82 Floor Repair (I need help)

The 3rd picture indicates that there will be significant rot in the secondary stringers in that area. The foam looks good on top but gravity pulls the water to the bottom. The cracked floor means the PO did not build a strong enough floor. That breach allows water to flow into the floor. Now you have work to do.

Your idea of using plywood as a floor is fine. You will add weight. If you are not a slalom skier - no big deal. Just be sure to seal both the top and bottom of the floor pieces with epoxy before bonding them to the stringers.

I would recommend removal of the foam. At least exploratory. Take out a big chunk down to the hull. If it splashes your face - its wet. From the dash to the stern the 80lb kit of foam will do the job.

Dont worry about the muffler. Clean it up and use several layers of epoxy and glass as a patch.

Today I got my 82 2001 out to be reminded of the soft spot in the floor that I knew was there when I put it away for the winter.

When I bought the boat the guy told me the floors and stringers were redone in 99. It is looking to me like when they did the floors (from the start of the engine cover) back they just laid fiberglass on top of the foam. It has now cracked and is bouncy on the passengers side from the font of the motor to the back of the motor.





And as a bounus one of the mufflers was cracked


The good news is that it appears to my rookie eyes that the primary stringers look fine. I have not dug very far but also the foam seems dry and in good shape.

What should I do next.

My idea is to tear all of the floor up that does not have wood under it and replace it with marine plywood.

Help me before I screw something up.

Thanks in advance

Jon