheaper-------g
.
question: Gary, I have cleaned the bilge on my 1965 Chris-Craft 18' Super Sport ski boat and was intending on painting the bilge with over the counter oil based red paint........can I still swell the boat before going to the lake by filling with water as we have always done or will the oil based paint seal the wood pores?????? thanks, mike
.
Mike;
I've painted many bilges on planked boats and never had a swelling
problem. I suggest using a alkyd or oil based porch & floor paint, very
tough and resilient--------g
.
thanks for the timely reply............my wife and I were arguing over this situation and looks like I FINALLY won one...............
.
question: Hi Gary,
I have a triple skin (diagonally planked) Mullet boat (in New Zealand). Lately blisters have appeared under the paint on the topsides and I have wooded and repainted the planking in parts but the problem persists. I am inclined to remove and reseat the (teak) rubbing strips and wonder if there is any advice you can give on 1) fastening method - bedding screws in epoxy? - silicone or epoxy bead under strip? 2) maintaining the water-tightness of their join to the hull - I have left the teak bare in the past 3) any way to check the integrity of the middle planks without tearing the whole structure apart?
Many thanks,
Chris.
.
Chris;
As you probably are aware, blisters in topside paint can be caused by
different factors, including incompatible coats of paint,like alkyd base
over water base primer, bad wood prep and moisture. I assume you feel that
moisture is getting in between the planks and working its way to the surface
and that the moisture is coming from an improper seal between the hull and
the rubbing strips. Worth a try to see if that is it. I wouldn't use an
epoxy for bedding but rather a polysulfide caulking ( 3M or Sikaflex) under
the rail and coating the screws.
The integrity of the laminated planks is best done by sounding the areas of
concern. Tapping with a wood mallet or plastic handle of a screwdriver will
locate any areas of separation, good areas will have a sharp sound bad areas
will sound dead or vibrate. Good luck with your project, ask more if
needed-------------gary
.
PLANKS & STUFF 71
.
question: Anyways had a question for you,.
The past few years sixpence has been leaking down where the mastsep is
in the planking which is where the garboard meets with the stem. It is
only when I am on a port tack and the pump seems to keep up with it. She
stops when at rest . I think the that the downward stress on the mast
opens things up . Any fixes. So far I have replaced a few planks and
done some refastening but the caulking has not been changed. Anyways
nice to see you the other day,. Love the book,. mike
.
. Regards your question; you are correct about the mast load being
dispersed around the mast step garboard area. There are only 3 factors
that come into play, one, is the rig a bit too tight, easy to check that
one under sail, two, is the caulking shot and three, are the fastenings ok.
Personally I would first pull the cotton for a couple feet on the
top and bottom of that plank, once removed,tap the plank and see if it
is tight or vibrates indicating a fastening problem. Refasten, if needed,
and recaulk with new cotton. Since it is only a problem on the one side,
it would most likely be a fastening and or a caulking issue.----
Hope this helps------gary
.
question: Gary: My friend is replacing the garboards on a 26' 1965 Pacemaker with mahogony 1" planking (carvel). I have advised a snug fitted garboard, he wants to leave a 1/8 space on each side of the plank for expansion. I advocated expansion won't be a problem and the planks should be snug fit. Whose correct? lumber is dry, boating area N.E. summers ,slow speed boat.
Thanks
Ricard L
.
Richard;
On a carvel plank that is to be caulked with cotton the inside edge
should be tight while the outside edge slightly gapped forming a v to
receive the cotton. The only exception being if the boat had been high and
dry for a very long time and the planks have shrunk from drying out, then a
loose fit is in order. Also Mahogany swells very little. So, all in all,
you're right.---------g
.
question: Hello Gary,
I have a wooden cutter (30'). Mahogany planking on sawn oak frames. Planks are fastened with galvanised iron boat nails, also called dump nails here in UK. The planks are splined and of course she is carvel. She has been out of the water for too long (10 years). She was built in 1968 at a fishing boatbuilding yard. There is now some slight opening up between the planks. Some of the nails are starting to push out the little mahogany plugs that cover the heads. And in one place amidships just below the waterline where a plank is butt jointed against a double frame the plank end (amidships) is lifting away from the frame by about 1/4 inch. (i.e. where they have used two short planks that are half the length of the boat the end of one is lifting at the midships joint)
Some people say knock in more nails near the ones that look most sick.
Others say put the boat in the water first and see how she takes up and only then put in new dump nails. Or should I fill any spilts and openings with a soft putty of linseed oil, paint and window putty before launching as some suggest?
What do you advise? And by the way should one predrill the planks to take the nails? Should one also drill a pilot hole into the frame?
The other point is that the deadwoods between keel and rudder (oak) have quite big splits in along the grain. Some say dont worry - it will take up when she is back in the water. But should I leave the splits bare, or coat them with something?
Thanks, look forward to your advice
Paul
.
Paul;
Best advice you got was to put her in the water and let her swell up
for a couple weeks to see what you got. Those proud butts will have to be
renailed at some point, pre drill both the plank and rib with undersize bit,
Open grain on keel will swell closed but any area on the bottom, including
them, that will leak badly should be filled with a roof patch tar which will
squish out as the joint swells. Have fun, she sounds like an interesting
boat. Send a pic if you have one.----gary
.
Wow that was quick, as well as rather encouraging!
There are thin longitudinal cracks along the plank joints (ie where the
splines are) in some parts of the top sides. Should those also be just left
alone til after some exposure to the seawater and weather? It rains a lot
in S Ireland! Currently everything is quite dry and I sort of worry that
getting everything all wet and salty will hasten the chances of more
fastenings starting to rust! Maybe this is mistaken feelings? Perhaps a
boat like this has salt just about everywhere already, but for many years
when in regular use she never opened up at all and so I felt the fastenings
were well buried and fairly safe from salt and wet, putting her into the
water like this will surely get salt water into all the places that are
open.. or do I worry uneccesarily?!!.
For sure the bottom has many more open plank joints where the splines run
(long thin cracks that you could get a knife blade into) and of course
those are going to soak up lots of seawater. Maybe that is just how it has
to be to swell up. But what I understand, that apart from the deadwoods
where you say to put roof repair tar, you recommend put nothing on or in the
cracks, just put her in and let her swell up and then decide the next step
based on the results?
Perhaps you can elaborate on the possible results and next steps?
kind regards and thanks,
Paul
.
Paul;
. I would leave the topsides alone until she swells.
I would fill the open seams on the bottom with roof patch
tar just to prevent her from taking on too much water. This will not inhibit
swelling of those seams. There is very little you can do to prevent further
rusting of the fastenings. You can prevent surface bleeding of a fastening
by pulling the wood plug, clean the head of the fastenings with a piece of
rigging wire in a electric drill and coat with epoxy before you replug,.
Salt water is the best friend of the wood in a wood boat. Once in the water
I would wash down the decks and topsides with salt water regularly. When
refastening chosen areas I would consider using stainless screws which are
easier to use than nails and would produce no electrolysis with her existing
fastenings. One of the reasons for not "fixing" a wood boat that has
severely dried out is that you do not want to make permanent any changes in
hull shape or alignment of parts that has resulted from drying out on the
hard. So by refloating we allow her to become her old self before we repair
her.---gary
.
Dear Gary,
Hope all well with you.
I am at the boat now and have pulled in that plank butt.
It looks like she had a knock from a post or pointed rock at that frame two planks below this butt as that plank has some damage on its upper edge and its lower edge was looking slightly sprung. Well I did as you suggested and the butt pulled in ok with a couple of GI 2.5inch screws and I also pulled in the edge of the lower plank with a screw.
A contributing reason for the sprung butt is that the builders had fastened it onto a double frame but got their alignment a bit wrong and the two nails were both in the slight gap between the doubled frames! So not much grip!
So now I am on with the other jobs before launching and letting her take up.
Someone suggested (due to the expense of hauling out again and again relaunching) that one could still go with your trowlable roof tar in all the seams and open deadwoods etc as you suggest, but then prime her and antifoul and then launch and let her take up and if she takes up ok then no need to lift out for priming... would take a bit longer perhaps to take up but would save quite a bit of money on the yard. does this sound mad or reasonable to you??!
On other below water line planking some of the planks do have softening around the nails. Does one just live with this for the time being, the planking actually looks very good otherwise? (I am stripping her back pretty much to bare wood as so much of the bottom has the crackly black antifouling - it took me a long day with a scraper to do half the hull which is actually faster than i expected but i will have to go over it another day with the circular grinder with soft pad and 60grit as you suggest. )
Cheers---Paul
.
Paul;
Well done, thanks for the photos, looks good. Soft wood around fastening caused by iron rot (from rust). I would splash each one with some penetrating epoxy (gitrot) which will harden it up a bit, but more of a psychological fix than otherwise.. No problem leaving her in if all is well, normal ablating bottom paint will stick fine to the roof patch tar, but not sure if vinyl will.You can mix a little bottom paint with the tar to make applying the tar a little easier. You are a good steward, she will treat you well as long as you respect her age ie.no hurricane sailing.--------gary
.
Hi Gary
I'm getting close to sealing my seams on Nordic Star (double planked mahogany). Some of the seams have large gaps especially where the keel meets the hull. In order not to use an entire can of sealer on one seam I drove in okum on the large seams and cotton on the smaller seams with still plenty of room for a good bead of sealer. I also used okum on the big seam you can see on the keel. Is that the appropriate method? Now for my next issue below is a picture of my stem just below the waterline my idea is to remove the old galvanized carriage bolt and insert a new one and try to suck it up, I'm a little afraid I might split the wood. Do you have any good ideas on how to fix that stem issue. Thanks in advance for all your help.
Kirk
.
KIRK
What you have done is fine but much of the open spacing is from the wood shrinking from drying out and much of it will close up once back in the water and all you do now will just keep the boat from taking on too much water as she swells. This is true of your stem as well. I would not try to close the seam with your new bolt but just snug it up with some cotton and seam compound in the joint and on the next haul-out tighten it a bit.For future reference the wood, called deadwood, below the planks are solid pieces and one can just put tar in those seams without cotton or oakum and the tar will just squeeze out when the wood swells. Nice job Kirk.---gary
.
question: Hi Gary, Enjoy reading your web site and would like to ask you some questions regarding a restoration I am doing a 1958 Islander 24. It is hull #4 of 9 built and is constructed of cold molded triple diagonal planked mahogany. The hull is just over an inch thick. I'm doing what I would consider to be a stage one resoration (servicable with all components replaced or rebuilt but not necessarily show quaility. My questions is that over the years, the planks having gone through many cycles of expansion and contraction and have seemed to have lost some of thier elasticity. I've had the boat in the yard for six weeks to fair the hull. It appears everytime I think I am done with the getting the hull back in tip top shape, it continues "to work" and when I come back the next day expecting to start the painting process, I notice new cracks between the planks or bulges in what was just one day ago an area that was perfectly faired. What would your recommendations be for fill ing these small cracks between the planks and should I be concerned that the instability I am seeing may be caused by the interior planks having apx as much as an 1/8th" gap between them that could possibly be letting in more moisture the the hull and hence the demensional instabilitiy that I'm seeing.
Thanks---Bob J.
.
Bob;
I am afraid you have entered the twilight zone of cold molded hulls.
Although the initial construction method seems sensible, the combination of
characteristically unlike materials, wood and epoxy, has led to many
mysteries in aging hulls.So basically I don't know what the hell is going on
and neither does anyone else. I think your analysis is as good as you'll get
and the easiest solution would be to lower your standards a little more,
50ft away looks good paint job rather than 10ft. Many of these type hulls
were glassed over to further prevent movement but unless one literally laid
up a glass hull over the existing structure I don't think its worth it on an
older boat. In the early 60's the Japanese were making some hulls that used
similarly diagonally layered planks but mechanically fastened them together
with copper rivets and no glue just bedding compound plus canvas.
Interestingly, over time, these hulls displayed none of the problems of the
glued hulls. Good luck with your efforts----ps.-- any epoxy fairing
compound will be fine for filling cracks ---g
.
Hi Gary, thanks for the info. Ironically, my boat was glassed when it was built. On the hull, it is glassed from the keel to 2" above the waterline. The top of the house and the decks are also glassed. This was done at the time of manufacturer and not as a poorly executed after thought by some well intentioned but ill advised boater. Since the boat is already partially glassed, I've been asked by freinds why not just go ahead and glass the hull after I'm done fairing it out. I suppose my hesitance is that this particular boat has quite a history and as such, I'm trying to keep it as original as possible. Right down to keeping the kermath sea twin in prime operating condition. I've contacted the people at "the rot doctor" and essentially was advised to treat the hull with CPES prior to painting. I believe that since the planks on the interior of the hull have up to an 1/8" gap, there is probably a bit more atmospheric water vapor entering the hull from the interior than would normally be the case. What would you recommed for treating and filling these gaps on the hull interior?
thanks again,--bob
.
Bob,
Normally I am against using CPES over good wood but with your problem it
may help.On the inside seams, a poly caulk like sikaflex would work. You
want something with flex but not an adhesive like 3M 520-----g
.
Hi Gary, Ok,sikaflex on interior planks and I'm assuming it's paint friendly. I'm using Interlux Toplac, single part polyurethane for the exterior hull and irrrespective of the shock of some, I'm painting the it black. The boat is in southern ca. with an average temp of 62 degrees (temperate climate) because of the high reflectivity of the finish, I've checked the hull temperature during the hottest periods of the day and it is cooler than the pale somewhat oxidized petit carribbean blue that was formerly on it. She also is kept under a well ventilated full cover when not in use. Was planning on using on oil based paint on the interior however, to let the wood breath. I've heard that wayne ettel is a proponet of putting expoxy on interior surfaces to keep the wood dry. I suppose I'm on the fence on that one since I already have the polyurethane on the exterior of the hull. It would be nice finished bright, but with the seams being caulked, I don't think it would be all that attractive. Do you see any problems with my approach.
thanks again for your valuable input.---Bob
.
Basic approach OK, but a black hull in that climate, no mater the paints
reflectability, will heat up and dry out the wood , plus black shows up all
imperfections. Go white---cool and hides imperfections. But your boat, your
choice, then I can say "told you so"-----g
.
Hi Gary
I'm still working on Nordic Star the 36ft trawler I'm getting ready
to replace some planks, my question is, should I make the tolerances
between the planks as tight as I can. Some existing planks seem to
have a very close fit and some have a slight space between them wide
enough to take caulking. Do I need to leave room between the new
planks for expansion or fit them tight?
Thanks in advance for your help, more pictures to come.
Kirk
.
KIRK;
Glad you are still at it. If the plank seams are caulked with cotton and
seam compound you need to have a beveled seam< with the inside edges closer
together that the outer ones.This allows the cotton to be pounded in without
driving it through. If the planks are not caulked then close fits are
important. Topside planks will swell less than bottom planks so leave a
little more gap on the bottom seams----------g
.
question: Hi Gary, I am not new to boats but I am to wooden boats. I am thinking of purchasing a 30 plus foot owens which appears to be in great shape and have been told by some that it is. It is double planked. the boat has been out of the water for about 8 months. I noticed that the planks towards the bow under the water line are cupping.. Am I looking at a serious problem? Anything you could offer would be much appreciated..Thanks Barry
.
Barry;
Probably nothing serious but I would pull a couple fastenings in
that area and make sure they still have holding power. Also check for any
soft wood at plank ends stem and stern and at the upper corners of the
transom. These are common rot areas caused by fresh water intrusion. Have
fun with your new old boat------gary
.
Hi Gary, I forgot to ask you in my previous question what are some of the
causes of planks cupping? Thank you once again. BarryHi Gary, I forgot to ask you in my previous question what are some of the causes of planks cupping? Thank you once again. Barry
.
BARRY;
A plank can cup either concavely or convexly depending on the
type wood and the cause. Convex cupping usually occurs from the plank being
too tight from overcaulking and having no room to swell, concave usually
results from fastening failure.-------g
.
.
question: Hello Gary
I came across this web site while researching a 45ft Chris Craft Catalina (1953 vintage) that found it's way into my driveway .
My son decided I would have all the time in the world to restore it , while he's going to school in Australia.
It's a massive double plank mahogany,twin engine dinosaur. The hull has been out of the water for eight-plus years .She's well dried and dry rotted. The superstructure has considerable dry rot . Cabin sides,particularly around the windows are being rebuilt.The hull however, is basically very sound .We have completely gutted the interior in preparation for replumbing as well as rewiring .I'm not the least bit phased by the interior work , by concerns lie below the waterline . The two longest planks , right at the chine have to be replaced and the chine logs are surface rotted.I suspect they need replacing - unless I can but meterial above and below the existing logs ans fasten the new planks accordingly. I'd like your advice on that please .
there's one more curious item I want to mention . In the bottom , are two large metal pLates, perhaps 30 inches by 72 inches running parallel to the keel.These are nailed into the bottom and not caulked or sealed in any way . I can't tell if these are perhaps bonding material or just a jury-rigged patch to cover some leaky planking . I'm reluctant to rip them off without understanding why they are there. I can't find any connecting wire inside the hull, so I tend to discount the bonding theory .
Any advice would be greatly appreciated .
Harry
Lefroy,Ontario
Canada
.
Harry;
Amazing how those old wooden boats just appear in the driveways of
those who will treat them kindly. Quite a job you have taken on, I salute
you. Sounds like you pretty much know what you have to do. The question of
the chine log replacement really depends on if the rot has weakened the
structure or is just cosmetic. Be that it is a high stress area I would be
reluctant to do just a patch job instead of replacement if needed
Unfortunately with the metal plates, the only way to figure out why they are
there is to take them off. My guess would be your guess, patches for leaky
areas. Let me know what you find and send some photos as you
progress-------gary
.
question: what cause wood planks to pop off in rough water
.
Bad fastenings
.
question: Gary, I have enjoyed reading though your Q&A section and hope you can give me some advice. I have a 31' Monterey Clipper, built as a yacht by Cheoy Lee of 1.25" x 1.5" mahogany strips. The strips are coved and edge-nailed, and I think glued. She has been ashore for 3 years and is very dry. The seams have opened. The prior owner, who never had her in the water, started a messy job of paying the seams with some type of adhesive caulk, which I assume has to come out, and the seams filled with seam compound. The largest opening is the width of a dime, many are just cracks in the paint. I doubt I'll be able to get paint in the seams to prime them. I guess the other option is the reglue the seams, but I am wary of epoxy on these strips, which will want to swell. I'd appreciate any advice. Sam
.
Sam;
I like those boats. Usually the strips are always glued as well as nailed
and often fiberglassed over so the wood doesn't expand and contract. The
concept being you end up with a very solid lightweight structure that has
very little flex and requires a minimum of interior support. The ideal
solution for your problem would be to saw a curf in the open seams and fill
with a epoxy and fiberglass over the whole hull. Short of that, and much
less work, you can clean out the open seams and fill with the 3m polysulfide
5200 which behaves like a glue but remains flexible so the wood can still
swell. Good luck-------g
.
Hi Gary
HAPPY NEW YEAR!!
Finally finished the bulwarks, now I'm chasing rot on the foredeck. I
removed the fiberglass that was on the deck and discovered a
traditional teak deck. I removed the teak and now I'm down to 3/4 in.
plywood. Some of it is badly rotted so I'm replacing it where necessary. My plan is to put 3/8 in. plywood over the 3/4 to take the place of the teak deck and then use a product from the rot doctor to
water proof that. Can 3/4 in cdx plywood be used to make the repairs
to the rotted deck instead of marine plywood? Someone told me that
exterior construction grade plywood uses the same glues as marine
ply, is that right? Here are some progress pics. I will email some
pics of the deck area next time.
Thanks for your help, Kirk
.
Kirk;
Looking good Kirk. Nice to be putting together rather than taking
apart. It is true that all plywood uses water proof glue but all but marine
and cabinet grade use fillers in some of the layers instead of solid wood
and do have come voids which allow moisture to develop and do not have as
many layers. On parts of the boat that are easily accessible and not
structural, like the bulwarks, using it is OK, but in areas that are
structural and not easily replaceable, like the deck, it is worth the extra
bucks to go marine or cabinet grade.----- be careful, keep it up and you'll
finish and have to find another project.For many of us, it is the process we
love.------gary
.
question: I'm currently repairing my 36 ft trawler Nordic Star. I'm replacing some planks and refastening where necessary, also I have redesigned the bulwarks in the forward section. I decided to eliminate the inside bulwarks where they meet the forward deck. This way no water can collect in the encased bulwarks which was a source for rot. The frames now will be showing. I will paint them to match the deck and I think it will give the boat a bit of a work boat look which I think is nice. While the boat is out of the water I will also do necessary work on the hull. This is a double planked design so the gaps between the planks are pretty tight. When reading about caulking planked boats apparently the planks are tapered. The gaps between my planks seem to be straight (not tapered). Do I caulk the joints using cotton or oakum and then seam sealer such as 3M 5300 or just seam sealer? What I'm cleaning out of the seams appears to be dried out sealer of some sorts. Thanks for your!
terrific web site, I'm learning a lot. I would like to send you some pictures, how can I co that. kirk
.
Kirk;
Pics would be great--just attach them to an email---if not digitized,
have them scanned first. If the seams are not beveled cotton is not intended
and without the bevel to set the cotton against, would be useless. Use a
regular seam compound not a polysulfide like 5200, which is more like glue
and impossible to remove. Interlux makes a brown for underwater and a white
for the topsides.I like what you are doing with her and look forward to some
pics--------Thanks for the kudos on the site--------gary
.
Hi Gary
Here are some pictures. Chasing a lot of rot in the bulwarks. Thanks
for your quick response. You and your website are such a terrific
source of information. Thanks again, KIrkHi Gary
Here are some pictures. Chasing a lot of rot in the bulwarks. Thanks
for your quick response. You and your website are such a terrific
source of information. Thanks again, KIrk
.
Kirk
Thanks for the pics, nice boat. If the bulwarks weren't so necessary to
the sheer line of the boat, I would say just cut them off and put up a
stainless rail but they are important.That said and to avoid setting up the
same bad rot conditions, I would plank up the bulwark leaving a 1-2 inch
space in-between each plank and either do the same on the inside or as you
plan just leave the frames exposed on the inside. This allows for good air
circulation and an occasional good wash down with salt water which kills the
rot spores. Now send a pic when your done-------g
.
Hi Gary
I have decided to us plywood on the bulwarks and restore the boat to
its original design, although your suggestion on using planks was
interesting and I gave it some thought, but I had already bought the
plywood. Today was a very productive day I was able to spend ten
hours uninterrupted and reached a milestone, today the first section
of bulwarks was reinstalled. So instead of chasing rot and doing more
demo I actually did some construction. It was an emotional boost, the
boat is starting to go back together, It's a good feeling. I'm
thinking ahead and painting seems to be occupying a lot of my
thoughts. So here is the $64.000 question. Polyurethane or enamel on
the hull? Because the boat is stored on private property I have the
option to spray. Everyone seems to have a different opinion on this
subject. What's yours? Gary, I'm going to thank you in advance for
your contribution the DIY boat guys, I hit pay dirt with your
website. Thanks for sharing your expertise. I'm going to take my
camera with me tomorrow so progress pictures will follow this email.
Kirk
.
Kirk;
Nice to hear from you again and glad you are back on the project.
These rebuilds can get overwhelming and a bit unmanageable at times but just
showing up eventually gets the job done. With painting I stick pretty much
with oil or alkyd based enamels because of their versatility in a variety of
conditions whereas the polyurethane and epoxy paints require fairly
controlled atmosphere to perform properly although the results can be quite
impressive.Look forward to more pics. Thanks for the kudos on the site, it
makes me feel useful-----gary
.
Hi Gary
The project is progressing well. I had a week off of work so I got a
lot done. Today I installed the first layer of the final piece of
bulwarks for the starboard side. As you can see by the pictures I
have created the scuppers. And as you can see I have reformed the
stem in the area where the bulwarks will attach. Now my thoughts are
staring to focus on the reinstallation of the rub rail. A friend of
mine who is an expert on cold moulding suggests I epoxy the rub rail
to the hull. I know that is not a classical approach to wooden boat
repair, but it sounds like it might be a good idea. What do you
think? Also while I have your attention I'm having a hard time
finding Fillippine mahogany for the plank replacement (above
waterline) I have been told VG Doug Fir is a good substitute. Do you
agree?
.
Kirk;
Looking good , real good. Vertical grain fir or spruce makes a fine
planking material. I would not recommend epoxying a rub rail for the very
nature of a rub rail is that it is somewhat sacrificial and should be easy
to replace. Mechanical fasteners work best for this job. Keep up the good
work. -----g
.
Hi Gary
I'm going to take your advise and use the marine ply for the deck.
In a previous email you suggested that I do not cold mold epoxy the
rub rail to the boat, I agree. So, what bedding material do you
suggest I use as a bedding compound for the rub rail? I'm concerned
about water getting in behind the rub rail so I thought I still might
put an epoxy fillet on the top edge of the rail. In the event that
any rail need to be replaced in the future only a small amount of
grinding will be necessary to remove the fillet. Updated pics coming
soon.
Thanks for all your help Gary
Kirk
.
Kirk;
The only true bedding compound I know of is Dolfnite , available in
marine stores. It stays pliable which makes removal easy. The polysulfides
like 3m's 5200 behave like a glue, and tar roof patch is excellent but
sloppy and hard to deal with in high use areas.Dolfinite's the best.-------g
.
Hi Gary
It's me again, I'm ready to resurface the deck. The original fore deck starts out with 3/4 ply then teak slats and then later someone fiberglassed over the teak. I removed the fiberglass and teak and now the 3/4 ply is ready for a layer of 1/2 in. ply. The 3/4 was pretty bad in places so I replaced where necessary. I feel like I should put something between the old 3/4 and the new 1/2 in. ply. Do you think the lagging compound that you talk about on the website would be appropriate to put between the layers of ply? Also how do you make a nonskid deck using epson salt?
Thanks so much for your help Gary
Kirk
P.S. If you ever find yourself on the West Coast please look me up I would be honored to take you out on the boat and show you the beautiful Southern California coast and Channel Islands.
.
Kirk;
Good informing photos. Make sure any areas left behind that have any rot are treated with antifreeze to kill any rot spores before they are covered over. In between the plywood layers I would use the wet dry roof cement , it prevents condensation and seals the 2 layers together. The lagging compound is best used on the deck surface in conjunction with a fiberglass screen, bug screen works fine. First paint a coat of lagging cut 25% with water on the new deck wood, let dry. Cut your screen to size and lay it into wet full strength lagging, let dry and add coats until screen is all filled in , 3 to 4 coats. To make the non skid surface, after the 1st coat of paint, tape out your edges for water runoff, put down another coat of paint liberally sprinkling Epson salt into the wet paint.Make a shaker for the salts out of a can with holes in the end. After that is dry wash it thoroughly with fresh water, dissolving all the salt leaving behind the dimples it created, then paint one more just paint coat over that surface. Provides great non skid surface, gentle on your feet and kind to your knees when kneeling and easy to redo when it wears thin.
Thanks for the invite, I've sailed down from SF a couple of times going by the Islands but never stopping by for a look, so If I get out that way I'll let you know.------g
.
Kirk;
I forgot to mention that when using lagging compound you must add some mold inhibitor to it. Years ago there was a lagging compound called Aerbol which had the inhibitor in it and was used widely on boats especially in California and Florida. Aerbol is no longer on the market and with all the new high tech surfacing compounds, it is difficult to even find a plain lagging adhesive compound.I found one resource that you should contact to find a distributor where you are located.--g
Childers products Inc.
215-943-7600
cp-50a mvi
Chil-seal
.
question: How best would one go about a removal, refit or replacement of a mahogany garboard strakes on a carvel planked lobsterhull?
.
It can be fairly straightforward or a real pain in the butt depending on a variety of variables, but the basics are first removing all the caulking {including the cotton} from all the seams of the garboard, second remove the fastenings holding the plank on, third remove the plank and use it as a template for the new one, third fill the fastening holes in the frames and keelson with glued in wood plugs, fourth, cut the new plank slightly proud and bevel the seams for caulking, install the plank, steaming it first if need be. Plug screw holes and caulk the seams with cotton and underwater seam compound.
At each of these stages you will no doubt run into difficulties and obstacles that will have to be overcome with creativity and prayer but that is what makes it fun. Ask more specifics as needed--------gary
.
where does the stopwater (s) come into play on a garboard refasten?
.
The stopwater goes transversely through the below water line joint on the stem which usually falls beyond the forward end of the garboard but occasionally one must adapt the garboard to it. If it falls under the garboard , and since it is usually fashioned from a soft wood which can get "tired" after many swellings and dryings out, I would replace it when the old plank is removed.-------g
.
when would you join me in Newcastle (Riverside Boat Co) for this adventure!!?!?!?!?
.
Graham;
Thanks for the invite but as you know, when spring breaks , projects galore take over, plus you can handle it. One question I should ask is why does the garboard need replacement? Often they just need refastening and recaulking or a lead patch properly placed.-------g
.
I know about the enormity of projects and in no way expected you. Was kidding.
It is correct that it is re-bedding & refastening the planks is needed and attention to the stopwater must be addressed.
More thank likely the planks are sound as Norman Hodgdon chose his mahogany well. There is no plank hull rot.
I reefed the seams full midship last year both sides.
In reefing I removed lots of nasty smelling cotton, compound and some wood that shaved off with the reefing hook.
Then the estimable Paul Bryant of Riverside Boat Company re-caulked w/ cotton and compound.
Yet leaks redeveloped.
Gotta believe full refastening of garboars here is needed.
I can never see leaks other than weeps along the keel in the bilge.
Weeps can produce lots of water I know but where I can not see from aboard is the forward bilge
.
Actually, I am a bit jealous, I like that plank work. I see by your synopsis that you have been dealing with this over some time, but you have not yet refastened these areas. The dark smelly cotton is usually fuel soaked which breaks down the cotton making it no longer an effective gasket. Plus , it sounds like the planks are working too much and need that refastening which ideally should be done with reefed seams but can be effective without that effort. Nice looking boat, sweet lines-----g
.
question: Hi Gary
Just happened upon your site, very nice job you have done.
I have owned a 68' Far East Yachts- H28 for several years. She is double planked african mahogany over yacal ribs. She has brought us much fun while we have had her . While there was much "Defered" maintainence due, It was mostly cosmetic as Freyja was very structurally sound until. The other evening I got tangled in Lobster pot lines after dark under power. With a fair breeze and solid swell running I swiftly made way down on rocks before I could get sail up. Freyja bounced on the breakwater for about a half hour before Harbor patrol was able to grapple her off rocks. She pulled free and sat at water line but began sinking after about ten minutes of towing.
Patrol kept her pumped and we were able to haul her.
She sits in a reputable "wooden boat" yard and that my be part of my discouragement. They have told me she is a total and will require well over $125,000.00 to bring her back,Lol. Here's the thing, She's 40 years old bulit like a brick shit house. I paid under 7k for her in an auction a while back. The insurance is gonna give me approx 12k. I didn't have replacement value ins. unfortunately. Boatyard suggests I take the check , cut the chain and go buy a new boat. I find this somewhat peculiar considering their appreciation of wood boats. They are suggesting she be sold for salvage. I must question this and am afraid I'll walk away and two weeks later she'll be under new yard worker ownership undergoing plank replacing.
Her damage. He took most on starboard side.I would send pics but ,my camera isn't agreeing with me since salt water bath. I will get some to you. Most major - impact to front starboard below water line by rock, cracked outer and inner planks (3) Clear through, cracked rib 1 or more.its small one 1 sq 8" area seemingly sound all around.
additional damage starboard midship looks like boulder tried to peek in and then hull pushed back.No remaining visible hole through just visible crack in planks and cracked rib or two. slight impact on port bow below waterline, looks like it could be epoxied and caulked then painted. also lost that barn door rudder. At this point she was holding water in,lol, just below the puncture. Keel looks solid just scraping to fore keel. bottom is where the pain is , beside 1' section of toerail and damage that stern rail took on saving boat topsides are the same as they were.
I have 5 summers in a boatyard from 15- 20 years old ,that was a long time ago. I am a general & plumbing contractor, many tools.
I was thinking of taking the insurance check minus a little for buying her back as salvage and then fixing her.
In my heart I don't believe shes anywhere due for the boneyard.
I would like to start by making her floatable. does pressuring her cracked ribs outward and then sistering new with epoxy and perhaps mechanically sound feasible?
With planking , should I remove the completely fractured ones back to or before the next sound rib? since shes double planked, horizontal outside and diagonal underneath do I stagger the locations where I cut the planks outer and inner and just and ribs at new joint locations?
What is your feeling on west system epoxy the hull, not fiberglassing.
I want her to be safe and sound. The boatyard is all for saving her if she's taken apart bit by bit. How do you determine when thats necessary because she sure feels solid. i don't want to sail her to Hawaii just out to the bouy:)
I'll get you some pics.
Thanks --Dan
.
Dan;
The H-28 is one of my favorite boats, a near perfect balance of form and function. She certainly sounds fixable, with time being the largest commodity needed. All your suggestions are doable with the exception of quick fix epoxy which I would only use for cosmetic repairs. I would try to replace the whole damaged rib, short of that, sister those damaged and the replaced planks should be as long as practical. The yard is no doubt being overly cautious. Send the photos and let me ask , where is she located now?---gary
.
Hi Gary
Thanks so much for the quick reply and encouraging words.
I will surely get you some pics in the next few days.
Freyja is located in Ventura Harbor boatyard, Doug Shumperts yard.
After seeing her bounce on the rocks the way she did and now seeing actual damage
I am only more convinced of her integral strength. She is truly balanced and poised in heavy seas and weather. Eveyday I go by She looks more promising, The first day she was pulled things looked worse, hul was half filled and things were really hammered. Now that I have cleaned things up , drained her out and isolated the damages I feel more certain I will not let her go. The damages are very well accessible from inside one being under bunk amidship and other main damage is under v berth and good access as well.
I realize time being the biggest deal, The yard estimates it will take me 5 years trying to fix her myself. When they told me that I realized they don't know me very well. I really felt that was a scare tactic. When you see the pictures I think you will agree.
Thanks Gary--Speak Soon
Dan
.
Dan;
Is that Ventura Ca., somehow lobster traps and California don't mix, must be a Ventura in New England. It is a bit surprising the yard is so thoroughly negative, unless as you say, they want the boat. Wooden boats are built to be fixed, yours being a bit more complicated with the inner diagonal planks, but 5 years is ridiculous. You'll be sailing next summer-----g
.
Hi Gary
Thanks again. You were right the first time. Ventura , Ca. And the pots didn't mix with my boat thats for sure. Suprisingly Potting is pretty big here.
They go for the california spiny lobster out here, No claws. there are at least 100 pots off the breakwater and all around the general area
Yes, The diagonal sub planking is a concern , But I am not afraid.
The funny thing about the yard is they finished a H28 complete renovation last year, They know the boat. The manager seems like a real straight shooter and I trust him but I must say I am a little suprised he suggests scrapping her. His main point is that wood wears out 30-40 years and thats where I am. Sorry but in general the boat is solid like a rock, He doesn't really refer to the damage as the reasoning. He says he has seen people crumble to their knees , lose relationships and so forth trying to rebuild a wooden boat. I have looked around to see if possibly I could just cut the chain and buy another boat. In doing so I am realizing how much boat I already have. I think my first step, once insurance pays, will be to move her to a less expensive storage.
I'll get you those pics.
Cheers-------Dan
.
question: Gary,
great site, Got 65' rigged 90 year old baltic ex fishing boat. Oak on oak 2" planks boat has a lot of history(used between Denmark/Sweden during WW2) Presently on the hard for a renail.The planking is in good condition, however in one particular place below the waterline has almost 1" gap.the oakum caulk had been driven into a light steel vee located on the inboard side of this planking . As I wish to retain the original oak planking I was thinking of splining this gap with cedar, stepped, tarred and screwed into position on the lower routed plank leaving the usual gap on top for caulking. What do you think and have you ever come across the use of light steel vee as described.
Many thanks
Sean (Ireland)
.
Sean;
Interesting boat , send pics if you have any. Your plan sounds good and no, I have never heard of caulking to a steel V especially from the inboard side . Have fun with this wonderful classic. Ask more when needed-----gary
.
question: I have a 1961 36 ft. Chris Craft Sea Skiff and I am replacing some planks in the hull above the waterline that have rotted from leaking windows is 5200 OK to seal or bond the new planks with at the seems. Its a lap strake hull Thanks Ray
.
Ray;
3m 101sealant is better for your purpose, 5200 acts like a very strong glue which eliminated the ease of any later repair------g
.
question: Gary - I am about to replace the planks over new marine plywood on the aft bottom of my 1970 Owens Aruba . I need a suitable bedding . You recomend Henry's roof tar? I have never seen or heard of this brand . Is it readily available? Also the boat had cotton in the seams. Which is easier wick or caulking cotton. After the seams are caulked with cotton what should I caulk over with . I was going to use roof mastic from Home Depot before I found your web site. Thanks, Bill from Michigan
.
Bill;
I am not sure of the location of your fix or why there are planks over marine ply unless you are doing the Transom. Either way any brand roof patch tar will do for the bedding but for the seams you are better off with Interlux seam compound, white for topsides , brown for underwater. If the planks are tight, cotton string placed down the center of the seam is fine, but if the seam is wide and irregular you will have to use the loose stuff.-------g
.
question: Gary - I'm Bill with the 42'Owens Aruba , This boat has 19/32"thick x 5 3/16"wide mahogany planks over orginal 3/8" mahogany plywood from the keel to the chine then the plywood is 1/4" mahogany ply on the sides with 1/2" mahogany planks over. This was the last year they were built, 1970. The area I'm working on is from in front of the engine water intakes to the transom. I have about 20 planks 10' to 10 1/2' off each side of the keel. Ive been told Owens didn't build a hull this way. This is factory as you can tell the way the red colored caulk ozzed and dripped when the hull was upside down and the plywood was applied on the caulk.
.
Bill;
I have never heard of that type of construction but that's what you got so that's what you have to deal with. I imagine it was an attempt to keep the hull light and strong.--------g
.
question: Gary - It's me Bill with the Owens again . The orginal bedding for the planks on to plywood was the canvas coated with "Thiokol" which looked like dried out window glazing when I removed it. The reason this project started was I had some rotted frames and punky plywood in the bottom. I think the frames or large bottom cross ribs rotted from no air circulation in the bottom behind the shaft tunnels I intend to remedy this . I have replaced all the bad ribs and cross members , the plywood is now marine 3/8" one coat each side of West epoxy and painted inside. This spring I am ready to replace the bottom planks many which came off and are still good ,all old screw holes plugged . After reading many of your suggestions I am not sure what to do about the bedding compound. Do you know if this Thiokol is still available? If not, the roof mastic spred in a thin layer should do the trick . Any other suggestions will be appreciated .
I have orginal sales brouchures from 1967 that say the boat was doubled and that the inter layer was 3/8" but they don't say it was plywood. Thanks , for your help and I enjoy the suggestions and advise you have given others. You have a great site. Bill
.
Bill:
Thanks for the compliments. I don't believe Thiokol is still available but actually I think a thinned coat of the roof cement would do just as well. Sounds like you bit off a large project and are bringing it home. Congratulations-------g
.
question: HI Gary, I have finally found you again.Saw your column somewhere, didn't save the website and have been hunting for you and yr advice for the last couple of days.Reading many of your Qs & As I have learnt a lot but haven't spotted this query yet. I have just bought a damaged neglected do-up. Kinya is a 1964(ish) german built 37' mahogany carvel plank sloop. She must've made the builders proud enough to wear their plate: Matthiesen & Paulsen from Arnis/Schlei.(Bau nr.212 or 272).I Know nothing of her history except a couple of years ago she had broken her mooring in a storm, kissed a few yachts as she ventured `solo' up the estuary, unceremoniousy resting on a sandbar. Her full keel, and hull (apart from repairs) look fine even after her 14 month layup in the previous owners backyard(Obviously taken there immediatley after her mishap). Her hull had hardly opened and she only dribbled a little when I was forced to put her in the sea for a quick limp to her new home.!
Her mahogany planks seem solid except for where 2 planks (on both starboard and port above the garboard have been relpaced with kauri. They had also been caulked. The rest of the hull for what i can see, is double plank and the joins seem so tight(to my amateur eye) that I cannot imagine cotton or anything else fitting in the hairline joins other than the red coloured seam filler. My questions. 1) Is/was it a common practice for yachts of this area/vicinity to start with a couple of single planks above the garboard ? 2) Could the repair work have been carried out `because of the rocking back and forward on the sand bar and could she have some keel damage ? The keel bolts are bronze and look `solid'would sending a few pics help?
question: Continuing query for Kinya. My first attempt to bring Kinya to her new home went horridly wrong when I lost oil pressure and gained a sickly `knock' in the engine. off went the motor which was charging the batteries which were working hard out for the bilge pumps which were called into action after we had pound for 5 hours into a 1 m slop, creating seam openings I would guess were in the vicinity of 150 gallons per hour. So detoured to a marina where she was put in a sling and I removed all caulking from her leaky bits and (amateyrishly/regretfully)`rammed' some fresh caulking in followed up with sikaflex and 3" ply planks with ss screws as patchwork to get her up for the other 10 hr leg of her journey to auckland.Now I am having fun trying to remove all sikaflex. Whats a good easy way to remove this rubbery substance ?
thanks Tony Auckland,NZ
.
Tony
--Interesting boat, and yes Pic's always help. On a double plank construction there would be no reason for any single planks above the garboard. Sometimes for weight reasons the double planks ended at the waterline with singles going up the topsides. Seems to me the new planks you describe because of their location and the fact the replacements were on both sides of the boat, that the old planks were removed to inspect and make repairs to some damaged frames. They were just lazy in putting back single planks or the repairs were not done and these planks were made to remove again to make repairs at a later time. Also often with double planking the seams were matched fit, those compulsive Germans, and required no caulking. Bronze keelbolts rarely break and if they were bent you would see that in the keel position. To your second email,
Nasty stuff that polysulfide, no simple way of removal although I hear that heating it up helps. If you have no inside access, you should pull those caulked planks and see what's up and then double plank as per the rest of the hull.---glad you found me-------gary
.
question: Nice message board! I am the very
proud young owner of a 1954 Owens Flagship 29' Motor Yacht, She is
double plaked Philippian Mohogany and has some rot problems. My
question is now that I have stripped the MANY coats of paint from the
hull what type of seam compound should I use for the 1/8" gaps between
the 1/2" planks. Also the screw holes, what shall I fill those with.
The stuff I am plucking out seems to be brown wood filler. Lastly,
about 6 planks need replacing for sure, the boat is now dry and been
out of the water for years and the new wood is also dry. How much gap
should I leave between the new & old planks? Last question, a
couple planks just have 1/4" of rot on the outside edges of the seams.
Can I shave off the rot and fill the gap with an epoxy sawdust mix? At
$4.50 a board foot the mohogany is costing me a fortune!
Thanks for your advice,
Ben
.
Ben:
You have one of the better built Owens, over the years they used many
different construction methods and materials, but the double planked
ones were the strongest of the lot. I would use Interlux bottom seam
compound to fill the gaps between the planks, polysulfides are too
permanent and when the bottom swells most of the seam compound will be
pushed out. With the oil based compound you can easily trim off the
pushed out excess when next you haul the boat. I would fill the screw
head holes with an epoxy paste like MarineTex. I am assuming the seams
are not caulked with cotton. Since the new planks will swell
considerably, I would leave a good 1/8in gap on all seams including the
butt ends. Using epoxy to fill in the edges of the planks where you
have removed the rot is not a good idea, it will fall out. Instead, put
in small wood dutchman using epoxy, but do not epoxy them to the
underneath plank, however screwing them to that plank is ok. Screws do
not inhibit swelling of the wood, epoxy does. The outer and inner
planks will swell at different rates so any epoxy between the two will
cause problems. When you pull off the old planks that need replacing
look closely to see if there is a bedding compound between the two. If
so, you do the same with the new ones. Roofing tar is cheap and works
well as an underwater bedding compound. When you launch the boat have a
good bilge pump, she is bound to take on water. Unless there is a leak
not related to swelling, the amount of water taken on should 1/2 itself
every 24rs. If she still takes on water after a week there is probably
a non swelling leak that must be tracked down. Have fun and feel free
to ask more questions as you work along.------------g
.
question: Great page, Your detailed answers
are greatly appreciated! I have another questions about my '54 Owens, I
had asked about plank replacement & rot repair. My next questions
is about proper finishing sequence. I have been told to treat the bare
wood with a mix of raw linseed oil & turpintine. Should this
treatment be done before or after calking seams and putty filling screw
holes. The seam compound instructions say to primer the wood first.
What should by steps be in order? Strip, Treat, Prime, Seam fill,
paint? Will the putty stick if the wood is saturated with linseed oil?
Lastly, the bottom is fiberglassed over the wood, just the transision
from wood to glass is starting to seperate now that I have stripped the
paint. What is the best way to re-seal and fasten the glass to the wood
to prevent the glass from seperating worse. This area is right around
the water line. The rest of the bottom is in great shape.
Thanks again for your informative page and prompt answers for us green
horn backyard boat lovers.
Sincerly,
Ben Roche
.
Ben;
Thanks for the compliment, I enjoy answering the questions. Your
sequence is basically correct. If you thin the linseed and let it warm
up a bit in the sun, it should soak in well and not prove to be a
problem with the seam compound. You may have to wait a couple of days
for it to dry. If you are filling holes or screw heads with epoxy, do
that before you oil. Prime your seams with an oil based paint before
you putty as well as using it for your general painting. If you are
going to use polymer paint, don't oil.
Where the fiberglass ends and the bear wood begins is always a problem,
especially on older boats. This is a critical area because once water
gets under that glass it will keep moving and eventually separate the
two. I usually trim the glass to a nice true line and cover the edge
with a screwed on batten well bedded in a polysulfide like 3m 5200. You
can round off the batten to make it "fit in". Also, often with the
Owens I worked on I put a similar batten well bedded in the joint
between the garboard plank and the keel for this area seemed to be a
leaky spot. You may not need this but if you find your boat has a
steady leak, the bet is it's coming from that area. Have
fun----------gary
.
Great, I am not as dumb as I feel with this
project. I like your batt Idea,
I have already ordered some Marine Tex for the screw holes so I will do
that
before I treat the wood with the linseed oil. I have a detailed process
sent
to me by a Shipwright in Canada about using thinned linseed oil 75/25
then
50/50 then 25/75 on the last few applications and letting in dry for a
week
before primer. Have you heard of this?, he said he restored his boat 20
years ago this way and has lasted well.
Thanks again.
Ben
.
Ben:
The linseed oil treatment is pretty tried and true, but normally it is
used on softer woods like pine, spruce, fir etc. because they are
porous. The hardwoods, maple, oaks, mahogany, etc., don't benefit that
much because they absorb little. I have never used it on Mahogany, but
if it is extremely dried out then I am sure the linseed treatment as he
specified is a good idea---------gary
.
Thanks for the update, Yeah the 75% of the
planks have been exposed for over
a year, I bought the project unfinished and stripped the last 25% of the
paint over the last weekend. Now I need to find a trick to get the old
seam
compound out. Any ideas? The stuff is tight in the plank gaps and
brittle so
it looks like a long, long, tedious project. Fun, Fun, Fun!
Thanks again and I will leave you alone for awhile.
TTYL
Ben
.
Ben:
I don't mind the questions. It is hard to get the old caulk out. The
quickest way I know is to use a small circular saw with a batten tacked
up for a guide. Wear goggles and try putting a carbide tip blade in
backwards. This method seems arduous with all the measuring and moving
the batten, but in the long run it is much faster and leaves you with
good seam edges.----------g
.
I have a Folkboat that is planked with i
believe fur. It was origionaly varnished in side. The varnish is
lifting espically below the waterline and the wood is dry and cracking.
What should i use to revitialize the planks.
Regards
Erik Midtsjo
.
Erik:
You have one of the prettiest boats ever designed. With the planks
below the water line I would strip off the remaining varnish and oil
them. You can either thin down linseed oil with turpentine or you can
use an oil called Penetrol, available in paint stores. Give them
several coats or until a little oil remains on the surface, that way
you know the wood has absorbed what it needs. Wipe off the excess and
you have a happy boat.------------gary
.
Hi My name is Rich Sank I own a 40 post located in CT. She is a soft chine vessel. My problem is the stbd aft quarter has rot from fresh water run off. The top 2"-3"of 4 planks are rotted. I've removed 6 planks to gain access to good wood to make the repairs. There are 6 oak frames that need replacement. 2 frames below the opened area are in question (below the water line).1 is soft and the other is cracked. I've owned ELAN for over 15yrs and never had to make a repair of this type. I need help. I was planning to ship lap new oak to the old but have only apx 4"-5"before the hull starts to curve. I forgot to mention the frames are gusseted.Also I thought of sister ribbing along the 2 damaged frames. Any input you have would be greatly appreciated. Rich Sank
.
Rich:
Sounds like quite a project. I would sister those ribs rather than try
to scarf into them, it will be stronger that way. Also make sure the
new planks are well staggered so the butted ends don't line up
vertically. Other than that, it sounds like you have the project well
in hand. If there are some rot spots that will remain saturate them
with antifreeze to kill the rot spores. Good luck and feel free to ask
more.------gary
.
Hi Gary,
I am new to the wood sailboat scene so I apologize for my ignorance. A
swing keel 1939 36ft wood sailboat sloop is the what I have been
thinking and preoccupied about. The designer is Frederick Geiger, and
builder was Morris Johnson of Bay Head N.J. The boat has a diesel Water
Mota Sea Panther engine.
At this point I am asking is what are the critical elements I need to
look at in inspecting this boat.
General outside inspection:
1. The wood above the waterline appears fine. There appears to be some
rust mark. It needs repainting.
2. The mast looks solid (made of wood I don't know what type) and tall
with rigging in place (goose neck, forward and aft stringers?, runner,
side rigs, spreaders).
3. I walked on the deck and it appears solid. Some areas have cracks. I
am not sure if the floor was covered with fiberglass?
4. The original port holes look fine. There are areas where paint is
peeling. But floor does not seem to flex.
5. The hatch rim s look fine, some loss of varnish.
6. The stanchion feel solid, the bow pulpit moves a bit.
Cockpit
1. I looked below the cockpit into the back transom, it looks dry and
wood appears clean and solid.
2. The engine looks dirty, greasy and rusty at some parts. The mounts
and wood area around looks solid.
3. The area around where the shaft goes out of the boat looks old. No
water is dripping down. Looks that shaft has not been rotated for
awhile.
Inside
1. The inside definitely needs work. The cabinets were moved around, and
some trims were taken out.
2. The floor planking was removed.
3. I am trying to examine the lower hull for structural integrity. There
is some water but it appears to be coming from the outside going inside
and down the mast and crack above.
4. There are spars? going from each side to the center. There is a
center keel that appears to be darker wood than the other?
5. Some big fat bolts and nuts around this beam or through it?
6. The bilge section toward the back underneath the engine looks fine
with some water.
7. The mast goes down to the hull. It appears solid.
8. The forward section V berth looks dry and fine.
9. The toilet has a pump.
10 I tried examining the water intakes and the valves. I did not try to
turn them incase water started coming in and I couldn't stop it
afterwards.
11. Side of the wall appear dry and solid.
12. I am not sure how the swing keel works. But there is a center table.
The leaves fall side words. A cable from above deck comes down a brass
tube?
Engine
1. The engine has been sitting around for 3 years. The marina said it
was winterized.
2. There appeared to be some water in the oil?
3. The starter is dead so they are trying to get another.
I'll have to see if they can get it to start.
The boat was lifted up last year for cleaning and the marina people said
the hull was fine, and paint was also fine.
Anyway please comment freely about what I have said, especially about
critical wood areas of the boat. I am concerned for instance about the
back section where the shaft comes in. I am afraid the wood might pop
out and water comes in?
If you can answer before Friday would be great since I have to make a
decision by then.
Thanks.
J.B.
.
JB
Certainly sounds like an interesting boat. I would guess it has a
centerboard rather than a swing keel for they are rarely found on
wooden boats. My best advice is to get a surveyor to check the boat out
or at least pay a local boat carpenter to go over the boat. You say you
are a wooden boat novice but you have done a commendable inspection of
the boat. From what you report, the boat sounds fine and depending on
the price may be a good deal. If you can't do what I suggest above, you
should acquire a small wood mallet and tap on any areas of the boat
that look suspicious. If the wood is sound you will here a high pitched
sound, if there is a problem such as rot or delaminated plywood you
will here a non resonating thud. Remember fresh water causes rot not
salt water so the bottom of the boat is probably sound. You should also
be aware that buying a wooden boat changes your life forever. You will
fall in love but wood boats are demanding partners and you must enjoy
working on them as much as sailing them. Got to www.google.com and type
in Geiger sloop. Good luck and I will be glad to answer any specific
questions.----------------gary
Ps. On the inside keelson the big fat bolts are probably keel boats,
tap them with a metal hammer and hopefully they will ring rather than
thud.
.
Gary,
Thanks so much for your lightning reply (much appreciated!).
With your experience. What price for this boat is Not a good deal (being
conservative and assuming worst case scenario)? Above $10k?, or $5k?
Is $3k a good deal?
Thanks!
JB
.
JB
If you can buy a sound professionally built 36ft wood sailboat less
than 50 yrs old for under 10 thousand you have a good deal even if it
needs some work. Over 10 you would have to consider how much more you
would have to spend to make it A-1.
Of course a lot has to do with what you plan to do with the boat, there
is a big difference in demand on the boat between a little coastal
cruising versus deep water extensive cruising. But for $10,000 or under
you can make a mistake and probably recoup your money. If you can get
it for 3,000 it's worth it even if you would use it as a front yard
decoration.----------------gary
.
Hi Gary,
Yes I have bought the boat (pending they get the diesel engine
running). I added a drawing below to help explain what I was describing
in my previous email. The issue is about the section where the rib is
bolted to a piece of wood, which is bolted onto the keel. The bolts
have rusted out in some of these fore foots. Bolting new wood to the
rib does not appear to be a problem that I foresee. But I am not sure
about bolting the fore footers (sorry if this is not the proper name, I
read an article and they were using this terminology) onto the keel. It
appears that the head of these vertical bolts were bolted from above. I
am assuming they bolted these bolts without penetrating through the
keel. I am concerned about having a firm flooring, but more important a
structurally strong lower hull.
Can I still bolt the forefoot without having to go deep into the
keel.Oak appears to be the wood for this structure from your response.
If the existing would is not rotted out but only water logged, can I
reuse it. Or better to replace it.
When does one have new keel bolts added? Is this an expensive job.
Can you give me a description of how the garboards are attached to the
keel and
what do the keel bolts do and what does the keelson do. This boat has a
center board (a drop keel)
Thanks again Gary I appreciate the inputs.
JB
.
JB
Yes, that helps. Congratulations on your purchase. Is the boat in or
out of the water? Water logged wood is fine, in fact the original wood
in a older boat is probably of better quality grain and strength wise
than what we could replace it with. If the wood isn't spongy I wouldn't
replace it.
The keel is the protrusion outside the boat, the keelson is the bottom
most piece of interior structure inside the boat, it is basically on
top of the keel but inside the boat [see drawing]. On sailboats the
outside wood keel is called deadwood onto which is usually attached a
large lead or iron keel. The metal keel and deadwood are bolted up
through the keelson and forefoot [floor timber]. Also the floortimber
usually has a couple of driftbolt fastenings which are like long nails.
On your boat there probably isn't a metal part to the keel since you
have a centerboard. Usually this type of sailboat not having the heavy
metal keel to offset the forces on the sails, has some internal ballast
to provide a lot of weight at the lowest part of the hull. The
centerboard when down does not stabilize the boat but only keeps it
from going sideways when sailing off the wind. When motoring or sailing
downwind the board is in the up position.
New keelboats in a metal keel boat is difficult and expensive for a
variety of reasons, but keelboats through just a wood keel, depending
on the length of the bolt needed, is not difficult at all. On a
centerboard boat the keelbolts are under little stress compared to the
stresses on the keelboats of a metal keel sailboat.
Where the garboard plank joins the keel there is a notch, called a
rabbit, in the keel that the plank sits against and is caulked with
cotton. The plank itself is fastened at the ribs and into the floors
and sometimes the keelson.
I checked out the stsci website, most impressive. What do you do
concerning the
hubble telescope? I am a bit of a space nut ---------gary
.
Gary,
Thank you for the congratulation (I am still thinking about the
work),and for
your reply and the drawing. I have a better feel of the hull structure.
Its good you got to visit our site at the Hubble Space Telescope. We
are an
institute composed of various universities with the goal of performing
astronomical research. I am not an astronomer. I am a science
instrument engineer
and part of the engineering team here. I am responsible for the
operation and
engineering issues concerning the instruments, making sure our science
instruments are working and performing as designed. Of course they
never work
without problems (ps don't tell anyone). The instrument that shows most
of the
discoveries to the public is called the Wide Field Planetary Camera.
This is the
instrument I have worked with for several years.
Anyway now you know what I do (sorry if it was boring). Sometimes it
can be. But
it also gets quite busy when things go wrong or we have a problem.
Anyway we try
to do our job well here.
The boat is in the water. I will be getting the design blue prints this
weekend
from the marina. Will this help in determining whether and by how much
I could
safely screw the forefooters in?
Thanks Gary, Please feel free to ask me anything about Hubble
JB
.
JB
I should have known you were an engineer by your drawing and by the
thoroughness of your questions concerning your boat. Yes, the working
drawings should give you the thickness of the keel, but when you refer
to rebolting the floors, forefoots, this can only be accomplished with
the boat hauled out so you can get to the bottom of the keel. Maybe you
are referring to lag bolts, which accomplish the same as drift bolt. In
order to avoid electrolysis make sure the metal you use is compatible
with what metals were used to build the boat. Electrolysis has ruined
more wood boats than rot.
Your job sounds quite fascinating and must demand a high degree of
precision and little room for compromise. With older wooden boats
repair and restoration is a continuous process of compromise, but there
are no shortcuts. It is best to stay with the tried and true materials
and methods with which the boats were built.
I am sure you take great pride in the Hubble. It has exposed people to
the wonderment of space and hopefully with those incredible images
broadens our perspective about our own humble relevence. Keep those
images coming. Where in the country are you and your boat
located?------------gary
.
Gary,
By now all that snow must have melted. Gary that Yawl on your web site
is a
real beauty! I can understand now why you love working on these boats.
Well in
my mind you guys were still first (next time remind the skipper to be
on the
right side).
The saga about my boat buying is still not over. I technically bought
it, but I
told the owner at the marina to give me more time. They just got the
diesel
engine running the other day. The master mechanic wants to take it out
for a
spin. I told him I was going to come along (after all I may be the
owner). But
I am wavering whether to go for it, or settle with fiberglass. Sorry if
that
word hurts your ears. I love wood boats, but I don't know if the work
in the
hull (ribs, footers) is worth the undertaking. I started calling around
for my
white oaks, and silicon bronze fasteners.
I did get a hold of the original blue print. I see where the word blue
came
from. The paper is practically all dark blue with white lines. I am
wondering
what is the best way to fasten the footer on top of the keel (other end
bolted
to ribs). There is about 4.5 inches before the iron keel ballast. Also
if I
sister the lower section of the frame, is screwing the end to the keel
fine?
I'll let you know of any new developments in my boat saga (wife is
getting
tired of conversation about boats).
I was able to confirm that the keel is a swing keel. The blue print
also shows
it.
JB
.
JB;
I am afraid I was the skipper. Thanks for the update and I am surprised
the boat truly has a swing keel rather than a centerboard. The truth of
the matter may be your
biting off more than you can comfortably chew. If you were experienced
with wood boat restoration and loved doing it than It could be a dream
boat, but if you want to go sailing there is nothing wrong with a glass
boat with a nice wood tender. I have seen too many good intentioned new
wooden boat owners having to walk away in the end because it was just
too much. Don't let that happen to you or the boat, or your wife. Keep
me informed.--------gary
.
Hi Gary:
I am thinking of buying a 40 foot 1946 wooden boat built by A.C.Benson
of Vancouver, B.C. (builder mainly of tugs). She was apparently built
as one of the WW II coastal patrol fleet. She has a double-planked
hull, yellow cedar, I believe, with the two layers of planks fastened
together with copper rivets. The inner layer of planking is laid
diagonally onto smallish oak ribs, and the outer planks run on the
opposite diagonal below the side guard rubbing strips, and horizontally
above the guard. Around the bow there is a third layer of outer
protective planks.
I have been told that this type of construction is practically
impossible to repair when there is hull plank damage. Could you give me
your opinion on this? This is the main issue in my decision of whether
or not I will buy this boat.
Thanks a lot,
John Segal
.
John:
Sounds like an interesting boat. This type of construction is
incredibly strong but as you have heard is more difficult to repair
then a traditional carvel planked boat. To fix a small area of damage
and achieve structural integrity you need to make a larger hole in the
outer planking so as to repair the inner planking. However I would not
base my decision to buy or not to buy on this fact alone. The difficult
fix is offset by the additional strength which would minimize damage if
a mishap occurred. The boats been around a long time attesting to its
good construction. If she has no discernible rot don't let the repair
difficulty ruin a good thing. Good luck---gary
.
question: Have a 1941 Lightning # 654 built in
Erie, Pa.
We have wide gaps in plank of hull which causes leaks during summer use.
CLeaned and recaulked two years ago. Other than leaking (boat is sailed
in
Lake Erie near Buffalo) the boat is in good condition.
Considering epoxying but my brother does not think it wise. Other
consideration is thinning caulk to it penetrates planks. Any other
suggestions?
.
Hi:
I had a lightening and had many good sails, in fact it was the boat I
tried out the mast mate prototype on. When you say it was recaulked
does that mean new cotton was put in the seams or just more goop. If
the cotton was removed and replaced with high tech goo the boat will
continue to leak. You have to have the cotton. If the cotton is there
and was properly set and the boat still leaks you may have to put
splines in the seams, glued to one edge and caulked tight with cotton
to the adjacent edge. Over the years of expansion and contraction the
wood gets a bit fatigued and doesn't expand with the force it had in
its youth. Epoxy in the seams, other than a glue for the splines, will
solve the problem for only very short time and make it much more
difficult to fix properly. Here's a hyperlink to the lightening website
where you can get many opinions Woody the URL is
www.lightningclass.org-good luck--gary
.
Hi, thanks for emailing back to quickly. Yes,
the boat was caulked using cotton.
What is a spline and where can it be purchased? Thanks--Sharon
.
Sharon:
Of course I have to ask if someone experienced caulked her? A spline
has to be made, its a piece with one side as thick as the seam,and the
other side tapered down so you end up with a long beveled piece that
looks like this V end on The fat side goes to the inside the thin to
the outside. One edge is glued to the plank edge the other is caulked
with cotton to the other plank edge. You may need someone familiar with
wooden boat carpentry to do this kind of work. Also, you don't say if
the boat remains in the water or you have it on a trailer and it spends
a good deal of time dry. If the latter is true your leakage problem
could be solved by keeping some wet towels draped over the inside
planking when the boat is out of the water. Hope this
helps--------------gary.
.
Forgot to mention, yes someone very
experienced caulked the boat.....but I don't know if he is aware of the
option you listed below, I will pass on ....thanks so much!!
We may have an additional question regarding the Centerboard.
Sharon
.
Sharon:
OK, feel free to ask away. I had to rebuild the centerboard trunk on
mine. Have your husband check out the forum at the lightening
website-----www.lighteningclass.org--------gary
question: I have a 1952 vertue, The boat is very strong but a recent
problem has stumped me. On a starboard tack I will separate planks on
the port side below the waterline directly even with the mast support.
After I was back in port I tighten the starboard rigging slightly and I
produced the same result. 1st I am not sure what is causing the
problem; frame to plank construction, the mast step, ect... 2nd I am
not sure what to do about it; should reinforce to frames at the spot on
the leaks possibly adding a short rib. I am not sure what to do.
thank you
Joe
.
Joe:
Nice boat.The first thing is to keep your rigging just taught, not
tight. Basically under sale the forces at hand are trying to push the
mast through the bottom of your boat. The lowest plank called the
garboard is fastened to the keelson and this joint being the closest to
where the mast is stepped, takes tremendous stress. If this joint has
not been recaulked, with cotton, in years and or the fastenings are
loose, it will leak. I would sail the boat with less tension on the
standing rigging and see if it still leaks. If it does you have to haul
the boat and check the garboard fastenings and recaulk with cotton. If
the fastenings are bad there, they probably are bad everywhere and
refastening the entire bottom maybe necessary. Not as bad a job as it
sounds. Hope this helps and if you need to ask more feel free.
-----------gary
.
question: I have a 1956 Chris Craft Sedan
Cruiser. It is double-planked mahogany below the water line, with
batten-planked mahogany above.
I have been told the original double-planked construction relied on a
bedded canvas membrane between the two layers, with no caulk between
the planks on the outer layer. I need to replace some bottom planks,
inner and outer, and need to scarf in a new section of chine. I can't
find any trace of the canvas layer. The boat has been out of the water
for a couple of years, and the bottom planks have gaps of 1/8" to 1/4",
which have been filled with some kind of rubbery caulk. Can I epoxy
splines between the bottom planks to take up some or all of the gap, or
would this cause problems?
.
Hi;
Nice boat you have. It is not advisable to spline bottom seams
especially on a boat that has been high and dry for a while, use a
flexible compound, like putty or roofing cement to fill the seams. The
planks will swell and force most of it out of the seam. Do not use a
polysulfide like 5200 to caulk the seams, you'll never get it out and
it to will inhibit the seams from swelling. I would use the wet dry
roofing cement in between the planks, with canvas or without. The
roofing cement is not only cheap, the toredo worms hate it, guess it
doesn't taste to good. If you have further questions feel free to
ask.--------------gary
.
Dear Mr. Wheeler,
My husband and I are looking seriously at a 1961 Cooper MY with a raised
pilothouse. The boart was constructed in British Columbia on the Frazier
River at the Cooper boat yard which still exists, but now owned by
Queenship.
This boat appears to be a one of a kind and the only Cooper MY made of
wood
seen by many brokers in the WA, OR area.
The boat is need of extensive restoration but it is the hull that
seriously
needs attention.
It has been in fresh water for a known 15 years. It has been 10 years
since
its last bottom painting. There does not appear to be any signs of
fastener
bleeders on the side, even thogh the paint is peeling now. In addition
there
are several bad planks. Some of the ends have rotted away on planks
above
the waterline towards the back near the transom. The hull is mahogony
and I
have not gotten an accurate measurement of plank thickness or rib size
as of
yet. Estimates on Honduras mahogony have been made and I have found a
well
priced source of wood in Seattle, a boat yard for do-it-yourselfers near
where the boat is located presently.
I would like to know about replanking such a boat. The present owner
built
houses for over 40 years and he says it is no big deal. When talking to
various yars they want a whole lot of money for replanking and indicate
that
it is not that easy.
It is doubleplanked below the water line for sure, it appears to be
single
planked above. It seems as though using epoxy for gluing the edges and
onto
the ribs may be an option when adding new ones. There seems to be lots
of
great caulking products, rot treaments and fillers and so forth. Is it
that
hard to shape 12 and 16 foot planks on a fairly stright sided boat? The
chine area seem OK so for as we have checked.
Is cutting the bevels really hard? How do you do this, what tools are
best.
Seeing is knowing more and if we could see it done we could better
estimate
whether we could do the work ourselves. We know however it would be too
expensive to have someone else do it the work. Bottom line, if someone
does
not do this work very soon, she will be lost to the world and she
really is
beautiful. The current owner is too ill to do this project and it was
his
dream to do it. She is unique and beautiful, please advise. Cecilia.
.
Cecilia:
First, spend the money for a good marine survey so you really know what
you are getting into, all wooden boats can be rebuilt, the only
limitation is cost and or time . There is nothing magical or
prohibitive in re-plankig or general restoration. There are no
specialized tools except possibly for the caulking tools but also there
are no good shortcuts such as using hi-tech goos or epoxy. The basics
are best and rebuilding a boat using the same methods and materials as
when it was built is the only way to go. It's a big commitment, a true
labor of love but well worth it. I need more specific particulars about
the boats overall condition to say anything more of use. Here are two
books I recommend, both by Peter Spectre---Frames, Stem and Keel
Repairs and Planking and Refastening both available as a package deal
from Amazon.com for about $50. Keep me up to date and feel free to
throw more questions my way.---------------------gary
.
question: hi gary, what is the word on ice
sheathing (narrow planking)over the main planks? Would irish felt under
be the thing and with tar? I'd be afraid of the tar seeping on thoughs
warm days.would you screw or nail the shield to the underlying planks
only or through to the frames? would really like your thoughs on this.
thanks dave
.
Hi:
What I have seen between the planking on double planked boats is canvas
and bedding compound but I would think tar and Irish felt would be
fine. For repair purposes, screws are always preferable over nails [use
a similar metal to the main plank fasteners] and if the underplanking
is in good shape attaching just to it would be adequate. However, if
the purpose of this shield is structural rather than just protective
you should fasten to the frames as well as install the shield as strip
planking i.e. each pieced coved and fitted, edged nailed and glued to
each other, a much bigger job but one that has saved many older wood
boats from the chainsaw. Hope this helps, ask more if needed. Good
luck---------gary
.
Hello My name is Rich and have a problem that
seems only to be in the engine room. I've owned E'lan for 15 years and
developed this fuzz on the int. planking of the engine room some time
ago but didn't know how to go about fixing it. Before bring the boat to
the N.E. 2yrs. ago someone suggested scraping and then spraying it with
denatured alcohol. The fuzz came back. The hull is white cedar on oak
frames single planked. can you help? Thanks Rich
.
Rich;
You have an electrolysis problem. Most likely the engine ground or the
battery is leaking current into the hull. This current aided by the
salt water environment is increasing the electrolytic interaction
between the plank fasteners and other submerged dissimilar metals. I
first noticed this wood fuzziness around through
hull fittings on wood boats. This problem was resolved by proper
grounding of the through hulls plus proper placement of sacrificial
zinc's. I would suggest you find someone in your area that deals with
electrolysis and have them check out your electrical system and
sacrificial zinc placement. Just adding more zincs can make it worse.
Also if your boat is kept in a marina that has liveaboards there could
be stray current coming from other boats and extension wires in the
water that would exacerbate your problem. Get this resolved because
eventually electrolysis will break down the wood
fibers.--------------good luck-------gary
.
Hey Gary I forgot to ask how do I treat the
planks after the electrical problem is solved?
.
Rich:
Because of the cell fiber breakdown you need to stiffen the fibers up
before you can sand them down. I would use a wood sealer, then sand
lightly and, if you want, paint---g
.
Something like coupernal?
.
Rich;
No, that is more of a preservative, good stuff but for this you want an
acrylic sealer available in any paint store. Actually, if you are going
to paint it with an oil based paint just add some thinner to the 1st
coat and sand afterwards and skip the sealer-------g
.
question: Gary, i am restoring an 1960 45'
chris craft connie, and have a question about the seams in the hull.
thge hull was sandblasted to remove the old paint and such. i have
sistered the fasteners with on izs larger bronze screws, each bedded in
5200. the blaster removed ed old cotton caulking along with the paint.
my question is would your roofing tar workin the seams without
replacing the cotton. i plan to fiberglass the hull using Allan Vaitses
method. thanks chuck
.
Chuck;
Nice boat. No, you wouldn't use the tar in that way, in fact, if you
are going to fiberglass the bottom, one would normally epoxy wood
splines in the seams. I am not sure why you are going to fiberglass
since you have already refastened all you have left is to recaulk with
cotton and seam compound. Fiberglass over Carvel planked boats has a
way of separating from the hull after a bit of use. I am not familiar
with the Allan Vaitses method. Where on the net would I get some info
on it?Ask more if need be---------------if not ----good luck with your
project---gary
.
Thanks Gary i really appreciate your helping.
my problem is find some one to
do the cotton in the seams. i thought that it would be a very expensive
job.
Vaitses is not on the web ,ifound his book thru Amazon . is there a
video
on doing the cotton/ thanks chuck
.
Chuck:
Your welcome. Where are you located? It would be much better for the
boat to caulk it rather than glassing and there is no magic to caulking
except having experience doing it. It's not a book thing, it's a feel
thing. You need to find someone in your area that knows how to do it
and have them give you a few lessons. If you are in a boating area
there are those about that have experience. Check the local boatyards
or the bars down on the waterfront.--------------------gary
.
Thanks Gary, the boat is Port Charolette Fla. chuck
.
Chuck:
Well, I am not close enough to do you any good, but I am sure you can
find a local who can show you what to do------------------gary
.
question: Gary, is it possible that 1960 45' chris craft connie would not have cotton in the seams, and that a good seam filler is all that is needed before bottom paint? thanks chuck
.
Chuck:
Yes, Some Chris Craft carvel planked boats had inside battens running
the length of each plank. These battens are bedded and screwed to the
adjacent planks making the seam watertight as well as giving the hull
rigidity, fulfilling the same purpose as cotton in the seams. Although,
the sand blasting would take out some of the cotton, there should be
some left in some seams. If the seams had cotton they would be beveled
like so >, otherwise like so = and a cotton caulked seam would be a
bit wider than a matched seam. If your boat has been out of water a
long time the seams would have opened considerably and will need a lot
of swelling. If the seams are matched without cotton, the roofing
cement tar is a cheap way to go since most of it will be pushed out as
the seam swells, but regular underwater seam compound [ Interlux} would
be preferable.Check the inside of the boat for the battens. Let me know
what you discover.------------------gary
.
man you made my day!!! no cotton. thanks chuck
.
Chuck:
Appears so, but there are some areas that will have been caulked and
should be recaulked if the cotton is gone. The seam along the transom
and along the bow and along the chines and the seam at the garboard
plank i.e. the seam next to the keel. It shouldn't cost too much to
have those done-----gary
.
question: Gary,
My names Rob from Sydney, and am interested in a semi-restored 26 foot
spotted gum timber recreational/party/fishing boat built around the
1950's. The cabin, decks & cockpit have all been recently replaced
with celery top pine. She's powered by a rebuilt Perkins 6354 Deisel
and i'm told the vessell weighs about 7 tonne. Originally built as an
agrigultural fishing vessell.
My only concern is several (approx 6) cracked ribs, located behind the
engine, towards the stern. They have cracked at the sharp bend into the
bilge area. I'm told its built like a brick outhouse, but am concerned,
particulary with taking her on deep sea day fishing adventures. If you
have time i'd love to hear from you. Rob
p.s Is she overpowered ?
.
Rob;
Sounds like a tough old boat and by your description she doesn't seem
overpowered. Although, memory alone could probably hold her together,
you should sister those ribs just to put your mind at ease when your 20
miles off shore in a blow. To avoid similar breakage over time, it
would be best to laminate up the ribs. Over the last year I have been
assisting, in advice only, a sailor named Warwick in Brisbane who has
taken on a project not unlike yours albeit a sailboat and a more
extensive rebuild. Since I am not familiar with the woods of Australia
nor the availability of epoxy etc., it might be good if you emailed him
at--fords@iprimus.com.au. You can review his project on my website--go
to Questions and then to Dialogues with Warwick or use this hyperlink
carmen.html . Please ask more of me as needed and have fun with your
classic--------gary
.
question: hello gary,
i have recently purchased a beautiful 1938 wishbone ketch that is in
need of hull repair and minor topside t.l.c. the latter i will probably
be fine with , however, the hull is what i am inquiring about. the boat
was buily by Nordbjerg in copenhagen in '38. she is built on very solid
white oak frames, with fir planking, and fastened with galvenized iron
fasteners. i have received alot of ideas from others about her hull
repair, some saying glass the hull or use the hull as a mold for
veneer. most however, think a traditional replanking is surely the best
way to go.
she needs approximately 10 planks replaced near her stern section and a
total refastening all mostly below the waterline. my question(or my 1st
question for now) is what do you think my best coarse of action would
be...?
p.s. she is 50' with an lwl of 40' and 11'6 beam
.
Hi;
Sounds like a great boat. I would certainly go with traditional plank
replacemennt and refastening. The reason a carvel planked boat is built
the way it is is just for this reason, so it can be fixed. I would be
glad to assist you as you proceed on your worthy adventure. If you were
around Rockland Maine I would give you a hand-----------------gary
.
hello again gary, we actually purchased
STORMSVALA from a couple from
rockland namely stacy and larry palmer who were very helpful in all
aspx of
our purchase, being the boats history or renovation advice regarding our
new home.
i have read your forum alot lately and have found your advice to be
extremely beneficial . we have definately decided to go traditional and
are going to go over the
entire hull within the next few days and find out exactly what we've got
ourselves into. the boat is now on stands in camp ellis beach on 8
stands and 1
bowstand(shes chubby....45 tons) i am a builder/remodeler with a desire
to
bring this boat back to its potential while keeping her as original as
possible. my question to you would be what steps would you take to
embark
on this project. do i need to build her a surrounding now or in a month
or
so(i would much rather do as much work to her hull while she is wide
open
than to be confined if i dont have to be.)? i have read pages of info on
plank removal but wondered if you had some good advice on this endeavor,
mainly finding the planks that need to go and analyzing the hull itself
what to look for etc. i have tons of work to do and would like to keep
myself in some order of
disorder and figured you had probably seen this process before and could
give me some direction. thanks for your immediate response and your
interest, and hopefully with some of your knowledge Stormsvala can sail
back into rockland harbor where
she was given up on years ago.
p.s. there is another wishbone ketch of the same design and builder in
rockland out front of sams boatyard(?) this ketch is 40 feet long and i
would like to contact its owner for sail plans etc.
.
Bill&Kristen;
Small world, so where is camp ellis beach? Well, as you have planned,
the first thing is to make a good structural survey of the hull and
determine what needs replacing and fixing and determine a sensible
sequence of accomplishing what can be done in the time alotted with the
money available. The biggest mistake usually made is to take on too
much all at once where fixing the most urgent and spreading the rest
over time is more realistic. Boatyards are full of old woodies torn all
apart and abandoned when time and or money ran out. I would not cover
up the boat until absolutely necessary and get as much outside work
done as possible. My first structural concern would be the frames for
there is no sense in redoing planks if there is nothing to fasten them
to. Planks usually only have to be replaced if they suffer from rot,
caused by iron fastening rot , electrolysis rot or good old fresh water
rot, or if they have been damaged. Refastening is no big deal but you
have to make sure the planks are sitting tight to the ribs for if the
are not you have to pull all the caulking including the cotton or
oakum. In most cases when the planks have been fastened with steel or
iron , getting them off in one piece is difficult, usually best to just
split them out. So, get out the sounding hammer and ice pick and see
what's what and let me know. Feel free to call as well as email. Also I
don't know the ketch or boatyard you are referring to in Rockland, can
you be a bit more descriptive about its location and I'll see if I can
track down the owner---------gary.
When building a boat of Carvel planking, must you
leave a space between planks to insert the packing material?
Or:
Do you mate the planks tight against each other and pack just
where ever you see spaces?
Someone told me to angle the planks edge so you can wedge fit
the packing...???? TY.
.
Ty;
You need to get the book called Boatbuilding by Howard Chapelle which gives a detailed overview of all types of wooden boat construction. But to answer your specific question about carvel planking, it is true that the seams between the planks must have a cotton or oakum filling in order to keep the hull both flexible and watertight. The open seams must be beveled to the inside > so the material can be tapped in without driving it through to the inside of the boat. Caulking the seam takes some experience for you want to place the cotton or oakum in the middle of the seam because the seams water tightness is dependent on the wood in the seam swelling around the material and forming a gasket. The true advantage of a carvel planked boat over some easier forms of wood construction is its simplicity in being repaired. Hope this helps---------gary
question: We have a 1961 Cheoy Lee-built carvel planked yawl. The
planks are 7/8" end-grained teak. No short planks, original bronze
nails/copper rivets, 1.5" x 1.5" oak ribs. The teak hull is oiled. The
original +40 year old oakum and cotton caulking is still intact and
apparently functional in most of the plank seams, but in places has
worked its way out, has been removed or has rotted out (due to the
sealant cracking out). For the past several years the boat was moored
(in salt and fresh water) in a relatively humid climate (Seattle). A
year ago we purchased the boat and moved it to Lake Coeur d'Alene, in
north Idaho where the summers are hot and dry (85-95 degrees and ~10%
humidity versus 60-80% in Seattle)and the winters are cold and wet (avg
winter temperature is around 32 degrees). After we moved it we have
noted a significant amount of shrinkage and associated leak development
along numerous seams (this most most noticeable after somebody hit our
boat moored in its!
slip)which loosened much of the already failing brittle sealing
compound (no obvious frame damage thankfully) I have removed most of
the old sealant (chalk and linseed oil and occasional strip of
silkaflex or similar goo) and am going to recaulk with oakum and cotton
all the open seams ( a first time caulker). However, there are a number
of areas where the sealant had failed and allowed rot to develop along
the seams and at the butt-end of the planks, with some gaps as large as
1/2 inch. In several cases the rotted areas are up against oak blocks
riveted on the inside of the planking. Several of the blocks are
essentially butt joint support blocks and I assume where original based
on the riveting, age and placement. It is obvious some rot has worked
its way into the blocks. What is the best approach if the bulk of the
block is intact? Should I inject epoxy into the back of the butt joint
and into the block after removing the rot as best I can? Then finish
the exterior par!
t of the plank butt joint with traditional caulking methods, epoxy or a
synthetic? The same holds true for an area on the transom where there
is 1-2" of rot damage to the underside of the 4" x 6" oak keelson
adjacent to the sternpost where it comes in contact with the transom
planking. I will be scarfing or replacing the keelson once I get the
old bolts out. However, where this damage occurred there are numerous
gaps in the planks here in the order of 1/2" to 1" over lengths as long
as 18"-20." Most all are now filled with a chalky-type but weakly
flexible caulking compound topped with a harder epoxy type material or
paint that is brittle, fractured and will be dug out. For these large
wide gaps is oakum a suitable fix or should they be epoxied or should I
use another type of sealant? Pretty much every seam in the transom will
need to be filled (one can see daylight through most all of them).
Removing/replacing the planking is out since they are long planks and
would requi!
re a serious amount of refastening and outside of the open seams they
are in good sound shape.
Finally, considering we have extreme changes in temperature and
humidity what is your suggestion as to the longest lived seam compound
or mix for finshing the oakum/cotton caulked seams. We use a quality
teak oil mixed with a little tung oil for the oil finish with little or
no solvents in the oils.
Chris & Kathy
.
Hi;
Wow, quite a project but a great boat and
from what you describe well built with the right materials.
Unfortunately you have her in about the worst possible environment, as
you are aware the extreme temperature differences and dry air create
the maximum situation for wood expansion and contraction which in a
caravel planked boat is extreme. This requires the use of very flexible
materials in the seams which eliminates any type of epoxy, and the
polysulfide (rubbery) caulkings do not stick well to teak, so that
leaves you with traditional caulking putty ( Interlux makes both a
topside and bottom seam compound). After you caulk your seams with the
oakum or cotton paint the seam with an oil based paint which will
prevent the oils in the caulking from leeching into the wood and drying
out prematurely.
If the Butt blocks (where plank ends come
together) are not too deteriorated epoxy gitrot will suffice but if too
damaged you should replace. Where the seam space to be caulked is over
1/2 inch, I would add a slim beveled < spline as a filler and caulk
it in tight.
Since you are using the boat in fresh
water I would keep rock salt in the bilge and throw salt around the
boat liberally. Salt water prevents rot. Also where there is rot or you
think there could be, spray down with antifreeze, the glycol kills rot.
When the boat is out of the water do
whatever is necessary to keep the wind off the hull, wind dries out the
hull faster then heat. Also keep a high salt concentration of salt
water in the bilges. Good luck and ask all the questions you want.
Sounds like a great place to sail-------------g
.
Gary:
Thanks for the recent advice about re-caulking our carvel planked 1961
Robb 35. Things went well and I was able to recaulk most of the
offending or soon to offend seams (I'm glad this is a once in 20 years
type job, as my fingers and hammer arm will ache for weeks to come). As
an experiment I decided to fill about half the above waterline seams
with Interlux white and the other half with traditional pitch to see
which holds up better in the intense summer heat and extreme cold here
in North Idaho.
However, not all went well as one of the larger seams (~3/8" on the
outside and up to 7/16" on the interior side) directly below the port
gunwale was "hollow" and open along the entire length of the boat and
will require splining to facilitate caulking. I plan on using a small
wedge-type spline, but am uncertain whether to use an epoxy compound or
a synthetic rubber or polysulfide-type cement to seal the spline wedge
to the bottom plank. Since the planks are teak, and definitely oily
(even after 40 years) none will likely stick really well, although the
caulking should help hold it in once pounded in hard and covered with
seam compound. Any suggestions as to the best cementing material
"compatable" with teak oil to cement the spline to the teak?
Thanks again for your advice.
Chris Dail and Kathy O'Neill
.
CHRIS AND KATHY;
Glad the caulking went well. When I have
used splines in seams I haven't ever glued or used polysulfide on the
uncaulked side but rather just caulked the spline in place with cotton
and then seam compound the seam as usual. The swelling of the spline
helps the seam to be watertight, therefore I would use a softer wood
like fir or mahogony for the spline rather than teak.-------------g
.
Thank you for your prompt response. You answered another question I
had about splining the larger gaps, but was afraid to ask. A couple of
more questions if I may... Do you know whether the Interlux white
(above WL) and brown (below WL) seam compounds are compatable with teak
oil? Linseed oil? Can I mix them with an oil-based product to help hold
moisture in and thin them a little to make it easier to get into the
the thinner seams? Is there any shipwright tricks to getting the caulk
into the very narrow seams (like a thinned caulk shot in with a large
shot needle or something)?
I've enclosed a pic so you can see what things look like from a
distance - up close and around the keelson and transom area its not so
pretty right now with all the caulking ripped out. If I get brave I''ll
take a picture of the "naked" stern. The whole affair may have been
caused by a bad case of hot engine cooling water discharge hitting a
bronze mizzen boom support bracket on the lower transom bolted to the
hull with galvanized bolts and in the case of the lower keelson support
bolts adjacent to a low quality steel plate in which the main backstay
support bracket. If only I had got the boat before someone mixed all
those metals with hot water! Visually, the wood damage could clearly be
correlated with the area of metal corrosion. Once damaged, the fungi
had a field day. Thanks again. By the way you have put together a
killer web site - its a real asset.
.
Ken:
Thanks for the picture and the site
compliments. Very pretty boat, but to be honest I think a white hull
would better accentuate the pretty lines. You are correct about the
damaged caused from mixing all those different metals together.
Considering what is done to them, it is amazing as many wooden boats
survive as do. You can thin down the putty with any oil product
including paint.----Below is my response to anothers question on
caulking. It should be useful to you as well-----------g
-----------------I assume by removing the
caulk you are just referring to the seam putty and not the cotton. Do
not use polysulfide or epoxy to fill the seams rather use a seam
compound, interlux and zspar make it, which is deigned for that
purpose. Clean the seams real well than paint them with an oil based
paint or bottom paint. The paint keeps the solvents from leeching out
of the compound into the wood. That way it lasts along time and doesn't
dry out. There is a white seam compound for the topsides and a brown
for the bottom. Tape both sides of your seam before putting in the
putty, put it in, smooth it and pull the tape like this > back
against itself. Use the blue tape. Taping is a pain in the butt, but it
makes the job a lot easier in the long run. Here's a trick, if you have
a lot of seams to do use a caulking gun. Get empty tubes, mix the
compound with a little paint to get the right consistency, white for
the topside, bottom paint for the bottom. Push the mixed compound into
the caulking tube and hold a high speed finishing sander to the side of
the tube. This vibrates the goo to the bottom and eliminates air
pockets which are a real drag.----------------g
.
question: Hi Gary:
I have a Herreshoff S class sailboat, ca 1920. It has a member called a
bent keel, about 1.5"thick, running (more or less) stem to stern. Below
it is dead wood, above it the garboard which is rabbeted into it.
Inside the frames sit on it and are bolted through it. Here is the
problem: in spots, both inboard and outboard, lower and upper edges of
the rabbet are showing wear and chipping away, effectively reducing the
surface area that the garboard has to fasten into and make a seal with.
Replacing the entire bent keel to rejuvenate a few leaky parts of the
rabbet is not what I have time or money for. What if I were to pull the
garboard, rout into the edge of the bent keel until I got to clean
wood, then dutch in sections of fresh wood? Then screw/epoxy the new
piece to the existing bent keel, when cured pull the screws, fill the
holes, and then finally reattach the garboard. Is this crazy?
Thanks for your time,
Alan
.
Alan:
Nice boat and good solution to your
problem. Go for it.----------gary
.
Thanks for the quick response. Can't wait to get home
and read all the other letters and responses! You
are a great resource. Alan
.
question: In your opinion, which is the best method to tighten
constantly leaking garboards on a lead keeled sailing vessel of 30
feet, keel stepped mast. I imagine new floors will help but have you
discovered the best way of tying the structure together without
resorting to dropping the ballast keel.
John Lilley UK
.
John;
Dropping the keel serves no purpose. The problem obviously can be connected to old caulking, old failing fastenings, rigging too tight i.e.. too much compression on the mast step from too tight rigging or a combination thereof. Fixing these problems will no doubt help, but if the boat has a lot of age chances are the garboard under stress will leak somewhat. Often out of frustration I have tacked on a well bedded lead strip on the seam area of the stressed garboad, usually a couple of feet. The lead provides enough give to absorb the garboard flexing and at the same time keep the water out. If you are into it, the ultimate fix is to pull the garboards, replace or sister the floors, plug the old screw holes in the keelson, install a larger mast step to spread the load, and put on new garboards and new caulking. An interesting alternative I have seen is to install what is called a diaper, amounting to a steel plate under the mast step and attached to two cables, one on port the other on starboard, with turnbuckles. The cables are attached to the upper rigging chain plates and by tightening the turnbuckles you transfer the compression stress from the mast step to the hull. The lead is a whole lot simpler. The first thing to try is loosen the rigging a bit and see if that helps, often on these older wood boats the rigging is kept too tight exacerbating the stress on the garboard. Good luck----------gary
.
Hi Mastmate
thanks for your swift reply.
The reason I mentioned dropping the keel was to enable new floors of
higher
rise up the bilges to be fitted to try and connect the garboard and next
couple of planks above to be tied tighter to the keelson, but could not
think of a way of fastening new floors to the keelson without through
bolting. I don't know if s/s coachscrews would be good enough just
screwed
into the keelson as I have never tried it...so far.... The tensioned
cable
sounds like a less drastic measure though. I like what I have read so
far1
Thanks for the reply, I am a surveyor in UK working with grp &
timber and
always trying to expand knowledge. There is only one way of doing
that.....by talking and listening. Keep up the good work.
Regards John Lilley
John Lilley
John Lilley & Associates Marine Surveyors
.
John:
In my experience floor timbers are usually drift bolted into the keelson. A drift is actually just a metal rod, steel or preferably silicon bronze, that is driven through a drilled hole 1/32 smaller than the rod , once driven home the end is cut proud and peened over a washer. Very effective. I think all of us who work with wooden boats do so in part because there is always something new to learn.------------gary
.
question: Hi Gary,
I need to deplank an old Chris-Craft. A couple of basic questions;
How do you remove the wood plugs over the screws in the planks?
What is the best way to back out the screws under the wood plugs with out stripping the heads?
Thanks.
.
Carefully , in both cases. Unfortunately, no magic tool. I use a thin ice pick to split out the plugs, not worrying too much about the hole edges for the new screws will be a size larger. With the screws, clean the slot thoroughly, tap once with a hammer, tighten screw a little , then reverse it out. I can't think of many reasons to de-plank a boat, are you sure it is necessary?------g
.
Gary,
I have your website on my favorites and look at it from time to time. I have an old lightning sailboat (1940) and I am refastening the bottom. I went to Jamestown Destributors in Rhode Island and asked for some advice. I am not sure if it wil work. I was sold a System Three clear coat product (2part) and was told to clear coat the bottome as I refastened. I did that and spred the clear coat onto the cedar planks. When I was done, I looked at it and thought that it may have been either not the right thing or that I put it on too thick. It has a nice sheen. I was told that the wood will swell nicely and will behave like th original (mostly). I wanted to put seam compound in th eseems but this boat doesn't really need it.
Advice?---Pete
.
Pete:
I have an old woody lightning as well, see pic. I don't think what you did is really harmfull but I have seen no purpose in covering wood with a non breathing impervious layer of anything. It is possible in swelling that having one side of a plank more open to swelling than its opposite might cause some cupping but just keep an eye out and if you notice this happening grind off the coating. Try to only take advice from those who make a living keeping the old woodies floating and always remember the best you can do to maintain a wooden boat is to use the same materials and methods that were employed to build it-------gary
.
nice Boat, What year/number? I asked advice from a couple people from the maritime museum in Sayville, Long Island. I even had a shipwright come and look at it and got the OK. It never felt right painting on the clearcoat. I was worrying moor about rthe rusted screws that I was replacing. (I think the originals were steel). If I blow it, I will have to put a whole new bottom on the boat and I don't know if that would be worth it. The boat was garaged for over 20 years. It is bone dry and in good condition for this low a nimber.(low 500's). I even went to maine this summer on vacation and stopped in to ask a question at the wooden boat magazine shop. I guess it just has to be seen to give advice.
Refastening the Hull: the original is to have one screw per plank at each rib. I couldn't get the old ones out without really damaging them. I rescrewed next to each one with Bonze screws (#8) and now have to replace a few ribs. I also have to redo the planks next to the keel board. 4 in all (2 on each side).
Next project is the mast. I think it may be weak in th "T" as the previous owner drilled a whole thought he mast to secure the metal bar.
Thanks for the help,-----Pete
.
Pete;
You've got plenty of advice but it is your boat and your decision what to do. One thing I would suggest is if the boat hasn't seen the water in 20 years, do the minimum needed and get it in the water and sail it for a while so it can swell and get its shape back, then do any major repairs. What I have done with some in rough shape is to cover the planked bottom with 3/8 marine ply and a layer of fiberglass, which really stiffened up the boat and stopped the leaks. Also the hole in the mast for the spreader bar is standard. The lightning association website is good for info as well---http://www.lightningclass.org/index.htm------gary
.
hi mastmate,
im going with the marine ply over the keel method you sugested iasked the shop if the ply needed treating for full immersion in salt water,they wern't to sure so im turning to you mastmate. they did tell me the ply bonding resin was good resin,my options at the moment are a west system resin coat with primer & antifoul or just primer&antifoul is this enough?
thanx-------yonk
.
Yonk;
Good choice, not museum quality restoration, but sensible. After cutting the ply to shape, I would paint both sides with penetrating epoxy, let dry, than install the ply bedding it in some Thompsons roof tar, keeping the tar back from the edges so it doesn't interfere with the fiberglass.This bedding prevents voids where condensation can develop and rot the original bottom. I would then fill all the seams and edges with bondo, epoxy auto body filler, sand that fair and then use 6in fiberglass tape with polyurethane or epoxy resin on all joints and seams and finally a layer of glass cloth over the whole bottom overlapping at least 6 inches into the topsides . You can use polyurethan resin over epoxy but not visa versa, the choice is a dollar cents one. This will give you a trouble free bottom.You could probably get away with not doing the last step of covering the whole bottom with glass but I think down the line you would be sorry you didn't--------gary
.
question: Hello Gary
Great! site you have.
Thank you for being here.
My name is craig and I have a question regarding a 1963 plywood hull chris craft boat. I need to replace some of the plywood on both stern sides. Fortunatley up to the point of an existing joint.(only about 2feet from the transum forward. Can I carefully cut out the old lapjoint and make a new piece to fit in onto the the existing piece. I meanto say can I leave the existing seal/lapjoint half and add my new half lap joint piece to complete the repair and if so how do I keep it tight while it sets. The original lap joint has no seam cover other than cosmetic to hide the actual 1/4 inch seam.
I hope I have explained it ok .Thank you kindly sir.
ps I am from Victoria BC Canda Cheerio!.
.
Hi;
I think I got ya but let's see. Usually with a plywood butt joint there is a plywood backing piece which overlaps the joint by 6in to 12in on both sides of the joint. From what you say, you need to replace the shorter of the outer pieces leaving the backing piece in place. I loose you with the question of how to hold the piece in place for usually the two pieces forming the butt are either screwed or bolted to the backing piece with bedding compound sandwiched in between. Are we on the same page?---gary
.
question: hello Gary
There is a heated debate going on in our yard as to wether or not a clinker(clencher) built boat is ever caulked , my view is that onlly the garboard seam is caulked .Sandpiper continues her steady progress as does my Morecombe bay prawner
1889 but i must confess to now owning a plastic gin palace a 25ft Invader great fun to use while pondering the next part of the restoration.my prawner has a massive wooden mast pine? what is the best way to check the integrety of the wood mast
Best Wishes David C
.
David C
You are right most of the time. Occasionally you will come across a clinker with a bit cotton string sandwiched in the lap and once in a while , if you look closely, you will notice a line of raised grain in the middle of the lap on one plank. This is done by making a slight indent in one of the planks before installing and when wet this reverses and becomes a small bulge which acts as a gasket against the adjacent plank, very effective. As far as the integrity of your mast, sounding it out with a wood mallet or screw driver handle is the best way, sharp sound ,good, dull thud, problem. Have fun with your boats-----gary
.
question: Hi Gary
Great website! We are working on a 30ft 1933 Hillyard, Pitch Pine on Oak, Cutter rig, Iron Keel. Taking the kids on little trips around the coast of the UK.
At the moment I have the boat in the shed as all the keel bolts had rotted away- I've fitted new ones ok but now have had to adress the garboards which have been over -caulked a bit over the years- leaking and open. I have routed a 3/8ths slot and (balcotan) glued a spline to the first plank above the garboard & re-caulked with cotton between the Garboard & this splined plank. Hope you think this is OK.
My worry is that the boat has obviously stretched a bit in this area for the garboard seams to have been so open- what should I do to harden her up again? Can I simply screw in some new screws from the outside, through the garboard & into the sawn frames? Would boat nails do the job? Do I need to remove the old fastenings first? Should any of it be bolted? The planks are fastened to the intermediate steamed timbers with copper rivets- can these be hardened up or do they need replacing? Do I need to re-fix the garboard to the keelson too? With more screws?
Sorry to ask so many questions at once!
Thanks! Matt
.
Matt;
Sounds like you're having fun. The best fix is to pull the garboards, peg all the screw holes, add some additional floor timbers and install new garboards. Short of that, pull what old fastenings you can and go with a size larger screw, sister fastenings where you can't pull them, along the keelson as well, recaulk and over the length of the seam add a copper or lead strip bedded in tar and fastened with copper or bronze nails. Also keep the rigging on the loose side so as not to exacerbate the problem. Your glueing in a spline is an acceptable practice. Enjoy your sail and get a copy of the book "The Boat that Wouldn't Float" by Farley Mowett to read to the kids during the voyage.-------- ask more as needed---g
.
Hi Gary,
Re: Planking Timber
The replanking has now started on my boat. I was suprised to see the boatyard had fitted larch planking that contained knots.. Images attached... Basically wherever there is a grey blob there is a knot. Most are less than 1/2 inch but the biggest are about an inch in diameter. As you can see the knots appear to have been treated with whatever the grey stuff is? Before discussing this with the boatyard I wanted to get an independent opinion as to whether using planking with knots is normal practice or sub-standard? Obviously if it is sub-standard it raises serious questions over the yard's competency.
I would be grateful if you could let me know your thoughts on this.
Many thanks
Tom
.
Tom;
Not usually a problem with small knots in larch especially if the planks are quarter sawn. Being used on the topsides gives you the advantage of keeping an eye on them and if they split you can drill them out and plug the hole. Grey stuff maybe an epoxy to seal the surface. Ideally the straighter the grain the better but with the shortage of old growth timber often one must make due. Nice boat, oldie but goodie---gary
.
Thanks Gary that's put my mind at ease.. frightening stuff this boat restoration.
Thanks for the comment... She's an old'un alright, built in 1944 for the British Admiralty... She'll look grand when she's been fully restored with new wheelhouse/ aft cabin and new decks etc.. Going to be a good while yet though... tons of work to do!!
No doubt I'll have another question at some point in the near future..
Really appreciate the advice..
Kind regards
Tom
.
Tom;
No problem, ask away as needed. She has beautiful lines and I salute you for taking on her restoration, an act of love demanding patience and perseverance--------g
.
It's been a while I hope you are doing well. Last time I talked with you
maybe a year ago I was reworking the front deck on my 1936 Monterey. That
project eventually turned to pulling off the house and doing a lot of
rethinking what I want out of this boat. I decided I need to address the
structural aspects of the hull so I pulled the boat out onto a trailer and
have it in my yard. On the way home the planking pulled out along the
stern post on one side from the sheer down to where the prop shaft comes
through the keel ( about six feet). On inspection I found that only about
six or eight nails had been left holding this run together so refastening
the hull is high on my list of things to do. The original fasteners were
iron nails. It appears that the hull was refastened once with nails again
and for the most part everything is still holding together well. With the
exception of the ends that pulled out the planking is in very good shape.
There are some frames that need attention mainly in the mid to stern
section where a fish hold had been glassed in and rain water was trapped
underneath. All the sawn frames sound solid. The top section of the stern
post had quite a bit of bad rot that I have cut out, the piece needs to be
rebuilt but that seems to be fairly straight forward. Finally all the half
ribs that support the bulwarks need to be replaced due to rot above the
deck.
The fist thing I want to do is to reattach the planking to the stern
post. I need to repair the ends of the planks which I think I can do by
drilling the old holes out, plugging them and drilling for the new
screws. There are a couple of planks that have splits and slots where
the nails pulled through the wood. All of this damage is in the last
three inches or so right where you need them to be solid enough to hold.
On another boat in a yard once I saw where someone had spliced new ends
on a few planks using about a four to one splice. I would prefer to do
just about anything other than cut the planking but what do you think? As
far as the plugs in the old drilled out nail holes is it good to use
cedar plugs with the grain matching the plank more or less and also are
plugs with straight sides alright or should they be tapered? On the stern
post I plan to attach strips to the sides of the rabbit cuts where the
plank ends land so I can move the screws about an inch farther in from
the plank ends. When the stern separated it also pulled about seven
frames away from the keel. The frames had only been toe nailed which was
fine when the nails and the wood were new but that has been a while back
now. My idea is couple the opposing frames across the keel with steel or
stainless steel straps so they can't pull apart, again your thoughts on
this would be appreciated.
If you could give me some specific advice on what screws to refasten with
I can get started. I had figured some kind of stainless wood screw but
don't know for sure. Someone told me I should use galvanized screws since
the more closely matched the nails (for electrolysis). Anyway let me know
what you think.
thanks,
Pau
..
.
question: Hi Gary, I was getting ready to put my 1965 Owens 24 Cruiser in the water (I keep her on a trailer) I opened up the floor plate right at the bow where the V-berth starts and found the plywood had rotted badly. I was able to push a srewdriver right through the hull. After inspecting the bottom I see where the plywood is rotting from just along the keel up toward the waterline. It looks like the rot has overtaken an area of about 1.5 - 2 ft by 2ft toward the bow on both sides. This is an area where when on the trailer water sits when not in the water. I haven't been able to find any other bad spots on the rest of the bottom back toward the stern.
My question is, do i just start by ripping out just the rotted wood and replacing those pieces with a good marine ply? Also after replaceing the bad do I just prime the bottom and then repaint with the Pettit Bronze bottom paint I've always used? What about taping the seams?
I have read so much about West System. Is it a bad idea to put resin over the entire bottom? I always hear that just encourages ROT.
I am a bit confused. I cover the Boat at all times and in the winter she is covered with a waterproof cover and under a boat house on a trailer. Did this ROT start at this low point and just start speading?
I guess I just need some advise before I jump right in. I'd love to replace the entire bottom with new plywood but am not sure I can handle that big a job. Do you replace one piece at a time from back to from or visa versa? What would you do, The reat of this boat is Mint! Totally restored so I want to keep her and pass her down to my daughter.
I would appreciate your advise,
Thanks, Martin
.
Martin;
Rot in wood results from a combination of fresh water, in which the
rot spores live, and a moist warm are that has little air circulation. If
you use your boat strictly in fresh water you should put some salt or salt
water in the bilge before you store it. Salt kills the spores.
There is no need for you to tackle the whole bottom, just mark out the
rotted area, cut it out neatly, then cut a piece several inches larger than
the hole and install it on the inside of the hull by bolting it on the
overlapping edges to the existing hull. Where the wood surfaces overlap use
a good polysulfide caulking (like 5200) between the surfaces. Then take
another piece that fits the cutout as precisely as possible and through bolt
that to the first piece having smeared the surfaces with caulking (see
attachment 1). If a frame is in the way just adapt with using 2 backing
plates as needed or if you can cut between 2 frames do that and add a short
sister frame for fastening the fore and aft sections of the patch (2,3). I
would recommend using a fiberglass tape on the exterior seams of the patch
and then your regular bottom paint.. If the area that needs to be patched
has too much of a curve for the plywood to lay flat, use thinner pieces of
plywood laminated together with 5200 caulk.
West system or any other penetrating epoxy is no cure-all for preventing
rot. The best is good air circulation and a bit of salt. Ask more as
needed---------gary
.
.
.
question: I have a 1956 Chris Craft 14 ft Barakuda kit boat that needs a new bottom, the brochure shows that it has a 1/4" thick mahogany plywood bottom. I have never done this before but do have limited experience in woodworking. I am not sure how you can plug a 1/4" thick material and have a screw that holds something. Are you familiar with the kit boats.
.
Yes, the first boat I built was a Luger kit 14" runabout. You just countersink the screw ever so slightly and putty over it with some epoxy putty. The minimum thickness for using a wood plug, bung, is 1/2 inch. --------have fun------gary
.
question: Hi Gary;
I am replacing anchor rollers which were mounted directly on the
bowsprit of my sailboat.
The were mounted on a bronze shaft which I have replaced with stainless
steel. The shaft slides in across the width of the bowsprit which is
appox.14 inches. There appears to once have been plugs made of teak for
each side of the bowsprit. These plugs should be about 3/8" thick by
appox. 1&7/8 diameter.
Where could I obtain such plugs and should they be epoxied in and the
varnished over. I have checked various sources in my area and have not
been able to locate anyone who is able to make these up.
Thanks,
Mike;
You will not find such plugs on the market, especially out of teak. You
have to make them. Either use a two inch hole saw, sand it down to the
right diameter and fill the center guide hole with glue and sawdust or
the better way is get a stock of teak 2 inch square and shape a tapered
plug with a plane doing a hexagon and then octagon and finally the
circle to the right dimensions. Get a piece of Teak long enough to make
it easy to hold with one hand and plane with the other. It is easier
than it sounds. Since one uses plugs so at a later date they can be
split out to gain access to the bolt, it is best not to epoxy them in,
but rather use a wood glue such as Tightbond. The nice thing about a
tapered plug that results from planing versus the holesaw plug is that
you can drive it in tight. Good luck-------gary.
~~~~~~~~~~~~~~~~~~~~~~
.
Hi Gary,
Long time no talk.I am about to put the finished railing on my fishing
boat.
I am using mahogany, 2x6 .There are quite a few turns in my railing, that is curves,
So, it is going to be 4 or 5 pieces.What type of joint should I use and
how should I make it, line it up and that kind of thing to join the
pieces together?I hope I am making sense.
thanks,
kevin rea
.
Kevin:
Nice to hear from you again. I couldn't get your page to come up but if
you are working on the railing you must be getting close to completion.
Congratulations. The best joint for a flat rail is a Z joint. Using a
2x6 the joint should be 12 inches long coming in about an inch at
either end. I would make a template of the Z out of a thin piece of ply
and merely mark the ends of the 2 boards that are to be joined. You
have a choice whether to glue them together with an epoxy glue or use a
flexible non glue polysulfide in the joint. I prefer the latter because
it allows for the easy replacement of a damaged section and it allows
for a less then perfect joint. If you use the polysulfide I would V the
top of the joint so you get a nice clean caulking line. Preferably you
bolt the joint together at the narrow ends, countersinking and plugging
the bolt ends. You can use screws but it won't be as strong. If you are
going to shape the 2X6's to the curvature of the boat, roughly estimate
how much will be trimmed off and adjust the depth of the ends of the Z
joint accordingly i.e. you may need to come in 2 inches instead of one.
Then put the whole thing together and use nice long battens to lay out
your long curves and cut it in place. Hope this makes sense, if not
email me back.---------gary
.
Hi Again Gary,
I was wondering about a couple of things when I put on my finished
railing.
It will be of phillipine mahongany, 2x6.Should I use silicon bronze
screws or stainless?
I have been using silicon bronze on everything.Should I use a
polysulfide caulking(glue type stuff) in addition to screws?How often
on a straight part of the railing should I put screws.
I was thinking of using probably a 14x 3 1/2 silicon bronze wood screw.
Also, I am going to cover each side of the bulwarks with plywood.
I am then going to fiberglass over the whole assembly, over the top
before I put on the final railing and down both sides and onto the
deck. I am a bit worried about dry rot in the long run.
I was thinking that after I put on one side of plywood, that I would
spray all the inside bulwarks and stuff with antifreeze.
What do you think of that?
I got the idea from: http://boatbuilding.com/content/rot.html
thanks again !!
Kevin Rea
.
Kevin:
Use either bronze or stainless fasteners since you don't have to
concern yourself with electrolysis, 14 X 31/2 is fine about every 16
inches. Since the rail cap may have to be repaired sometime in the
future, just seat it in a regular bedding compound, interlux makes one
or you can use plastic roof patch cement like Henry's. You don't want
to use a glue type substance. Coating the enclosed structure with
antifreeze is a good safeguard, but the best rot preventative is
keeping the fresh water out.--------gary
~~~~~~~~~~~~~~~~~~
.
Hello there, I have been offered a 1964 32" Grenfell power boat for $10,000. The only snag is that it requires a total re fastening. otherwise the boat is in really nice condition.
My question is, is it required to remove all the old bronze fasteners or can i re drill and screw beside them, i was thinking of using stainless screws.
Best regards ---John W --- B.C. Can.
.
John;
What I would want to know first is why does it need refastening? Bronze fastening last a long time unless exposed to electrolysis. It is best to remove the old fastenings and redrill for a slightly larger one, but going along side is OK although one should not mix bronze and stainless for this sets up electrolysis especially in salt water.------gary
.
Hi Gary. thanks for the very quick response. Although i have not seen the survey the seller tells me that indeed the problem is electrolysis & yes the boat lives on the Pacific. Sechelt is on a Peninsula 35 miles N.W. of Vancouver, B.C.
I am beginning to get the feeling that this is a huge job, although i am a time served Joiner and have the skills I'm not sure I have the guts to get into this size of project or even if it worth while althought the Grenfell boats ( built in vancouver ) are well thought of and are nice looking.
Thank again, --John.
.
John:
That maybe a good decision, a boat that has been exposed to electrolytic problems may have hidden issues, so a rather simple task could turn into a massive one.------gary
.
question: Hi Gary - thanks for taking the time to answer everyone's questions....I am house carpenter tackling my first major boat project. I have a beetle cat - cedar on oak, and I am replace almost 10 or so frames that have either cracked or have just rotted. I have removed my first frame by first removing bungs or epoxy, backed out the screws (they all came out)and removed frame. To fasten the new frame, should I use the same holes, with slightly bigger screws? then rebung....or as someone suggested, rebung first, then drill new holes, refasten, then bung again..? the original holes in the planks are pretty clean, and it seems that if I were to fill the existing holes then redrill, that it would weaking the plank - it is also a lot more work...but I want to do it right, once! thanks for your time....hope to hear from you soon...
cheers - ryan
.
Ryan;
Nice boat. Follow your gut---always best to redrill old hole , upsize the fastening and rebung.------gary
.
gary,
; I have one more question for you, I am refastening some of the frames
and I needed to figure out is the best way to set the wood plugs, what
adhesive should I use ect... Hopefully you can help,
Thank You,
Joe
.
Joe:
Get a 2 part epoxy glue that you mix yourself. Right before you put the
plug in dip the tapered end into the glue, that way you don't get the
glue all over---------------g
.
question: gary,
hello, It is me again with the Vertue 25 I am very close to putting the
boat back into the water, The only things left is to fasten the new
laminated frames and to thru bolt the existing ones. My question lies
there. Is there any good resourses for info on fasten procedures,
things to watch out for troubleshooting , ect.... It seems relatively
easy but there are issues such as, what to coat the screw with when
setting it, should I use a washer/fitting on the inside to recieve the
screw with. ect...
Any info would be appriciated. Also I am going to pay the seams below
water with sikaflex. It is what was used previously, to fill strtched
seams from the hual out. I would rather use redlead but I can't find
it, maybe you can point me in the right direction.
Joe
.
Joe:
When you are using screws, get a tapered bit the right size with the
countersink and plug cutter attached, available at a good hardware or
woodworking store. I usually dip the end of the screw or bolt in some
bedding compound {Dolfonite] before inserting, this works to seal the
threads as well as lubricating the screw, especially necessary when
screwing into a hardwood like oak. Same with a bolt. Sikaflex is a no
no especially underwater, it interferes with the wood swelling and is a
bitch to remove, should you have to. Remember, everything on a wooden
boat is made to be fixed or repaired and most high tech sealers and
adhesives are contrary to this. Interlux makes a good underwater seam
compound. If it is too thick, mix in a little bottom paint and get the
right consistency.If you have a lot of seams, get some caulking tubes
and fill them with the seam compound using a vibrating sander on the
side of the tube as you fill it, this gets rid of the air bubbles. Have
fun, your getting close to sailing, lucky you-----------g
.
question: gary,
Thanks for the help with the fastening , I shoot about 300 screws last
night. My new question arises from the fact that I ran out of screws
and I am have trouble finding bronze screws, I live in SF and I have
been try places around here, and they only have silicon bronze. The
first question is bronze and silicon bronze the same in this respect,
or is one better then the other when fastening older wooden boats.
Also, is there a place that you can reccomend. I am assume that there
is a difference, generally becuase the price is signifigantly diffrent
between, the ones I started with and the silicon bronze and
enlightenment on the situation would be appriciated.
Thank You
Joe
.
Joe;
Silicon bronze is the way to go, much stronger. As to where to get
them, your in luck, I spent the last 20 yrs working on wooden boats in
the china basin area of SF. There are two places I use to go, RJ lahey,
I believe on 9h off of Harrison and Fasco fasteners in Alameda. Also if
you have a bit of time the cheapest through the mail is jamestown
distributors at Jamestown Distributors Boatbuilding and Woodworking
Supplies for the----------------where are you hauled out?------g
.
question: hello, I have worked on boats for a
number of years now on the canadian east coast. But I have a 1970
mahogany f32 on the great lakes. My plan is to sail her to the east
coast, I'm converting the engines to closed cooling. But I belive that
I'm going to have no choice but to refasten with bronze like most boats
here. So my problem is that a lot of the original fastenings want to
stay where they are. So I'm thinking that maybe I'll put a broze srcew
next to the one that don't want to come out. The electrolicis (not a
good speller)should eat the galvanized fastenings leaving the bronze.
Now do you think that this will also lead to the wood deteriating
around the fastenings or lead to problems? I'm starting to think that
it may. the boat will only be in salt water for less than 4 months a
year, do you think that I can get away with keeping the galvaized and
replace as needed? I want to keep this boat! I have seen old carvel
planked row boats with galvanized clench na!ils built around the 40s
with most of the original nails being well alive. Thankyou for your
time.
.
Hi:
Sounds like a nice boat. To avoid the electrolysis problems between the
original galvanized fasteners and the new ones, I would use stainless
or monel fasteners rather than bronze. If cost is a factor I would go
with galvanized rather than bronze. You want to avoid as much
electrolysis as possible.Good luck and feel free if you have further
questions---------gary
.
question: I have a 1962 Wheeler with double carvel planking. When the boat was lifted out of the water, the straps crushed the planking (not sure if the straps were placed on a frame correctly)... Needless to say, I have holes in my boat on either side. I am going to replank, but my question is - when I do, how much of a gap should I leave in the planking to avoid buckling?
.
If you have a double planked hull and it was crushed where the lifting straps were, you may have much more serious problems than just the planks. There should have been plenty of support in those areas unless there is serious structural damage to the framing supporting the planks. You should have someone with experience look at the hull. To answer your question, normally double planked boats are not caulked but rely on a wood to wood seal when the planks swell.. Depending on the type of wood used and its moisture content, you must leave enough of a gap, maybe about 1/8 in per seam, to allow for swelling. Good luck and I hope your problem is not as great as the situation indicates. Let me know---------gary
.
question: We have a 1950 Stephens powerboat with a Port Orford cedar hull. We want to refasten whatever needs it. How do we tell where the ones are that need replacing? Dumb question? I got the obvious ones that looked wet on the filler, but how can I tell about the rest? We want to get a survey for insurance and dont want to do it twice.
.
Nice boat. I worked on many Stephens in San Francisco, beautiful lines. Usually one pulls out some fastenings at various areas of the bottom and checks their condition, but a boat of that age, if it hasn't been refastened, probably needs it. But considering your situation, it would be best to have the boat surveyed before you do the work so that the surveyor can give you a list of what needs to be done to satisfy the insurers requirements. That way the work you do can be prioritized .Ask as you need help----------gary
.
question: Gary, in re-fastening mahogany bottom planks and therefore plugging the holes, which is better, using mahogany bungs or plugging with a product such as marine tex or something similar? The originial plugs are some kind of putty that's pretty friable after 50 years, but it's not a bung. Thanks
.
Wood plugs are always preferable and actually faster and easier. Use a good plug cutter countersink on your drill. After screwing dip the tip of the plug in a little Tightbound glue and tap it in with the grain in line with the planks grain, this allows you to trim the plug with a sharp chisel with out having to keep checking the grain direction. To keep the plug from breaking into the hole, first hit the plug high with the chisel and see how the grain breaks than chisel it flush from the low side.-------gary
.
question: Hi Gary, I have a 43' 1948 Chesapeake bay built cabin cruiser, my question is I have rust stains above the water line from the fasteners. I had a local repairman look at her, he recommended refastening her, using stainless screws taking into account the galvanic action. Is there a way to remove the old nails wihtout destroying the planking? I'd like to use silcon bronze fasteners, they seem to be the best choice for the long term (dont want to do this again for long time) . I'v read that stainless oxidizes in the abscense of oxygen, i.e. when covered by filler and paint. Any help is appreceiated,......John
.
John;
First, I would make sure she needs refastening. Bleeders don't necessarily mean bad fastenings and if there is no other indication ie. planks springing away from frames or cupping badly, I wouldn't do it. Although in older boats the bottom often has to be refastened do to galvanic action and electrolysis, neither of these conditions exist in the topsides. But if they are bad, you can refasten with either bronze or stainless but you will have to sister fasten to the old ones for you will never get them out. To stop the bleeders, take out the old putty and find a short piece of sailboat rigging wire and put a small piece in your drill so you can polish the head of the nail and then dab some epoxy on the head and reputty the hole. Of course you will have to repeat this process with the new bleeders that will appear yearly------good luck-------gary
.
~~~~~~~~~~~~~~~~~~~~~~
.
.
I am thinking about doing some repairs to
the bottom of my boat.its 20ft.it
is presently on a trailer which is making things difficult.i was
wondering
if they make jacks to lift the boat off the trailer?if they do what is
the
proper name for this equipment.
.
Actually they are called jack stands but they can't be used for taking a boat off a trailer. What I have done is use a couple of sturdy 4x4's across the top of the hull with cribs or horses supporting them at each end and tie a couple of ropes under the hull and to the ends forming a cradle. Then simple jack up the ends of the 4x4's, resupporting them as you go, until the boat is up high enough to remove the trailer. Then put large blocks under the keel, lower the boat to rest on the blocks and then put jack stands around the hull to support it or just use 2x4's with pads on the ends. Be sure all the weight is on the blocks below the keel, the other supports are just to stabilize it. Now you can work on it. Make sure you block it high enough so you have easy access to the bottom. Good luck------gary
.
~~~~~~~~~~~~~~~~~~~~~~~
.
question: The 1" thick mahogony plywood house on my Dyer 29 is delaminating in several places (no rot, jut glue joint failure). How can I reglue the laminations?
Many thanks for any suggestions
.
Roger;
Well, you got a problem with the plywood glue so even if you can fix
the present delamination new areas will erupt as time goes by. You can drill some holes and try to force some epoxy glue into the delam areas and clamp them but the only real long term fix is to bite the bullet and replace the
original plywood.--------gary
.
question: My wife and I are completely rebuilding an old 1968 33' Chris Craft Cavalier. We have done everything from new tanks, cutting down the transom, to all new wiring and paint job - tricking it out for technical diving. Insodoing, we have changed the colour scheme from the original where the first 6" of topsides was red and the rest white separated with a strip of stainless steel. We also replaced the vinyl decking with new Nautolex and sealed it wherever it joins the wood. The stainless strip is gone and I sealed the outside mahogany gunnels (rub rail?) top and bottom with caulking. It has been in dry dock since May (it is now Christmas Eve) and I noticed that the new Easy Epoxy paint just below the rub rails has bubbled in numerous places all around the boat just below the gunnels. So, I ripped off the mahogany and found the wood underneath is soaking wet. Now, .....what to do? I thought about AWLFairing the gaps and replacing the mahogany with an aluminum and vinyl rubrail, ....or should I mill down and replace the mahogany? This is the side strip, not the top strip? I thought for sure I had completely sealed the gunnels with caulking, but it seems the rain from the recent PNW storms have found their way past it anyway. Also, you mentioned in a previous response that the wood will swell once it returns to the ocean in 2 weeks. Will this make any difference it to the problem? BTW, I patched the broken out areas of the topsides with both AWLFair and automotive bondo and sealed it with Z-Spar.
.
Swelling once launched will really just affect the wood below the waterline
and since you had all that rain those rub strips are as swelled as they will
get. I think your problem was that you did not bed the wood in Dolphonite
bedding compound but rather just relied on edge caulking. All wood and
hardware attachments should be bed, seated, in a proper bedding compound.
Try it again using the bedding---Awesome job overall , send some
pics----gary
.
I am a little confused by your answer. I should have used Dolpinite to bed
the Nautolex edges to the wood superstructure and mahogany top plate?
Everything else I used an all-weather saline resistant adhesive caulk that
was recommended to me.
You also missed one of my questions: With 2 large gaps in the very topsides
- one above the plywood (Cavalier) and the other above the solid mahogany
decking where it joins the mahogany toprail - can I fill those with AWLFair,
then put either new milled mahogany or aluminum molding? (See attached images)
If you look at the last image, "SB Decks Prepped.jpg you will see
what I'm dealing with about the gap on top. This is one of the 2 I filled
....but it still leaked under the rub rail. So, do I need to keep these gaps
open or can I seal them up? And if I seal them, how can I stop the water
from getting under the toprail?
.
Kevin;
Great shots, I more clearly see what you're dealing with but I must
admit considering your explanation of how you treated that rubrail I do not
see why it leaked unless the caulking itself was faulty.You did it right.
In the last post I was referring to using a bedding compound under the rail
as it is installed, I was assuming you were installing new ones not just
caulking the original ones and bedding is just used when solid structures
are joined together, structures that may later need repair which gluing
would make difficult. As you implied, it seems water must be getting in at
that gap between the cap rail and the rub rail unless it is getting under
the cap rail at the deck joint and working its way down under the paint. One
of the greatest difficulties in wooden boat restoration is knowing when to
fix and when to replace. When you fix you're dealing with many unknowns
which may undo your fixing but when you replace you have total control over
the installation. In your case, short of redoing both the cap and rub rails,
I would clean out both upper and lower gaps in the plywood and fill them
with a thickened epoxy filler , there is no swelling or shrinkage in plywood
so epoxy is not a problem. I would then recaulk the edges of the rub rail
using 3m 5200 polysulfide. If this doesn't work, I would then add the piece
of molding you suggested, if that doesn't work I'd get drunk and then tear
them both off and start over.-------happy holidays to you--take a day
off------g
Thanks so much for your assistance. I truly appreciate talking to a
veritable guru about this.
.
Question: Thanks for you site.
I have a 26 ft 64 Chris Craft caviler, 002 for that year. She was manufactured in Hayward California. I bought it in 1990, on barrels in a boat yard. I wanted a boat, the wife did not, so the price and my great tool box consideration made it happen.
At first I cleaned to bear plywood, CPES epoxy. The previous owners made some repairs with sekoflex, added a few screws along the Keelson, generally looked ok. bought a trailer, had a couple of great months on the delta, no water, other than the shaft drip two dry summers. Then the fourth year, I noticed water around the shaft log plate. Took it apart, inserted a Fiberglas tube, made a new wedge for the 6 degree angle, and reassembled.
This time, I started taking her out on the San Pablo, San Francisco bays, as you know, this was pretty rough on her. Things started to squeak, leaks from the chimes both port and starboard. Pulled the boards off, a heavy coat of Polysulfide refasten. But I could not launch that year, Work on a major project left it in dry storage for 6 years.
Then the cold weather, and the Engine 'froze' and cracked the block. Even with the Drains open. I replaced engine block, bought new exhaust logs. Back in the water, took it out for a month, put it back on the trailer, another couple of years in storage, (work again).
Then I retired, and this time it was me and the boat. However, port side Exhaust valve was open and water filled the cylinder, and another frozen engine! So, I changed the Exhaust logs to the "riser" type, new Engine, and hatch that would fit the Risers, went through the boat "sistering" the 4/4 floor frames with Honduras Mahogany, refasten and epoxy frames to floors, and started the Galley ceiling over the floors. This time she was ready for a long retirement and fishing.
She has 25 hours of running as of this date, A run to Ductsbry in the Pacific, a couple of 30 mile runs to the delta. After the last trip over 2' swells, I noticed water coming in along the Keelson Port side just in front of the Shaft log plate, with a small hair line crack, about 6" long, a bout ¾" from the edge and water coming in steady, nothing the bilge pump can't handle.
Sorry about the history, I felt you need to know the previous work. And now the questions are 1. Is this the leak that leads to the statement, "she opened at the Seam, and went down"? and 2. Can you help me on either replacing the Keelson plank, or a quick fix suggestion, is in order? I am concerned about replacing the Keelson plank and more holes in the plywood. Is this leak common or fatal? I replace the plank, how far should I go?
CARL
.
CARL;
Quite a history of care, you are a good steward. I am not clear as to
if the leak is occurring along the keelson seam with the plywood or the
keelson has developed a crack. A solution I have used to avoid dismantling
the keelson area is to put a false keelson over the existing one, in between
the floors extending well over the plywood seam and thickly bedded and
screwed both to the keelson and up from the plywood into the false keelson.
One reason for this type of fix is that often the plywood bottom garboard
edge was glued to the keelson and over time that glue gives way and short of
pulling the bottom, one must do what they can from the inside. Hope this
helps .
.
question: I purchased a 31' 1969 Chris Craft Constellation. It has mahogany sides and a plywood bottom. The previous owner struck a submerged tree and tore holes in the plywood bottom, but more importantly, broke the chine in several places. It sat out of water for a couple years and has developed a lot of rotten wood along the side frame-gusset plate-knee-chine-bottom frame. I know it needs to be replaced, but I can't find any information on doing the repair. Help? I build custom furniture for a living, but this is my first boat and I want to make the repairs last and make it seaworthy. (So my wife will join me on my trips and not worry about sinking.) I've stripped the sides down to the frame so I have full access to the side of the boat. I'd love to hear from you and your suggestions. Thanks so much for the website, it has been a real blessing.
.
Ross;
Nice project. Since you are a woodworker by trade you should have no
problem with repairs. The basic principal with wooden boat repair is that if
the repair is cosmetic do pretty much what you want ie. using modern fillers
and epoxy goo but if the repair is structural do it the traditional way ie.
the way in which the boat was built.
Normally you take the bad part apart and put it back with new wood, no trick
really. Not knowing the exact nature and extent of damage I can't say much
more except to recommend that you either find a local boat surveyor or
experienced carpenter to take a look at her and tell you what it is she
specifically needs Ask more as needed--pics help---------gary
.
question: Hullo: I'm beginning a restoration of a Hinkley 36 with pine planks on oak frames . My strategy is to epoxy spline pine strips into the joints and cover with a thin laminate of wood (attached with staples)then a woven roving of glass set in epoxy.The interior of the hull would recieve a coating of epoxy. What do you think? Thanks Greg
.
Greg;;
Putting fiberglass over a carvel planked wood boat is not a restoration method , rather it sets up the perfect conditions for deterioration. A wood boat is made to move, to be flexible, to swell and to be easily repaired. Fiberglass has all the opposite characteristics, so putting them together creates an untenable situation. The only way it works is if you build up the glass layers so much that you create a fiberglass hull over the original wooden one, which then deteriorates from rot caused by fresh water getting trapped between the glass and the wood. If you don't wish to restore the boat using traditional techniques,which would take about the same time and cost as glassing it, I suggest you sell it and get a fiberglass boat-----gary
.
Thank you for your swift reply. Would not the laminate of wood that I mentioned stabilize the planking? My last boat I built was fiberglass,but I like working with wood .I am trying to make the transition.
question: Greetings from the south coast of England ! Allow me to draw of your experience, I have a raft of questions to ask !!
.
Greg;
Gluing strips of wood in the seams doesn't change the nature of the wood nor how it behaves in a water environment especially reacting to the stresses under sail. With wood, a fiberglass coating is only effective over plywood because it does not behave as does solid lumber i.e.. it does not swell and shrink. I think you would get more joy out of repairing a wood boat with the same methods as it was built rather than contributing to its demise by a bad compromise. It's not all that hard, to say nothing of the value of a properly restored Hinkley versus one compromised. Your first step should be to find out how much repair the boat needs by getting an experienced surveyor to do an inspection--------gary
.
I've just rescued a 22ft carvel hulled gaff rigged boat from the chainsaw. Probably orinally built in the 1940s-50s. She has been out of the water for several years subject to the ravages of wind of rain and so is completely dried out. All I've done so far is to scrape off loose and flaking paint below the water line 9 the paint above is still protecting the wood) and applied 2 coats of pink metallic primer and have started to ream out the seams some of which have up to 1/4in gaps. The cast iron keel has been sawn off, leaving 3 bolts for me to deal with. At this point it seems that all the ribs are OK. The planks are secured with copper nails and seem OK except where they join the stem. There are 2 split planks.
I am in the process of replacing the nails at the stem with 1.5in silicon bronze screws but this has resulted in some of the planks splitting. I was thinking of forcing these splits open and injecting epoxy to glue them together. On your site you talk of oiling dried out wood with raw ( not boiled?)linseed oil. Should I be doing this?. If so presumably I need to scrape off the primer?
I intend to replace all steel bolt fixings with silicon bronze. I've tried to knock out the fixings in the stem and knee but there are just not shifting. Can I leave them there and add extra bolts in bronze? Same applies to the keel bolts, the one I've tried seems to have collapsed upon itself... I can get the drift down about 2inches but it now wants to go off at an angle with no apparent movement at the other end. Could I not just get the keel re-drilled and drill new holes for new bolts or is there too much risk of the wood being rotted by the rusted bolts left in ?
It may be possible to get the boat craned into a drying harbour in order to get the hull to take up before caulking but I'm concerned that the pressure of water inside the hull twice a day will cause damage.. any thoughts?
I intend to fit a new deck but how should I treat the dried out wood rubbing strake and cockpit and coach house etc ?
Hope I haven't asked toooo many questions.... but I do wanna get this right .
Many thanks in anticipation
Norman
.
Norman;
Interesting boat and big project. Since the boat was fastened with steel I wouldn't use bronze to refasten, too much electrolysis between bronze and steel, rather go with stainless especially below the waterline, plus it's cheaper. No problem leaving old keel bolts in place, rust rot stays localized. If dreams were possible , the whole boat should sit in a vat of warm linseed oil for a couple of months, short of that get a garden sprayer and thin the linseed waydown with turpentine so it will spray easily and spray away until she will take no more. Best to strip the paint for this linseed bath. You can drill new keel holes in fact you can just drill into the keel 6-8 inches and tap the holes to recieve a threaded stainless bolt--3/4-1inch. This method creates same strength as if the bolt went all the way through.-----ask more as needed----g
.
Hello
I'm considering a wooden 34' sloop with some work already done, but it
needs a whole new cabin, some planking, and cosmetics. Can you tell me
if this sounds like a beginners project or should I wait on a little
better offer, being that boat-woodworking is new to me?thank you
Roy Mantonya
.
Roy:
There is nothing worse for you or the boat than to start a project you
can't finish. Saying that, however, if you have carpentry skills, 4
times the amount of time you think it will take, 5 times the amount of
money you think it will take and dogged perseverence,I say go for it.
When I started working on boats many of the projects were way over my
head but that made the doing of them all that more satisfying. It would
also be helpful if you could find an experienced old timer in your area
who could mentor you. Good luck and feel free to ask as many questions
as you like---------gary
.
question: Hello Gary: I am considering buying a 1938 Alden ketch,
Port Orford cedar over bent
oak. It needs to be refastened after I check all the frames for cracks
etc.
As old as it is, it now has galv. iron fasteners above the water line
(original specs) and bronze below the waterline. I have heard different
opinions about how many times a hull can be refastened (2, or more)and I
am trying to put a plan of attack together. The original planking is
1 3/8" and the bent frames are 2x2". Can I go ahead with a suitably
larger silicon bronze screw; or am I risking splitting the 60 yo frames
and need to consider rivets or bolts? Where are the lines drawn in
renovating
a boat of this vintage? I will not Restore this yacht, but keep it very
original
and use it as a bluewater cruiser. It currently has full ceilings which
I
want to replace with multiple stringers. Thanks! Jerry
.
Jerry;
I have worked on many Aldens' in the past, beautiful lines but fairly
lightly built.
Because of this there are usually broken frames around the turn of the
bilge and most of the work I did was sister framing. As far as
refastening goes, if you can pull the old fastening, put a wood plug in
the hole, then drill and fasten, you can refasten many times but if you
have to go along side the old fastening, 2 times is the limit. If the
planks have pulled away from the frames at all, you will have to reef
the seams before refastening. You might want to have a good survey done
to make sure you are not taking on more than you think. Also, because
the Aldens were built fairly lightly, they were never considered true
blue water cruisers but rather coastal cruisers that could duck into a
harbor if the going got too rough. Good luck and feel free to ask more
questions------gary
.
Hello Gary
Looking to buy a 60"s criscraft 35-40 foot. My question is what is the
best
way to preserv,restore an old wood boat, epoxy encapsulate maybe? Any
books
or articles would be apreciated.
Thanks
Roger Kerkmann
.
Roger:
The best way to restore an older wooden boat is to employ the same
materials and methods that were used to build her. Except on plywood,
epoxy and most other fiberglass materials do not work over wood because
the wood needs to breath and expand and contract. Epoxy resists this
and eventually cracks allowing fresh water to get trapped between it
and the wood which leads to rot. One can use small amounts of fillers
and such on cosmetic areas but any wooden part that is structural and
has damage should be replaced. For the books available on the subject
go to www.woodenboat.com-----also check out
www.boatbuilder.com--------good luck, yours is a noble
endeavor-----------gary
.
I am restoring a 1929 26 foot Colonial Cruiser. She needs a new
keel, and
when I price out the cost of silicon bronze keel bolts I almost faint.
The
old ones I removed are steel and they lasted 70 years. Does stainless
hold
up well? Thanks in advance for any advice.
-
Sincerely, Herk
.
Herk;
I would tend to stay with steel, stainless OK, since that is what the
boat was built with. If the plank fastening are steel, no problem, if
they are bronze you will have some electrolysis occurring which can be
neutralized by sacrificial zincs on any large underwater metal fittings
[metal skeg, rudder fittings, steel shoe on the keel, etc. Either way
you always need a shaft zinc because the shaft is usually steel and the
prop bronze. Hope this helps-------gary
.
question: Great site! I would like to know if there is an opinion
out there as to the pros vs. cons of cold-molding an older (1930)
American-built John G. Alden wooden sailboat with diagonal strips of
1/8" thick cedar stripping - in 2 layers at 90-degrees to each other.
Thanks for any information you may have on this subject.
.
Hi;
Actually a while back, 3 years or so, there was an article in Wooden
Boat magazine about what you ask, in fact I think it was an Alden that
they did it to. I remember that it was proven a viable method but it
was concluded to be no less work or expense than repairing the hull in
the traditional manner. I think you could find the article in the
archives of the magazine at www.woodenboat.com. Also you could get
further opinions both from the magazines forum as well as the forum at
www.boatbuilder.com. I have worked on and sailed many Aldens, they are
great sailors and very beautiful to the eye, well worth preserving no
matter what method you choose. Good luck and feel free to ask questions
as needed------------gary
.
question: hi gary,
this is bill and kristen on stormsvala once again. thanks for you help
about our last questions, however i now have another one to throw at
you. we have just found out that our boat(50' 1938 wishbone ketch) was
built for alexander forbes by frederic fenger who i'm finding was a
pretty well known ship designer back in the early 1900s. we knew that
the boat had some history but have since found that her plans and alot
of the correspondence between the two men are in the archives at the
mystic seaport museum which we are researching. my question is this . i
am removing all the bungs because of alot of fastening rot and need to
replace some planks. i'm wondering if i should do a traditional
replanking with some dutchmans and a refastening or if i should cold
mold the hull or maybe just replank what needs replanking and seal her
up tight. i want to keep her authenticity and value as high as i can
but i didn't know if cold molding would hurt her historical value. i am
in to!
uch with a local boat builder and he said to investigate before i made
any decisions. i figured i would run it by you and then maybe get in
touch with the people at mystic and find out what they had to say.
does cold molding seem like a good way out?
would a traditional replanking be better historically?
i want the boat to be as original as i can but don't want any uneeded
problems down the road that i can deal with right now, while keeping
her value and authenticities intact. thanks again gary, your knowledge
is invaluable to us as we proceed with this exiting restoration.
thanks again bill, kristen and stormsvala.
.
Bill & Kirsten;
Nice to hear from you again. I understand
your quandary, but I don't think you can make an informed decision
without a full structural survey of the boat. You may find for what you
want the boat to do, traditional repairs may be beyond your means or
ability, but from a historic standpoint, traditional is the only way to
go. Also, cold molding the hull has been found to be no cheaper than a
traditional fix, but the skill level needed is lower. Remember at 65
you will have performance limitations as well. Get the survey and let
me know her condition.-------------gary
.
question: hello once again gary, this is bill from camp ellis. if
you remember, i am doing a complete "traditional" restoration on my
wishbone ketch Stormsvala and found your input very helpful last time
and hoped i could pick your brain a little. I have taken off the
garboard and the first three planks to expose the keel, frame to floor
fastenings, and the frame ends. i have found the the bilge has alot of
iron sickness and am going to replace all of the fastenings in the
frame and floors. some of the frames are shot around the frame to floor
and the heels are week on most. my question is can i do a repair on
these weak frame ends past the floor/frame joint and up the frame
itself which is in good shape without having to do an entire steam bent
framing process. wooden boat has its alternative repairs in a recent
issue but the frame is cracked well up from the heel and f/f joint. a
sister would work but i'm hearing that its shoddy to do it that way and
the boat has si!
gnificant historical value. can i laminate the last few feet, sister,
maybe run the frame into the floor timber.anything would help. we
definately appreciate your service. thanks again bill,kristen, and
stormsvala
p.s. the frame heels are "45'd" into the wood keel not on top of it as
the picure in wooden boat.
.
Bill & Kristen:
Sounds like your coming right along. Yes,
I believe your laminating plan is fine as long as you go up the rib a
ways and step the laminations into the good part of the rib so as you
creat a stepped scarf of a foot or so. I think this process is more
fully explained in a printout on the naval architects site
www.macnaughtongroup.com.You can email him.. Also on replacing the sick
fastenings, great if you can get them out, but, if the wood is sound,
you may cause less damage by sistering them. Keep up your do
diligence---------g
.
i had another question. i am wondering, if my frame heel is a bit
shoddy(i.e. there is some vertical cracks and fastening rot) and there
is some cracks or sponge wood around the floor to frame joint would i
be able to do this alternative repair(laminations) from the frame heel
as far up into the hull as needed w/o hurting the integrity of the
frame. keep in mind that the frame heels are 45'd into the keelson so
they took a bit of a beating over the years. this repair, if applicable
would give me better meat for the heel attachment and cure the iron
sickness into the floor to frame joint. i plan on saving as much of the
original frame as i can and also the floors, but i will be taking the
floors out and examining them replacing as needed or laminating as
needed. the floor bolts seem to be o.k. and i may grind off the
bolts(rust)and still use the existing bolt shaft for the new floor fit.
i could go on forever, but i guess my question for now would be the
frame possibilities. i'd rather not sister if avoidable but i need a
strong heel. the frames are 2 1/2 x 2 white oak(do i laminate with the
same?)
i am going to take some pictures tonight and hopefully i can show you
what i am saying or trying to say and it will be a bit less confusing.
thanks again bill
.
Bill & Kristen:
I am not quite sure what you mean by 45'd
into the keelson---Is the keelson notched to receive the frame end or
is the end just beveled flush to the keelson? Yes, white oak and epoxy
would be the laminating choice.--------the pictures you will send will
answer my questions-----g
.
hello gary, this is bill and stormsvala again. sorry if i mess up
this attachment thing but its my first attempt. if these pictures make
it to you you'll see that i have some fastening sickness which has
effected the frames and floors. multiple fastenings have eroded the
frame heels and the floor to frames have seen better days as well. this
is not the case throughout but the majority lies in the heavy bilge
area. some cracks and splits have also occured at the frame to floor
joints. i would like to keep the project as traditional as possible and
am thinking of laminating sisters and a bunch of new floors if i can't
save the ones that are there. what do you think? there is also a
picture of the stem to knee joint which has come apart a bit. the iron
has withered away so i think i may have to refasten that as well. maybe
jack it up and epoxy the faces and re through bolt? well anyway check
it out and let me here some of your thoughts. she is a beautiful boat
and i want her to sail proud again whatever it takes. i have some
pictures of her in her hay day but i'll see if you even get this one
first. thanks again, bill,kristen, and stormsval
we appreciate all your advice.
.
Bill;
Pictures came through just fine. I see
what you mean, some tired wood and spent fastenings. I think your
general plan is still OK as long as your attaching the new wood you
install to good original wood. Remove old and install new fastenings
where possible and sister when removal is impossible. The floors I saw
looked pretty iron sick and should be replaced but how extensive you do
this is a real judgement call. The biggest part of doing a restoration
is finding the compromise between time, money and extent of rebuild.
With the stem timber, it is evident the boat has been out of the water
for quite awhile which has resulted in timber shrinkage and open
joints. When refastening don't bed with epoxy but rather use roofing
tar or other flexible caulking.. When the
boat returns to the water there will be
much swelling of dried out wood so you want to only use flexible
caulking on matching wood surfaces. Send more pics as you
like---------gary
.
hello gary, bill here again thought you may like to see stormsvala in her prime. thanks again for the input. those frames in need of repair, is there any way to do a laminate job on the originals or are they too far gone and in need of sisters. i hear its better to leave the old ones with a ground out laminate repair if applicable but i am wondering if thats even possible on these old things. once again thanks. bill
.
Bill:
Nice photos, I see why you want to treat
her right. Laminating incorporating part of the old frame in the
lamination is fine if you have the room to work in and that section of
the rib has solid wood to glue to. It is a real judgement call what is
"good" wood. If you choose to sister some ribs, it is best to go in
between 2 old ribs with the new one rather than butted up to an old
one---g
.
question: hello gary, this is bill in camp
ellis again. thanks for the quick responses to all my questions, you
are very helpful. the last time we spoke you suggested that i sister in
between the two frames. now do you mean on the opposite side of the
floor with the broken frame or sister directly to the broken frame. if
the latter, do i heel that frame first and then sister to it, or can i
cut off at the break and sister oppposite it. i am getting advice from
all angles and i just want to make sure i don't do any shoddy repair or
hurt the value of the boat by cutting an unnecessary
corner. my floors are not as bad as i thought and i will be able to
save alot of them. in the hard bilge area however i am going to have to
replace about 6 or 7 and i was wondering if i should lag these just
into the wood keel or should i go the extra mile and go into the
ballast keel which would probably make me feel a little better about
its condition(it was re-bolted in 86 or so). i w as planning on
removing two floors at a time, cleaning and red leading the contact
surfaces, replacing the old iron bolts with stainless steel and getting
them into the ballast with pumped in epoxy, then fixing the cracked
frames with a laminate then sistering on new laminates as far up the
hull as possible to insure a strong sister. i will finish by red
leading the entire area before moving on to the next two. does that
sound like a good plan or is there a step or two that would make this
task any easier on me. also is stainless steel good as long as i
replace the entire bilge with them or should i go with something else
$$$$$$$ i think stainless would be the least expensive.
sorry to keep bugging you but the information is very appreciated.
thanks again, bill.
.
Bill:
I like answering questions and your's are
particulaily good. About the sisters, I meant that if instead of or in
combination with laminating to an older frame, you also were going to
add a full sister, it is best to put that sister between 2 old ribs
instead of butted against one of them. I think this is to avoid so many
plank fastenings in one area and also to spread out the supporting rib
structure. Thus these new sisters would fall in bewteen your existing
floors and just be 45'd to the keelson.They would add considerable
strength to areas where you had to cut out and laminate to the old
frame. It's good you can use some of the old floors, although since you
have them out it would be pretty easy to make some new ones if you
could find some white oak. Either way, your idea of lagging them in is
OK although traditionally you would use drift bolts, made-up large
nails with washer pounded into a hole 1/32 undersize. You would make
them out of steel rod, peening a head where the washer would go. Using
stainless is OK but good steel would last another 50 years and might be
a bit more compatable with the old fastenings. If you want to attach
the floors to the keel as well, you can tap threads into the keel going
down just 3 times the diameter of the bolt, one inch bolt, tap in 3
inches. This is said to be as strong as a full length keel bolt, but
mainly helps quell those nightmares of the keel falling off. Red lead
is wonderful. Well, this didn't make your task any easier, but what the
hell, this is fun, Right?-----------------------g
.
question: Hello,
Really enjoy and appreciate your web site. My brother and I are restoring a 1941 17' chris craft barrel back. The boat has new mahogany all the way around. The first question is the white caulking stripes on the deck. Should we use a marine grade caulking or seam compound and at what stage should we run the new stripes, on the bare wood, after stain, after sealing or after applying varnish? Wouldn't the varnish discolor the stripes? Next question is the varnish, we have some man-o-war I believe it is called, but is there a better quality varnish that you like to use? Last but not least is the paint for the bottom. The boat will be trailered mostly, the bottom is fiberglassed and the boat will only run in fresh water, what do you suggest? Does it have to be anti-fouling? Thank you for any help you can give! Lord knows we need it!
Jon McLean
.
Jon;
Great project. The old caulking is a mixture of white lead and linseed oil and there still is a similar product from Interlux called a topside seam compound which would be the traditional way to go. Also there are two part polysulfides available that are a little harder to work with but good as well. Don't use just any marine caulk, make sure it says it can be used for deck seams. If you use the traditional caulk, I would first use a wood sealer on the mahogany and seams, then tape off around the seams and put in the caulk, pull your tape and put on 4 coats of varnish, thinning the first 2 coats. If you go with a polysulfide, do as above but put in caulking before you use the sealer. The reason for this is that the traditional caulk will leach it's oils into unsealed wood and get brittle but the polysulfide needs the bare wood to get good adhesion. I would prefer the traditional caulk because it is easier to use and down the line much easier to remove and put in new.
There are many good varnishes, your main concern being the UV protection rating. Even though you're in fresh water I would use an antifouling paint on the bottom. There is one called micron which is a hard paint and is good for boats that are trailed. Also remember, still fresh water rots wood, so keep a little salt in the bilges and maintain good ventilation throughout the boat. I would also check with other CC owners ----www.chris-craft.org-----------hope this helps and feel free to ask more. Thanks for the compliments on the site-----------have fun -----send picture-----------------gary
.Good Morning Gary, and thank you very much for your reply. My name is Sara and I am Jon's wife. I just read your response, and thought I would send you a few pictures. I've only seen a finished C.C. in books, so this has been an interesting experience so far. It's hard to imagine just how it will look when completed, but it is starting to take shape. We're shooting for a finish date of July 1st. Anyhow, here are the pictures. And I'm sure if we come up with any questions, we'll be asking you.
Thanks again!
Sara.
Sara:
Thanks for the pictures and my compliments for the nice workmanship or womanship. One suggestions, I can see that there is quite a color variation in the mahogany and if you are going to leave it natural, in order to even out the color you will have to use a stain but only after you have used a clear wood sealer. Without the sealer the soft and hard grains absorb the stain differently making it blotchy whereas the sealer makes the absorption more even giving a better finish. Have fun and send more PICs as you progress--------------gary
question: Good Afternoon Gary.
This is Sara from Montana with another question about our '41 CC. I'm
now e-mailing from my brother-in-laws house. This is where we are doing
the restoration. And we've come up with another question. Jon and his
brother have decided to use the Interlux for the top side deck seams.
They understand to use a wood sealer, then the Interlux, but how do we
prevent the seams from discoloration? The varnish that we have seems to
look yellowish. Is there a marine varnish that won't change the color
of the caulking (interlux)?
I lied, I have another question or two. The "boys" are also wondering
what they should use to apply the varnish. Would you suggest brushing
it on, or could they use a pneumatic sprayer? How many total coats of
varnish should there be? How many of those should be thinned? And would
you do any sanding between coats?
This seems like quite a bit to be asking, but you're the best source
we've found (by far) for answering our questions. Hope it's not too
much of a bother.
:) Sara
.
Sara;
No problem, I like sharing my experience.
The varnish should dry clear and eventually over the years you will
varnish over the caulk, but if you are concerned about this first time,
do all your varnishing first then tape both sides of the seams with the
blue tape and caulk it. After you seal the wood I would thin down the
first coat about 10% penetrol or thinner and then full strength for the
next 4 coats. You cannot spray varnish easily because air will mix and
cause bubbles, use a good brush, spend the bucks, that is for varnish.
Use one of the 3m sanding cloths or fine bronze (not steel] wool in
between coats. Wipe down good with tack rags. If the varnish drags on
the brush ie. doesn't flow easily, add a bit of penetrol. You might
check the ChrisC website and see what Varnish is favored but don't go
cheap here. Take your time, this is the part for great patience and by
the way, it is well known in the fine finishing biz, that women are
much better at it than men. Go to it Sara.
.
Gary,
Just one more question on the deck seam compounds for the CC. Have you
heard if anyone has tried to lay a couple coats of varnish, then the
seam compound and after compound dries running new tape lines and
painting the compound white, followed by finished coats of varnish. We
just don't know how to keep them pure white with varnish being applied
over them. Women are better than men at fine finishing biz. Quit
encouraging Sara, her head is already big enough! Thanks again Gary. Jon
.
Jon:
No, I haven't heard of that. I think you
are becoming a little compulsive about your "white" seams. Were you a
breach birth? The varnish dries clear, it will yellow over time and
must be sanded down and redone, making all the seams bright white
again. I think your painting idea, although creative and thought
provoking, won't work, plus if you varnish over white paint it will
turn yellow as well as it ages. You can always do it one way this time
and differently the next. No matter how you do it I am sure it will
look great. Let Sara do the final coat------------g
.
question: Gary,
I have just purchased a 45' Alden cutter, built in 1951. She has
had a good deal of work done to her....dead wood replacd, rudder
replaced, sistered, refastened, new keel bolts, and seams
epoxy-splined. Because of the later, I am going to cold-mold her
professionally with the typical three layers of veneer and two layers
of finishing cloth. Have you ever heard of a case where this method has
not worked or been a source of future problems?
Thanks for your time - Fred
.
Fred:
Lovely boat, Aldens' have the sweetest
lines. A couple of years ago wooden boat magazine ran an article about
an older Alden getting the cold mold treatment. The conclusion was that
it was very satisfactory method of restoration but labor and costs were
about the same as a more traditional restoration. I have heard of
others having no problems years later but I have also seen older cold
molded boats suffering from delamination. So it seems a good way to go
but it is very critical that the job be done right. But remember there
is nothing easier to repair than a carvel planked boat and there is
nothing more hideous to repair than a cold molded one.---------good
luck and I hope you are sailing soon-----------gary
.
question: Hello Gary
I have just purchased a 28 foot Chris Craft Constellation (early
60's) that was abandoned in a boat yard for five years. There is a lot
of restoration to bring it back, but I hope to have it in the water
again the summer after next. One of the areas needing attention is the
rear deck. the original was vinyl over ply but I do not like the look.
Why is Mahogony and Teak the wood of choice with boat builders? I have
access to enough Oak or Maple at a fraction of the cost I have been
quoted for Teak. Can these northern hardwoods be used for decking? I
have also been told that northern mahogony is a soft wood, not the same
as Honduran mahogony like the planking on the hull. Is this true?
regards
Steve.
.
Steve;
Nice boat, a lot of the CC's have survived
do to the sensibility of how they were constucted. Hardwoods such as
oak, maple, cherry, walnut etc. do not hold up well to weather and to
the expansion and contraction they are exposed to on boats . They check
and crack and unfortunately are very susceptible to rot. Teak is the
magic deck wood, not so much for its hardness but for its ability to
resist the weather do to its natural oils plus it provides the best
non-skid surface and can be easily maintained with an occasional salt
water wash down. Also, it is rot resistant. Mahogany, either Honduras
or Philippine( not really Mahogany but in the species family) are
usually not used for decks that get any traffic for they are not very
abrasive resistant and don't look very good oiled and if they are
varnished they are slippery as hell. Fir that has been air dried is ok
but is usually painted out. So, to me it is either spring for the teak
(1/2in x 2in strips over 3/4 maine ply) or glassed over 3/4 marine ply.
Hope this helps--------------gary
.
Gary,
Have read an awful lot of your correspondence with others and would
like to say thank you from do it yourself crowd. I own a 1967 40' Chris
Craft Constellation with a soft top. We have over the last few years
done and had done a lot of work. We have re-powered, re-wired,
re-painted, re-plumbed and re-decked our boat. (new meaning to hole in
the water) Anyway, we are having persistent problem with water coming
in the salon windows, as well as the back aft cabin windows. We have
entirely removed and replaced/repaired the glass and original tracks
that the glass slid in. All to no avail! Have talked to the boats 2nd
owner who acquired her in 1978 from the original owner who was a Chris
dealer. He owned the boat until 1996. He said it was a continual
problem, and has the receipts of the work done over the years. The
gentlemen he sold the boat to (God bless him) loved caulk, and bought
it in five gallon buckets! When we bought the boat we had it 2 months
before we pulled her and started on a 10 month rebuild plan. At that
time we pulled all the nautilex as well as the decking and replaced all
of the bad deck members that were caused by the leaks. We then
re-decked with marine ply and bought rough sawn teak and made our own
new teak decks. The leaks are coming in from the windows through the
ineffective plastic tub slider system that Chris originally installed.
I have done a lot of water testing with a hose to make sure that the
windows are the culprit. At great expense as well as time, we
replaced/repaired this system to original condition. That was when I
met the owner who told me how bad a system it was from the start! We
are getting ready to pull out for the winter and I want to replace the
windows completely. I cannot stand another year of water getting in and
destroying the work that is already been done, not to mention soaking
wet bedding etc.. Any suggestions on windows and or mounting systems.
Have looked at a few on the web, seems like a surface mount makes
better sense. No water to build internal gutters for inside the boat if
you will. We live in Michigan, have talked to all the big Chris Craft
guys around the state, the do not do work on cruiser style bigger
boats. Sorry to be so long, if you need more specifics will be glad to
tell you what little I know. Any suggestions on windows or mounting
styles would be greatly appreciated. Again from us novices, thank you
for sharing you knowledge.
.
Jill;
I appreciate your thanks. Quite a project
you have going; much accomplished already. I wish I had a sure fire
method for fixing those leaky sliding windows but I don't. I have used
metal, plastic and wood tracks and have had little success over time
with any of them. Your conclusion to surface mount them was my solution
as well. It was the only way I could guarantee watertightness. Good
luck and feel free to ask when needed------gary--send some photos if
you have them.-----g .
.
question: I have an old(1960's) clinker-built 21' sailing boat, mahogany on oak , that has been sat on land for seven years , the last year under tight tarps. Now the wood is softening in the bottom planks, because the whole hull had been stripped of paint. Also the seams had all been sikaflexed and the damp got under the sikaflex and has softened the wood. With quite a lot of effort , you can use a screwdiver like an awl and puncture a hole through the planks. Can it be restored or is it too far gone? Can I get a penetraing epoxy such as they seem to use in the USA for this kind if repair? There is no spongy wood anywhere. How do I check the fastenings.(Because if they need replacing I'm looking at major work and i don't think I have the time or inclination to take it on. Hope you can be of help , with thanks , Oli Senior
.
Hello:
Sounds like an interesting boat. It is
very difficult to make any structural judgments about a wooden boat
that has been high and dry for seven years. You can track down rot but
any other analysis can only be done after the boat has been back in the
water for some time so it can swell and tighten up. Then you can test
the fastenings and see the extent of caulking needed. I would get all
the sekaflex out and put in roof patch tar wherever the seams are open.
This will seal the seams and the excess will just squeeze out. Put it
back in the water. After a couple of weeks, mark where it is still
leaking , haul the boat, pull a couple of fastenings and see their
condition. The penetrating epoxy you speak of is only useful for
cosmetic repairs, not for structural integrity. In fixing a wood boat
it is always best to use the same materials and techniques that were
employed in its building. Good luck and I hope she proves to be
sound.-------gary
.
Hello my name is jeff, Just bought a 1954 28.5 wood sloop. Designer
& type are a mystery. she was built by Portland Boat wks (on
title), she Looks identical to a cascade 29, her keel, 2 large windows,
gunnels, cabin layout & top are identical, I know that doesn't give
you much, but if you look at a cascade 29 that is the boat. I talked
with Hans at the cascade yard he simply said it was a copy of the 29.
"Mischief" was built several years prior to any cascade or
Chinook. If you have any info that might help.
Finally here is my questions she's bean on the hard since the early
80's. Dead wood is split in several areas, some loose fasteners towards
rudder skag, which is also loose and split. Both areas report sharp.
Would it be correct to drill and inject to re-bond splits in place with
a epoxy? Second what is the easiest way to remove stripped fasteners?
my method is futile. great page, great advise.
.
Jeff;
Sounds like an interesting boat. With a
wood boat that has been dry for eight years, there is very little you
can analyze about its condition until it has been wetted out for q
couple weeks and swelled up. Most of the splits in the deadwood you see
are normal checks exaggerated by the woods shrinkage, as our most of
the loose fastenings. I would fill all the cracks and potential leaky
places with roofing cement, tary stuff, and put her in the water. Pull
her back out after 2-3 weeks, scrape off the tar that has been squeezed
out of the swelled cracks, and do the repairs that still seem
necessary.Outside of penetrating epoxy to fix cosmetic soft spots, keep
epoxies and polysulfides away from a wood boat. A wood boat must be
repaired the way it was built. There is no simple way to remove old
fastenings except persistence and inventiveness but often it is easiest
to sister with a new one. Good luck and ask more as needed---------gary
.
Thanks for your reply. Just FYI, I found Mr.
Smith not helpful and rather
insulting. But the West System folks actually called me in reply
to my
e-mail and were very realistic and helpful while not pushing their
products
and honestly offerring the pros and cons of the alternatives.
Nevertheless,
I sure appreciate your help.
Can you give me a quick opinion on the following:
I know it is ideal to replace and repair wood with the same type of
wood. My
boat is constructed out of Red Honduras (sometimes referred to as
"American"
Mahogany. It is very expensive and not very available here in Wisconsin.
However, I have an endless quantity of very high quality kiln dried
white
oak--at minimal cost through a friend who owns a mill. I know the white
oak
is as rot resistant as Mahogony but it would be a "different wood". How
much trouble do you think I would run into if I:
(1) used that for frame repairs, sister ribs, etc?
(2) used that for hull planks above and below the water line?
I am not concerned with the issue of comparable resistance to rot. I am
just unclear on the reasons for using the original type of wood and what
problems are associated with not doing so.
I am concerned about quality and the look of originality, but not
terribly
big at this point on total originality.
Thank you for your kind assistance.
.
Rick:
Sorry to hear about Smith, I guess he's
become more of a curmudgeon than I remember. The main reason for using
the same or similar woods to the originals in boat repair is to keep
the stress factors under different conditions fairly uniform. Different
woods respond differently to stress as well as the effects of swelling
and shrinkage in a water environment. Oak is quite different from the
American Mahogany when is comes to these factors and they would cause
problems used in close proximity such as planking but the oak would be
fine for the structural backbone, ribs, floors etc.,
pieces.Unfortunately, kiln dried wood is not a good choice for
structural members on a boat for it absorbs water like a sponge and
will swell drastically and if the water happens to be freshwater, rot
will soon follow. Air dried is much preferable. For the planking I
would look for some local woods closer to the characteristics of the
Mahogany, quarter sawn fir or spruce are possibilities but try to stay
with hard woods for the boats skeleton. You may have to find a
mill.----------g
.
Thank you for your very, very helpful reply. I am very grateful and
(just
FYI) will certainly "follow to the T". I might add that I am elated with
the content, in that I also have an endless and very low cost supply of
air
dried Oak. It will help me out a lot to use it in the structural repair
only. Thanks again! Rick Jennings.question: Hello Gary,
I stumbled across your website searching about restoring old wooden
boats, and was glued for the rest of the day, top stuff! The reason for
my search is that I have a beautiful old Sunset design 34' yacht, which
unfortunately is in a bit of a state of decay, and I would love to
restore her to her former glory. Although I am a sailor from wayback I
know pretty well nothing about traditional boat building, other than
what I have learned this afternoon. The biggest issue to sort out is
that it has been on dry land for 4 or 5 years now and of course the
timber has shrunk. I gather it is what you would call a carvel design,
although rather than caulking there is a soft wood strip about 1/4" or
3/8" between each plank, many of which have now come loose and some
even fallen right out. The planks themselves seem to be in good order
and still secure to the ribs. Looking at the residue on the strips it
seems thay were originally fixed with a hard putty type of product.
Above th!
e waterline the strips are not the full thickness of the planks, which
on the inside seem to butt together. Below the waterline they are the
full thickness of the planks, so the missing ones allow you to see
right through! What is involved in refloating her, can we reuse the
original strips or do we need to remove all the loose ones and start
again? Many have come loose but are still in place. Can the strips be
glued in solid, or with a soft product, or can they just be held in
place until the wood expands again? Some of the end joints along the
planks are also separating, they appear to be tapered and originally
glued. Could they be filled with epoxy and fared back? There are a few
other hurdles (a bit of dry rot, ....) but my main concern at this
stage is whether or not we can practically get her back in the water
again! The truth is we have just had a sailing holiday in the
Whitsunday Islands near the Great Barrier Reef off Queensland and have
come back with a se!
rious itch to scratch! I will keenly await your advice. Kind regards
, Michael
.
Michael:
Sounds like an interesting boat. The biggest
problem with a wood boat that has been high and dry for a long time is
that do to shrinkage all sorts of changes happen that if "fixed" in
that dry condition will blow apart when the boat is refloated and the
timber swells again. Spiling the seams with a soft wood is an
acceptable alternative to cotton caulking although I prefer the cotton
for the very reason that one would not face the task in front of you.
First I would go ahead and epoxy glue the tapered plank ends making
sure to not just fill the void but clamp the opposing pieces together.
Because you have to allow for much swelling when the boat returns to
the water, the splines cannot be reglued to both sides of the seams,
rather I would glue each spline to one seam edge (use some little wood
wedges in the opposing edge to hold the spline in place) and use a
flexible caulking, such as roofing tar or a polysulfide, on the other
edge most of which will be pushed out of the seam when they swell.
Mainly, in all the repairs you do just keep in mind that the boat will
change shape not only do to the swelling but also do to the stresses a
sailboat experiences under sail. If there are checks, openings, in the
solid keel timbers, fill them with flexible material as well. When you
refloat the boat she will probably take on considerable water until she
swells up, 5-7 days. You can slow this normal leaking by putting fine
sawdust into the water and swirling it with a paddle so the sawdust
sinks. It will clog the leaky areas but still allow them to swell. Have
fun and enjoy the process. Feel free to ask more as needed and thanks
for the compliment on the site .-----------gary
.
question: hi Gary,
I have a german built folkboat, carvel construction, oak BWL and
mahogany AWL. The ribs and floors are of rubinie (I don't know exactly
what rubinie as a wood species is, but that is what they call it in
germany. The color is hard to say because it is under several coats of
linseed oil, maybe something like mahogany in color but a bit darker
and very hard). The stem, stem knee, gripe, stern post, etc. are oak.
My questions are the following:
Just forward of the mast (deck stepped) two ribs are split/cracked
at the ends where they make contact with the stem knee, one on port and
one on starboard, directly across from each other. What would be the
most practical way to fix this. The cracks are not big, maybe 2-3" and
do not move when I push on them. Nevertheless, I want to do something
before it gets worse. Since they are across from each other, my idea
was to fit a small floor out of mahogany or oak that would fit snug
against the ends and go up the rib for another 6" or so. I would only
use a good polyurethane caulk/glue to hold it in place so that I don't
upset the origional balance of the boat. What would you do?
Next, a former owner fitted a depth transducer just forward of the
keel, on the centerline of the boat, and right through the stem knee.
It has been installed maybe 15 years or so and there has never been any
problems. However, I don't like it and plan on doing lots of cruising
this summer, much of it in the ocean and am concerned about structure.
Any suggestions? My idea was to remove the transducer, make a new floor
that would fit over the hole, and hold it in place with a bronze bolt
in the origional hole and fastened snug on the inside. Naturally with
lots of goo to keep the water out and a polyurethane caulk/glue
everywhere else. Is this going to help at all or am I getting ahead of
myself?
Next, at the turn of the bilge, once in the salon, and once below
the cockpit, are two ribs with cracks that do not go all the way
through to the planking. The cracks are about 2-3" long. Here I have no
idea. Any practical ideas?
Thanks alot for your help. I really appreciate it.
.
Steve;
Great boat, I am looking for one myself. Often when the frames are steam bent the fastenings occasionally cause minor splits along the grain which can look like cracks but are not structural. You can mix up some epoxy with a bit of thickener and fill the split to strengthen the frame and seal it from fresh water intrusion. But if you are a bit concerned about structural integrity, your idea of adding a floor is OK, but do not glue it in rather use fasteners so there will be some flexibility . The depth sounder transducer hole, however doesn't require a floor but merely epoxy in a hard wood permanent plug. The aft split ribs I would treat as the ones above. Over time keep your eye on the planks under the cracked ribs for any sign of movement away from the rib. Normally longitudinal surface splits on steam bent ribs are not a structural problem but any lateral, cross grained cracks cause structural weakness and call for frame replacement or sistering---good luck, enjoy your wonderful boat and feel free to ask more as needed-----gary
.
question: I have a sparkman & stevens deb 33 in need of complete
restoration and tlc. It is mahogany on laminated iroco, teak decked
with a lifting keel and has been flooded for 6 months or more. Hull is
carvel but with splines between every horizontal plank! some small
parts of rot near the uderside of the transome but otherwisw sound. Is
this a good constructed boat and will it repair to as new? any help
appreciated.
regards, Harry.
.
Harry;
Interesting boat, it may be a Sparkman & Steven's design but I have
never heard of them using such construction techniques as you describe.
Carvel planking with glued splines usually requires fiberglassing over
in order to resist the natural expansion and shrinkage that comes with
a wood boat. Not a good scenario unless the glass is extremely thick
and than you have added a lot of weight. Also, I have never seen a
retractable keel on a wooden boat. I think you are looking at a custom
boat whose builder was a bit naive. I can't say more without more
details but I would recommend being cautious about getting into a
restoration job. If the basic construction process was ill conceived
and flawed, rehabilitation will indeed be a hole in the water into
which you pour vast sums of money. It may be worth your time to contact
Sparkman & Stevens and see what they say or go to the forum at
www.woodenboat.com and ask for advice. Good luck -----gary
.
I am the proud owner of a fine boat that is in need of some tender
loving care (TLC). She is mahogony on oak ribs .It is my intention to
restore her to her former glory
my only real concern over the work is that i have to replace 3 ribs and
2 4ft lengths of planking at the stern, the ribs can best be described
as double recurve in that over their length
they take the shape of the hull and then change direction into the
bilges. Question 1 should i replace the whole rib or scarf in a piece
above the damaged rib ( 7ft the crack is2ft from the bottom). Q.2
Should i use green oak or is there a more workable wood that could be
used . I fear this will not be the last imposition on your knowledge.
kindest regards and best wishes
Dave
Dave;
Nice boat. Scarfing bent ribs is not a good idea because the stress
distribution is changed drastically, so, if you have access, I suggest
you replace the whole rib and yes green oak properly steamed is the way
to go if you are to stick with tradition, otherwise laminating up a
frame either in place or on a jig is another possibility and for this
you would use a more seasoned oak so the epoxy glue would have better
saturation. Feel free to ask more as needed-----gary
.
question: gary
I have just crawled out of the bilges in Sandpiper and i have made good
progress in surveying the restoration requirements (i did this after
allowing a cooling offperiod) and i am very pleased with what i have
found so i can now concentrate on the hull repairs first then move onto
the renewal of the decking and cabin . My questions are as follows
1
As the boat will be out of the water for many months will this cause
any real problems when i put her back in, for example would it help if
she was put back as a bare hull then taken out to fit the engine and
decks etc.
2
It looks as though i might stuggle getting decent straight grain green
oak so any suggestions on a suitable alternative for the ribs (last 4
at the stern).
3
Paint removal,when she was made the hull was varnished inside and out .
I know this will make a lot of extra work but she would look stunning.I
have had various suggestions including sand/bead blasting,burning and
paint stripper what is the norm for this type of self inflicted pain
!!!!!!
regards
Dave
.
Dave
Sounds like you're getting yourself into a large and worthy project, so
let me first give you some hard earned advice, most wooden boat
restoration projects fail because the enthusiastic owner undertakes too
much at one time and gets buried in time and money problems. To do a
successful restoration you must first prioritize what needs to be done,
the structural repairs being number one and cosmetic considerations at
the opposite end--ie your ribs first, the deck than the cabin, then
worry about stripping the interior. Also failure follows if you don't
allot enough time for the work and especially if you don't factor out
the jobs over a realistic period of time ie; one year do the ribs, the
next the deck, the next the cabin and so on, plus you use the boat in
between jobs which keeps the hull swollen and in shape.-- So--to your
questions;
1)--It is always preferable to do the work in large enough intervals
that the boat is not out of the water so long that she dries out
thoroughly, but if the boat will be out for an extended period, no harm
will be done if she is properly supported and you will have to do some
recaulking of the seams before launch and once in give her plenty of
time to swell. The only part of your work that may change after launch
would be the engine alignment........
2)--- It is easier to find oak flooring strips and laminate up the ribs
on a jig or in place using epoxy glue
3)--- The removal will be considerably easier if the paint was applied
over the original varnish, but if not, both burning and stripping tend
to push the paint into the grain of the wood, so my preference is
gentle waterbead blasting
Hope this is helpfull and feel free to ask more as needed-------gary
.
question: Hi Gary:
I am currently thinking about restoring a 26' Bogue Sound (New Haven
type)Sharpie. The hull is in relatively poor condition, but I can get
her for free, and since I previeously owned the boat for several years
in the eighties I would like to ressurect her in a manner that would be
economical, durable and as maintenance free as possible. Most of the
deck, some of the bottom planks(cross-planked 2X6 heart pine), and part
of the keelson and centerboard trunk are in need of replacement. The
stem, rounded transom, hull sides (bald cypress), chine logs and deck
framing appear to be sound. My thoughts were to get the boat under to
shelter, remove and then replace the bad framing components and bottom
planks with pressure well seasoned treated pine or heart pine, if
available while replacing all of the galvanized fittings with silicon
bronze or stainless. Then cover the carvel planked hull with a thin
sheet of marine ply sheathed in light cloth and epoxy. Next cover the
recaulked or splined bottom planks with tar and cover with copper
sheathing up into the trunk. I have used this method in the trunk
previously and it worked very well, so I thought why not do the entire
bottom letting it come up to a few inches above the waterline and
thereby covering the lower portion exopy sheathed topsides. This would
eliminate having to paint the bottom each year. I haven't ever seen you
recommned sheathing carvel planking with thin plywood and then covering
that with glass/epoxy. Is this a legitimate option for a hard chined
boat like this, and if used would it prevent the need for
splining/filling joints in the topsides prior to sheathing? The ply
sheathing and original planks would be sealed with epoxy coating prior
to installing ply and covering the exterior with glass. Once the hull
was restored, I thought I would cover the decks with two layers of ply
and sheath that with glass/epoxy, lapping the the topsides by an inch
or so. I planned on covering the hull to deck joint with a varnished
false wale all the way around the boat like it currently has. What are
you thoughts on this plan? I am open for any suggestions, but am a
little adverse to just splining/ filling and then covering with glass
beacuse I live in the southeastern US and because I don't know how
effective epoxy is at laminating glass to cypress due to the high
content of natural oils in this wood. I am not concerned about the
added wieght of the ply sheathing, because this boat has always sailed
best when loaded down with weight. In fact, I have seen antique photos
of these sharpies sailing along quite nicely while overloaded with
peolple and/or oysters to way above intended the waterline. Since she
carries no ballast other than people, I beleive the added weight prove
beneficial.
.
You got no problem here. Seems like you have thought this out carefully and your solutions make sense. With a tired carvel planked hard chine boat, plywood sheathing glassed over is a good way to go. When I have done it, I usually bed the ply in some wet/dry tar roof patch to eliminate condensation between the ply and planks. I also would suggest looking at using a lagging compound over a screen cloth for a deck finish versus fiberglass. The lagging, available at plumbing supply houses and waterproof after painting, is more flexible than glass and easy to repair. Glad to answer anymore questions but seems to me your ready to go. Take some pics along the way and and send them on.------gary
.
question:
Hi, I have just recieve into my possession a 38 foot 1930 ex RCMP (I am Canadian, eh)wood cruiser. she has been on dry land for some time and all the planks have shrunk so gaps of up to a half inch exist between the planks. So I am assuming I should replank the whole bottom? I have woodworking skills, but no knowledge of boat construction. The previous owners had started working on her and have sistered some ribs with plywood, is that an ok thing?. The planks seem to be cedar, would that have been a common wood used? what wood should I use for the replanking? Thanks for any help you can give me. my hopes are to restore her to as original as possible.
.
Hi;
You have a wood boat, your life will never be the same again . First,
No radical moves. Cedar planking is AOK, plywood frames is not, frames
should be oak or similar hardwood or strips of the same laminated up
with epoxy glue. Most of the seam gaps are do to lack of moisture in
the wood and will disappear when the boat is back in the water but in
the meantime you can start wetting down the bottom by stapling towels
or burlap to the planks and keeping them saturated. A couple weeks of
this and you will see those seams close up. Normally with a wood boat
that has been out of the water for several years the best procedure is
do the minimum needed to get it floating again and then after it has
been in the water for a few months, having totally swelled up and
regained its shape, haul it back out and do the work necessary. Having
carpentry skills will help you greatly , just trash your square and get
a new angel set and ask a lot of questions of the right people, there
is a lot of wrong boatyard advice out there , stick with those who make
or have made their livelyhood from working on wood boats . And lastly
stick with the techniques and methods that were used in building the
boat in the first place. There are many high tech products that are
very seductive but in the long run the tried and true methods work the
best.-- have fun and ask more as needed-------gary
.
Hi Gary,
Thanks for you wisdom, and the lightning speed in which you delivered
it. In your message you had mentioned stapling towels or burlap to her
hull and keeping it soaked. would something like carpet underlay work?
as burlap is hard to obtain, and I am afraid of how many towels her
hull would consume? You had mentioned oak as the proper material for
the ribs (frame) I have read that there are only a couple of species of
oak that are suitable, what would be your recommendation?
A few of more questions if you don't mind. should I deplank her where
and when I replace her frames? if so, she is fastened with brass
rivets, what would be the best procedure of removal, and what should I
use to refasten them? I of course have many questions, but I will try
and place them appropriately through-out her rebuild as I don't want to
suffer from
information overload.
Thanks again, you are already an inspiration to me.
Torben
.
Torben;
Yes, the carpet padding works great, or anything else that will hold
moisture,also if you have good access to the hulls interior you can put
the material inside against the planks. For the frames, white oak is
best, red is OK but more susceptible to rot, if it is to be steam bent,
the oak should be green , ie. high moisture content. There are also
other exotic hardwoods that are OK but they are usually quite
expensive. If you laminate the frames, the oak should be dried, air
dried is best but kiln dried OK. Most oak you find will be kiln dried,
the green usually has to be found at a mill or specialty lumber shop.
Great the planks are riveted, best way to fasten. Easiest way to undo a
rivet is to grind off the clench that holds on the washer. You can get
rivets or any fastening at
http://www.jamestowndistributors.com/?ltaj8909------BOATBUILDING%20SUPPLIES
If you are replacing bent frames, it is often helpful to remove a plank
at the point of extreme bend, so you can easily clamp it, also some
remove the garboard plank, bottom-most plank, for the same reason. Much
depends on how much interior access you have. Feel free to keep asking
questions. Another good information source is the forum at
www.woodenboat.com-----gary
.
Hi Gary,
Again thanks for your wonderful wisdom. I have been researching on
steaming and bending the oak frames, and have found many interesting
and informative sites. Unfortunately I am still somewhat in the dark,
as all of the sites I have found deal with small (1" or less) oak
frames for canoes or other small hulls. I am dealing with the size of
planed 2x4 stock, and some with double bends. Before I go too deep into
that, could you explain to me a bit more about the forming and use of
laminated oak stock for the frames. While I am writing, a question on
the few planks I feel need replacing (butt ends are weak and slightly
deteriorated). should I replace the plank as a whole, or just cut out
the weak portion and replace it?. or is there a minimum lenght that
should be used for planking?
Thanks so much.
Torben (restorer of the 'REDCOAT')
PS: in some of your forums I noticed you mentioning boat building
schools, I thought I would pass this site on to you for your review.
http://www.boatschool.com/
.
Torben;
Yes, it is frustrating to cut out lengths of good planking just to fix
bad ends, but you should go at least 3 to 4 frames and the adjacent
plank butts (joints) should be staggard the same amount or more . To
avoid all the hassle, I often put in a false stem or sternpost attached
to the original in order to get to the good plank wood for refastening
, then you can cosmetically repair the ends without refastening
worries. Laminating is as it implies, laying up thin layers of wood,
epoxy glued together. The trick is pulling it off in a confined area
and figuring out how to keep the layers from sliding all over the place
as you are laying up the pieces, I usually dry fit first and drill a
hole through layered frame and plank to put a bolt through when I lay
up the glued pieces. Another way is to take off the lines of that area
of the hull and make a jig to lay-up the frame outside the hull and
then install it in one piece, if you can get it in. Unfortunately in
the tight bends, steam frames , over time , often crack at right angles
to the direction of the bend. Apparently, when steamed , the
longitudinal wood cells at the tight turn compress and actually turn 90
degrees basically creating a cross grain, where a stress crack
eventually arises. Of course this does not occur with laminated frames,
but because laminated and steam frames react to stress differently, it
is best to be as consistent as possible throughout the hull ie. mix the
2 as little as possible. But , all is a compromise, including wooden
boat restoration .--g
.
Thanks Gary,
That was great info, I will stick to the original solid bent frames as I
would like to keep her as strong and as original as possible.
Although I am not sure exactly what you mean by false stem/ stern post?
Would they be like short sistered framing?
Thanks again,
Torben
.
Torben;
What I was referring to was actually fitting in and bolting another
timber behind the existing stem or stern timber such that they are
beveled to fit tightly to the planks allowing you to add new plank
fastenings into good wood, thereby avoiding messing with the plank ends
beyond cosmetic repair--------g
.
Hi Gary,
I am back from my holidays afar and ready to dig in to her rebuild. I
have
located sources for white oak, but none match the dimentions I require
(1
1/2" X 2 3/4" ) I can however obtain obtain planed 2X6 white oak stock.
Could I rip this stock in half without compromising it's integrity for
bending and strength? Also all the available selections of oak have been
kiln dried. Through reading, I understand that KD is ok, just a little
harded to bend.
Thanks, Torben
.
Torben:
Yes, finding good green bending white Oak is difficult and usually only
available from a mill or local farmer. Not only that, but one must pick
the boards carefully, they must be straight grained and quarter
sawn.Thin kiln dried lumber can be resaturated and adapt to steam
bending, but something 11/2 thick probably will stay brittle and break
on you. The bottom line is that it is much more convenient to laminate
pieces of white oak flooring. If you wish to pursue the green oak , see
if there are any local furniture makers and talk to them about a
supply. Steaming is a lot more fun and less messy than
laminating-------gary
.
Well hello
The project is coming along at a pace.The starboard side of the hull
has been stripped to bare wood ( rubbing strake to boot top) what a
task, the careful use of paint stripper and scraper has left a
reasonable surface. I have been advised that if i work a final layer of
paint stripper on using wire wool and rinse it off with cellulose (auto
paint thinner) this will remove the remaining vestiges of paint ,what
do you think?. Now to the items in my subject header. I would like to
lay a wooden deck and construct the cabin of planks rather than use ply
I realise this is an expensive option but i do not want to compromise
the end product on cost over time issue. What are your thoughts on
materials for the topsides?. Next question ! Now that the hull is
stripped bare is there anything i should or could do to preserve the
hull planks from drying out given that i have not yet decided on the
final finish ie varnish ,oil or some other method , your comments would
be most welcome .
.
David:
Sounds like you are coming along just fine. The suggested final paint
removal method sounds AOK. After the hull is smoothed to your
satisfaction I would saturate the planks with linseed oil thinned down
with turpentine and, if possible, heated. This will enliven the dried
out wood and will not interfere with the final finish as long as that
choice is oil or alkyd based, ie. no epoxy or urethane. As far as the
deck is concerned, I appreciate your desire to stay traditional, but
the bottom line is you can't beat plywood for strength and ease of
finishing the surface. Especially with older wood boats, the rigidity
of plywood helps to stabilize the hull. Plus it is cheaper and labor
wise much less time confusing.---------gary
.
question: HELLO,
I LIVE IN NEWFOUNDLAND, CANADA. I HAD GIVEN TO ME AN OPEN FISHING BOAT
WHICH WAS USED IN SALT WATER OF COURSE. IT IS IN NEED OF PAINT STRIPING
AND REFINISHING. THE ORIGINAL FINISH WAS MARINE PAINT WHICH WAS USUALLY
DONE YEARLY. THE BOAT HAS BEEN OUT OF WATER FOR SEVERAL YEARS NOW. A
COUPLE OF HULL PLANKS HAVE ROTTED IN THE BOW AREA WHICH I HAVE REMOVED
BACK TO SOLID MATERIAL EXPOSING THREE TIMBERS WHICH HAVE ALSO ROTTED
AND NEED REPLACING. THE REST OF THE BOAT SEEMS SOUND BUT I WILL NOT
KNOW FOR SURE UNTIL ALL THE PAINT HAS BEEN STRIPPED AWAY. WHAT IS THE
BEST AND QUICKEST METHOD TO REMOVE ALL THIS OLD PAINT. IN ADDITION TO
THE PLANKS AND TINBERS THAT NEED REPLACING THERE ARE SOME PLANKS THAT
SEEM TO HAVE A SPONGYNESS TO THEM HOWEVER THERE IS NO VISABLE SIGNS OF
ROT. IS THIS A PLACE WHERE CPES CAN OR SHOULD BE USED? I'VE READ LOT OF
YOUR ANSWERS CONCERNING ROT AND DRY ROT AND HAVE LEARNED A LOT, THANKS.
AM I CORRECT IN INTERPETING THAT A NEW PLANKS' EDGES MUST BE BEVELED FR!
OM OUTSIDE TI INSIDE, IF SO HOW MUCH OF A BEVEL?
IF THE COTTON CAULKING MATERIAL IS LOOSE DOES IT HAVE TO BE REMOVED AND
REPLACED OR CAN IT BE RE-TAMPED AND THE SEAMS FILLED?
THANK YOU,
CARL PEAR
.
Carl;
Good project--from the bottom up. You can re-tamp the cotton as long as
the inside seam is not so far open that the cotton would drive through.
If it is, you have to wet down the hull until the planks swell enough
to avoid this. Yes the planks are beveled for the above reason,
touching on the inside and from 1/4 to 3/8 on the outside. Yes,
penetrating epoxy will work fine on the spongy rot free planks but if
that sponginess is extensive, you should replace the affected planks.
For paint removal use a good, expensive, stripper and a very sharp
scraper. Good luck with your worthy project, ask more as
needed-------gary
.
HELLO AGAIN,
IT'S GREAT TO GET A PROMPT REPLY, THANKS. I UNDERSTAND YOUR ANSWERS BUT
I HAVE ANOTHE QUESTION. LETS SAY THE OLD PLANKS ARE OFF AND THE OLD
TIMBERS ARE OUT AND THE NEW TIMBERS ARE READY TO BE PLACED. ALL FITS
WELL SO HOW TO YOU ATTACH THEM TO THE KEELSON?
THANKS AGAIN,
CARL PEAR
.
Carl:
Usually the keelson is notched to recieve the frame without a
fastening, the fastenings being in the planks plus in a floor timber
that goes athwartship. The floor timber being attached to the keelson
via a driftbolt , large nail peened over a washer, or a lag bolt, and
or a keelbolt (sailboat).------gary
.
question: Dear Gary,
Thanks for your website, I have found more info in a few minutes of
reading your reponses than weeks of searching obscure magazine
articles. Thanks for helping us keep wooden boats in the water!
My situation: Bought a beautiful project boat on the net based on
photo's, research and a knowledgable seamans word; A Nova Scotia built
1988 34'Jay Benford designed Pinky Schooner, local pine or spruce
carvel over oak. At present stored on the hard 1 year awaiting 1/2
dozen plank end decay repairs...Q-How would you suggest go'in at it?
Also there is considerable rot at the bulwarks but that can wait till
she is wet again I think. Q2-Can one use alternate wood species(more
rot resistant)for patching in with the existing pine ( I am assuming
the local pine is the problem in the first place or too much fresh
water)?
I am a hobby viking style boat builder/artist accustomed to building by
eye...Q3-How much time would you guestimate on a plank-ends
replacement/repair for one with good but neverdunit before wood skills?
Thanks so Much!
Lee
.
Lee;
It's the fresh water and no air circulation, not the wood. Nice boat,
good project and thanks for the strokes. First take care of any frame
replacements, then do the planks. Local wood is fine, cedar is great.
If there are planks requiring steaming, get green lumber , other wise
air dried is best. When you say plank -ends replacement, I am not sure
what you mean, if it is short end pieces at the stem or stern you must
do longer lengths, 4 or 5 frames worth anyway and the joints must be
sufficiently stagard. If it is just the plank-ends you can fit in an
inner stem or stern piece and fasten the planks to that instead of
replacing the plank. Also, antifreeze kills rot spores, so spray it
around where you suspect potential rot exposure. Boat carpentry skills
are no mystery, just a few tricks here and there. Without more detail I
cannot estimate time, but the general measure with boat work is take
the initial estimate multiply by twenty, divide by 3 and square the
result------and take an aspirin. Ask more as needed------gary
.
HELLO AGAIN,
I'M READING YOUR ADVICE TO OTHER BOAT OWNERS WITH PROBLEMS AND I MUST
SAY YOU KNOW YOUR STUUF. EVEN A NOVICE LIKE MYSELF CAN TELL THE REAL
MCCOY WHEN HE SEES IT. I'M READING ABOUT RIB REPLACEMENT. WHICH IS
BETTER A SOLID RIB OR A LAMINATED ONE? I HAVE LOGS WITH THE NATURAL
BEND IN THEM READY TO BE SAWN, SHOULD I DO THIS OR LAMINATE? SINCE THE
RIBS TO BE REPLACED ARE IN THE BOW AREA THERE IS NOT A GREAT DEAL OF
BEND IN THEM AND THE LOGS ARE BIG ENOUGH TO TRACE THE RIB AND CUT OUT
WOTHOUT BENDING IN ANY WAY. WHICH IS BETTER?
THANKS AGAIN FOR THE ADVICE,
CARL PEAR
.
Carl;
I always prefer the solid to the laminated, especially when you can get
natural bends, but sometimes with very severe compound bends in the
hull where a great deal of steaming of the solid frame would be
required , laminating is easier. Also where the interior of the hull
interferes with fitting in a solid frame, laminating is OK. Normally
with wooden boat restoration it is best to stick with the method used
in building the hull in the first place. Also a solid rib and a
laminated frame handle stress differently so it is best to mix the two
as little as possible.---------g
.
HELLO AGAIN,
SORRY TO KEEP COMING BACK LIKE THIS BUT NEW QUESTIONS KEEP POPPING UP.
WHAT IS YOUR OPINION ON REMOVING PAINT WITH A TORCH? DO YOU USE A SMALL
PLUMBERS TORCH OR A ROOFERS TIGER TORCH? WILL THE FLAME HARM COTTON
CAULKING IN THE SEAMS?
THANKS AGAIN
CARL PEAR
.
Carl;
Burning off paint is OK if you are going to repaint, not varnish,
because when you burn, the paint melts and seeps deep into the wood
grain to be always seen. I don't like a torch, much prefer a heat
gun--------g
.
Gary,
Thanks for the fast response and advice; It is where
planks but up to one another amidships (decayed at the
fastenings I presume)...how many frames fore and aft
of the bad joint would you go with a new plank? (I
don't know yet what the frame spacings are, there is
no decay reported at the stems). Should I drill in
some ceiling vents at the bilges to ventilate?
Thanks Again!
Lee
Enclosed are some photo's
.
Lee;
I am jealous, what a beautiful boat, thanks for the pics. The plank
joints are usually butted between frames with a butt block providing a
fastening point. These areas can deteriorate from rot, above the
waterline, or electrolysis of the fastenings below the waterline. If
the damage is extensive and the repair goes beyond replacing the butt
block, you have 2 choices. You replace a large portion of the plank,
remember you are going from one butt block to two and they must be
several frames apart (5-7) and no 2 butts should be within the same
frame bay as another, so spacing can be difficult. Or , because we have
such good epoxy glues, you can eliminate the butt altogether and put in
a dutchman( see attach.), a short plank piece with scarfs of several
inches at either end which creates a large gluing surface, just epoxy
glue the ends. You can put in a backing block to screw to or land the
scarfs on frames and fasten there, or find another way to put pressure
on the joints as they set up. When it comes to ventilation on a wood
boat, there is never too much, get circulating air to any suspected
dead air spaces. If you told me I forgot, where are you and your great
boat located ?-------g
.
Gary,
Thanks so much. Your advice is something I can visualize and put in
motion as soon as I get out
there, and the compliments on RESOLUTION and my luck is excactly how I
feel about it...Bought the boat off
the net for a pittance from Ships Company, a historical reinactment
group out in the Chesapeake Bay
area. Timing is everything they say and I had a check in the mail
within a few days after learning of it. I
have read about the Pinky's in WB and was impressed..I am a firm
believer in doublenders. SC bought another
bigger ship and had to get rid of RESOLUTION. My contact at SC was a
naval architect and seaman who so
impressed me with his knowledge along with this being an organization,
arrested my concerns of buying before seeing.
"Resolution" is a documented Class C Tallship built after the 1800's
vintage Pinced Schooner. The
historical version was an armed escort /dispatch vessel to USS
Enterprise, as well as the dominant boat
style of the eastern US fishing fleet of the period.
I will be going out there to recon the area in Feb. or March to see my
new "command" and to put out some job
feelers etc. Then return here to make prep for a move out east, repair
my ship and get into the water ASAP
for my new life as a livabord!
Thanks for your interest, for more info. my boat may still be on their
website www.shipscompany.org under
boatnews section.
Thanks Again! Lee
.
Thanks Gary!..A good diagram, it lends me the
confidence to start cut'en holes to patch up me
boat!!Yes plank skarfs are familiar,..made me a router
jig way back when.
I might ask about brands of glues you recommend for
this dutchman technique later as I get closer to the
job.
This is quite a humanitarian thing you do for us in
sharing your knowledge so freely...if your'e ever out
in the Chesapeake area please look me up for a sail!
My sincere gratitude and best regards to you,
Lee
.
question: Gary, could you give me some info on
woodbleaching, I"m told when
going over wood with fiberglass you should bleach the wood.Can you
use clorox for this? Oris there some special wood bleach product
i should use.Will clorox hurt the wood? Also when deciding on resins
what is the difference between polyester resin and vinylester resin?
which is better ,and why. Thanks for an info you can give Charles
.
Charles;
When fiberglassing wood you must get out any surface oils that would
inhibit the resin from penetrating the surface, except for plywood
which has no surface oils. You can accomplish this either with any kind
of bleach or preferably acetone.-----use vinegar to get resin off your
hands.-------g
.
question: Hi Gary: I have recently committed to a 1963 mahogany lapstrake on oak Nordic Folkboat. Even though the boat seemed to be in excellent condition and has certainly been maintained with care by her present owner who has had her for approximately twenty years I decided to hire an experienced wooden boat surveyor. Although the results of the survey didn't turn up anything serious enough to kill the deal it did report of five broken ribs. This damage was previously undesclosed and I believe unkown to the present owner. The ribs in question are all between rib set #15 an #20 when counting from the bow, and are confined to the bottom ends near the area of most extreme bend and all within 6" to 12" of the bottom end of the ribs.
I know that cracked ribs in this area is a common problem with older wooden boats and that to learn that no rot is present or has yet been detected is, in a way, "good news".
As I understand it the three main options are; 1) Sister the broken ribs, whith the best approach being to place the new rib midway between existign ribs. 2) Remove the broken section and install a scarfed repair piece. 3) Remove the offending ribs entirely and install new steamed stock ribs. From what I have read in other places and in your decussions with Warwick, I have come to the conclusion that there is no "perfect" answer. I know that in this case the scarfed repair is likley the least intrusive and least expensive option, but your comment regarding the "hard spot" and new stresses that would occur because of this repair appproach make it less attractive than I had previously thought it might be. Whew! Here is my question:
Since there are only five ribs out of 54 that are damaged and that the damage is limited to an area where extra support is available from the floor timbers, would I (and the boat) be better off if I just sailing the boat as is while continuing to monitor the situation and watching for cracks appearing either in other ribs or in adjacent planks, or should I proceed with one of the three options that are avaialible to me? If you suggest immidiate attention what method do you suggest given the location in the mid-setion of the boat and the limiting factors involved? Thanks in advance for your sage advise.
Bob
.
Bob;
I love folk boats, if there is an ideal design, it is it. I think
the answer to your question lies in the fact that no one knew the broken
ribs were there until the surveyor got poking around, so there are no
gross negative effects at the moment which makes sense since the
lapstrake construction depends little on the ribs for support. Also with
lapstrake planks one does not create hard spots by varying the dynamics
of rib construction, so , at your leisure, make up a template of that
sharp curve in between the existing broken frames going up 20+ inches or
so and from that template make a jig upon which to laminate a new
partial frame. That way they will be ready to install when the boat is
next hauled. Make the jigs so the ribs are a bit over bent , use a good
epoxy glue and you can probably get away with flooring oak for the
laminates. If you wish to maintain originality in the restoration, than
the scarfing method is easiest but the break will probably reoccur over
time since the problem results from the wood cells, in the steam
bending, going from a longitudinal orientation to a horizontal one,
that is why the break seems to be transverse to the grain but actually
isn't. Enjoy that great boat----ask more as needed----gary(sage}
.
Gary(Sage);
Thanks you for your rapid response and for giving credence to my "gut
feeling" an the surveyors verbal encouragement that the damage is of no
immediate concern. Thanks also for clarifying the potential for a "hard
spot" as it applies to lapstrake construction. Your respected opinion
has allowed me to relax a little regarding the relative urgency in
dealing with this damage.
You should know that I just came across the "Mastmate" site yesterday
and am very enthusiastic about it. I have it book marked and will
definitely be a regular visitor. Your column in particular is a valuable
resource for vintage boat owners. However there also lots of great
links. I will, no doubt be writing to you again some time but will
definitely be monitoring your column. Keep up the great work!
I have attached a few pictures of "Mingulay" for your reference.
Regards, Bob
.
Bob;
I am jealous, she is beautiful. Depending on the climate she will be
kept in, I would be careful with a dark hull color for it absorbs the
heat and tends to drive the moisture out of the wood which can shrink
the wood and allow cracks to occur where that nasty rot spore infested
fresh water can sneak in and raise havoc. Keep me up to date on your
advetures with Mingulay------gary
.
Gary;
Don't you just hate serial e-mails? Thanks for the heads up
regarding the hull color. I have read this comment before elsewhere, and
do love the traditional look of a white painted lapstrake hull. I think
a white hull in combination with a teak deck looks stunning and will
perhaps work slowly towards that objective. The combination of dark blue
hull and a white deck is rather visually striking though, I can see why
the current owner decided on that color given the white deck. She will
be kept in Kingston Ontario where summer is all too short and winters
are long and relatively cold. We are located halfway between Toronto and
Montreal right at the east end of Lake Ontario. It is wonderful sailing
country, probably some of the best sailing in Canada. I am hopeful that
it is not too late for this "old dog' to learn enough new tricks and
will be able to enjoy many days sailing local waters in this fine little
Folkboat. She will definitely be a fresh water boat as she has for at
least the last twenty years and I suspect for her entire life. The
surveyors judicious soundings with his phenolic hammer didn't turn up
any bad planks. Hopefully he didn't miss some entrenched rot. I will
have to give some serious thought to changing the hull color in the
future.
Regards; Bob
.
Bob;
Beautiful country to sail. I am sure that lovely boat will teach you
much and will always get you from here to there and back again no matter
the conditions. You might consider a block of salt in the bilge to ward
off those rot spores. Take care----g
.
Hi Gary;
Here is some news "hot off the wire" I am still awaiting the
formal written survey, but the surveyor has sent me a few more
pictures
that indicate some attention to the cabin roof is required.
In the interior shot you will see two beams which are cracked near
the
cabin wall. You will also see some rain water infiltrating at the
end of
the beam with the most damage. More troubling, is the adjacent
section
of the member supporting the beams and fastened to the cabin wall
which
is missing a fair bit of "meat". Is this member properly called a
carling? If it was in a house it would probably be a ledger strip,
but I
should become fluent in "Boatalk". For now I will refer to it as a
carling, if I am wrong please be patient with my inexperience and
let me
know the proper term.
The shot of the exterior of the roof shows what looks to me to
be a depressed area at the junction of the cabin wall and the
finished
roof particularly on the starboard side. The narrow edge of exposed
mahogany (possibly the portion left after the sidewall was rabbited)
actually seems to be slightly above the finished roof surface in
several
places. I would guess that the original intent was to have a flush
mating of the two surfaces.
I suspect that at the location of the worst of the beams ponding
has occurred and over time the infiltrating water has caused decay in
the carling and perhaps in the beam ends. I would think that a design
that includes a flush butting of the roof to the cabin wall and the
resultant seam is kind of asking for infiltration. Certainly this
exterior joint could be caulked, the carling bedded in some
appropriate
material and the intersecting edges of the carling and interior roof
calked. In fact it is evident that plenty of calking has been used
either as a preventative tool or to attempt to cure an active and
possibly chronic leak.
I would guess that as long as there is any potential for water
to enter, all that interior calking would be like the finger in the
dyke. In fact it could allow any infiltrating water to remain
trapped at
the beam ends, behind the carling and cause rot to set in. On the
other
hand if the finished surface of the roof overlapped the cabin side, a
more positive drainage pattern would be assured.
For the short term I will want to affect a repair to any broken
or decayed beams, reverse any sagging that has occurred at the
roof/cabin wall junction, repair or replace the carling, and try to
prevent future infiltration of water. I have fooled around with
antique
cars, old houses, and vintage furniture enough to know that hidden
surprises often await uncovering while engaging in "small" repairs.
In
the long term I might just find myself into some more serious work.
I don't know, at this time if the beams are let into the cabin
walls with a dovetail or are connected by some other method. I can
thing of a few repair options available if the beam ends are solid.
However, I would be hesitant to invest much time or money into a
repair
of the beams without knowing for sure that there is no rot present at
their ends. I expect removing the carling will allow a visual
inspection
of the beam ends as that member has been notched at all the beams.
I know it is impossible to predict in detail what might lie
beneath what is seen in these pictures, but it could mean a major
rebuild or at least re-sheathing of the cabin roof is in my future.
I would be interested in knowing what you see when you study
these pictures. I would also appreciate knowing how you would
approach
things considering both a quick but efficient fix and your design
suggestions for watertight re sheathing job.
Since it will be at least six months before I even see this boat,
perhaps I am getting a little ahead of myself. Of course once it does
arrive I will want to get out on the water ASAP and want to have a
reasonable repair game plan established in advance.
I think this is where you say "welcome to the world of old wooden
boats"! Let me know what you think.
Regards----Bob
.
Bob;
Seems to me you have the problems pretty well
scoped out. Once you remove the carlin, right term, you will know more
about how many beam ends are bad.. Short of replacing the whole beam I
would have one of two approaches, if the ends are totally shot I would
epoxy glue in a 12 to 1 scarf, if the beam is 2 in thick the scarf
would taper over 24 inches. If the ends have some integrity I would cut
out 1 inch off the bottom of the beam over its whole length and
laminate on 2 new half inch pieces using epoxy glue. Once the carlins
are pulled you can inspect them but if there are any problems at all I
would suggest making new ones.
The edges of the cabin top are the typical leaky construction, causing the beam end rot, and probably have spotted edge rot under the molding. I would take off the molding, and depending on the thickness of the top, cut back that distance from the edge and epoxy glue in a piece of 1/4 round so when you redo the top with fiberglass, canvas or lagging, you bring the material at least an inch over the edge so that the mounding sits below the deck to cabin house seam not right on it. This way you avoid trapped fresh water right at the seam plus you can see if any problems are developing. A little more work but well worth it over time..Hope this helps, ask more as needed--Nice project------gary
.
question: Hi there, I live down in australia and recently took possetion of an old harbour workboat built in 1950. It is 27 foot long and carvel built currently the engine is removed and i have it moored on the water. Im currently just trying to save her and have fixed up the deck etc to seal her topside and although lacking care over the years and having quite a few broken frames its still floating ok the bilge pump has a little spit every few minutes but its holding it own. My next order of business is the hull and structure and im wondering if there is anything i can do to fix broken frames with the boat floating on its mooring or must it be slipped. I have thought of scarphing the broken ones , several have small sister ribs already. Im confident in steaming new ones but i guess replacement in water is out of the question. Can frames be fixed from the inside of the hull im an experienced commercial diver if something needs to be done on the outside if that helps, i guess!
im just looking at what can be accomplished without slipping the boat as it will save me money when i do slip it. Thanks matey..
.
Sean;
You pretty much have to have the boat out of the water to do major
frame repairs. Although you can make patterns for the rib shapes and
actually make up the ribs, either laminating (less likely to break)or
steaming with the boat in the water, but actually installation has to be
done high and dry. You can splice in partial frames using 12 to 1 scarfs but
it maybe easier to sister full frames. Best to sister in between old frames
not right next to a broken frame. Making jigs to either stem bend or
laminate frames is a bit easier than in the boat shaping. You'll notice that
the old steam bent frames break across the grain at the tight bend, this is
because in steaming the elongated wood cells that normally are aligned with
the grain, turn at right angels to the grain when in a sharp bend. This is
why laminating up thin strips may be a better way to go-----gary
.
question: Re: Rusty Pig Iron Ballast / damage to hull
Hi Gary, great website. As a first-time boat owner with a mammoth repair and restoration project underway your question and answer archive has been extremely useful.
I recently purchased a 47ft WW2 ex-admiralty pinasse to restore and convert into a houseboat for use on the norfolk broads in the UK and the inland waterways of France. She is carvel constructed with pitch pine planking.
She has approximately 2000kg of very heavily-rusted pig iron ballast distributed throughout the vessel - The ballast is made up of around 100 iron pigs, each weighing approx 20kg and has around 3mm to 8mm of flaking rust.
I need to remove the ballast to access the bilge for inspection, de-gunging and painting etc. I have so far removed 30 pigs, de-rusted with an angle grinder and rotary wire brush and applied a couple of coats of red oxide primer in preperation for a topcoat of exterior metal gloss, before replacing them in the hope of preventing new rust reforming. However I've since read that this is pointless as the iron will expand and contract slightly with seasonal temperature fluctuations, cracking the paint and allowing water to oxidise the iron.
Is this true?
The ballast has sat directly on top of the planking.
How detremental is the rusty ballast to the wooden hull frames and planking?
The planking under the pigs I've removed so far is in good order but I am dreading lifting out the other 70 or so..
What damage, if any, should I look for when removing the remaining ballast?
When I put them back in I'm going to build a lattice cradle so weight is ditributed over the ribs and the pigs are not sitting directly on the planks.Advice on this subject would be greatly appreciated.
I have many images if required..Many thanks for your help
Tom..
.
Tom;
Thanks for the Kudos on the site. The only time I have seen iron rust
effect wood is with deteriorating iron fastening which penetrate the wood
surface and facilitate moisture intrusion into the wood grain which causes
rot. Rust on the surface does no damage other than creating a mess. The iron
directly on the planks does little harm as long as the boat is in the water
but on dry-dock the weight pushing the planks away from the frames is not so
good. Your basket idea will transfer the load onto the frames which will
tend to concentrate the weight over a much smaller area and could produce
damaging new stresses to the hull. I would leave well enough alone and just
clean it up, do your painting of the bilge, and put them back as they were,
and no matter what you do to protect them oxygen will get to the iron and
cause rust. With older wooden hulls that have an established configuration
memory it is not wise to do anything that structurally alters stress loads.
Hope this helps----------------Gary
RIGGING 3
.
Hi Gary, we have another question for you. It concerns the angle of chain plate vs shroud.
My chainplate block is attached to the inboard side of the side planking as required by the plans of our Glen-L 15. When my chain plate is attached to the block it will be set at approx. a 30 degree angle (outboard) off of vertical. The angle of the shroud at the mast to the chain plate well be approx. 20 degrees of of vertical. I am using a toggle jaw to connect the shroud to the chain plate. Should I bend the chain plate to reduce the angle to maybe 0 degrees or vertical?
Thanks again...
.
Phil & Bernie;
Yes , it should be bent to the angle of the shroud, as I believe the picture shows.
With larger boats, with more masive chain plates, the angle is not so much an issue.--g
.
Hi Gary,
My name is Michael Barnes, and i obtained your e-mail address from a
link on the 'Hunter' boats web site. I need some advice and am not sure
if you can help me?
I am have recently purchased my first boat, a Hunter Europa 19' Sailing
cruiser. I seem to be having some problems with the rigging, i have
managed to get the mast into position and tensioned up most of the
standing rigging. I am having a dilema with the baby stays, they just
will not tension up, the Stainless rope is still quite slack even
though i have applied maximum tension!
Does all of the rigging have to be the same tension?
Also a little question which i have been pondering, what exactly do the
spreaders on the mast do???Theses questions may seem silly, but i am
only 20 years old and no-one will seem to take me seriously and i am
realy struggling so any help and advice would be much apprecaited.
Thanks
Mike
.
Mike:
Never be embarrassed about asking questions. Not all stays have to be
the same tension but the ones opposite the other like forestay and
backstay should be similar. The baby stays do not have to be real tight
for they will tighten up under sail. The spreaders act to spread the
load on the mast under sail to the hull. The best way to tune your mast
is to make sure the mast is straight both sitting at dockside and under
all points of sail. On a small boat such as yours where the stresses
are not huge, like on a racing machine, you have plenty of leeway to
experiment------good luck and have fun sailing---ask more questions
anytime-------gary
.
question: Gary: I haven't read your page in sometime, but it was/is packed with
grt info. I have a Garden 34' wood. ketch. I've remasted. 2 problems.
A slack triadic backstay, very (like 2-3" worth). Also, the main's boom: I'm unable to get adequated room for it to clear the bow-side of
the mizzen. A modification I did was to shorten by 1" the dolphin spike (due to crimping). Maybe I have the main's double lowers reversed. Any thoughts? Thanks from a newbie
.
Hi
Thanks for the kudos on the question pages. Unless you have changed anything drastically, sounds to me like you have a lack of rake problem. Most ketches have a light rake aft to both the main and the mizzen and usually the mizzen is raked a few degrees more than the main. This would account for both the lack of main boom clearance and the slack in the triadic. Hope this helps---g
~~~~~~~~~~~~~
.
question: will a strong bleach solution kill off spores .
regards
chris
.
Chris--------yes, bleach kills off some spores but not others, especially
some of the molds. TSP, trisodiumphosfate is a better choice, available at
paint and hardware stores--------------gary
.
question: In order to safeguard against rot in the bilge of my 1932 wood sloop what can you advise me to introduce into the bilge to offset fungus? People have told me to use antifreeze, for example. Is this a good idea? Are there better substances? Sam/Portland Or/1932 Phillip Rhodes sloop
.
Sam;
Nice boat. Yes antifreeze with glycol will prevent and kill rot but so
will salt water. I always kept salt water in the bilge but if you want a dry
bilge put some antifreeze in a garden sprayer and saturate the area you want
protected. Also try to keep any fresh water out of the bilge, rot fungus
thrives in moist dead air areas. Keep interior well ventilated----g
.
Thanks for your response. What strength should I make the antifreeze? Can I do this treatment often? Are there undesirable "side effects"? Sorry to be persistent. I am enjoying reading the various comments on your site, and benefiting too. Sam
.
SAM;
No problem, ask away. I use it full strength, it will even penetrate thru a painted surface. I don't know of any unintended consequences of using it but you probably would have trouble using fiberglass resin over it, but I've never tried. I would do it every year, especially if you have water sloshing thru the bilges which I can't imagine not happening in an older wood boat. Glad the question forum is useful to you--------gary
.
question: what kills dry rot before repair
.
ANTIFREEZE WITH GLYCOL
.
I was wondering at what point do you declare rot? and replace it
do you recommend epoxy impregnating?
and how do you feel about latex enamals? .... is there a paint that will let the wood breath ....i figured paint was to be a sealer
i am working on the hull and want to seal the exterior and maybe leave the interior of the hull bare....i would have liked to paint the bilge ...
Thanks for your time
Have a great day ; Rusty
.
Rusty;
My basic rot rule is if it is occurring in non structural cosmetic areas impregnating with penetrating epoxy(getrot) and filling is OK, but in structural areas, such as frames, planks, deck beams, carlins etc. etc. the bad areas must be replaced with new wood and replaced in such a way that structural integrity is maintained ie. if there is a bad spot in a plank, you don't just replace a few feet, you must replace enough to maintain stress integrity which may mean the whole plank. Also when one finds rot, it must be determined where the fresh water is coming from so it can be prevented.
Almost all paints, alkyd, oil and latex, allow the wood to breath, with the possible exception being epoxy paints. High gloss paints are harder and wear better but also show off minor flaws in the finish, you can get a dulling agent which will cut down on the shininess but maintains the hardness. Go ahead and paint the bilge, I suggest using a porch & floor enamel, very tough and available in hardware stores without the "marine" price.------- gary
.
.
question: can a sailboat, say a Cheoy Lee, presently being sailed in salt water, be successfully sailed in a fresh water lake and yet avoid dry rot, etc.? and if so, what steps need to be taken?
.
The source of most wood rot comes from fresh water rain that gets into small
dark places with no air circulation, but any fresh water, including lake
water, can produce the same results given the right environment. Rots
biggest enemy is fresh air circulation, so keep the boat well ventilated and
put some salt in the bilges which will kill any rot spores germinating in
that area. I'm assuming it's a wood boat but if not, the principle applies
to any wood areas on the boat------gary
.
question: Hi Gary,
I have a large area, about 16" around the frame of a window, where I have water damage. I have removed the damaged wood from the area including old filler. The window frame itself is still intact. The rot did go through to the salon for a small part of the area. Do you have a suggestion for speeding up drying of the area, some of the surrounding wood is wet but not rotten, and a good filler? I live in Toronto Ontario and it is cool and damp this time of year. The boat is scheduled for launch April 27.
Thank you for your help.
Steve
.
Steve;
It is most important that the area be thoroughly dry before you seal
it up, if not you could encourage more rot . Other than using a hair dryer
or heat gun there is little you can do to speed up drying out. You might
want to just duct tape the area until the weather warms up. Bondo now makes
a good marine filler. Glue in new wood where possible.------good luck--gary
.
question: hi gary, i have recently purchased a retired trawler which has been converted to a cruiser. most of the tibers are in good condition however i could never understand why the design of these boats precludes the maintenance of certain sections of timbers oweing to large fuel tanks and inaccessible areas. i have since discovered that i have some dry rotted timbers in these areas, but short of pulling out major components "like these fuel tanks" im at a loss as to how i can get in their to treat the wood. i have read on the net that "anti freez" or (radiator coolant) is apparently a little known but exeptional treatment for rot which if i could just confirm this would be a soloution for me as i could just spray the stuff at random in these areas with a common garden sprayer. so my question is can you confirm that coolant works? I also considered that if i set up a fan system and ran hose into these and other under floor areas where there is minimal circulation, could that be a solution to ventilating these areas which i have also read is a key factor in stopping these dry rot issues... your help is appreciated.... rick
.
RICK
You got it all right. Make sure the antifreeze has glycol, and anyway
you can get air circulation and some salt water sloshing around in those
areas the better off your boat will be.Also, any way you can, make sure
there is no serious structural damage already done from the rot. If you can
reach with a hammer, tap on the wood and hopefully hear a solid sound not a
thunk.----good luck--gary
.
thanks gary, just wanted to say how comforting it is to know that someone like you will take the time to
educate people as they enter the world of boating with often little knowledge of what there doing, but alas
nothing ventured nothing gained, i say!. where i have the boat moored is with other licensed fishing vessels
and asking these guys questions can often result in some strange looks like "what the hell are you doing
buying a boat that big if you dont kmow anything about it" but i have to say there not all like that, i have
been lucky to have a couple of guys crawl into some the spaces where i have some concerns and they all
they say the same thing......yeah mate you got a few rotten ribs there but shell be right mate, these
trawlers are built tough and shell outlive you dont worry about it too much...problem is i do worry about
it, maybe im just a bit fastidious but i figure why spend money on the top decks/living sections etc if
the bottom is falling away from under me.....you say that having salt water splashing around will help i would have thought that there should be no water in there at all? it can be confusing, some guys say all
wooden boats leak a bit and some that just cause there wood dont mean they should leak, they should be dry in
the bilge? i do have a couple of leaks from the decks when it rains and i am working on stopping that and
then ill get into spraying the antifreeze around and possibly some cpes epoxy when i feel i have it under
control. but i just wanted to confirm that the antifreeze is not just an old wives tales because its
pretty expensive stuff over here..i was talking to an old shipwright the other day in the pub and mentioned
it to him and he gruffly replied "what a load of rubbish" never heard of it, but i suspect thats why he
thinks its rubbish because hes never ventured outside what he was taught 40 years ago.... and probably
doesnt have the internet..lol i guess the other thing is with the ventilation issue,
like fire needs its three elements and once one is removed theres no fire, dry rot also needs its
elements and one of those is oxygen, if i ventilate the areas with hoses pumpming air in from the outside
arent i effectively feeding the rot one its elements? i guess it will be cool air and not humid air which
gives it the warmth it needs right?
.
Richard;
You will find with an older wooden boat you must learn to compromise and
having no worries or anxiety is impossible. The advice of your dock-mates is
right on but the guy in the bar is off, glycol in antifreeze is a wood
preserver and rot killer. Salt water kills rot whereas fresh water (rain)
carries the rot spores, some salt water in the bilges kills the spores
brought in by the rain leaking in. The old schooners had canvas bags filled
with salt stuffed under the deck to turn the fresh water rain to salt water,
similarly you can just put a salt block in the bilge. Rot spores thrive in
moist warm areas, fresh air circulation dries out the moisture and prevents
the spores from growing. You will get a lot of advice from a diverse group
of well intentioned people who have strong opinions but little experience.
Trust the ones who make a living keeping these beautiful old woodies
floating and have fun with yours. -----thanks for the kudos-----gary
.
question: My boyfriend and I have currently purchased a 73 41' CT Ketch. We have termites and much damage to some areas of the house as well as other structural areas, walls beams, etc. I am aware that I will be tearing out and replacing alot with new wood. When though and how do I decide that a good saturation with epoxy and maybe a fiberglass lay up will do the trick. And what do you think about 409 west system instead of caulk to seal the deck, around the gunnel way and house trim?
.
The basic repair rule is that if it's a structural repair, the affected area
is weakened, do it right and replace the damaged area but if the damage is
cosmetic you can get away with more surface repairs that are less intrusive.
Because epoxy is stiff and rather brittle it does not make a good caulking
or bedding material for it will crack and allow water penetration over time.
A more flexible product such as a polysulfide or dolphonite bedding compound
works the best for it stays flexible over time and maintains a water tight
seal even with the movement and stress typical on a sailboat. Good luck with
your new old boat and pay the extra bucks to get an exterminator and make
sure all those wood eating guests are gone----------gary
.
question: i have a 1989 regal sebring and im only keeping it for maybe another year or 2. the floor is soft in some spots but good in other parts is it poosible to just fiber glass over the soft parts for now please respond asap.
.
Nope, the soft spots probably indicate fresh water leakage that has caused
rot in the wood which will increase throughout the floor unless repaired
properly, ie. bad parts cut out and replaced.-----gary
.
question: Hi Gary, I just purchased a homemade 21-foot Glen-L (plywood/fiberglass) that has I soon found to have dry rot in it of about a square foot near the chine. I've been trying desperately to find a (cheap) solution to this problem; I've heard of chiseling out the rotten wood, placing a filling epoxy down and replacing with another piece of marine-grade plywood. What do you think?
.
Congratulations on your new old boat. On a plywood hull a patch is pretty easy---cut out the rotted area making sure you are into good wood, take a piece of 5/8 or 3/4 marine or cabinet grade ply and cut a piece that overlaps the edges of your hole a couple of inches. This is your backing block that is screwed and glued to the inboard side of the patch hole. Once that is in place install the plywood patch piece by gluing and screwing it to the backing block. Fill the edge seams with thickened epoxy or Bondo, and fiberglass over fairing it into the hull. Keep some salt in the bilges and keep the boat well ventilated, these will help in keeping out rot spores.--------gary
.
Gary,
I read your opinion of repairing wooden boats, and agree about making the proper repair in wooden boats.
My question us about a Glass boat with wooden frames and supports. Specifically the Keel Step. I have a 1980 Celestial Ketch. The main mast is aluminum an is approxdimately 61' tall. The boot around the mast was not properly maintained and water was allowed to infiltrate the oak wooden mast step beam. The beam is 10" wide,7" deep and 6' 6" long.
I now have to deal with soft rotten wood immediatly under the aluminum tabernackle. The rot runs about an 1.5" deep for most of the rot with some places going down to 2.5 inches. Structurally, the beam looks in tact.
I've read about using liquid apoxy to repair these things, but my preference would be to cut out most of the rot, fabricate an insert the width and depth of the rotten wood and mortace it into the existing beam.
Approximately 2.5" deep, 23" long and 10" wide. Most likely using epoxy and screws to bond it in place. Do you agree with this approach?
I am also interested in knowing the stresses on the mast step and the forces that it will have to take so that I can be sure my repair takes into account all of the stresses that will be encountered.
Thanks for considering my quesrion.
Lenny Damaso
.
Lenny;
Your fix is the right way to go and will be adequate for the stress involved which is mainly downward with some sideways torque. Smith and company makes an excellent hardwood epoxy glue---http://www.smithandcompany.org/------gary
.
question: I have a l957 17foot Chris Craft. It is constructed of plywood, one of the less expsensive ones. It has some dryrot in the transom and on the sides near next to the transom. Is it wise to just replace the dryrot or should I replace the whole section of wood the dryrot wood is in?
.
If the dry rot damage is structural rather than cosmetic, you must replace the wood. If not structural you can treat the area with penetrating epoxy and filler--check out www.rotdoctor.com----------gary
.
Hi Gary,
I was curious if you could tell me a little about dry rot.
if there is no water, where does it come from?
Are there bacteria in the wood just normally?
thanks,
Kevin
.
Kevin:
There are a variety of types of dry rot but the predominant ones are a
fungus. The spores are in the air. For the fungus to grow it needs a
consistent moisture of fresh water, salt water destroys it, and a
fairly warm temperature. It thrives in areas that becomes moist and
have no air circulation to dry the moisture. That is why good air
circulation to all parts of the boat is so important. Even in your
bulwarks you should have vents for the air to flow. Fiberglass, or any
wood covering that doesn't let the wood breathe, is only a rot
preventative as long as it adheres, as soon as it lifts from the wood
and yet stays intact it creates a perfect home for rot. If you box in a
structure without air circulation you can get condensation inside the
box which will give the rot spores the environment they need. The
principal with wood boats is, Keep freshwater out, Get fresh air in.
Dry rot is not dry but the aftermath of its effect on wood is a dry
crumbly structure. Although the rot spores are not in the lumber
itself, there are other types of fungus that are. This is why it is so
important that you use lumber that has been properly dried. air or
Kiln, because the drying kills the fungus. If you want more info. go to
www.rotdoctor.com. Although he is an epoxy nut, there is good
information.------------gary
.
Hi Gary,
So,........,, would you suggest that After my
bulwarks are complete and fiberglassed, that I punch some breathing
holes in them?
If so, would it be top and bottom ,...or ...???
What do you think?
kevin
.
sKevin:
Yes, to get the air circulating you need air vents at the top and
bottom, alternating every 6 feet or so along the inside face of the
bulwark. You can get small round metal vented covers that keep the
water out but let the air in. You also should have some drain holes at
deck level to the outside to clear any fresh water that works it's way
into the bulwark box. In actuality, most bulwarks are not completely
boxed in but rather have spaces built in for air circulation, and
drainage. To do it this way means you would have to give up the glass
from bulwark to the deck and make sure the deck around the protruding
ribs is well sealed, but in the long run you may have less problems.
Getting salt water to the wood guarantees no rot. Any enclosed sealed
area on a wooden boat will eventually have rot problems. Water is the
universal solvent so often it is best to accept that sooner or later it
will get to the wood. Knowing this, we should build structures that
guarantee air circulation.--------g
.
JUST BOUGHT AN OLDER EGG HARBOR (31' SEDAN EARLY 70'S), THE HULL IS FIBERGLASS - AND IN GOOD SHAPE BUT THE CABIN WAS MADE FROM 1" MAGHOGANY AND HAS ALOT OF ROT. I WANT TO LEAVE AS MUCH MATERIAL AS I CAN. MY PLAN IS TO STRIP ALL OF THE OLD PAINT SATURATE THE WOOD WITH ANTIFREEZE TO KILL ANY MOLD AND THEN USE THE WEST SYTEM ON THE WOOD STRUCTURE. MY PROBLEM IS THAT I DO NOT KNOW HOW MUCH WOOD TO REMOVE OR LEAVE. WHAT DO I LOOK FOR WHEN IT COMES TO REMOVING ROTTEN WOOD. THERE SEEMS TO BE ALOT OF ROT IN THE JOINT'S EVEN THOUGH THE REST OF THE WOOD IS SOLID. IF I LEAVE THIS TREAT WITH ANTIFREEZE AND WEST THEN FIR OUT THE INSIDE WITH 1/2" PLYWOOD FOR NAILING ON PANELING. WILL THESE PANELS STILL BE STRONG ENOUGH. YOU CAN REACH ME AT MTIPOLT2@AOL.COM THANKS
.
Treating rot with penetrating epoxy is ok for cosmetic stuff but anything structural must be replaced with good wood---g
.
sHi,
Got your name from the Philidelphia Wooden boat factory web site so
I thought I'd ask a question of you. I have some dryrot problems on my
1970
Sea Spirit, Taiwan built, home ported in Redwood City. I'm managing to
stay
on top of most of it but it's a constant effort. There is a shipwright
currently working on a Sea Spirit in South Bay Boat Works in Redwood
City
making major repairs to dryrotted areas in places where I have had
similar
problems. He has said that the interior of wooden boats should be
sprayed
with a borate solution which will kill the fungus and prevent dryrot
from
occuring. Beyond that he didn't know how to obtain the spray solution
but
he was convinced he has heard enough about it that he's sure it does the
job. Do you have any info on this or advice about it? I see you live on
your boat in the bay area, whereabout's?
Appreciate any help you can give me, my marine surveys give the
boat good marks, I want to keep it that way.
Thanks, steve
.
steve:
I know the maritime museum in SF uses or Borate solution, you could
contact them. Also regular antifreeze works well. But it seems you real
problem is a design flaw that is not allowing air circulation in those
areas that are rotting. I would correct this ASAP. Hope this is
helpful. I was living on a 36ft Ketch at Pier 39 but have since moved
to a seaside town in Maine, Rockland . The Bay area was just getting to
hectic and expensive.-------gary
.
Gary,
I have a circa1930s, wooden Oconto Cruiser. It is 14 ft. long and
was used as a row boat by the original owner. It was restored to
floating
condition and fitted with a 40hp Merc about 15 years ago. The boat was
passed down to me from my father who made the last restoration.
My problems are: dry rot in some areas along the keel, many gashes
along the water line and it is in great need of some new bottom paint.
Are there any products that I can use to get rid of the rot or firm
it up? What is the proper product to fill in the gashes? Is there a
bottom paint that will help stop the rot or slow it down?
Almost forgot...The inside board that runs the length of the boat
(i don't know what it is called) has a lot of rot near the bow. I was
thinking it might be better to replace it. Is there a supplier for parts
like that?
Any type of help or ideas would be great. This boat is my winter
project and is currently on saw horses in the garage. The winters in
Wisconsin are long and boring at times, not to mention really cold so I
am
itching to get started.
Thank you very much
Greg Reinke
.
Greg:
Nice project and kind of a family heirloom. Of course the fix of choice
with a wooden boat is to put in new wood where necessary, but for many
reasons this is not always possible. Where you have rot there is a
product called penetrating epoxy which impregnates the wood with a
resin that hardens and also kills the rot spores. There are also epoxy
fillers and putties used to fill dings and dents. The long board you
speak of is called the keelson and is structurally important to the
boat. If the rot is too deep into this you may have to cut out an area
and glue in a new piece, this is called a "dutchman". Because of the
boats age, I would strip the bottom, only the part that gets submerged,
down to bear wood and give it a coat of penetrating epoxy. This will
inhibit future rot which no paint can do. To become familiar with these
products and ask an expert how to use them go to www.rotdoctor.com.
Good luck and I hope your working on the boat inside.-----gary
.
I have a 1978 Checkmate Enhancer. I was getting it ready to go into
my boat
slip yesterday and noticed I have some mushy floor areas by the rear
seats.
After ripping up the carpet I was able to rip open a 6" square area by
hand.
I'm wondering if there is any way I can fix this cheaply so I can get a
few
more years out of this boat. I'd prefer not to replace the entire floor.
Are there any major problems that would arise if I were to put a
pressure
treated plywood flooring on top of the existing flooring? If I do this,
I
would at the new flooring with fiberglass and whatever else is
necessary.
Any help would be greatly appreciated.
.
Kieth;
I happened to be online. Yes, you can do that, just remember unless all
the rot is removed it will continue to get worse. A quick fix for now
is OK but down the line, especially if your going to sell the boat, you
will have to bite the bullet and fix it properly. You might delay the
rot a bit by soaking it with antifreeze before you cover it up.
Antifreeze kills the rot spores. Good luck----Gary
.
question: Our tahiti ketch was bult in 73 -76. We are now pulling
her out and cleaning the old paint off. We want to know what is the
best way to preserve the port orford cedar hull planks. Is an epoxy
penetrating sealer good for this wood? Do you think the wood needs
paint or a smith co. sealer? Does the wood need to breath and only seal
one side being the ouuter hull exposed to the water and weather?
Does ecapsilating the wood help preserve or damage?
Looking forward to your response and any helpful information you will
provide.
Thanks in advance
Astrida and Jack
Portland, OR
.
Astrida& Jack;
Nice boat. A boat traditionally built should be maintained with
traditional ways. Stay away from the high tech stuff, it has its place
in modern building techniques but not in preserving older wooden boats
still being used. Some will disagree with this but I haven't seen any
100 year old epoxied wood boats yet and I don't think I ever will. You
are right, the wood needs to breath which it can't do when covered with
plastic. To me, the best treatment is a good oil based paint. Plus salt
water is a natural wood preservative so artificial wood preservatives
are not necessary. If you do have suspected rot areas {caused by
trapped fresh water] saturate the wood with antifreeze, it is a great
and cheap rot killer. Feel free to ask more and enjoy that great
boat.------gary
.
Dear Gary,
I own a 1960 14 foot wooden runabout with a spot a dry rot I would like
to fix myself. This boat is not a ribbed boat, but formed with
laminated wood covered with lap. It's titled under Wolverine, but I'm
told it's also called a Wagemaker, built around the Grand Rapids,
Michigan area.
The dry rot spot is about 10" x 18".
I don't object to using an epoxy because the previous owner has glassed
part of the bottom already.
Is this the way I should go, or do you have any other information on
how to repair it with wood?
This is my first experience working on a wooden boat.
Any help in this matter would be greatly appreciated.
Thank you.
Gary Marzean
.
Gary;
Normally the rule in repairing wooden boat dry rot is ; If it is in a
structural member replace the wood if it is in a nonstructural area
epoxy is OK. Of course it also depends on how severe the dry rot is, if
you can pull it out with your fingers the wood is too far gone for an
epoxy quick fix but if the rot process hasn't progressed too far epoxy
will be OK. I can't tell you more without more details. For further
information on the epoxy fix for rot go
to----www.smithandcompany.org---
and-----www.rotdoctor.com-----------good luck----gary
.
question: Hi, I was reading your comments in FAQ and thought you may
be able to help me. I recently bought a little Hartley kit made ply
sailboat.
Lovely little thing that soemone has lovingly put hours into making and
I would like to look after it.
I am storing it in the garage as I am told that dry rot is a killer on
boats stored outside. I will be using it mainly in seawater but was
wondering what I should do after using it when I come home. Should I
hose it down with freshwater or just leave it ??
Obviously if I hose it down I will be putting it away damp (I can towel
it down as much as possible but nooks and crannies will still be
damp/wet at least over night). I beleive dry rot doesn't like seawater
so should I just wipe it down at the boatramp or ???
Would appreciate any advice. I live in Brisbane qld so the weather is
nice and warm here which I beleive also doesn't help.Am I worrying too
much ?? Is it only a prob in long term exposure to water.
Regards Craig
.
Craig;
Sounds like a nice little boat and it has a caring new owner. First,
rot fungus only lives in freshwater, saltwater kills it. That is why
the old schooners would keep canvas bags full of salt up under the deck
so when the deck leaked with rain water it would become salt water.
Good idea to keep a small block of salt in the bilge as well. Fresh
water trapped in areas where there is no air circulation is the perfect
rot environment. Next to salt, air circulation is the next best rot
preventative. Never store a wood boat with a tight cover. Also with a
plywood boat, rot normally occurs in the solid wood supporting timber
for the plywood with its thin layers and glue is not the preferred
victim for the rot spores. With plywood you have to make sure all the
edges are well sealed for this is where moisture can enter and cause
delamination of the ply
layers. If you should come across any areas where rot has begun,
antifreeze is an excellent rot killer and wood
preservative---------------Enjoy your boat--------ask questions
anytime------ Check out the web page dialogues with an Aussie in the
question section of the mast mate site. Warwick is in Brisbane as
well---------gary
.
question: I have dry rot around the holes
through the transom. I have drilled to check that it has not spread.
What I want to do is stabise what is there (if indeed it is dry rot)
and then epoxy the areas. I am concerned that some proprietory products
may not be compatible with the epoxy. What can you suggest to put in
the holes before I epoxy those sites.
John Woudwyk
.
John:
If metal went through the holes and your boat is in a salt water
environment, what you have maybe wood deterioration from electrolysis,
but if it is in an area where fresh water could seep in, then it is
probably dry rot. Both are treated pretty much the same but with
electrolysis damage you don't have to worry about the rot spreading.
For either ,Penetrating epoxy "getrot" works well if you saturate the
area before epxying also, if it is rot, glycerine based antifreeze
works well to kill the rot. Check with www.rotdoctor.com. good
luck-----gary
.
question: Does air circulation have an effect on bacterial growth
.
Hi;
Actually air circulation has a deleterious
effect on the environment that is conducive for bacterial and fungal
growth. These organism like a damp consistent moderate temperature
environment, air circulation discourages such conditions. This is why
air circulation is so important on a boat, especially a wooden
boat------gary
.
Gary,thankyou for answering. The area in question is covered with a
vinyl mat, the rotting is not in an area where you walk but if if gets
any bigger it will be. The deck is made of plywood. I would have to
remove the bench seat to see what it is mounted on and how big and how
thick the plywood is.the section of rot is about 6" wide and 12"
long.When you press on it its soft to the touch. It's not covered over
with fiberglass. Thanks for your help.
Sincerely Joe
.
Joe:
That vinyl matte is part of the problem,
it traps moisture and doesn't allow air in, so it creates a perfect
environment for rot. You can't really use gitrot, an epoxy product for
hardening rotten wood, because it won't effectively saturate plywood.
So really the only option is to replace the rotted area. If there are
support members near by you can just cut back to them and replace the
ply. If there is nothing near to attach a new piece to and if you can
get underneath put in a backing piece of ply and then fill in the cut
out with ply as well. The best way to prevent rot is good air
circulation. Good luck----gary
.
question: I have a 40 ft dickerson cutter, stripplanked... I just
found rot in the keelson, several areas spaning 2 ft the worst are 6
inches long by 3-4 inches deep and 2inches tall am I screwed or do I
have options? help.
shawn
.
Shawn;
The good news is that you are not screwed, the bad news is you have to figure out why the rot occurred and stop the source . The keelson is the inside of the boat part of the keel, a fairly massive timber, so the amount of rot you describe is not a structural problem. You need to chisel out the rotted wood and replace with epoxied in dutchman (fitted pieces of wood).. You should always keep salt water in the bilge, it will kill the rot spores. If there is no indication that fresh water caused the problem check if the rot has occurred around fastening like bolts or drift bolts. If so , this is caused by electrolysis, the same fix for the damage , but a different fix to solve the problem, usually the addition of some strategically placed zincs. Hope this helps, ask more as needed--------gary
.
question: Hello Gary,
I am a transplanted limey here in Florida rebuilding a rotten plywood
trimaran.1, Have you had experience with clear penetrating epoxy as a
way of restoring dry rotted wood to strength and 2, Have you heard of
antifreeze being used as a killer of mildew? A couple of odd ones I
know, (but that's me and the wife for ya!)
Best Regards,
Patrick
.
Patrick;
Hell of a job in that tropical environment. I suggest you read the
sections on Rot and Fiberglass Over Wood in the questions part of my
website. But, basically, penetrating epoxy should not be used where
structural integrity is an issue, plus the effectiveness of the epoxy
depends on its penetration and with plywood the penetration is limited
to the first ply-layer. Much better to replace the wood and only use
the P epoxy in cosmetic areas. Use TSP, available in hardware stores,
to get rit of mold, but it is true that antifreeze is a Rot killer and
can be used to saturate suspect rot areas even if they are painted
over. Good luck with your project and feel free to ask more as
needed-------------gary
.
Hi,
We are repairing a 42 foot 1968 Wood Trojan.
The previous owner tore open a small hole in the back port corner (2
inches
high 4 inches long). This caused some water damage to the transom among
other places.
There is a section of the transom about 25 inches square that is half
rotted
away on the inside. The outside looks fine. Do I need to replace this
rotted wood entirely with new wood by cutting it out and putting in a
new
piece or can I repair it by glueing a piece of new wood on the inside to
replace the rotted wood (therefore the old wood plus the new wood would
be
the thickness of the transom)?
If you want I can send you some pictures of the repair area.
Please ask if you have questions. I am having fun with the repairs but
describing them can be tricky.
Thanks.---Kevin
.
Kevin;
Nice boat and the fact you are having fun with the repairs shows you
are good steward for a wooden boat. Pictures would help, but normally
their is an outer planking and an inner planking of the transom and
they should not be glued together, for ease of possible repair but you
could cut out the rot and fit in another piece and then put a larger
backing piece overlapping the edges. It also depends if the inner wood
is solid or plywood. You should also treat the surrounding area with
some antifreeze to kill any remaining rot spores-------If the transom
is only one plank thick with no inner planking you can fix it
cosmetically for now but eventually since it is a structural you will
have to replace the plank------gary
.
morning
thanks for the article on rot - it was a great read
just wondering...I found a 8 inch by 8 inch patch on the bottom of the
internal hull which seems to be a sandpaper like substance - when I
pull on the edges of the patch it seems to be firmly in place
also on the boat there are at least 2 patches made out of plywood -
these
are screwed into the internal hull and sealed with some kind of sealant
-
these also seem to be firmly in place
i have NO idea if these patches are leaking as the boat is drydocked
but I do not recall seeing them leak when the boat was in the water and
being
surveyed before we bought it
should I take patches like this off and reseal them or leave them as is
and
fix them if they ever leak/break?
.
Kevin;
The latter, don't fix what ain't broke. Maybe down the line you can
redo them but for now get the boat floating so you can enjoy
it-----------g
.
question: I own a 35' 1964 Owens which I purchased around four years ago. I had the botom repainted and some rot spots fixed around two years ago but this year I kept smelling a fishy odour and I have just found that there is some white fungus which has caused some rot below the v berth. I suppose I have two questions, one what do i do to kill the rot/fungus, two what can i do to stop this from taking off again. The boat is in a freshwater lake. in your questions and answers sheet you suggested salt in the bilge if so what type of salt? and do you just throw it in? and how much.
Yours depressed, Ive spent so much time, effort and money on this boat to get it running and now I have visions of thousands to get the hull fixed yet again within two years.
Martin
.
Martin;
Relax, no big bucks or much hassle involved. What I would do is to get your hands on a garden pressure sprayer, any hardware store sells them, and mix up a salt water mixture, like 3 cups of salt per 5 gallons of water, and spray it all around your bilges, get in all the nooks and crannies. The mixture will kill any mold or fungus and keep it from returning. If the wood has been softened where the fungus was, saturate it with some penetrating epoxy. You should repeat this process a couple times of year and most importantly make sure you have good fresh air circulating throughout the boat, this prevents the stagnant moist environment mold and rot need to grow in . If you always have a bit of water in the bilges lay a small salt block in there or occasionally throw in some salt, any salt, table,epson, sea salt, all will do the trick-----enjoy your boat------g
.
~~~~~~~~~~~~~~~~~~~~~~
.
question: Gary im joining two peices of white oak for a rudder out of 2-1/2in stock,what is the best method of bonding together,wood glue,epoxy or 3m 5200 Ross Mn.
.
Ross
That's a pretty hefty rudder. Unfortunately white oak does not take
to glue or epoxy very well, so whatever you use, either is ok including
5200, I would recommend you use bolts as well. Personally, unless it is for
an historical vessel, I use layers of 3/4 in cabinet grade ply sandwiched
and screwed with matt fiberglass saturated with epoxy resin in between each
layer, and if it's an outboard rudder, save the oak for cheek pieces at the
top. The sandwiched ply is relatively light and very strong and if glassed
over is impervious to rot and worms which oak is not. So, that is my
prejudice but you go with what works for you.----gary
.
Hello Gary
I recently bought a well-used 21-ft Clipper Marine sloop with a
transom-mounted wooden rudder/tiller.
The wood is very dense/heavy but I'm not knowledgeable enough to
determine the type. Due to age and apparent lack of upkeep, the bottom
of the rudder has a few cracks between 3" and 6" in length. The wood
has swelled making the bases of the cracks from 1/8" to 1/4" wide.
Further up the rudder, there are steel straps that the pintles are
fastened to. These straps which wrap around both sides of the rudder
are fastened with through bolts. At each hole there are cracks
radiating out from under the straps.
Would you be willing to suggest a method of repair. Knowing very little
about woodworking, I'm afraid to experiment and then end up having to
search for a new rudder!
Thanks for any help you can offer.
Scott Jones
.
Scott:
Without seeing the rudder it is difficult for me to determine the
severity of the problem. Your description of the wood makes it sound
like oak or some other type of hardwood which is somewhat unusual for
most rudders for these type of boats are either all fiberglass or a
combination of fiberglass and wood. I don't think there is much you can
do to "repair" your existing rudder. I would tend to make a new one out
of two pieces of marine plywood screwed and glued together and then
fiberglassed.It's thickness should be the same as the old one so the
pintols fit properly.For this application plywood is much stronger then
a solid piece of wood. Use the old rudder as a template for the new
one. Ask more questions as needed.---------gary
.
Thank you so much for being online to help.
I purchased a fiberglass sailboat with a mahogony rudder. The bottom
part of the rudder has been in the water for the past 15 years. Needless
to say, it is rotten and needs to be replaced. My question is in
regards to the shape of the rudder. This rudder is flat on one side and
shaped only on one side. I had considered puttting a fiberglass rudder
on the boat, but a friend of mine who works with wood talked me into
building a new rudder out of mahogony. My concern is that he "wing"
shape of the rudder cause a "lifting" pressue as it moves through the
water. Shoud I just duplicate the shape of the rudder, or should I go
ahead and tapper the other side?
The boat is an American Mariner that was built in 1976. I purchased the
boat from the original owner so I know the rudder is original from he
manufacturer.
Again, thank you for any assistance you can give.
Louis Pomaro, Grapevine, TX
.
Louis:
Usually rudders are beveled on both sides not so much for aerodynamics
but in order to have more heft at the rudder shaft. Why your original
is shaped only on one side I cannot say but I don't think it is some
kind of design innovation or improvement. If the new rudder is made of
solid wood it should have some peened bronze rods inserted fore to aft
to prevent splitting. Good luck and I hope this is helpful. Feel free
to ask more.------gary
.
question: Hi Gary
After reading,"how to do repaires" I'm sure that I came to the right
guy. I bought and old O'Day 25 CB and the rudder has a large bulge on
the starboard side. The rudder was out in the weather so I guess rain
got into the laminate. I drilled some holes about 3/32" in the side,
the drill went down about a 1/4 of and inch and then droped into a
cavities. I flip the rudder over and water came out, I let it drain for
a day and then left it in the sun for a week,with the Starboard side
up, we had a good week of hot dry weather and for some unknow reason
the "Bulge" flatten out to normal. Now I don't know what to do, I don't
think I can pump in some epoxy, the cavitie is gone. I just don't want
this rudder to snap if I left it alone. I was thinking to cut two
slots, and put in ReBar rods and fill and glass over it. Hope you can
help. thanks Joe
.
Joe:
Thanks for the compliment but without greater knowledge of how the
rudder is constructed and what filler they used, I can't be of much
kelp. I do know that many cored fiberglass rudders do get water in them
and this by itself causes little problem but over time its presence
could badly corrode and weaken any interior metal support. I don't
think your reinforcing idea would do much good. I would try to figure
out how the water got in there, maybe around the shaft, caulk it up and
epoxy over the holes you drilled and see what happens. Also, I am sure
other Oday owners have had similar problems so I suggest you go to
--www.odayowners.com--- and ask for their advice as well. Good
luck-------gary
.
question: Recently I purchased a 40' Maryland deadrise style workboat
on the Chesapeake Bay. Built in 1938. Its in good shape and was used
everyday as a workboat. Now I want to keep this piece of history and
use it as a fishing / cruising boat. Many old timers say I should spray
the wood inside the hull with a product like Cuprinol to prevent rot.
The boat has a small cabin that was used for storage and I want to
eventually clean and built some bunks inside. Can I apply the Cuprinol
and still use the interior safely as sleeping area ?
What are your recommendations for an interior preservative? The planks
are cedar and frames are white oak. Interior hull surfaces are
unfinished . The outside of the hull is painted wood. I want to keep
the boat as original as possible. I love wood !
Mike
.
Mike;
Sounds like a great boat, send a picture
when you have one. Built in 1938 and still doing OK so I wouldn't mess
with any preservative, just make sure you maintain the good fresh air
circulation it no doubt has had all these years. Rot forms in areas
made damp by fresh water { leaks or condensation} without air
circulation. Also keep some salt in the bilges and often soak down the
boat with salt water which kills fungus spores. If you run into some
areas that have some rot, spray down with antifreeze, glycol kills rot
and actually will penetrate paint to do so. Enjoy your new old
boat-------gary
.
Thanks !
Your site and letters and advice have been a great inspiration to me .
Your right the boat was always open and no cabin door was there. Air
could flow everywhere. The boat does leak on the outside chine logs
around the engine area. I will have the boat pulled in June. I have
read many of your letters about calking.
Im not sure what we will find when we pull it out. Im lucky that the
boat yard I am at has a lot of wood boats around. At least some
knowledgeable people work there. I do appreciate your opinions. I will
keep you up to date on progress.
Mike
.
Mike:
OK, keep me up to date and feel free to
ask questions as needed. It is good you have some old timers around,
just listen to those who do or did not to those who pontificate without
substance of which there will be many------------gary
.
SHORT STEP MAST MATE 2
.
question: I bought a used MastMate. When i went to use it, I found that my legs are way too short. Can you resew it and add steps at about half the distance between steps?If so, how much will it cost?Thanks!!
.
Sorry, no way to resew one. We do sell one with 14in between steps but it is quite costly. I find that 90% of the people who have difficulty with the distance between the steps is do to one of two reason, one, they are not keeping their body straight with their hands head high around the mast or their pants are too tight. Give it another try and make sure your butt is not sticking out away from the mast, you can't lift your legs that way. If you still have no luck you could trade it in for some money off on a new short step model. Bear in mind, the short step is $12 a foot.--------gary
.
I have acquired my first sailboat, an S2 8.5A, and have been
pondering
ways to access the masthead for maintenance and repairs (mast height 41"
above WL...haven't measrued using the info on your web site yet).
I am comparing your "Mastmate" and a product called the "Topclimber" by
ATN, Inc., that I saw at Strictly Sail Chicago recently. Have you had
any
comparisons between these two, or any thoughts? Also, at a vertically
challenged 4'10", I'm concerned about the rung spacing for the
Mastmate. Did
I read correctly that there is a custom version with closer spacing,
and if
so, could you give me and idea of the additional cost? Thanks much for
your
time!
Sincerely,
Sheila Marie
.
Shelia;
I appreciate your interest in the Mast Mate. I have not tried the
system you speak of nor are there comparisons, however I am familiar
with it. Using the mast mate you are aligned with and attached to the
mast and holding onto it as you climb, with the topclimber you are
basically free airing on a single line. I think for the average person
the Mast Mate would be easier and safer, but for the experienced
climber in good physical condition the topclimber may be just fine.
Personally, I get exhausted just looking at it. Yes, we do have a short
step, 14 inch step separation, at $12 a foot, but even though you have
a short inseam you might find the regular model doable. Several
customers of your stature do just fine. What I suggest, since the
product is fully guaranteed, buy the regular model and if it doesn't
workout trade it in toward the short step model. I hope this is helpful
but if you wish to discuss it further give me a call at
800-548-0436.-----------Gary
.
Gary;Your info is most helpful. Having tried the Top-Climber at
Strictly Sail
Chicago for an 8 foot "climb", I'm inclined to agree with your
assessment!
It would seem easier to climb with my arms firmly around my mast, and
for me
would likely feel more secure. I appreciate the advice on sizes, and if
I
decide to order, will start sith the regular version as suggested.
Again, thanks much for the info and quick response.
Sincerely,
Sheila Marie
.
STEAM BOX & STEAMING 3
.
Gary, I hope you can help me out in constructing a steam box. I must
repair some frames and need some plans, or a leg up upon this task. Am
not willing to laminate with west system or even a web site to help me
out ....thank you for your help..........garth
.
Garth;
The simplest steam box is to use a piece of stove pipe, the kind used
for wood stoves with lengths that fit together. Put a cap or wood plug
in one end, put a hose from you steam source, a metal type gas can
works well, into the other. Put your material in and stuff rags into
the hose end and walla, you have a steam box. You can get a propane
burner for a heat source. The most primitive way I have done it is to
use a 55gallon oil drum, fill it with water, light a fire under it and
boil the wood. Works OK but turns the oak very black. Good
luck----------gary
.
I am installing a replacement deck hand rail. It is a 12 feet long
flat section mounted on supports at approximately 15" on center. The
teak is 3/4" tall and 1 1/4" wide with edges eased to 1/4" radius. The
curve has a spring of better than a foot.
Will teak take to steaming? or should it just be 'cold' formed and
clamped? I have tried cold bending it an noticed considerable
resistance to taking the curve particularly since it is bending across
the wide dimension.
The original had one long and one short screw at each support. There is
no ability to through bolt it.
This is on a 'classic' Wauquiez Hood 38 - plastic boat..
.
Chris:
Usually, if one had the option, when choosing the teak for the rail you
would select a wide board that had a natural curve with complimentary
grain, but in today's world this is usually not an option. Since your
bend is in the wide part and your fastening points are far apart, I
would set up some kind of jig where you could prebend it to the
approximate shape. Securing one end and using a heat gun to heat up the
wood as you bend it to shape should work, if that didn't work you could
steam the piece but be careful the outside edge does not split,
clamping a piece of flat steel to the edge would deter this. Since teak
has so much natural oil, the heat gun method should work. Last option
would be to laminate up 2 thinner pieces. Hope this helps, patience and
persistence wins out------gary
.
question: Hi Gary Im preparing to lay up the garboard strake on a clinker style boat,the strake is fitted and clamped in place but there is considerable tension.Will the board retain this memory after being fastened when boat is finished and create stress and cracks;or is not steaming an air dried strake common practise if it can be twisted into place without it. Ross Mn.
.
Ross;
Usually one only steams green lumber which has a fairly high water content,
dried lumber tends to get more brittle from steaming. With a cold bend you
get greater strength for you are not changing the cell configuration which
happens with steaming. If you can fit the garboard cold and it doesn't split
or check in the first 24hrs, your OK. The grain pattern of the wood will
determine its ability to take a particular shape and maintain it with
integrity.------gary
.
SPLINES 1
.
Dear Sir, I have a 30' yacht built in 1962, construction is oregon hull, splined above the waterline and caulked below. My challenge is this, the topsides continually show some cracks along the splined seams, how do I prevent this. Can I replace a portion of the spline? or should I just remove it with a router and fill with epoxy? Currently I have just been filling the cracks with Stopping but that lasts only for a few months, the boat is kept in Queensland Australia and the summer is sub tropical. Any ideas you may have would be much appreciated. Just so you know I bought her in 1974 sold her in 1976 and bought her back in 1978. I'm passionate about her.
.
The Fords;
It sounds as if the glue is letting go on your splines, plus the
contraction and expansion of your planks is adding to the problem.
Splined topsides do best in colder climates where wood contraction and
expansion is minimal, but even these begin to crack as the boat ages.
You have 3 choices. Router out the old splines and epoxy in new ones
made from a soft wood, like pine, so they will stay swollen.Two, take
out the splines and bevel the seam to accept regular cotton caulking.
Three, live with it and keep filling the cracks as they occur with a
flexible caulking. Do not take out the splines and replace with epoxy,
this would make the situation much worse. Also much of your problem
could be eliminated if you went sailing more and kept the topsides wet.
I hope this helps-------------------gary
STERN BEARING & STUFFING BOX 7
question: I am the original owner of a 1947 Gar Wood 16' runabout boat. I have a small leak by the propeller shaft. Maybe the packing needs replacing. Is that a big job.
.
Hi
Nice boat. There are only two places for leaks where the shaft enters the
boat, the shaft log or the stuffing box. If it is the stuffing box you
should be able to see it dripping, it should drip about one drop every few
seconds when the shaft is turning for this lubricates the shaft but if it
leaks while the shaft is still then the stuffing box has to be tightened or
it needs new stuffing (see
http://mastmate.com/P-Z.html#Anchor-STUFFIN-54676 ) . The shaft log is the
metal piece the stuffing box is attached to, sometimes with a section of
rubber hose in between the two. As part of the shaft log there is a flat
metal plate that is screwed or through bolter to the keelson. When installed
this plate is bedded against the hull with a caulking of some kind and over
many years this caulk can harden and crack and allow leakage into the boat.
If this is the case the fix requires the pulling of the shaft so the shaft
log can be removed and reinstalled with new bedding caulk, once this is done
and since the new positioning of the shaft log may be slightly different
then what it was, you must check the engine alignment to the shaft.
Hopefully it is the stuffing box which can be fixed fairly easy but if it is
the shaft log you may want to get a professional to do the job. Best of luck
and ask more if needed---gary
.
Thank you so much for your help. I am a 76 year old woman that got the boat
when I was 15 years old. When my 2 older brothers came home from WWII, my
Dad bought them each a car, and I was too young to drive. He let me choose
between waiting until I was 16, and getting a car, or getting a boat now,
and I said "boat now". She still takes me water skiing on Huntington Lake
in California in the summer. It sounds like the stuffing box needs to be
replaced. When I bailed out all of the water and sponged it almost dry, I
could see water coming in very slowly from under the shaft. The bilge pump
takes care of it, but after 5 or so days without a run on the lake, she
won't start, bilge pump still works. Someone has to get the extra charged
battery we keep under the cabin and put it in, recharge the dead battery and
she starts right up. Too heavy for me to do. She is a beautiful boat, 68
years old now and our children and grandchildren all love to take her out.
I'll get someone to fix her over the winter. We are at 7,000 feet and
snowed in over the winter, she goes home to Fresno, CA for a well deserved
rest. Thank you again Jodell Ryan, I'll send a photo of her.
.
Thank you gary, about the caulking you have
definatly put my mind a little more at ease. Also I don't mean to be a
pest, but you are one of the more knowlegable sources around, I need to
restuff my prop, i think? It has a little play when I jiggle it from
the outside. Bearing, or stuffing, do I actually need to remove the
prop shaft,? ( I was leaking a little the weeks before I hauled out)
Thanks again
Joe
.
Joe:
No bother, I like the questions. No, you
do not have to pull the shaft and yes it is a good idea to change the
stuffing while you are hauled out. I could run you through the
procedure but a while ago I copied a set of instructions which is more
than adequate. In this particular case the boat was in the water but
all will apply to you other than the water rushing in. If you have
questions after reading it, please ask-------g
"A conventional stuffing box acts exactly like the faucet valve on your
sink. It has to turn in an environment where water under pressure wants
to leak along the shaft. The packing nut on both a stuffing box and a
valve stem cranks down on a base, squishing the packing material inside
against the shaft. When either begin to drip excessively, you tighten
down some more. Eventually, you need to change the packing because it's
all "squished" tight.
Stuffing box packing is pretty robust stuff, made of waxed teflon or
flax, generally woven in a square section. You buy it at marine stores
in packages sufficient to seal one stuffing box.
When you arrive at the point where tightening no longer works to stop
the drip, it's time to change the packing. It's not rocket science, it
doesn't cost much, and you can do the job without hauling the boat. You
will need a minimum of tools: good lighting. a pair of large wrenches,
some needle-nose pliers (preferably right-angle) a piece of stiff wire,
a razor knife, and a measuring device (tape, ruler, or calipers). You
will be working on your knees, possibly in an uncomfortable position,
so make the necessary accommodations.
Expose the stuffing box, and get your tools arranged nearby. The
packing nut is directly held tight by a locking nut, located aft of the
packing nut. If the stuffing box is dirty, it may appear to be one big
nut. Place a large wrench on each, and loosen the lock nut from the
packing nut, then back the lock nut off as far as you can (thereby
cleaning the threads on the base). Next, back the packing nut towards
the engine, away from the locking nut. WHOA!!! Look at all that water
rushing into the bilge! Don't worry, you have a bilge pump, and it
takes a lot of water to sink the boat. Slide the packing nut back along
the prop shaft so that you can look at its interior. You will see a
space between the shaft and the threaded portion of the packing nut.
Measure this, if you can. If you can't estimate it. Then tighten the
packing nut back on the base until the flood tapers down to a less
terrifying stream. Go to the store and purchase a package of packing of
the size you measured (or buy the most reasonable sizes according to
your estimate). You can even do this ahead of time by telling the
salesperson your prop shaft diameter and (if you know it) stuffing box
manufacturer.
You're back now, on your knees, admiring the stream of water entering
the boat. Wrap the length of packing material around the propshaft. You
will probably have at least three full wraps, plus some extra. Keeping
the wrap as tight as possible, run the razor knife along the length of
the shaft, cutting all the strands. Remove the pieces, keeping the
three best ones nearby. Once more, remove the packing nut, admire the
pressure of the cold seawater flowing in, and begin to remove the old
packing from the inside of the packing nut.
This is the most difficult part now, but it gets much easier in a
couple minutes. Using wire, needle-nose pliers, or, if you have access
to one, a cork-screw looking tool mounted on a spring with a
tee-handle, remove the pieces of old, squished packing. Get it all out,
then scrape around inside the packing nut to confirm everything is
clean inside. Place the three new rings of packing around the shaft
between the base and the packing nut. Gently ease each ring into the
packing nut space between the shaft and the thread. Be sure that the
cut section of the packing material is staggered with respect to its
adjoining piece (much like piston rings in an engine. When it's all
inside the packing nut, gently slide the packing nut onto the threads
of the base and begin to screw down until the leak stops.
Stuffing boxes are dynamic, meaning that they require regular
adjustment. This means that the thing is going to start leaking as soon
as the shaft begins to turn. It's supposed to, thereby keeping the
shaft lubricated with seawater and cool when turning. So, the dynamic
is this: Stop tightening JUST as the drip stops. Don't crank down as
hard as you can. Fire up the engine, make sure the spring lines to the
dock are secured, and put the boat in forward gear, slowly. Water will
begin to drip through the packing nut. Gently tighten the packing nut
until the drip rate is about one drip per second. Increase the RPM t
cruising speed, and if necessary, tighten again to the one-drip rate.
Now, shut the engine down and watch the shaft. If you have adjusted it
sufficiently, the friction of the shaft against the packing material
will now be cooled by the leaking seawater to the point where the wax
congeals, STOPPING THE DRIPS! It's a dynamic because you sometimes need
to play with the tightening a few times to get this point. Voila! The
shaft drips underway and seals when it stops..... until, one day, you
notice that the drips don't stop at the end of use. That just means
that you need to tighten down the packing nut once again, gently, as
before. Oh, lest you forget, after you get the adjustment correct, then
tighten the lock nut against the packing nut to keep that level of
tension.
Stuffing boxes are simple to use and to maintain. Lots of folks get
intimidated by them and switch to more expensive packing-free stuffing
boxes. Or, sometimes, naughty builders install them in places that
normal humans can't work on them. There is a special place in Hell for
these builders. Then you might consider the other form of stuffing box.
Keep a spare length of packing in the tool box for an eventual change,
but it shouldn't be necessary for several years"
.
My 27' 1967 Hodgdon Buggy Top Downeast Design with Volvo 151 AQ has been pulled for the season in Newcastle, Maine and I do believe I have found the source for the leak that has driven the bilge to come on every ten minutes like clockwork (maybe this is why water clocks were so accurate?). The four bolts holding the shaft and cutlass bearing in position all rotate freely and 1" of play is available side to side up and down. The bolts have to come out and new ones installed right? What would these bolts be bedded in at their terminus in the deadwood? What will I see when I pull the four (1 over 1 on each side of the after keel) 1' bungs at points where I believe the after keel bolts end? This is the time to make a repair of value so what else should I consider (she already wears spurs)? Should I send the prop off for reconditioning (its seems fine but not smooth)? Replies welcome to gjwalsh@aol.com Thanks, Graham
.
Graham:
Nice boat. First you must understand how the shaft parts fit together.
On the outside you have the cutlass bearing and housing bolted to the
deadwood with lag bolts. Then you have the shaft log, the hollow area
in the deadwood which the shaft goes through. Usually this log is lined
with a bronze pipe that screws into the cutlass bearing housing and on
the inside to a metal plate attached to a piece of rubber hose with a
stuffing box on the end that keeps the water from coming in around the
shaft. It is a closed system, keeping the water from coming in the
boat. The stuffing box is a packing gland that surrounds the shaft
compacting the packing around the shaft. This gland can be tightened to
control any leakage, but since the water lubricates the shaft when it
is turning, you should have a drop every few seconds coming through the
gland into the boat when underway. Now if you have a leak, the water is
either coming through a loose packing gland, which can simply be
tightened or the packing changed if necessary, or it is coming in
around or through the pipe in the shaft log. Since your cutlass bearing
flange is loose the water is probably coming in around it and around
the outside of the pipe working its way into the boat. First remove the
prop, then remove the four lag bolts, unscrew the flange from the pipe,
sometimes there is a lead pipe that is not screwed to the flange so you
won't have to unscrew it. Take the flange to a machine shop or boat
yard and have the cutlass bearing replaced. Reattach the flange,
bedding it in bedding compound [Interlux or roofing patch tar works
well}, with new lag bolts (usually bronze}. Make sure the shaft is
centered and turns evenly. I hope this helps more than it confuses.
Feel free to ask more. Good luck-------gary
.
Gary,
Thanks note way back when on the cuttlas bearing. Now it is time to
begin and I need a bit more advice.
What tools/procedures to remove the (?) cap bolt on the end of the
shaft? It looks like this was/is where the cotter pin was but it is no
longer there. Just a deep slotted groove, very mildly corroded (?). I
take it this should screw into and out of the end of the shaft and then
one can remove the two shaft / prop nuts not sure of the size. Will
measure the nuts and use open ended wrenches big enough to not marr the
nuts.
Also have to remove the SPURS andthe slotted prop key to be able to
pull the prop. More than likely, ya think, I will need a prop puller
tool?
Once all of this is free the next step is to facilitae shaft log and
bearing removal.
Going to have to address the 4 after keel (lag) bolts, they are loose
in a side to side fashion. Tips here?
I considered having Riverside do the work but I need to be brave and
learn. Also there is the cost factor of labor. I will have the work
inspected and a new bilge pump in case.
As you canGraham
.
Graham
Nice to hear from you again. Nice PICS and write-up on your boat. If
there is a cap nut screwed onto the end of the shaft it might be what
is left from a shaft zinc. It should come off easily as should the 2
shaft nuts after you remove the cotter pin. You will need 2 wrenches,
one to hold the lock nut and one to turn the other. Pulling the prop
will probably need a prop puller although you could try applying heat
and tapping on it. The bearing itself is attached with the four lag
bolts you speak of. Remove them and if the bearing doesn't pry right
off it may be screwed onto a shaft log pipe. If so unscrew it. Give it
to the yard to press in a new bearing. If you haven't had any leaks
from the shaft log itself, leave well enough alone. Since The lag
screws were not seating properly, you should epoxy in some dowel plugs
and redrill the holes. Do not redrill until you have the new bearing in
place and properly aligned. After you finish this process you may have
to realign the engine to the shaft. Below I have described the removal
of the shaft engine flange in case you have to remove the shaft. Keep
asking questions as needed and my hat is off to you for doing it
yourself-------gary
.
On the inside, unscrew the tightening nut on your stuffing box. Now,
for the knuckle breaker, separating the shaft from the flange that
bolts to the engine. Invariably this is a pain in the butt. Undo the
locking screw on the flange. Undo the flange nuts attaching the shaft
flange to the transmission. Now back the shaft out enough to insert a
socket, with a diameter slightly less than the shaft, in between the
shaft flange and the transmission. Make sure the socket is aligned with
the shaft and is free of the flange. Now if you tap on the flange the
hope is it will break free and come forward over the socket. Usually
this doesn't happen. So, you get a couple of continuous thread bolts
that will fit the flange holes and that are long enough to span the
length of the socket and flange, probably three inches or so. Install 2
bolts on either side of the flange. In affect you have made a bearing
puller. Now tighten them keeping the socket aligned with the center of
the shaft and occasionally tapping the flange and spraying on WD-40.
Add heat if necessary.
Gary,
.
Thank you for your patience.
It is now on to steps 3-? Need more advice. I was able to get both prop
nuts off. 1 1/4" was the size. Tapping alone did not get the prop to
move. I had no heat and no prop puller. I will see about a rental of a
three jaw puller from Handy Man Rental and will be prepared with heat.
I will be very careful with heat. Wooden boat, gas tank above the prop
and I do not want to change the properties of the metal of the prop.
I looked at the stern bearing 4 lag bolts and none of the nuts look /
act like they will come off. Although I was not ready to remove the
bearing because the prop is still on I tried each of the four nuts and
they loosened / spun off a bit but soon enough the lag bolts them self
were spinning in place.
What are the other ends of the lag bolts affixed to? Are the four
painted-over epoxy looking bungs, two on either side of the keel
forward of the where the bearing plate / housing and the keel meet,
access points to where the keel bolts pass through some vertical member
or aspect of the keel (is this the keelson?)?
I assume because the bolts themselves are spinning freely what they are
affixed to on their forward end is stripped or (eek) rotted or aged
past is holding ability. Or are the bolts not affixed to anything but
in essence threaded on the aft end for the nuts but wood screw in
fashion on the forward end to be driven into / bite into the wood of
the inner keel? Or are the bolts themselves just laid in a receiving
hole and bedded with some sort of compound? Would the wood dowel plugs
you speak of be as log as the receiving holes in the keel? Again, what
keeps the forward en well enough to be understood.
When I get a puller and successfully remove the prop I will have it
reconditioned. Or not?
The end of the shaft has a pertruding aspect that is slotted and
appears to have been the cotter pin hole. It does not appear to be
screwed into the shaft as a cap, but rather an integral part of the
shaft. Could this be true? Minor corrosion has reduced it to a slot.
How the hell would one ever rebuild or replace if it does not screw out
of the end of the shaft? Pull the shaft and bore it out to receive a
cap with a cotter pin receiver?
On my last boat (see attached..I am serious..I owned this 65' 49 ton
with my brother 95-98) it was a 3" with 4 1/2 threads per inch acme
threaded. I learned all this because zincs were eaten away during the
summer we had SHELL-FISH in Damariscotta and on the end of the season
trip to Brooklyn NY the shaft snapped at the drilled cotter pin and the
prop unscrewed off the shaft with the prop nuts bunging up he threads
in the process.
We were in the Annisquam Canal waiting for the 128 bridge to open to
pass though to Glouscter). Later, after we drifted away from the bridge
(thank God!) back toward the Cape Ann gas dock but on the north side of
the canal and were rescued to the gas dock. When and immediately after
it happened we had no idea we had lost our 36x24 wheel and nuts! At the
time I only knew we lost propulsion and steerage. Later, after we were
safe on the Cape Ann gas dock a diver told us the sad news we had lost
these items.
Long story short we employed another diver who took two days to recover
the wheel from the canal even though we carried a spare. The nuts were
not recovered, but we found two to buy. The diver attempted to affix
the nuts to the shaft with the boat in the water but the threads were
so badly damaged that we had to find a thread cutter to attempt to re
cut the threads in the water! Well needles to say one can not just
produce a cutter capable of working on a 3" with 4 1/2 threads per inch
acme threaded! Even in Gloucester.
It was decided that SHELL-FISH was to be towed through the canal bridge
to Rose's Marine where we were hauled and spent a week on jack stands
over Halloween weekend! Rose's showed us how the 45' shaft was muff
coupled behind a panel on the false keel. They were able to pull the
aft 9' section of the shaft to machine the threads. We also re packed
the stuffing box and reseated the rudder post while we were out of the
water.
SHELL-FISH went back together with a recut shaft and two new (used)
nuts. One of the nuts, the aft locking nut, was drilled out on each of
its six faces and hex nut set screws were inserted for an extra bite on
the shaft. Set screws were then set on top of the first set of set
screws and were finished with locktite! Because the shaft had broken at
the cotter pin it was now too short to have a cotter pin hole in the
shaft so the end of the shaft was tapped out to accept a stainless cap
screw assembly.
Made the rest of the trip fine. But sold that boat.
Back to CHAZ 1. I learned from SHELL-FISH but my CHAZ1 is different.
What are your thoughts on how the cutlass bearing keel bolts are
affixed / seated? Do you think I should just do as much careful
disassembly as possible to save the yard labor rate and have Paul
Bryant take over and reassemble now you know the cutlass bearing keel
bolts are spinning freely?
Graham
.
Graham:
I see you are progressing, two steps forward one step back. Localize
the heat
to the hub of the prop, the less you heat the shaft the better. If the
prop doesn't have a lot of pink color and hasn't been damaged it
doesn't have to go to the shop. The lag bolts, actually they are like
studs one end of which is tapered and threaded like a lag and the other
is straight and threaded to accept a nut, are usually just screwed into
the wood. Over time and usually from electrolysis the wood around the
threads deteriorates and the lag will just spin in place. Try a pry bar
under the housing to see if it will come aft but be gentle it could be
threaded onto the shaft log. Also try a pair of vice grips on one of
the nuts and pull aft as you try to unthread the nut. Unless the
structure is very different from what I have seen, there is no way
these are bolts for there is no where to put nuts on the inside end.
The keelson is the part of the keel that runs the length of the boat on
the inside.
The situation you describe at the end of the shaft I have not seen, so
I can't be of any help. As far as letting the yard take over, that
depends on your level of frustration and level of
cash.---------------gary
.
question: I am repairing a shaft log leak in a 38' Biloxi Lugger. The log is not lined with a tube but is simply bored wood with bronze fittings at each end for the cutlass bearing and stuffing box. I think a fiberglass tube is in order but need to over-bore the log from 21/2" to approximately 3" and install said tube. What tools are available for this task? Is there a better way?
Thank you,
John
.
John;
It is a real drag to rebore that hole, plugging it and drilling. If you make up your own FG tube, using a pipe or pvc with releasing agent as the mold for the right diameter, making the tube on the thin side and once installed beefing up the ends where you would flange it to the hull with additional glass and beef up the inboard end for the stuffing box tube. There is no stress on the tube itself so there is no need for overdoing the thickness. If you don't have the clearance for even a thin tube , sounds like you know what you have to do and I know of no easy way or magic tricks to make it any easier. So I wish you luck and here's a site that shows it being done on a glass boat----http://www.bertram31.com/proj/tips/shaft_logs.htm
.
~~~~~~~~~~~~~~~~~~~~
.
I have a bent bronze propeller strut on an old sailboat do you know
of any tips
on bending it back. The dimensions of the strut are such:
height == 8 inches
fore and aft == 3.5 inches
width == 3/4 inches
it is firmly attached to the hull, the bend is in the shape of a banana
out 1 inch to one side.
I was wondering if a could bend it back without weaken the metal to
much.
Thanks
.
Hi:
Yes, without the right equipment there is a good chance you would
significantly weaken it by bending it, plus it is doubtful that you
could get it back where it was such that you could get good shaft
alignment with the engine. This means you would have to pull the strut
anyway in order to align it and rebolt it in a bed of thickened epoxy
to hold the new position. Thus, I would take it off and bring it to a
machine shop where they can bend it properly. Best of luck---gary.Thank you for your
timely advice it prevented me from making a large f-up.
Howdy
.
Howdy:
That's good to hear. Good luck with your project and feel free to ask
more questions as they arise-------gary
.
Gary,
I saw your address was Rockland. Am thinking of moving to Maine. The
people are neat
up there aren't they. My girlfriend said Maine is beautiful. Maryland
keeps getting more and more crowded. We live in Baltimore. Our boat is
a Carter 3/4 Ton 33 ft. built by Scheel Yachts in Rockport, Me. She is
a Dick Carter design we have owned her (family boat) for 20 years she
was built in Rockport, Me. in Sept. 1974. Have always had a blister
problem now, however, it looks like I have to do some work on the hull.
I let it go to long. It looks as if the water has only penetrated the
funny looking first layer. I believe this is called fiberglass mat it
is next to the gelcoat. Any ideas on fixing this problem and if you
think she has been damaged much. This is the firstwinter she has spent
out of the water. What is the average slip rental for 33ft. sailboat in
a fun area in Maine. Am preparing her as an escape craft if need be.
Hope am not asking to many questions but do you if Scheel Yachts is
still in business?
Thanks again
Howdy
.
Howdy:
Sorry, no Sheedy Boast builder still in existence. I am surprised you
have a blister problems, most FG boats built previous to 1976 were
pretty blister free. Usually the fix involves stripping off all the
gelcoat, either by grinding or renting a special electric plane and
then letting the boat sit and dry out which can take a very long time
in this climate, and then redoing the hull with several coats of epoxy.
Larger problems can develop if the water has penetrated in between the
layers of glass and caused them to separate. Then you must actually
strip off those layers and reapply new ones. You can test for this
problem by taking the handle end of a screw driver and tapping on the
hull. First pick an area of the hull you know is sound, like the
topsides and hear the sound that is made when you tap it, should be a
sharp ping. Then do the same on the suspicious areas. If you don't hear
the solid ping but rather a dull thud, you probably have glass
separation which severely deters from the strength of the hull. If your
damage is just limited to blisters you can probably wait and do the
repair when there is sufficient time to let the boat dry out, but if
there is evidence of glass separation, immediate surgery is called for.
Yes, Maine is a great place. Down to earth people, beauty everywhere
and great sailing. Most boats here are on moorings not docked. You can
rent moorings, price depends on location, in this area around $500 for
the season or you can set your own. Here in Rockland it's not very
crowded. Good luck with the boat.---gary
.
Gary,
I take it from the nick name that sheedy boast was not that great of a
builder.I
always thought Maine had a good reputation for boat builders.
Now worried. I would say that the blisters cover 15 to 20% of hull
surface.
First layer about 1/8 of inch below gelcoat is bad in those areas. How
compromised is the hull in your opinion. What exactly happens do the
boatsbreak open? Do you just start sinking real fast or is it a slow
sink with time tosail to the beach. I don't know I have not seen a fg
boat fall apart. She has been raced pretty hard for 25 years.
.
Howdy:
Without seeing the boat myself I can't say how compromised the hull is.
I think it is time to bring in a local pro to survey the hull and give
you the bottom line. I am mostly a wooden boat man but I would guess as
the water continues to separate the glass layers you would get huge
slab blisters and the high stress points like chain plates and the keel
would be at risk. Ask around the boat yard and find somebody that works
on glass hulls and can tell you if the boat is worth fixing. Sorry for
the dark analysis, but better safe than sorry.-------------gary
.
~~~~~~~~~~~~~~~~~~~
.
question: We have a 1982 Hunter 33..We
want to remove the old carpet that is on the inside hull walls and put
in Teak strips. Where can we find the Teak strips and what procedure
should we follow to do the job right?
This is our first boat.
.
Hi:
First strip off the carpet, then find a solvent that will take off the
glue that held the carpet on, but doesn't melt the fiberglass.
Depending on where you live finding teak stock should not be too
difficult, look under exotic or hard woods in your yellow pages or ask
a local cabinetmaker. It will be expensive and you will need 2in thick
stock that either you or a local woodworker will cut into 3/8in X 2in X
as long as possible strips. Before you can install it you will have to
put in some vertical ribs to attach it to. These ribs should be 1/2 to
5/8 thick about 2inches wide and as long as needed. They should be
spaced about 16 to 16 inches apart and will be glued to the fiberglass
hull using epoxy glue. The wood for the ribs should not be teak, but
rather oak which you can find already precut at your local lumber yard
because they use it for oak flooring. However, if you use this stock
you will have to double them up by glueing two together in place so you
get enough thickness. If you use thicker oak you may have to kerf,
multiple saw cuts on, the backside of the ribs to help them lay true to
the curved parts of the hull. Once the ribs are in place you can cut
your teak strips to fit and install them with small screws either
plugging them, not a good idea with thin stock, or preferably using cup
washers which allows for simple removal should that be necessary. Also,
whoever cuts the teak strips should round off the outer edges. I am
sure this does not answer all your questions, but it is a beginning so
feel free to ask more------gary
.
i have just purchased this 1967 GB and would like to sand and
refinish the teak decks.
is there anything special to know before starting, as far as the
caulking (thikol) i think its called.. or anything else..
do i just start with a rough grit sandpaper on a belt sander and go
from there??
any help would be greatly appreciated.
thank you
Brian
.
Brian;
Congratulation, great boat. Normally there is little reason to sand
teak decks and lot's of reasons not to, pain in the butt for one thing
plus with the price of teak comparable to gold, you don't want to waist
any plus the plugs in the screw holes don't want to be minimized. On
top of all that, there are simple 2 part teak cleaners that do a better
job than sanding and are a breeze to use. West Marine has them. Have
fun with your new old boat. Feel free to ask more as needed--------gary
.
THANKS AGAIN FOR THE QUICK REPLY.... I HAVE CHECKED
THE DECKS AND THEY ARE AT LEAST 1 1/4" THICK... I DON'T THINK THEY'VE
EVER BEEN SANDED DOWN.. THEY AREN'T THAT BAD BUT IM SO ANAL ABOUT
THINGS I WANT THEM TO LOOK LIKE NEW SO I GUESS I'LL TAKE THE BELT
SANDER AND GET THEM DOWN TO SMOOTH AND THEN USE SOME LIGHTER GRIT TO
FINISH.... WHAT ABOUT THE CAULKING,, ITS A BLACK TAR LOOKING STUFF THAT
I THINK IS CALLED "THICOL".. I GUESS IT WILL JUST SAND THE SAME WAY AS
THE TEAK..
ANOTHER QUESTION..
WHAT ABOUT SANDING THE BRIGHT WORK ..? THE RAILS, ETC.. SHOULD I DO IT
BY HAND, OR WOULD A SMALL PALM SANDER BE BETTER, OR, DO YOU KNOW OF
ANOTHER TYPE ELECTRIC SANDER THAT WOULD WORK BETTER??
THE FIRST OWNER DIDN'T VARNISH, HE OILED EVERYTHING, SO THE RAILS,
ETC... NEED TO BE SANDED TO BARE SMOOTH WOOD AND THEN VARNISHED
NUMEROUS TIMES....
THANKS AGAIN FOR ALL THE INFO... I APPRECIATE IT..
BRIAN
.
Brian
Sounds like you got plenty of thickness, so go to it, the black
polysulfide in the seams will sand just fine. I would give the bright
work the same treatment as the deck, use the teak cleaner then sand it.
The Makita palm sander is a great tool but for fine sanding put a thin
sponge or some kind of soft pad between the sander bottom and the
sandpaper. Spend the extra bucks for a good Varnish high in UV
protection, wipe the teak with acetone before the first coat to get the
surface teak oil off. Have fun, nothing more satisfying than seeing
that beautiful teak come back to life. I myself preferred the gray
look, easy to maintain as well---gary
.
TEAK SOLE 5
.
The teak and holly sole in our sailboat needs to be refinished. In
some
areas, the seam between the teak and holly strips is separating ever so
slightly. Do you have any ideas on how best to refurbish this? Thanks so
much for your help.
Susan
.
Susan:
The best bet is to strip the wood thoroughly of the old finish, sand
well and apply several coats of an epoxy coating. Before applying the
first coat wipe the wood down with acetone, this will rid the surface
of oil and make the adhesion better. You can apply a coat or two of
satin varnish over this to get better footing.The epoxy should
penetrate into the small separations and act as a glue. Smith &Co
in Richmond Ca makes an excellent epoxy for this purpose.. You can get
more epoxy info. and I believe contact the company
thru-----www.rotdoctor.com-------good luck--------gary
.
question: Dear Gary,
We just purchased an Aloha 34 and need to give it lots of TLC. What can
I use on the interior teak to brighten it up. It has numerous coats of
teak oil on it at present. Is there a product available that can clean
it and /or lighten it up. The woodwork is beautiful but darks the boat.
Thanks Lyndee Lu
.
Lyndee Lu:
Great name. The only stuff I know to truly brighten up a dark teak
interior is called white paint. Short of that there are 2 part teak
cleaners on the market that will remove most of the oil and will
lighten things up. On some boat models, especially those built in
Tawain[sp] they went a bit crazy with the teak interiors and the
overall effect is quite dark. As hard as it is psychologicaly to put
paint to teak, painting the large flat surfaces,such as bulkheads, a
bright white can make a big difference in the overall interior feel.
Use the cleaner first and see how it feels. Good luck with your new old
boat. Speaking of that check out www.goodoldboat.com----a great
magazine for oldies but goodies-------------gary
.
Hello
Actually my boat is fiberglass but with character-we've made her as
pirate-like as possible. e discovered a leak in the mast boot area has
caused water to run on to our cabinet sole. The sole itself is teak and
holly and appears fine except for some lifted varnish. However, their
is moisture damage in the plywood subfloor area along the edge of the
lockers- the support beams for the floor hatches do not seem effected
but we are uncertain as we are going to inspect them all this weekend.
Apparently this has goning on for a while and we had not noticed. Is
there any recourse aside from removing the sole and laying down new
plywood. Which seems a frightening task. Would we be foolish using a
product like Get Rot or another sealer????
Pleb Boaters
Kevin and Lori
.
Kevin & Lori;
Yes, redoing the cabin sole is a major headache, but if the damage is
not structural, which it doesn't sound as though it is, penetrating
epoxy [getrot] might do some good. The unfortunate problem is that once
the rot spores get into an area and there is not much air circulation,
they will continue doing what they do. It would be helpful if you could
dry the area well before applying the epoxy. Eventually you will have
to bite the bullet and do the repair properly but for the time being do
the quick fix and go sailing. If you want more info.on the penetrating
epoxy go to www.rotdoctor.com.---------gary
.
question: I will be refinishing my cabin sole on an Irwin 38. Which
method should I use and also what products do you suggest. It is a teak
and holly sole not real bad shape but I do want to be ahead of any
major redo. Thanks for your help
.
HI:
I assume the present sole is in fairly good condition and will not
require and bleaching. Although there are some good epoxy products on
the market, I tend to stay away from them because the ideal conditions
needed to get good results are seldom present on a boat. I would use a
good varnish like Epifane and do several coats of high gloss, sanding
in between coats, and finish off with a flat or semi-gloss coat. The
gloss coats are for the hardness and the flat top coat is to reduce
slipperiness. This has been my way with good results but you will get
many diverse opinions. If you want many opinions, somewhat confusing
but informative, go to www.cruisingworld.com and post your question on
the bulletin board. Here's a direct link CW/SW General Messages Board -
Message Index -------good luck--gary
.
question: I'am in the process of restoring my cabin sole on my US
yachts 33.
I was wondering if there was another type of plywood or wood that I
could use other than the traditional teak and holly sole? Something
that would stand up alot better to the moisture in the bilge.
.
Hi;
I would get a good cabinet grade birch plywood. It has a nice finish
for painting, has waterproof glue, uses no fillers and has no voids.
Make sure you seal the underneath surfaces with a good oil based paint
or epoxy. Good luck----------gary
.
question: I want to install a new teak & holly sole in an Irwin
30 (1977). The original appeared to be both screwed and epoxied to the
fiberglass sub-floor. Is that the proper way to install the new one?
Also what would be a good protective coating and how many coats??
Thanks ; jb
.
jb;
Yes, I would stick with the same way they did it. For a finish I prefer
a good varnish, 3 coats of high gloss for hardness, topped with one
coat of semi-gloss for a better nonslip surface. Also make sure the
epoxy or polysulfide you use stays flexible so the normal swelling and
contraction of the wood won't break the bond. Messy job but the results
are well worth the effort------good luck------gary
.
~~~~~~~~~~~~~~~~~
.
pI have a 1971 Grand Banks 50. I found what I
thought was dry rot in the
plywood on the insides of the bulwarks. As I started ripping into it, I
found termite activity. It seems to be limited to the plywood.
Have you any experience with this problem in a boat?
Do you have any advice about what my next step should be?
.
Jim:
Termites in a boat are a rare occurrence but, as you prove, it does
happen. If you are lucky the activity is limited to the plywood and
hopefully just to that piece. I would remove and replace that whole
section of plywood and inspect the edges of the adjacent pieces for any
indication of termite presence. I would also inspect all the ply on the
bulwarks by taking the handle end of a screw driver and lightly tapping
all around. Hopefully you will here a high pitch solid sound but if you
get a dull thud something is amiss. I would also do this on the other
exterior wood structures. I assume your Grand Banks is all wood so I
would recommend getting a fumigator to do a thorough job on the inside.
It's all a pain in the butt and wallet, but you want those critters
taking up residence elsewhere. Good luck.-------g
.
TOE RAIL REPLACEMENT 1
.
Gary;I am not having any luck in finding anything but kiln dried
mahogany. I
need to steam bend new toe rails and the kiln dried stuff won't work.
(unless there is a way to). Could you suggest a source or give me advice
on steam bending kiln dried lumber? Thanks
.
Rich;
Yes, finding mahogany with the proper water content for steaming is
very difficult. You can reintroduce water by soaking the pieces over
time. I would cut them to shape and wrap them in water soaked rags for
a couple of weeks. The other possibility is cutting the stock in
bendable strips and laminating up the toe rails in place. Also,
although I don't know the length of your boat or the severity of the
bend, I have often been able to bend in dried stock without steaming by
having considerable overlap bow and stern. You also might consider a
less exotic wood, such as fir, and paint them. Kiln dried teak,
although very expensive, steams pretty well do to its high natural oil
content. I hope this helps-----good luck---Gary
.
~~~~~~~~~~~~~~~~~~~
.
Mr. Wheeler,Thanks for the advice in advance.I've own my boat for 20 yrs.,and my father owned it before me for 15 yrs.It's a 20ft. Thunderbird cuddy that I converted to a center console.I want to enclose the transom and put a bracket on for the outboard.Would I have to make the new transon on a 90 degree or could I go with the original angle of the transom?Do you think that by putting the engine further back,I will run in to handeling problems,(planing,steering,)? Thanks again for any imputs Charles.
.
Charles:
I would tend to build the transom at the original angle and shim the
outboard bracket if you need to. However by putting the weight aft of
the transom you should beef up the new transom and add some sizable
knees at the bottom and in the upper corners. It is difficult to say
how much the trim of the boat will be effected but any problems can be
overcome by adding trim tabs or putting some weight up in the bow. You
will have to mess with it a bit to get it where you want it. I commend
your effort to keep a family boat in good shape-----good luck ----gary
.
I am helping a friend with his 42 foot
motor boat,
built about 50 years ago. We have it out of the water
and in a storage yard, since last Thursday. We are
now sanding the bottom prior to repairing it. I
noticed however that the transom appears to be moving
relative to the rest of the boat. I have attached 3
photos to show what is happening. I noticed the
movement because of the photo named 'paint.' The
planks on the sides near the tail of the boat are
moving and buckling the paint. Then the cracks showed
up on the corners of the boat. I think this is
because of the boat sitting on the blocks, but how
serious a problem is this going to be? Do we need to
panic, or what? Your help is greatly appreciated.
TERRY ABELL
.
Terry:
Yes, it appears something is going on. On older wooden boats the corner
ribs where the plank ends and transom board ends are fastened can be a
problem area. Often fresh water will get in from the decks and settle
in this area and cause rot. I would take a hammer and tap all around
this area and if you see a lot of vibration or hear a hollow thud as
compared to a sharp solid sound, there is a good chance you have a
problem. It could be just old loose fastenings but I would try to get
into the inside of the aft corners with an ice pick and see if the ribs
are soft. If you have to repair the inner structure, the easiest way is
to pull the transom boards. That way everything is exposed and easy to
work on. Good luck and feel free to ask more-------gary
.
question: Gary
I own a 1983 23' Thompson fisherman with an I/O. Last fall while
installing a new alternator I noticed some bubbles on the inside of the
transom. I started poking at it and took out rotted plywood to the gel
coat. I don't know the extent of the damage until I pull out the motor
and outdrive to remove a piece of plywood that is against the transom.
Can you give me some information on how to go about making the repairs.
Your advice would be greatly appreciated. Thankyou,
Ed
.
Ed:
Usually once rot enters that transom
plywood the only repair is to pull it all out and replace it. You work
from inside the boat cutting out the ply without damaging the outside
glass. Replace the ply with a good marine grade, you may need 2 layers.
If so, sandwich the 2 together with a layer of resin soaked fiberglass
mat bewteen them. Also use this resin soaked matt to bed the new ply to
the transom glass. Leave no spaces for fresh water to enter.
Finally,using mat and roving, glass the ply edge to the hull where it
meets the inside of the hull and cover the surface of the ply with a
layer of fine glass cloth to seal it. Not a hard job, just
messy---------g
.
question: I have a 1947 Texas Maid fiberglass 14` open fishing boat. The transom
has got to be replaced and I am having problems finding a spot that will tell me how to do it...I have already removed and cleaned the area where the old wood was at...Can you give me any help....Thanx. Bill
.
Bill
Here is my response to someone with the same problem. If you have further questions feel free to ask----g
Ed:
Usually once rot enters that transom plywood the only repair is to pull it all out and replace it. You work from inside the boat cutting out the ply without damaging the outside glass. Replace the ply with a good marine grade, you may need 2 layers. If so, sandwich the 2 together with a layer of resin soaked fiberglass mat bewteen them. Also use this resin soaked matt to bed the new ply to the transom glass. Leave no spaces for fresh water to enter. Finally,using mat and roving, glass the ply edge to the hull where it meets the inside of the hull and cover the surface of the ply with a layer of fine glass cloth to seal it. Not a hard job, just messy---------g
.
Thanks, Last time I tried to use an adhesive between the layers and it did not work...Also used fiberglass resin between the transom and the hull...that did not work...never thought about using a resin soaked mat between them...appreciate the information.....Bill.
.
Bill;
Glad I could help. Also another tip, use vinegar to clean resin off your hands, much less toxic than acetone------g
.
TRAVELER 1
.
Dear Gary,
I need to find traditional travellers, about 2 feet wide for my main and
staysail for the Atkin
Ingrid ketch that I am about to finish.
I would like to get them preferably in stainless, but I don't want to
get
the modern type with
adjustable runners, just the straight pipe with a hump at each end to
stop
the block.
I have looked everywhere so far without any luck. Any ideas I could
persue?
Thank you
Udo Nittner
.
Udo:
I don't think you will find them new anywhere, but you might find them
through salvage. Check on www.sailorman.com and at
www.minneysyachtsurplus.com. If not there I would have them fabricated,
such simple fabrication wouldn't cost much, plus you get them just the
way you want-----------gary
.
VARNISH 31
.
question: We are in Northwest Alabama and have a 1985 Hunter 28.5 Sailboat that we are replacing the cabin sole in. We are using a 1/2" thick 4' x 10' piece of teak and holly plywood cabin sole. We need to know how to finish the teak. After reading your posts we see that you mention Interlux varnish. Is this what we need to use and if so, how many coats? Do we need to sand between coats? Any recommendations would be greatly appreciated. Thanks, Beth and Jim
.
Beth & Jim
The modern tech thinking would say to put on a couple coats
of clear epoxy before you varnish but I having become, much to my surprise,
and "old timer" tend to stick with what I know. My preferance would be a
well thinned 1st coat of high gloss varnish than 3-4 more coats of high
gloss with light sanding in between, and finally a coat of semi-gloss. The
high gloss coats give the hardness needed, the final semi-gloss gives less
slipperiness under foot. With varnish, you get what you pay for, Epifane
being the best, although Interlux is fine as well. Here's a paper on
alternatives, http://www.epoxyworks.com/18/varnish.html
Also, if you sole is not yet installed, I would put a sealer (varnish,
epoxy, paint) on the underside and edges of the ply to seal out moisture
from the bilge. Have fun-------gary
.
question: Question ;in your opinion who manufactures the most durable varnish ?
I was reading some of the questions on the web sites . When I came across one about coating epoxy over urethane . Yes it can be done , as some types of Urethanes are actually true epoxies in nature . Two component aliphatic Hydrocarbon . Refered to as type 1 - 4, they just need to be roughed up real good for adhesion . I used to formulate them for major manufactures .Each has it's own unique advantages as well as draw backs . Same with epoxies . Thanks ... Ken
.
Ken;
Personally I stay away from urethanes or epoxies and just prefer a good
quality Varnish such as Epifane. Although many swear by epoxying the wood
before varnish, I do not. A few thin coats of varnish as a filler, then
stain if need be but preferably not, then 4-5 finish coats full strength of
high gloss for hardness and durability and one final coat of either high gloss or satin ( best for non slip like cabin-sole).Mix in a little Penetrol for improved flow and brushability ---gary
.
question: Hello from Ken on Second Wind. I am in the yard in Ensenada and just put in a teak and holly floor. I have put several coats of Spar Urethane on the floor. (wish I would have put epoxy)Some tools fell out of the box and left 2 gouges in the new floor. What could I use to fill it? Is there any way to put epoxy over urethane? If not, is there anything I can put on the floor to make it stronger than the urethane without completely removing the urethane? Thanks for your help
.
Ken;
If the dings in the new floor are less than an inch long I would drill
them and glue in the appropriate size teak plug. If they are too large for
a plug I would chisel them fair and glue in fitted Dutchman. Any fillers
will stand out too much. I don't believe you can epoxy over urethane, but
you could try a small patch and see. Normally with a teak sole I will use
several coats of the very high gloss for its hardness and finish off with a
matt finish which gives better footing. Hope it all works out----------gary
.
question: Hello Gary:
Great site! I inherited a 37' 1953 Richardson cruiser. The varnished mahogany inside the cabin is in fairly good shape but some pieces along the side of the inside cabin look as if there is almost no varnish on them. I don't know what type of varnish was used. I'm a complete novice and just need to do the bare minimum to protect the wood. Can I just do a light sand and apply few more coats of varnish? What grit sandpaper and varnish do I need? The boat was used in the Great Lakes for 50+ yrs but now is in Tenn. Also, the back deck which I assume is mahogany strips with black stripping between is varnished and is thinning in areas. Can I touch it up the same way? We do not have the time/know how to completely strip and restore. I just want to keep it from degrading further. All the wood has many, many coats of varnish. There is one area on the back deck siderail where the varnish is cracking and deeply chipped. It is part of a very large piece of wood. Any help is greatly ap!
preciated as I am overwhelmed. The boat is in the water in a covered slip and I get to spend only about 2-3 days per month working on it. Thanks, Leigh
.
Leigh;
Sounds like a nice boat in decent shape. You are right not to take on
too much until you learn more and you are also right to do what is necessary
to protect what needs protecting. Touchung up is AOK. The grit of the
sandpaper depends on the
condition of the old varnish, if it's Ok or smooth bare wood, use 150 grit,
if it is cracking and rough, start with 80 and end up with 150. Basically start with the roughest
grit needed to get rid of the bad stuff and go up in grit until the surface
is very smooth.Use a good marine varnish like Interlux or others available
at marine stores. Thin down the first coat 1/2 thinner, 1/2 varnish and full
strength for the successive coats, 4-5 for bare wood.
Also, to begin educating yourself on maintaining such a vessel,
go to www.woodenboat.com and check out their book offerings on various
topics.
Good luck and ask more as needed---gary
.
question: Dear Ed,
I recently bought a 1961 Cape Cod Marlin23 daysailer. Two marine surveys found her well built and structurally sound. The toe rail,coaming and two 10 foot cockpit benches are mahogany. I have all the wood{by hand} down to bare wood. There is mucho discoloration but no rot or damage. Being a hands on misfit I was stunned by your reference to mahogony finished with oil rather than varnish. Please explain what I need to do re: oil...I can't varnish worth a hoot...But God lets me write jokes> "I called dial-a-date...but they had a headache!"
.
Hi-----When mahogany is discolored from age and weather wear it is difficult to get a good consistent finish with just oil. Usually one would first bleach the wood with oxalic acid, then apply an acrylic sealer , then a stain and then several coats of varnish. Saying that,you could go ahead and apply several coats of tung oil the way it is and see how it looks and do the other later if it looks lousy. Have fun with your new old boat---------gary
.
Hi Gary-I have these really beautiful trailboards that have been oiled. The finish has turned out to have a cloudy haze over some sections of the wood. I'm afraid that this does not do the boards justice. I would like to know if I can varish over the boards now with oiled surface and if so what proceedure and type of product would you recomend to start to do this. Is there any "yard cocotions" that would help me even out the finish, bring a slight shine to it and keep it protected. Please help...
Laurie
.
Laurie;
Nice boat. No magic potions but the right treatment for the boards depends on the type of wood. It looks like teak and if so I would wipe it down with acetone scrubbing it with a 3m soft pad, let it dry and varnish with a good high UV protected varnish like Epiphane. Do 1/2 varnish and thinner for the 1st coat. Do 4-5 finish coats. If not teak, do the same process but substitute paint thinner for acetone.Have fun------gary
.
Thank you for your quick response back... As you may see it's been a supreme process for me learn to love varishing but with a Angleman you have too love it over and over again! I've been slowly working on her for 2 years and getting down to the finish stuff. I got kind of scared and little lazy with all this detail work with the trailboards and thought oil would be the answer VS sand/varish/sand/varish-again & again... I have been told that boat was built in Japan and that the trailboard wood was some kind of Japanese Oak? Could that be? In your opinion was the oil option a real mistake in finish for this type of project? The detail is crazy. Please advise...I want to do right for trailboards.
Thank you for you help!
.
Laurie;
Yes, in fact the grain looks like oak. You did nothing wrong by using oil, but over time the oil discolors and readily collects dirt. I would try the varnish after an aggressive wipe down with thinner--------g
.
Gary-Thank you for your opinion. Back to the sweet smell of the varnish can and sandpaper manicure... Wish me dilagence!
Thank you for making yourself available to me and to others for your great help.
Laurie
.
Laurie;
Your welcome, send me a photo when you're done, I am sure they will look beautiful--------g
.
question: I'm the father of Ryan with the 23ft Chris-Craft and I didnt understand about painting over the woodwork? I Know I have seen wood boats in FL. that are showing varnished wood. Do they just have to redoit more times a year?
.
Yes, they have to do it quite often, plus the dark natural wood color absorbs the heat and tends to somewhat dry out the wood. Northern boaters who take the yachts to the tropics often just use white paint right over the varnish. This protects the wood better, reflects the heat and makes it easy to return to the varnish finish when one wants by just sanding off the paint. If one keeps after the varnish in these climates bright work is OK, but the problems come about if the varnish is let go and fresh water gets under it and rot begins and in those climates rot moves fast.
Hope this clarifies the issue----------gary
.
question: Hi Gary, I have a 19.5ft Garwood Runabout. It was professionally restored in 1984. I have used it consistently since then and I having some problems. The varnish has blistered in a few areas, mainly the transom,also around some plugs mid hull.
Not wanting to do another pro refinish at this time I started some do it myself repair work. I have sanded the transom to bare and spot sanded some spots on the hull only to find spot repairs aren't cuttin it.
The hull has some darkening in a couple of areas. How big a problem is this. The wood seems solid.
I have read in some of your emails you recommend sealing before stain.
Do you recommend this before using a filler/stain?
Since spot repairs don,t seem to be the answer what do you rec for a stripper?
Thanks for your time. Dave
.
Dave;
Nice boat. Those dark spots indicate some water getting behind the varnish. After years of adding a coat every season there is a point where the first coat starts coming away from the wood and it's time to start over. I use a Jabsco epoxy stripper because it seems more potent than the others. If you have dark stains , you may have to bleach the wood with Oxalic acid, available in hardware stores. Yes,even if you are going to stain you need a filler first to seal the soft grain, a combo filler stain won't give an even color. Have fun, a lot of elbow grease but she'll look great------g
.
question: Hello Gary, Question: I'm about to un-step the mizzen on my 41' Formosa. While down, I want to refinish. Currently, it is all varnish. Any recommendations on alternatives finishes? We use "bristol Finish" on the toe rail and trim with great success and though about it on the mast. I also thought about coating the mast in West and then using Bristol over that. I'm concerned about cracking when the mast flexes. So, I'm looking for a method that will seal the mast better and provide good protection from the sun and more importantly, the water. Thanks, Ed
.
Ed;
Paint-----is what I finally went for, although I left the first 6ft from the deck varnished. Other than that if you go all varnish just use the one with highest UV rating i.e.. the most expensive. Stay away from epoxies, they trap water and prevent air penetration.------gary
.
Thanks Gary. I'm going to have to pass on the paint however, I'm curious as to Bristol Finish instead of varnish. Thoughts?
.
Ed.
Can't really say, I have never used it but in general I have not liked a urethane finish and wonder again about trapped moisture. But, if you have had success with it on your rails there is no reason not to give it a try on your mast. You might want to ask that question on the cruising world forum at http://forum.cruisingworld.com/forums/genlmesg/index.pl --------g
.
question: We have a fiberglass boat, with some beautiful brightwork, including rails and caps, that need work. They are mahogany. Seems like "oil" is the way to go, but newer synthetics like "Cetol" sound like over time, they may require less maintenance. Any suggestions?
.
Forget the newer stuff, it lasts no longer and tends to have its own coloration which stains the wood. Still varnish or oil are the best options. With oil, like penetrol, you get good water protection but the wood tends to gray out quicker and an oil surface tends to collect dirt and in general is harder to keep clean than Varnish, although it is easier to maintain. Varnish looks sharp and gives the most protection but is high in maintenance. Personal preference really, just stay away from the Cetols and high tech epoxies------------enjoy---gary
.
Help!
I have been restoring and refinishing teak wood for a client and no
matter how gentle I am with the varnish (I strain, don't stir) and
loading my brush I still get some tiny bubbles. Can you give me some
tips to burst this vexing problem. They also follow me to other woods
besides teak!
Thanks in advance for addressing this headache.
Carol (An artist that lives on her own boat)
.
Carol;
I am not a great varnish expert, but I usually add some penetrol, an
oil available in paint and hardware stores, and that helps. If you want
other answers go to CW/SW General Messages Board - Message Index and
post your question. Nice life living aboard, I did so for 7 years in
SF> CA. Hope this helps-----gary
.
Which varnish is the best with regards to
appearance & durability ?
Cetol Sikkens, Interlux Schooner,West Marine, Epifanes,Z-spar, Pettit?
.
Epiphane---more $, but worth it. Follow directions to the letter--------g
.
Hello,
I have a question to ask you, if you wouldn't mind taking the time to
answer a question you've probably heard 1,000s of times.
I have an 18 Foot LeeCraft Day Cruiser, with Mahogany Plywood, that's
in need of new Varnish. I've been shopping around and have found what I
think is the better of the Marine Varnishes....Epifanes Clear
Gloss.This boat is not going to touch Salt Water (No ocean near
Montana). Is this a recommended varnish? If so, how would you recommend
the product be applied?
Your time would be GREATLY appreciated.
.
Hi:
Simple question, not so simple answer. Yes, Epifane is a top grade
varnish, maybe the top. I assume you are working with bare wood. If you
are going to do any staining you should seal the wood first with an
acrylic sealer then apply your stain. This avoids blotching caused by
the various absorption rates of the surface. If you are not staining
the sealer is not necessary. Next apply the first coat thinned down
about 20%. After that proceed full strength with 4-6 additional coats.
Of course, no rolling, and get the best brush you can find. There are
many today who recommend, and swear by, putting down a couple coats of
epoxy before varnishing, but I feel the epoxy keeps the wood from
breathing which eventually could lead to problems. I hope this helps.
It sounds like a nice boat and there is nothing prettier than a
varnished hull.-------gary
.
I need information as to the type of vanish to
use.
I intend to completely strip the old varnish on the exterior of my 1966
34 ft ketch.
I intend to use a scrapper and for the more difficult area a heat gun. I
will then sand the wood. I intend on putting 3-5 coats to create a
beautiful gloss.
What I would like to know is what type of vanish to use. I want a vanish
that will last more that one season.
I have never done this before and want to do a good job.
Thank you in advance
Patrick
.
Patrick:
The best varnish is Epifane, a Dutch product that always comes up tops
in all the tests. It is worth the extra bucks and should last 5-7
years. Follow the instructions to the letter. To strip the old varnish
using a heat gun is fine but it does tend to melt the old varnish into
the pores of the wood. So for the last bit of scraping I recommend
using a strong varnish & paint remover which will get the old stuff
out of the wood. You want the new varnish to get into the wood pores so
it is important that they are free of the old stuff. Put on 4 coats of
varnish and add one every couple of years until you reach 7 or 8 coats
and then its back to stripping again. Good luck-----gary
.
Hello:
I noticed your name on the Marine do it yourselfer web site, and I would
appreciate your advice. I have an older sailboat with a Spruce boom. The
previous owners did not keep up on the varnish work, and I have
inheritted a
project! I have been able to successfully strip the old varnish, but
now I have
a boom with tons of gray spots where the varnish had worn out
completely. I'd
like to bleach it back to a consistent color, then re-varnish. What
should I
use? I have tried TSP, but it doesn't seem to put a dent in the
gray/black
areas. It worked great on my teak, but not the boom. Thanks very much
for your
help!
-Tom
.
Tom:
Go to the hardware store and get some Oxalic[sp] acid, it is an
excellent wood bleach. Unfortunately sometimes the weathermarks are so
engrained you can't get them out so remember a well painted boom is
better than a badly varnished one. If you do varnish use a high quality
product such as Epifane, the extra $ is worth it. Good luck---gary
.
We own an Angleman Seawitch 36 that has brightwork which has to be completely redone, is tere any way of using epoxy to seal the wood before applying varnish, thus eliminating the need to go to bare wood again? ora
.
Ora:
Yes, many swear by the technique of applying an epoxy layer before
varnishing and it seems to bear good results. My only concern is that
epoxy does not breathe so any moisture that gets under the epoxy will
likely turn to rot, but if you keep a close eye on any dark spots that
appear, you should be ok.-----------gary
.
Hello
My name is carlos i have came across a (what i am told ) is a 1896 John
Atkins Wooden sailboat About 36 feet.
I have never had a boat i got this throw a law suit with someone who
owed me money,I live in Maimi Florida , You can imagine
a wooden boat here. Well when i first got her she was in pretty good
shape now its been a year and she's run down with the sun
and she also had a little electrical fire . I dont know what to do i
would like to restore her but i have a couple of worries. The sun her
eats throw varnish very quickly and how much would it cost. I have
heard of a product which say you can have the beauty of a wooden boat
without the hassle. I think it would be some type of clear fiberglass
which you apply and don't need to worry about the sun anymore but I am
not sure if that's what it is. And i also heard if you seal the out
side hull with something like that the wood will not be able to breath
and would eventually rot is this true or have you ever heard of such a
product that can resist the sun where you apply once and never worry
about it again? and if so will this product rot the wood because it can
not breath? and do you or do you know someone in or near Florida who
knows how to restore (the right way)? Please reply as soon as possible
. I have never wanted or ever had a boat but she is so beautiful it is
a same to sit back and what her deteriorate and not do anything. I have
looked everywhere and i can not see another boat like this one and i
have checked everywhere.Thank you in advanced
Carlos
.
Carlos:
I can understand your concern, you have a real classic boat there.
Unfortunately there is no magic product that will meet your needs. The
epoxies are not good for the wood and the varnishes won't last. I know
many sailors solve the problem by painting the wood, some even paint
over the varnish so when they reach a cooler climate they can strip the
paint off easily. Paint would be my choice, however, if the boat is as
old as you think it is and has not undergone a rebuild, there is a good
chance it suffers greater problems than the varnish. The problem with
owning a classic wooden boat, especially in your climate, is that you
must either be very knowledgeable and have lots of time to work on the
boat or you must have lots of money to pay others to do so on a
continuous basis. If neither of these options describes you, I think
you should consider selling her to someone that can maintain her. You
literally own a piece of history. If you decide to sell her, an ad in
Wooden Boat magazine would be a good idea. Sorry to be rather bleak but
better you should know what you might be getting into now rather than
later.----------------good luck----gary
.
Hi, Gary,
I am doing some brightwork on a 1960 Owens and need some advice.
Everything has gone without any problems - 'til now! The boat has a
large plank of teak that runs from bow to stern on the edge of the
boat. I have removed the old varnish, sanded, and cleaned it with a
paste I have used for years (Ajax cleanser with bleach softened to a
paste with detergent) and rinsed with a borax solution. After a day or
so these damned little black spots show up. So I clean it again.
Another day or so and they are back - usually in the same area. I will
be varnishing this teak (per owner's request), but don't want to
varnish over the spots. Any help you can give me would be greatly
appreciated.
Thanks,
Carol
.
Carol:
That's a tough one. Usually when I have had the little black spot
problem it has been do to minuscule pieces of metal, left from steel
wool or minuscule pieces of old fastenings {like staples} bedded deep
in the wood. When you sand over it the rust disappears but then returns
a day later after moisture has gotten to it. Whether this is the
problem or not, I think I would try using some sealer on the wood right
after your final sand and see if the spots return. Also the spots might
be bleeding from steel fastenings that were plugged over. If this is
the case you have to remove the plug, polish the head of the fastening
using a piece of rigging wire in a drill and seal the head with some
epoxy and glue in a new plug. I hope this helps-----If not, take your
question to the forum at www.boatbuilding.com-------------gary
.
Dear Gary,
I have just completed the brightwork on a 1956 Chris Craft. It is
gorgeous. My client asked me if there is a wax or polish product that
can be applied over the varnish. Do you recommend waxing over varnish?
If so, is there a product you have found to be the best?
I would appreciate any guidance or recommendations you can throw my way.
Thanks in advance for your help.
Carol
.
Carol.
Waxed varnished exterior wood looks great for about a week than the
sun's UV get to it and it turns all cloudy, not a good thing. I have
never heard of any effective finish over varnish although I have heard
of varnish over epoxy. Tell the owner if he wants to preserve and
protect that fine finish he has to either get a covered berth or get
canvas covers for the varnished areas. Of course, when needed you can
put another coat on but about 7 coats altogether is the limit, then it
is get out the scraper and sandpaper, strip it, and start again. Good
luck------gary
.
Hi, Gary,
I have a new client for brightwork who has a 1972 Swan. The stern cabin
door was damaged by the owner years ago and a half inch plug was put in
and the surrounding area feather to match the door as closely as
possible. He had another brightworker do finish maintenance. When the
guy lightly sanded and started to add coats of varnish the plug and
surrounding area stuck out like a sore thumb!
He has come to me and ask if I can get the appearance back to the way
it was before the maintenance was done.
Help!!
Any advice will be greatly appreciated.
Thanks in advance for your help.
Carol
.
Carol:
Normally you would have to take the whole hatch down to bear wood then
wet it with water to see if the plug area still doesn't match. If it
doesn't and you want to get paid you will have to lightly stain the
whole hatch and hopefully you will get a match. Put a coat of sealer on
before you stain, this helps to get an even color. Also if there is a
big color difference between the plug area and the rest of the hatch
after you brought it back to bear wood, you may want to bleach it with
oxalic acid. Have fun, it is a difficult problem. If all else fails,
paint it--------------good luck---gary
.
Hi, Gary,
Thanks for your tips to repair a mismatched plug repair on a teak door.
Your advice to strip, bleach, and rebuild the finish worked
beautifully. I'll send you before and after pictures as soon as I
download them.
My newest challenge is a 1956 Chris Craft runabout. The owner has asked
me to put a maintenance coat of varnish on the topside. The boat is in
very good shape and the varnish has only a few bad spots. My concern is
a couple of caulking strips between slats on the stern have begun to
pull apart. The slats are not coming up and the owner has asked if
there is a temporary caulking material you might recommend to at least
seal them just for the summer. We are dry docking her this winter in a
warehouse where we will completely restore her.
Thanks in advance for your help.
Carol
.
Carol;
Those old ChrisCrafts are beautiful boats. The caulk used in the seams
is a polysulfifde caulk that comes in tubes in different colors, ie
while, tan, and black. Get it in a marine store, Sikaflex or 3M are the
companies that make it. For a temporary fix cut out the loose or
cracked caulk with a razor knife being careful not to damage the edges
of the wood. Put tape on both sides of the seam, lay in your caulking,
push in with a putty knife, then pull the tape fairly immediately. When
you pull the tape pull lit back against itself like this <, not
straight up This also would be the method you would use if you were
doing all the seams, which you should do as part of your winter
restoration. These are great boats to restore, lots of beautiful
mahogany. Have fun and I am glad the bleaching worked out.-----gary
.
I recently bought a 1959 Gibbs wood boat. it is mahoghany, and is a
16 ft.
outboard. the outside, particularly the top needs finished. do you have
any
ideas where i should begin, and what i should use to seal it. also, do
you
have any info on Gibbs boats. it was built in erie, michigan, and we
can't
find any information at all on it. thanks...........dick
.
Dick;
Sorry, I don't know the Gibbs boats but would suggest you go to
www.woodenboat.com and ask your question in their forum. As far as
refinishing is concerned, if the finish in place is bad you have to
remove it with a combination of remover and sanding. Once down to
smooth bear wood, seal it with and acrylic sealer than cover with 4
coats of varnish. If the finish there is salvageable, sand well and
recoat with varnish. If you have more specific questions please ask.
Enjoy your boat------gary
.
Hi, Gary,
I have been asked to put a fresh coat of ManO'War Marine Varnish over
the existing Epifanes Varnish (after lightly sanding of course!). We're
going to dry dock her and take her to the bare wood this winter at
which time he wants Epifanes used exclusively. My question. Would the
two varnishes be compatible? Does the age of the Epifanes coat make a
difference? If there's going to be a reaction what should I look for?
There are no breakes in the integrity of the Epifanes so I will only
need to lightly sand after washing her down.
Thanks again for your help.
Carol
.
Hi Carol:
Nice to see your keeping busy. There should be no compatibility
problems between the two Varnishes although I don't get why your not
using Epifane since that appears to be the Varnish of choice. All
varnishes are basically compatible but you will get a better bond by
using the same stuff. Have fun-------------g
.
Gary:
I'm new to boating. One of these guys who's been reading for 10- years
and
is finally getting off of the proverbial pot!
There are several products on the market that claim a chemical solution
to
stripping and refinishing furniture grade wood. However, when I
refinished
the birch cabinetry in my house, I sanded and refinished with Varathane
Diamond Finish. It promises durability and UV protection, etc, etc. I
liked
the results so much, I refinished my front door the same way. Really
shines.
So my question is: Why not use this finish to refinish the wood on the
boat
I buy? Why is varnish being applied over and over again on boats, when
these
synthetic materials are available? Is there a hidden problem with them,
or
do old habits just die hard? It seems to protect the wood beneath
a...layer
of clear prtectant, like a basketball court.
The boat I like is the wood 36 Grand Banks. As a second choice The
"tri-cabin" style of the 70's appeals to me. Particularly the Trojan 36
tri
cabins. What's your opinion of these? When I am ready to move up, will
they
be impossible to sell because of the dated look? What is their REAL
price
range?
I like the style of the tri-cabins, but I like the operating economy and
easy re-sale of the GB's. Both of these choices are somewhat price
driven; I
have the money to maintain, but don't want to shell out over a hundred
k at
the purchase. Not for my first boat! I'll use a surveyor for both, of
course!
I'll be using the boat to cruise the Caribbean, and South Florida, with
from
2 to 4 aboard.What would YOUR choice be, in your infinite wisdom?! And
by the way, if your
desires were to cruise the Caribbean while keeping initial purchase
price
low, what would YOU choose to do it on? And don't say a sailboat!
Thanks,
John Morganfield
.
John:
Personally I don't think you can beat the Grand Banks, great
construction and good looks. Price range is totally dependent on your
finances and how ready the boat is to do what you want. As far as the
urethane finish is concerned, they do not let the wood breath which is
very important on boats because of constant expansion and contraction,
and they have little UV protection and break down quickly in direct
sunlight. Also many of the exotic woods, such as teak, that are used on
boats have a high natural oil content which is incompatible with
urethane. This is why either varnish or a natural oil are the preferred
finishes---------gary
.
HI: I have tried to revarnish a pair of old wooden paddles. One was
graying and lost much density to the wood. After sanding down to solid
wood, I applied a good quality spar varnish. The wood turned a dark
gray and not as nice as I wood have liked. My question is this; should
I have applied a sealer, stain, bleach, something to enhanced the
appearance prior to the varnish. Was there something I could have done
in the prep that would have helped?
Thanks
.
Hi.
Yes, old tired wood is difficult to finish especially with varnish
because the wood just absorbs it and stays dark. A sealer would have
helped to keep the wood from absorbing the varnish but the best for the
wood would be oil. After too many years some paddles have to retire and
become wall ornaments. For future reference, it is always best to use a
sealer on wood before you varnish or stain. It evens out the absorption
rate of the hard and soft grain in any piece of wood.-------------gary
.
Thank you for looking at my question.
I have a wooden Albacore dinghy being wintered and I am not sure
whether I should
a) Sand off all varnish and revarnish
b) Sand to key varnish and revarnish
c) Leave it until next year
Can you give me any tips as to what I should do please ?
Thanks
Mathew Kay
.
Mathew:
There is no sense in stripping off all the varnish unless it is
cracking and peeling. It would be best just to touch it up for this
year and if you want to make it all new next year plan a time to do it
and get all your varnish removers scrapers and sandpaper ahead of time
and maybe even find a good book on varnishing. Enjoy your boat and feel
free to ask more questions, the more specific the better-------gary
.
question: Hi:
I am refinishing a 1955 Criscraft outboard kit boat. The varnish on he
inside is lifting off with a putty knife (in most places). I lightly
sand the wood prior to finishing and I see little shiny spots like
there was random brass inside the wood. It is almost like pepper size
spots, random and nothing is attached on the outside that might have
used staples or something. They are numerous and totally random which
makes me think they are imbeded in the plywood used for the hull.
Also, the varnish on the floor of the boat and a bit up the sides is
markedly darker. It could be just that there are more layers or thicker
layers but my question is, is there something stronger that is put down
there as oposed to further up the sides of the boat, the seats etc?
Thanks for your input.
.
Can't say exactly but it sounds as though the
varnish that is lifting is applied to an incompatable surface, a
surface previously coated or impregnated with a plastic type substance.
The darker areas indicate the varnish was soaking into the wood as it
should rather than just sitting on the surface. Whatever is going on,
you didn't cause it. I would try to contact CCraft and see what they
say. Let me know if you get an answer------------gary
.
question: Gary,
Our client finished his toerail with 4 coats of epifanes and 2 coats of
two-part plyurethane varnish one year ago. He called us and said that
the glossy finish is gone and it looks a little yellow except when wet
from water, then it looks great. I haven't seen it yet, but if the base
is sound, shouldn't we just be able to lightly sand and apply a new top
coat or two? If so, do we need to use two-part poly again?(I've never
tried it) The owner called thinking that all the current finish needs
to come off and we need to start with bare wood, but says no bare wood
is currently showing. My guess is that it just needs a maintenance
coat. What do you think?
Thanks, Dave in Charleston,SC
.
Dave;
The epifane is a very fine oil based
varnish, not compatable with a polyurethane. This is the reason for the
problem plus the polyurethane is more sensitive to the suns UV rays and
will discolor. Some use a high UV regular varnish over a coat or two of
epoxy but I would not recommend either. You need to at least sand off
the urethane and add a couple more coats of epifane, but the bottom
line is to know that you have solved the problem you probably should
wood it out and just go with the epifane----------good luck------g
.
question: I have a 65 Owens 30' that I picked up this year. So over
the winter
I have taken the mahagany rails off to refinish. I have spriped them
down as best I can but I still have dark areas down in the grain.
What is the best way to clean this up. Also when I refinish the wood
do I need to stain or oil the wood before I varnish it.
Thank You
Dale
.
Dale;
Nice boat, I've worked on many over the
years. Usually with mahogany that's been exposed to the weather for
years, whether well protected or not, will get areas of deep
discoloration. The best you can do after stripping down to bare wood is
to use wood bleach(oxalic acid) over the whole piece, paying special
attention to the stained areas. Than, to get an even color you should
first use a clear wood sealer, after drying and sanding, apply a
mahogany stain, red or brown, and then when you get the color you like,
finish with at least 4 coats of a good UV rated Varnish.. The sealer is
used to fill the grain so the stain soaks in evenly rather than
blotching because of the different absorption rates of the soft and
hard grain. Enjoy your new old boat. Fell free to ask more as
needed-----g
.
question: Gary: Using an excellent varnish on a re-do of a 1968 CC 17' Grand Prix. Aside from thinning the varnish, how do I best get rid of the fine bubbles. When I sand with 1000 grit after drying, I, of course,
get the shaded areas which cannot be just washed out. Trying to understand wet sanding also. How to, etc. Thanks
Bob
.
Bob
Spend the money for a badger hair brush and add a bit of Penetrol. Also if you want a non blotchy even color, caused by the varnish absorbing into the soft grain more than the hard, use a wood sealer before you varnish.and or before you stain.----no real trick to wet sanding, just get the proper emery cloth and dip it in water and sand with the grain, although many prefer using a very fine bronze wool instead.------have fun------gary
.
question: I just put a glossy stain polyurethane on a pine table, but I wish I would have used satin. Can I put satin polyurethane over the glossy to obtain a less shiny surface?
.
Sure can, just fine sand or steel wool to take the gloss out first. Actually
in the cabin sole of boats gloss varnish is laid first to create a hard base
and then a matte finish is laid over that so when wet the floor is not
slippery underfoot.--gary
.
WATER STAIN TEAK 1
.
I bought an older boat, a 28 foot aloha. She checked OK on the
survey just two small wet spots on the deck that I was told would be OK
for a year or two. I am hoping to fix them this spring....
My question is this, on the interior they had some bad leaks and now
that the teak is dry it is very ugly and black. What can I do to
correct this without ripping out the whole wall or panel?
Thanks, Kathay
.
Kathay:
Nice boat! Unfortunately the teak is probably just a veneer so you
can't vigorously go after the stains. I would carefully sand off what
varnish is left and try some oxalic acid bleach, available at any
hardware store. It may take several applications. If that doesn't work
you can either paint it or cover it with some useful small cabinet or
art object. If it were solid teak you could just sand and refinish.
Have fun with your new old boat. You might like this site
www.goodoldboat.com: The Sailing Magazine for the Rest of Us
----------gary
.
WILL THE MAST MATE WORK IF ? 2
.
question: I've been putting off for too long a
way to get up the mast to deal with a crisis situation in the rigging.
However, I am skeptical about one thing: What happens if the problem is
my main halyard becoming fouled or parting? If the mainsail cannot be
struck, or if the halyard cannot bring down the head of th mailsail, or
if the main halyard jams or parts -- well, it look to me as if one
should still have a good bosun's chair on board, contrary to your
implication that the Mast Mate substitutes for it in all particulars.
Is there a way in which the Mast Mate nevertheless can be deployed
without the main halyard? The only way I can imagine this in the
scenarios I have described is to use the topping lift, if its cordage
is strong enough, to lift the Mast Mate. In cases where the main cannot
be struck, this would involve, contrary to your admonition, the need to
raise the Mast Mate without fitting its lugs into the luff track.
However, on my sloop, the topping lift is a fixed S/S cable with only a
terminating block through which a line is run to raise and lower the
boom. Any comments, suggestions, or new perspectives on these
conundrums would be deeply appreciated.Jerry
Donaldson
.
Jerry:
Good questions. I don't think I say anywhere to banish one's bosun's
chair to a landlocked closet, in fact, one can use it in conjunction
with the Mast Mate in several ways. Now to your conundrum. Yes, if the
mainsail is stuck or your halyard parts, you are in a bit of a pickle.
However several single handers have told me they have used the mast
mate unattached to the track by tying it off around the mast in several
spots as they ascend and doing the opposite as they descend. Not pretty
but they said it worked. With the main halyard out of commission and if
you have a masthead rig, the jib halyard would be the line of choice to
raise the MM, but as you stated, the topping lift, if stout enough and
is lead from a masthead block down the mast, can also be used. I always
prefer the topping lift arranged in this fashion because it is nice to
have an emergency halyard available.
Of course the salesman in me says, if you had a Mast Mate in the first
place, being that it is so simple to use by oneself, you would keep up
the maintenance on the mast track and masthead shivs and pulleys and
the likelihood of a main stuck mishap would be much reduced. I hope
this is an adequate response and convinces you to buy a Mast Mate
which, when not in use, could be stowed neatly next to your bosun's
chair.-------------gary
.
Not only am I convinced by the last paragraph
in particular, but it is the
quality of the gentleman with his candor and honesty lying behind the
product
which also convinces me. Now to find the most suitable bosun's chair
for storing
my Mast Mate . . . .
Jerry Donaldson
P.S. In thinking and reading the comments of others on your web site,
Gary, I'm
also convinced that the most important thing you can do for personal
safety is to
use the unrebutted PRINCIPLE OF REDUNDANCY, viz., don't rely on only
one safety
strategy, but always overlay it with another so that one increases the
fail-safe
character of a dangerous proposition. For example, I've been sitting
here
thinking that ascent on the Mast Mate should be accompanied by (a)
wearing a
safety harness tethered to halyard paid out around a winch and cleat by
a hand on
deck and/or (b) a strap-like bosun's seat similar to the ones used by
window
washers so that climbing isn't inhibited by, especially, a hard-seat
bosun's
chair. And I say "and/or" because if it were possible not to get
entangled in
TWO halyards going up, I'd be tempted to wear BOTH the harness AND the
soft
bosun's seat! I have absolutely no illusions at 57 about the potential
for
injury and the extent to which one is vulnerable -- in January '99, I
slipped on
ice on deck and broke the right fibula at the ankle clean through. Now
I have a
5-inch titanium plate and 7 screws there. I've recovered almost 100
percent and
have been back running my 3 miles a day since June '99, but, as I said,
I do not
underestimate the potential for danger doing anything on board a small
boat, much
less going aloft
.
Gerry:
Life is a risky business especially when your 40ft up a mast, so of
course anything one can do that sensibly reduces that risk is a good
idea. However, I have noticed in my own desire to have safety first,
that the very safety device or configuration thereof can increase
rather than reduce the risk. You will notice when climbing the Mast
Mate, your body being upright, close to the mast with hands head high
around the mast, you are in a very good position to react quickly and
help yourself if something goes amiss. Also, one certain advantage of
the MM is going loft alone which eliminates the easy use of backup
safety lines. Although I certainly recommend safety first, I stay away
from recommending how to accomplish this, for I think it more prudent
to leave that to the creativity and common sense of the individual
sailor. Fortunately sailors as a lot, at least the ones who buy the MM,
seem overall to be a sensible and inventive group. I would be most
interested on your feedback after you have used the MM a few
times.--------gary
.
I have a Beneteau 36cc with in mast roller furling. Will the mast
mate work
on a mast with a wide slot like mine where the sail actually goes into
the
mast? If so, will I have to take the mainsail down when I use the mast
mate
or can I just roll it up?
Charles
.
Charles:
I appreciate your interest in the Mast Mate, but unfortunately it
cannot work with the in mast roller furling system. Some sailors with
that system add an off center external track, both for a back up main
and to use the Mast Mate. Fair winds----Gary
.
WOODEN BOAT STORAGE 2
.
Hello:
I have a WIlliam Garden design 37' "wanderbird" sailing ketch. She was
built in Hong Kong in 1969 and is teak planked on Ipol frames with teak
decks and spruce masts.
I am a Navy Officer who is going to be going to Italy for a couple of
years and am looking at option for storage of my boat in the meantime. I
am curious as to whether I can safely put this vessel in dry storage for
several years without damaging the hull since it has been in the water
for
years with the exception of its normal bottom painting haul outs.
I know that if I do this that I would likely have to recaulk the hull
planks but am more concerned about any cracking of planks, cracking
around
the copper rivets etc.
So I am requesting your opinion on doing this. The boat would be stored
either in North Carolina, where it is currently moored or up on the
Chesapeake near Oxford Md.
Thanks
Chuck Rhodes
Cedar Point, NC
.
Chuck:
Nice boat. The problem with long term dry storage of a wood boat is
that you don't really know the effects until you do it and than it is
too late. I can't really say it would be OK and personally I wouldn't
do it. I would try to find a cheap way to get it to Italy, great
sailing there. For what you would end up paying for dry storage you
could probably put it on a freighter or persuade the Navy to put it
aboard one of their many ships. I hope this is of some help. Oh, one
other option, you could get it up here to Maine and I'll take care of
it for you------------------Gary
.
I have a 24 wood skif stern drive boat last fall
when the boat was put away for winter I removed the outdrive for repair
over the winter. In the spring the outdrive will not go on . With my
alinement tool it is telling me the eng. is to high. what do I do to
get the boat back in shape on land?
Thanks dave
.
Hi:
Yes, the boat changed shape and unfortunately the only way to get it
back is to put it back in the water with the engine in it.What I would
do is put the outdrive where it belongs and block and wedge the engine
in position such that it lines up with the outdrive.Put the boat in the
water and after the boat has sat for a week or so everything should go
back to where it was and you can mount the engine properly.----good
luck-------gary
.
WOOD SPARS 3
.
Howdy! I'm refurbishing a wood rig to put on my steel project boat. It's from a "Force Fifty" ketch, a Taiwan boat of 70's vintage, so it's not spruce. Whatever the wood is, it's very straight grained and totally clear, and all the glue joints look just fine It had termite damage in the partners area, which I took care of by scarfing in new wood (I used fir). I've got it all Painted up and nearly ready to step. I heard that wood rigs can get dry rot on the inside and fail without warning. Is this true? I've sealed up all places where moisture could get in. Is there any chemical that I could spray through holes into the hollow spaces to prevent rot? Sure would appreciate any thoughts on this. By the way, the boat is a Hartog design. I understand he was a Bay area guy (died a few years ago). It, s not bad looking for a steel boat-traditional looking with a canoe stern.
.
Hi;
Nice project. I have never heard of wooden mast failure do to internal
rot but I suppose if rainwater got in there it could happen. The best
preventative is to keep the fresh water out, but if you want to spray
something in there use copernal ,it is copper based and a wood
preservative and is available through any hardware or paint store. Good
luck---gary
.
Gary, Thanks a lot for the advice regarding copernal, and keeping freshwater out. By the way, Did I mention it's a rig from a Taiwan boat. Do you happen to know what kind of wood it would be and it's properties? It's definitely not spruce, but is clear and straight grained and quite a bit lighter and softer than fir.
.
Your welcome and I am not familiar with what they use for spars, but you might ask that question on the cruising world bulletin board, I am sure you would get a response. Here's the hyperlink CW/SW General Messages Board - Message Index ----gary
.
I am the proud new owner of a 1947 wood Star Class boat. It hasn't
been
in the water for nearly 15 years and came with a broken mast. The boat
is sound and I am now trying to determine whether I can repair the mast.
A friend suggested that I ask your opinion.
The mast is 33 feet. The break (the mast is fractured but not broken
off) is 10 feet or so from the top where the diameter is aproximately 9
inches. A friend has spruce available for the repairs.
What would you recommend? If you recommend the repair, do you know of a
good book or article?
Thanks for any advise you can offer.
.
Dick;
So, you are the proud owner of a classic, now the work begins. I am
sure there is a way to repair the mast by scarfing in a new top piece.
If it is hollow with the two halves glued together extend one half 4
feet beyond the break and the other a foot or so. Where it joins the
original mast your scarf should be 12 to 1 i.e. 4in radius=48in scarf.
So if one half is joined to the original 4 feet beyond the break, which
means you cut out 4 feet of the original, and the scarf is 48in you are
extending the new half about 8 feet into the original, plenty strong.
The other half starting one foot beyond the break, would extend 5 ft
beyond the break. I assume the mast is tapered so you would have to
shape your stock accordingly. You may have to laminate some pieces to
get the thickness you need. Use a good epoxy glue and plenty of clamps,
hose clamps come in real handy. Check the archives at
www.woodenboat.com for articles on mast building and repair and also
get further advice at www.boatbuilding .com. good luck----gary
.
I recently acquired a 1967 24' cascade sailboat. Currently my wooden
mast
is laying in 3 peices on my basement floor. I'm not rich but I need to
know how to make another wooden mast to replace the old one for the
cheapest amount possible.
Any help you could give pointing me in the right direction would be much
appreciated.
David Saxon
.
David:
The first question is, is the old mast broken or merely come apart at
the glue joints? Can you get accurate measurements from
it?----------gary
.
The mast was cut into thirds before I got the boat. I already got an
accurate measurement of
32' 4". I have all three pieces in my basement.
.
David;
OK, there is no saving it, so your choices are to look for a salvage
job with a mast, aluminum or wood, the right height or build one out of
wood. Usually wood masts of that height are 4 sided glued tapered boxes
with the aft side, where the sail goes, being perpendicularly true. The
hardest part is having a flat level bench to build it on and having
sufficient clamps, although I usually make the clamps out 2x4s and
threaded rod as well as using large hose clamps. The next problem is
finding the wood. Sitka spruce is the ideal choice because it's
strength to weight ratio is ideal, but clear grain quarter sawn fur is
OK.The mast is simply a tapered hollow box
with solid wood blocks placed internally at attachment areas i.e. where
the spreaders attach, at the top and, if it is stepped on the keel
there is a solid block extending from the base up to a little beyond
the winches, this is also the case if the mast is stepped on deck. The
step by step process is a bit much to get into here plus there have
been several articles in Wooden Boat magazine detailing what must be
done. I suggest you go to www.woodenboat.com and check their archives
and also their book selections. I hope this has been helpful and feel
free to ask more questions.--------gary.
.
question: Hi,
I have a funny story and a question. I was looking at a wonderful steel cutter, 33', serious bluewater boat built in Germany. She has wooden spars. I noticed two spots on the mast, just above the spreaders and below the running backstay attachments. But I was busy doing a 30' buyers survey before the broker arrived, I thought no more of the worn spots on the mast. Later, while negociating with the broker, I heard some tapping sound coming from aloft. The worn spots in the mast were being caused by two woodpeckers, who, from where I stood, were making a real mess of this otherwise sound spruce mast. The only good to come out of it was the broker agreeing to a significant reduction in price, due to the woodpeckers damage.
I wont be able to work on the boat till the beginning of April. In the meantime, the broker has promised to atleast try to keep the woodpeckers off the mast. If it is simply a matter of scarphing in some wood, which kind of adhesive would you use? Epoxy? Recorcinol? 3M 5200?
Also, worst case scenario, can you recommend a decent shipwright in SW Florida who could make me a new spruce mast? What do you think this might cost on average? The mast is keel stepped, and is likely 36' above deck, for a total of around 42'+/-.
Thanks alot for your help.
ps. Do you know of any nice, 30footish, sound wooden yachts for sailing and living aboard in your area?
.
Hi:
Quite a story. There are always 30ft wood boats of all sorts for sale around here but nothing like you find throughout Florida, although, because of the climate, those here might be in a bit better condition. If the damage to the mast is strictly Woodpecker pecking, the fix is basically just cosmetic, but if Rot has developed you may have to splice in a few new pieces. Epoxy glue is the best adhesive for this. The mast is probably 4 sided hollow, so the scarfing would most likely be on just one side. Scarfs should be at least 12 to 1--ie. 1in thick wood, 12inch scarf. I am not familiar with craftsman in your area but I suggest you tackle the job yourself. Good luck and feel free to ask more as needed..-------gary
.
SINGLE-HANDED RESOURCE PAGE.
|
|
|
|
|
|
|
|
|
|
|
|