centerboard trunk cap repair

I have removed the centerboard trunk cap from my "new" FS 527 for sanding and varnishing. To my surprise I found that the 300-degree swivel cleat that controls the main sheet was not only attached to the mahogany trunk cap but screwed through the cap right into the centerboard trunk with 3" long stainless steel metal screws. I can't imagine that this is the proper way as it violates the gasket/"foam" membrane between trunk and cap. What is the recommended way of attaching the swivel cleat? I believe I found a clue when I noticed 4 abandoned closely spaced epoxied holes with washers on the underside further aft from the current arrangement, although in no way does the distance between the holes match the existing base for the 300-dgeree swivel cleat. I have pictures of the centerboard trunk before and after the cap was removed and of the underside of the cap at To solve this puzzle probably requires the input of anyone familiar with the 1960s FS rigging schemes. Any help would be appreciated!


I'll be interested to hear what folks reply, my trunk cover is d

I'll be interested to hear what folks reply, my trunk cover is deteriorated, and I need to do the same, not sure if I have the same issue or not....