Chris,
The drain plug should not go directly into the aft end. Not only will it
leak, but the water will wick through the plywood and rot it. You need to
buy a 1-inch brass tube and epoxy it into the drain hole. Now the rubber
expansion plug will fit snug.

Here's one.
http://www.outdoorsuperstore.com/sto...=DRAI N+TUBES

You can make your own after a visit to a plumbing supply store. In a pinch,
you could use a piece of PVC, but because of the thickness of the material,
you'd need to enlarge the hole.




"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