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11.0 - has anyone removed all chainplates?

Aug 3, 2019
20
S2 11.0a Not known yet Kalamazoo
Next spring I plan to pull all chainplates, remove any core rot (if there) and fill with thickened epoxy/recut slots, re-bed plates and covers. Has anyone pulled their chainplates on an 11.0 (a)? I am curious about access in some cases and how the hull liner is managed. I suppose some of this applies to any S2 with that "burlapy" hull liner.

Thanks -

Matt
 
Jun 10, 2004
3,264
S2 9.2A Winthrop, MA
There is no "hull liner" in the S2's, to my knowledge. Certainly there is none in the 9.2 and the 11.0 is quite similar. I can see all the chainplates in my 9.2A. Start opening doors and looking around. But I suggest you consider replacing the chainplates, or at least getting them magnafluxes or similar to look for cracks. Chainplates Express - Home and others sell replacements. Just pull the liner off and when you want to put it back just spray the surface of the hull and burlap with 3M contact adhesive and reapply.
 
Aug 3, 2019
20
S2 11.0a Not known yet Kalamazoo
Thanks, Bob.

The burlap is the hull liner I was talking about. I have looked at each plate area, but have not dismantled cabinets, etc yet to look at each of the six. A few look easy to get to, a few look challenging (forward lowers, for instance.)
 
Oct 22, 2014
10,380
CAL 35 Cruiser Portland OR, moored EVERETT WA
Pulling chainplates off is a sound maintenance project. Most owners will never have to do it. But when you are working with a 40 year old boat and you are considering sailing in open water or big water it is a reasonable project. If you suspect water issues like wet deck area, it is possible you will discover crevice corrosion.
It might look like much, but you can discover where water has sat on stainless that the lack of oxygen can breed corrosion inside the metal piece.
I found a little bit on my 40 year old chainplates. I was able to grind down and polish out the damage without affecting the strength of the material. Each project is different.

Good luck with the task and let me know how it goes.
 
Jan 25, 2011
2,019
S2 11.0A Anacortes, WA
One thing you might try if you're concerned about core rot on the gusset. Slack the stay and remove from the plate. Go inside and tape the gusset the plate bolted through and listen for any thuds...sorta like tapping the hull. You might have to pull the plate. Also peel back the cloth and drill a SMALL hole near the top of the gusset and see what comes out with the drill. Also, if there are no water stains in the carpet around the deck penetration, chances are good that things are ok. I’ve never done what I described but it seems reasonable. Chainplate leaks are notorious for your boat. I feel the carpet near the plate every trip to the boat. I used to have to rebed at least every two yrs using polysulfide. Three yrs ago, I used butyl tape from Mainsail and have had no leaks since.
 
Jun 10, 2004
3,264
S2 9.2A Winthrop, MA
The gussett being the wood that the chainplate is bolted to I assume? Also worth checking the bolt holes through the gussetts to make sure they aren't elongated.
 
Jun 10, 2004
3,264
S2 9.2A Winthrop, MA
BTW if anyone local to me wants some butyl tape I think I have a lifetime supply lol.