Leak by Grounding Wire
Dave,I have an '85 model Hunter 23. The grounding wire runs from the keel bolt up through the support post in the cabin thats directly under the mast and exits through the coach roof under the mast support plate. It attaches to the support plate by one of the four screws that hold the plate to the coach roof. The roof at that point is basically flat. If you're collecting lots of water via that small hole, I'm concerned that the plywood thats between the outer skin and the ceiling (about 1 1/2 inches thick) may be rotten and sagging - creating a dish in the roof to collect more water to run down the wire. You may get some indication of rot by tapping on the roof, but a better way is to find an old salt with a moisture meter who can tell if you,ve got a problem. The best way to seal around the plate is to take it up, clean everything and recaulk. Of course you have to drop the mast to do that which is another problem. IF perchance the plywood is rotten, please be very careful lowering the mast that it doesn't tear the base out of the roof. Thats an 80 lb mast and when it nears horizontal, the side loads on the roof can be several hundred lbs, depending on how its being lowered. I'm curious to know how you make out. (swalleyjc@aol.com)