1970 20 foot I/O advice

[jw]

Fire,
I have a 1975 sc cc i/o, I too thought the transom was solid, You can check where the hoses rout the water from the upper part of the bilgr, under the rear seats to port stern, if the foan is wet so is the transom. Seacraft did not tab the transom to the hull inside the stringers, so Mr. Moisture gets in the transom. You can also drill some 1/4 inch holes on the inside , if the sawdust id wet so is the transom.
Someone in this forum stated that if the boat was built in the 70's the transom needs to be replaced.
Just my three cents worth, with inflation.
JW