Originally Posted by Don Lucas
Answer is NO, you need to haul it and repair the problem. Anything you use to try to save the rotten wood is a bandaid fix to be fixed correctly later.
Don is absolutely right.
Haul it, repair it properly with a new proper sea cock and move on.
Anything below the water line is too improtant to your safety
to play around with. Fix it right, then splash the boat knowing your safe even if the seacock is a little hard to move next time it won't come off in your hands.
When I say "Proper Seacock: I mean a bronze one with through bolts.
Make sure you drill the holes oversize then fill in the area with new epoxy
filler. Redrill the holes through the epoxy to the right size and install everything with 3M 5200 using the seacock as a drill jig.
Do it this way and you'll never have an issue again.
Need step by step directions? Buy a copy of Nigel Caulders book - it's even got pictures of how every step should look.