carvel planked, double ender repair and restoration...

RLWelch

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Hello, so we have our first boat... a 1960's "Fiskari" (Fisherman's) motor boat and need some advice and expertise on repairs and restoration. I am a musical instrument repairer by trade so feel my woodworking skills will be adaquate for the more simple repairs.

Built in the Hamina region on the finnish baltic coast, 7.8m (26ft) carvel planked double ender, pine on oak frames, with mahogany and oregon pine decking. Cabin and wheelhouse top are ply and possibly fibreglass, with mahogany sides/coaming. Oak or ash rubrails. 33hp Vetus/Mitsubishi marine diesel with fresh water cooling.

She's been up on the lakes for the last 20 years or so and now we have got her back down to the coast. For the last 3 years at least she has been completely neglected, (possibly longer has the log stops in 1998) except for a free hand with the sikaflex, but has been on the water every season.

Photos of all the problems I have found so far can be seen here.... AMELLA
We want to get her on the water this season as it's the only way to get to know what we are really dealing with. This winter we can put her indoors and take care of any serious problems.

The planking on the whole seems sound and tight but badly discolored. The frames alternate between quite heavy and light, and I have found one of the lighter frames cracked through above the boot top. (the plank behind the break seems a bit swollen and the end is a little proud of the hull) Another frame is split about half way through it's thickness at the bilge end of the frame. (the lighter frames do not actually meet the kelson) I was thinking of just refastening the split frame and sistering the broken one for now.

Have found one serious piece of rot on the sternpost?? stem?? (sorry, not really up on the terminology) An area of about 6 inches of black powdery wood. The stem seems to be made up of three separate parts and the rot is on the outer part of the uppermost piece. The adjacent wood is sound. (on the surface anyway) I was wondering if it would be advisable to just stabilise the rot with epoxy until we can her get indoors and graft on a new section? Or do you think I should cut away the rot and graft a new piece in before going on the water, to prevent any further deterioration?? I have no idea what this will entail. The top 4 or five planks which are fixed to this section seemt to be tight and well fastend.

The other major concern is the deadwood, which seems a little soft. I scraped off the soft surface fibres back down to hard wood. Not sure if that was the right thing to do?? Don't know what to do about it?
The wood around the stern tube seems OK but there has been some metal reinforcing straps that look as if they are not part of the original set up. (now I am lost for names...) The propshaft bearing? is bolted to/through a metal housing that covers the wood that contains the stern tube... wonder if that is original too... I fear it is some kind of addition also.

Any advice on how to proceed would be greatly appreciated. My budget is at a minimum but I am willing to invest the time and money to get everything back into order eventually...

My first thought is to soak the inside of the planking with some kind of penertrating oil, scrape the paint off the bottom, (it is painted with Ferrex metal primer, with as far as I know is completely porous??) A quick scrape of all the not so brightwork, get rid of the sikaflex, then a liberal application of oil all over, some antifouling and a good coating of Le Tonkinois. As there is so much staining on the hull we may paint it anyway, when we get everything up to scratch.

All and any ideas would really help...

Thanks... rod.
 
Congratulations on your new toy. You are more fortunate than many with your wood working skills.
May I make a couple of suggestions?
Firstly, don't use epoxy on the rotten deadwood near the propellor. Remove the paint carefully and once the wood has had a chance to lose the moisture trapped behind the paint then apply generously a product such as Cuprinol 5 star to kill any rot once this has dried then you can apply a product such as Ronseal wood hardner. Keep putting coats of the wood hardner on till it won't absorb any more. Then once this is dried you can apply the paint system of your choice.
I totally agree with your idea of using the boat to identify problems. Don't worry too much about the cracked frames unless you plan to go out in interesting weather. You will find on a boat of this sort of age the planking has adopted the correct shape and should stay put.
If you are concerned about the area where the frame has failed then certainly have a closer look at this.
Best of luck.
 
Thanks Alan...

No I wasn't thinking of putting epoxy on the deadwood... I meant on the stem... Apparently what I called the deadwood is part of the keel??? which is a bit worrying!! I go down this weekend, so I can have a proper look. We only had a few hours when I took the photos.

Not heard of either of those products and not sure we can get them here in Finland but I'll have a look. The wood hardener seems to be a polyurethane resin...

Yeah, someone else has also said to not worry about the frames much at this point...

cheers, rod..
 
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