None of my chain plates are original. They were all beefed up, probably because early Cal's had a reputation for the rigging
not being sturdy enough. They don't look like yours at all.
I'm surprised to hear that your deck is constructed differently than mine. All of the Cal deck repairs
I have heard about had to be done from the interior
, which is incredibly messy and difficult. The only way to get a secure bond is to slather the plywood with thickened epoxy (after wetting out the inside of the FRP deck first) and drive screws through the plywood into the outer fiberglass
Since the deck is crowned, the plywood has to have longitudinal grooves cut in it to help it bend, and since I didn't have any help I had to drive numerous screws all the way through the deck to get the plywood to crown (about 6 inches on center) then had to remove the screws and repair the holes afterward. It wasn't expensive, just messy and time consuming. Then I put a layer of fiberglass
(CSM) over the plywood, faired it with polyester and painted it with Interlux
. It came out great and is better than new as the factory worker didn't wet out the original fiberglass very well.
I didn't put gelcoat
on over the fiberglass as original as I detest gelcoat
after stripping every bit of it from the inside of the boat. I don't think gelcoat adds much to the structural integrity as others have suggested. The deck is like a granite slab now.
PM me if you have other questions.