Transom hole help, 76 Sceptre 23 PLEASE !!!!!

[kerneltugboat]

I am not sure about the 1.5" hole, without pics,and that sounds like it might be your problem, but one thing you may want to check carefully is the scupper tubes. We thought my dads 72 I/O had a leaky bellows last year and it turned out to be the scupper tubes. The tubes rot in the center sides, and that allows water to flow down into the bilge at a pretty good rate. We replaced the tubes and the bilge was perfectly dry.

Good luck !!