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Subject: Re: Chainplates need replaced on 23S


Author:
David A Cooper (hopeful)
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Date Posted: 19:16:10 12/08/2009 Wed
In reply to: Stephen Shannon 's message, "Chainplates need replaced on 23S" on 20:32:53 15/06/2009 Mon

>I have a 23 foot sailing seamaster. The shrouds are
>pulling up the decking. The decking around the
>shrouds has slight cracks and is pulling up.
>
>Does anyone have any advice, experience in
>
>-cutting through the fibre glass and replacing the
>chainplates?
>
>-repairing the decking and replacing the shround?
Hi Steve

I believe the chainplates are secured by the u bolts(upside down) going thru the deck then thru large metal plates to spread the load, and lock nuts,these are, on my ,boat, behind the inner moulding with hatches to indicate where they are.They may be mild steel and over time the sea water/rain water has seeped in and caused massive corrosion and failure causing them to bend and heave up thru the deck moulding.
The first suggestion I can make is that you explore the ares under the chain plate locations from inside the hull.You may have to make dimensions with a tape measure from say the aft bulkhead to discover the correct position.The situation may require a professional boatbuilder to make the neccessary repairs, however provided access is OK then you can replace the backup plates with stainlees steel ones and renew the nuts and U bolts.The deck area may need to be repaired with some reinforced plastic, i.e Glass cloth and epoxy resin.I would reccomend you find someone who is proficient as any dampness could result in the resin not curing properly.

Good luck with this project.

David Cooper

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