transom repair

Ezrider_92356

Chief Petty Officer
Joined
Jul 14, 2007
Messages
426
i know i havent posted here in a while, been to bussy to make much progress on the boat. well anyway almost all of the old wood out just have a thin layer and little peices left stuck to the outter skin, i noticed that the transom outter skin is quite thin and flimsy, that kinda throws a wrench in my plan, it is a curved transom i was planning on layering in 1/4 inch ply and clamping to the outer skin to get the desired shape, im afraid if i do this its going to distort the outer skin more than it bends the ply if that happens my splashwell will not fit right. i figured some of the experts here might have some idea's. only thing i could realy think of is to biuld up a few extra layers of f/g on the inside of the outter skin before trying to biuld the transom
 

TheWoodCrafter

Chief Petty Officer
Joined
Nov 20, 2007
Messages
414
Re: transom repair

Not boat related but I do a lot of curved work in my business, cabinetry and furniture. We make curved ribs, run horizontal, inside and out. Cut from scrap plywood with a jigsaw. That would hold things together for you till the glue drys.
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: transom repair

curved....?

is that bowed?

can you post pics?

as far as the flimsy part...yup....
and you might want to consider seacast. from what i hear...(i have not used it and know little of it) it works well

cheers
oops
 

Ezrider_92356

Chief Petty Officer
Joined
Jul 14, 2007
Messages
426
Re: transom repair

you can kinda see it in this pic, i dont realy have http://s11.photobucket.com/albums/a170/Ezrider_42101/?action=view&current=100_0132.jpg
any that show the curve.

its not like a huge curve, if it stops raining i might get out to the garage and get a pic, its a little late for sea cast as i already pulled the inner skin and thewood core out, so theres no way to reconstruct the inner skin to pour the sea cast
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: transom repair

i dont think you would need an inner skin...just a barrier of some sort....

but looking at the pic.....(thanks)

i would just build up a few layers of glass to fill out the bow as it doesnt look too bad......or sand the heck outta the new transom till you get the right curve
 

Ezrider_92356

Chief Petty Officer
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Jul 14, 2007
Messages
426
Re: transom repair

the inner side of the transom needs to have the curve as well otherwise ill have to modify the slashwell as well, the spashwell is removed right now. but it has a peice of wood that has the same curve as the transom and the upper motor bolts bolt threw that peice of wood and into the splashwell. i planned on using 4 layers of 1/4 becouse it would be alot easyer to bend that using 3/4 the orrigional construction used 1/4 inch. im thinking if i can scribe the curve onto maby 3 2by4's cut with a jig saw. then thoughs could go on in the inside then i could use 3 straight ones on the outside with blocks holding it out away from the boat. one clamped along the top, one with a bolt threw the spashwell drain hole, and one threw the drain plug, then i can bolt a 2x4 threw the transom hook holes to clamp the outter edges
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: transom repair

can you just add a curved part at the splash well joint? instead of curving the whole inner and outter?...


...man thats a real pita
 

Ezrider_92356

Chief Petty Officer
Joined
Jul 14, 2007
Messages
426
Re: transom repair

if im understanding your question correctly no becouse the outter skin in curved and the transom cap is part of the splashwell. its not a huge curve maby 2-3 inch defelction
 

Gary H NC

Fleet Admiral
Joined
Dec 1, 2005
Messages
8,972
Re: transom repair

My question would be is the transom curved due to the weight of the engine and a rotted transom? If i understand what you are explaining..
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: transom repair

so the whole thing is concave..inner and outter......man what a drag.

wood can be bent with steam...but it takes a while then you gotta re dry it....could be built in the craft a layer at a time.....with thinner wood then keep layering......without a full fledged wood shop......man...a real pita !
 

Ezrider_92356

Chief Petty Officer
Joined
Jul 14, 2007
Messages
426
Re: transom repair

its not curved becouse of rot its curved by design, like i said its not like im trying to make a compleet half circle more like 3 inches of defection over a 6 foot span. 1/4 inch ply can make that without steaming or too much effort its just trying to figure out a way to clamp it while it cures. when ripping it all apart i figued the outter skin would have enough streight to bend the wood, but after getting all the old wood out and seeing how flimsy the outter skin is, i can basicly throw that idea out the window.

i can say though ill never buy another boat with a curved transom
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: transom repair

if you were to drill thru hull holes.....then go 1/4 inch at a time..bolting it in place with long bolts and big washers......

then......glassing...wait till cure...next layer...keep repeating till the desired tickness.....lotta putzin around...but it will never fail...

HEY...ya know what? ...td has done many restos...hes the top expert here.....ill bet he has run into this....he may have turned away from the boat...but pm him and ask him to look...
 

jcsercsa

Captain
Joined
May 21, 2007
Messages
3,401
Re: transom repair

man that really stinks , man oops beat me to it was going to say glass after every piece of 1/4 !!!! good luck !! John
 

Coors

Captain
Joined
Dec 8, 2006
Messages
3,367
Re: transom repair

Could you cut the curve in some 2x8's, brass bolt through them from the inside, build the transom, then cut off the bolts, drill them out, and epoxy/marine tex the holes on the outside?
 

TheWoodCrafter

Chief Petty Officer
Joined
Nov 20, 2007
Messages
414
Re: transom repair

I think I would try building the transom laminates outside the boat. Then slip it in as you would regular 3/4" plywood. You would need to make thoughs male and female curved ribs. Lay up all the pieces at one time clamp and weight the whole thing between the rib (cauls). Then reuse them on the outside of the existing fiberglass transon to glass it in.
 

qaztwo

Petty Officer 1st Class
Joined
Jun 26, 2004
Messages
384
Re: transom repair

You could use 1/4 inch ply and cut 1/8 slits in the back of it to aid in the bendingand build it up. Place one sheet in at a time and brace it untill dried.
 
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