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post #9 of Old 03-13-2012
GeorgeB
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Re: Chainplate reinforcement

Tafa, can you take a couple more pictures of your rigging? (From the topsides for example.) Am I’m looking at a lower shroud and that your cap shrouds are chainplated into a bulkhead, frame or hull? My guess is the crack you are seeing is from a molded-in headliner and that the problem is there is a gap between it and the deck proper and that tightening that one nut is the culprit and not a question of over tensioned wire. When you remove the topside “chainplate”, clean the bolt holes really good. Tape over the hole bottoms and pour in the epoxy to fill the gap and re-drill. You probably have wood core here and check to see if it is wet and rotted. That too will cause your problem. Mainesail has an excellent website that shows how to do these kinds of repairs. You will probably want to add a proper backing plate. You can fabricate one out of 1/8 inch stainless (polished) plate. However, this is expensive and requires cobalt drill bits and saw blades. Downscale, you can use 3/16 inch G-10 (Garolite). This is easier to work with but lacks the finished look of polished stainless. Are you missing lock washers on the those bolts or it the picture quality? You will want lock washers. If you use SS backing plates, all you will need are the locking washers and nuts (plus an acorn nut to finish it off). If using Garolite, then add a flat washer.
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