Transom rebuild thread
 

I have started to notice some weakness in the transom of my 18'. Does anyone recall the good transom repair threads? I seem to recall one where the outer skin was removed instead of getting into the inner liner. I am having a hard time finding them with the search function.

Re: Transom rebuild thread
 

I may be wrong, but I think Strick's rebuild of his 20' was an "outside-in." If not, I remember that there was so much discussion of glassing and loads, even if it wasn't an "outside-in", you should definitely read trough it for educational purposes. It is called "Here we go again."

Re: Transom rebuild thread
 

OldBluesPlayer and Fishjack did transoms from the outside. I'm in the process of doing one now and raising it 5". I can start a thread if you like.

Re: Transom rebuild thread
 

Please do, Tim. I'll be doing that soon as I repower - could be sooner than expected if gas keeps going up. What's the new project?

Re: Transom rebuild thread
 

That would be great. Everyone, thanks for the help.

Re: Transom rebuild thread
 

Don't know if mine is a good transom replacement thread or not, but I have a slide show of the outside in replacement project that I did on my 1976 20SF. Only problem is I set it up using Adobe's Photoshop Album 2.0 Starter Edition (read-free software) and it's a large file and I can't seem to upload it in to Photobucket, etc. Any work arounds to that, and I'll post it their.

Re: Transom rebuild thread
 

My 1978 18 got a new raised foam transom from the inside. I will attempt to post photos. http://i262.photobuck http://s262.photobucket.com/albums/i...ruz/th_sc3.jpg [image]The aft decks were removes as was the well.http://s262.photobucket.com/albums/i...ruz/th_sc3.jpg[/image] http://s262.photobucket.com/albums/i...ruz/th_sc4.jpg http://s262.photobucket.com/albums/i...ruz/th_sca.jpg http://s262.photobucket.com/albums/i...Seacraft-1.jpg [image]The foam is not as rigid as plywood so some additional structure inside was needed.http://s262.photobucket.com/albums/i...ruz/th_sc5.jpg[/image] http://s262.photobucket.com/albums/i...ruz/th_scb.jpg http://s262.photobucket.com/albums/i...uz/th_sc10.jpg http://s262.photobucket.com/albums/i...ruz/th_sc9.jpg et.com/albums/ii113/keyscruz/sc.jpg
The boat is now mostly back together. It has an etec 150 and it survived itsfirst outing into rough water with no signs of stress.

Re: Transom rebuild thread
 

I would really like to close it in and add a bracket if I'm going to tear into it.. Do you have photos of the finished product?

Re: Transom rebuild thread
 

Here's a few shots from some of the work. It's not going to be a how to . . . deal, but you can at least see what I'm doing with the inside skin raising it up 5". It's ugly now . . . but the fairing will clean that right up. The bottom is back filled with a mix of 1/2" chopped strand and cabosil and enough just resin to wet it all out.

http://www.wellcraftv20.com/gallery/...461_Medium.jpg
http://www.wellcraftv20.com/gallery/...460_Medium.jpg


http://www.wellcraftv20.com/gallery/...422_Medium.jpg
http://www.wellcraftv20.com/gallery/...450_Medium.jpg
http://www.wellcraftv20.com/gallery/...451_Medium.jpg
http://www.wellcraftv20.com/gallery/...448_Medium.jpg

Re: Transom rebuild thread
 

Also . . . Here's Hammer's 20 . . . transom done from the outside.

http://www.classicseacraft.com/197120CC/medium/0008.jpg
http://www.classicseacraft.com/197120CC/medium/0009.jpg
http://www.classicseacraft.com/197120CC/medium/0010.jpg
http://www.classicseacraft.com/197120CC/medium/0011.jpg
http://www.classicseacraft.com/197120CC/medium/0012.jpg
http://www.classicseacraft.com/197120CC/medium/0013.jpg
http://www.classicseacraft.com/197120CC/medium/0020.jpg
http://www.classicseacraft.com/197120CC/medium/0027.jpg

Re: Transom rebuild thread
 

Also - After some experimenting . . . I was able to match the white gelcoat color. You can see a few shades of white in the repair . . . but if you look inside the red square . . . you can see the color match. It's a white base gelcoat with a little bit of halyard white pigment. I try to quantify the "little bit" in my next batch. I think it amounted to roughly 1 teaspoon :) I just started with a few drops in a quart and kept adding samples on top of an existing piece until I had a close match. Took a few tries, but I think I got it with the color in the red square.

http://www.wellcraftv20.com/gallery/...nsom_color.jpg

Re: Transom rebuild thread
 

Here are a few pictures of the transom project I did on my SeaCraft. Removed all of the old transom wood, discovered that the inner layer of glass (mat) was not bonded at the bottom or to much of the transom, so I cut most of it away, raised it to 25", replaced with 2 layers of Penske Board, used MAS Epoxy and 1708 and 1808. I set the new transom height a little high and cut it to the exact height after the initial layers (4 inside the splashwell, 4 outside) were in place. I also glassed the remaining inner skin to inner face of the Penske Board and addded a support knee. I added another 4 layers inside and out where I thought the most stress would be, and I carried that glass over the top of the 25" cut. I filled the fabric with a mixture of micro ballons, cab-o-sil and epoxy and faired with QuikFair. Paint was Interlux Perfection.

http://img.photobucket.com/albums/v2...transom/17.jpg

[image]http://http://img.photobucket.com/albums/v2...transom/20.jpg[/image]

[image]http://img.photobucket.com/albums/v2...transom/23.jpg[/image]



[image]http://img.photobucket.com/albums/v2...transom/28.jpg[/image]

[image]http://img.photobucket.com/albums/v2...transom/40.jpg[/image]

[image]http://img.photobucket.com/albums/v2...transom/33.jpg[/image] [image]http://img.photobucket.com/albums/v2...transom/66.jpg[/image]
[image]http://img.photobucket.com/albums/v2...transom/49.jpg[/image] [image]http://img.photobucket.com/albums/v2...transom/75.jpg[/image]
[image]http://img.photobucket.com/albums/v2...transom/83.jpg[/image] [image]http://[/image] [image]http://img.photobucket.com/albums/v2...transom/84.jpg[/image]

Re: Transom rebuild thread
 

If your doing an outer type transom rebuild, make sure to check the glass on the inside. Even in "hallowed" seacrafts, I have seen quite a few voids and dry spots on the inside. Mine had an area 12x16" on one side that was not stuck to the wood, and was not wetted out very well. The outer doesn't seem to have the same problems. If I was closing in a transom, I would probably do it from the inside, if I was just redoing a notched transom, that I think the outside would be the way to go.

Re: Transom rebuild thread
 

I did mine from the outside in and really stiffened it with a knee glassed to the keel. Seemed at the time it was an easier way to keep everything straight. Of course finding this site before beginning the work would have been great. I would have added 5 inches to the motor mounting height as everyone advises.

Re: Transom rebuild thread
 

I copied Hammer and Dcobbett ;) Raised mine 5" and it came out nice.
http://i155.photobucket.com/albums/s...Picture012.jpg
http://i155.photobucket.com/albums/s...Picture020.jpg
http://i155.photobucket.com/albums/s...Picture028.jpg
http://i155.photobucket.com/albums/s...Picture034.jpg
http://i155.photobucket.com/albums/s...Picture041.jpg
http://i155.photobucket.com/albums/s...Picture048.jpg
http://i155.photobucket.com/albums/s.../Paint/19a.jpg

Re: Transom rebuild thread
 

Wow . . . some very nice work above.

Here's some of the more recent pics of the work I'm doing for Duane Benoit. The new owner of my 20MA :) Got the transom raised 5", the new marine plywood installed, and the old skin bonded pretty evenly. Tomorrow it's time to grind, glass and fair it all smooth :)

http://www.wellcraftv20.com/gallery/...7/DSCN5875.jpg
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http://www.wellcraftv20.com/gallery/...463_Medium.jpg
http://www.wellcraftv20.com/gallery/...472_Medium.jpg
http://www.wellcraftv20.com/gallery/...475_Medium.jpg
http://www.wellcraftv20.com/gallery/...483_Medium.jpg
http://www.wellcraftv20.com/gallery/...503_Medium.jpg
http://www.wellcraftv20.com/gallery/...504_Medium.jpg
http://www.wellcraftv20.com/gallery/...507_Medium.jpg
http://www.wellcraftv20.com/gallery/...512_Medium.jpg

Re: Transom rebuild thread
 

Next step will look like this one . . .

http://www.classicseacraft.com/197120CC/medium/0011.jpg

Re: Transom rebuild thread
 

i see you used old outer skin how did you attach to new transom

Re: Transom rebuild thread
 

1 layer of 1.5oz mat over the wood . . . I had to build up some of the areas so that the skin would sit level. Some places have 3 or 4 layers of mat underneath. While the core was wet, I wet out the backside of the old skin with resin. Then I used a notch trowel to cover the entire inside of the outter skin with a cabosil/resin paste. I fit the skin and worked it into place(removing air bubbles). The old skin had plenty of holes to release any trapped air. I used blocks of wood and drywall screws to hold it in place until it cure. Then I filled each hole.

Re: Transom rebuild thread
 

http://www.wellcraftv20.com/gallery/...592_Medium.jpg