You might get away with your idea for repair.
I think you would be better off if you did a more thorough check and repair
of the transom. A boat that old might have hidden damage to the wood that
you won't see unless you start poking around. I think I'd seriously consider
cutting away the transom up to 2" all around the drain hole for inspection.
If everything's OK, you can rebuild that portion and install a new drain
fitting. If you find more rot, you can schedule the time for more repair.


"Chris" wrote in message
.. .
hi again,

I've got yet another interesting question which some of you with more
experience can likely say a few words to... I was out testing my project
boat on the trailer, and ensuring the bilge pump would work right by
putting the plug in the boat and filling the back end with a few inches of
water. Well the bilge pump works great, however, when putting the boat
plug in I felt that the wood between the inner and outer fiberglass was a
wee bit slimy and the hole perhaps not as narrow as I'd like to have to
ensure the plug stays in securely.

What can I do here to fix this up?

An idea was to get some fiberglass resin and put a thin coat in the hole
as to seal things, narrow up the hole width, and strengthen the inner hole
for the plug.

Or perhaps a newer plug would be a big thicker...

btw, the boat is a 70's era 15.5 fiberglass.

I feel that the rest of the transom is fine, just this part around the
hole seems to be a bit questionable.

thanks
Chris