Topic: Fiberglass Cabinliner
If you remove the headliner, you'll see the bottom of the plywood decks. I've got lots of pictures if my boat all apart, I'll try to send them sometime in the next week. The cracks in the headliner at the mast beam are from the fact that the posts are not actually attached to the beam, and just push up on the liner and deck. Solution will be to fix (thru bolt maybe) the posts to the beam. If the headliner is all blistered, then there is no doubt that the plywood deck is all wet and rotten. I'll send you some pictures of my 74. Cheers
Stefan