Thread: Replacing transom

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Besides your plywood....I would put some sturdy aluminum braces on it each side of where motor mounts from top of transom to a rib or something in the bottom of boat

Rather than Thompson, I would get fiberglass resin and hardener. I would seal it real good with that and never have to worry about it again.

Like Cray said...fiberglass resin and hardner...you can thin it some with a little acetone to make it easier to paint on. You can actually glue the 2 pieces of plywood together with fiberglass resin.

Id be looking at replacing what was, how it was, not be re engineering it.
About 15 years ago I replaced the wood on the inside of my 60s era Grumman 12 footer transom.
I just used a 2x10 pc of pressure treated lumber to replace the 2 layer plwood pc I removed, which did not extend to the bottom of the transom
It still looks like the day I did it, with no epoxy or any other adhesive used to attach it to the aluminum other than the screws from the outside above the water line as had been used originally.
The small pad on the outside for the motor to rest on was originally made of Masonite, which had also deteriated.
I replaced that with a pc of heavy rubber made from a damaged mud flap from a large truck and again its held up very well and cost nothing.