I have an old (1977) 27' e scow that is damaged. (tree fell on it!) I have been stripping off the hardware and everything usable. Rudder system was easy although because its the original system I don't know that anyone will want it. I am trying to remove the bilge boards. Fins? Not sure exactly what to call them. I can't figure out how. There are three 7/16 square plug looking things built into the glass that contains the fins. But they are soft and won't turn. When I try to look down in the crack between the fins and the fiberglass it only looks like there is one stud running through.
Any ideas besides just breaking out the grinder and cutting everything out of the way?
I greatly appreciate any help!