Leaky keel bolt fix
Greg, I bought my 1973 C22 about 8 years ago and quickly noticed water coming in around the keel locking bolt. First I tried using water proof marine grease, but that only slowed it down. About half way into the second season I noticed rust stains around small cracks in the fiberglass near the bolt. So I probed around the cracks with a screwdriver and chipped out layers of delaminated fiberglass. I than used a 4" angle grinder/sander with course sanding discs and ground down to solid glass. The keel strap with the nut welded to it was in fair shape so I used my sander and a dremmel tool to remove all the rust. I than laid 2 layers of fiberglass cloth with 1" holes around the bolt hole and behind the strap/nut using west system epoxy and used a hydraulic bottle jack protected with release film to press the strap/nut into the wet epoxy and let it set up overnight. The next day I built up layers of fiber glass cloth again with 3/4" holes over the bolt hole and epoxy until it wwas 1/2" thick. I also Kept putting epoxy into the hole and into the inside of the nut to seal the glass cloth edges. After letting this setup for a couple of hours I ran a tap through the hole to thread the epoxy and chase the nut threads, Than replaced the keel locking bolt using marine grease. The whole job took about 6 hours total, and I have not had one drop of come through in the last 6 years.Barry P. BroylesNorth East, MdLTBROYT6D@cs.com