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Re: Purchase of SanJuan 23 with deck leaks




Tom
Plywood was used to reinforce the decks where there would be items mounted
to the deck. You will find it under the aft part of the deck. The cabin top
is mostly balsa core except under the mast step.
Gene Adams
----- Original Message -----
From: "Tom Parkinson" <prknsn@xxxxxxxxx>
To: <sanjuan23@xxxxxxxxxxxxxxxxxxxxx>
Sent: Sunday, November 10, 2002 12:18 PM
Subject: Purchase of SanJuan 23 with deck leaks


> Hi everyone,
>
> I have purchased my first sailboat, a 1977 San Juan 23, sail number 44. It
> came with the original owners manual from the Clark Boat Company and deck
> leaks. I will sail it on Lake Michigan next season and so I have the "time
> of hard water" to get it ready.
>
> I pulled the port chainplate as an obvious leak and went to decore out the
> deck in preparation for filling with epoxy (I have worked on an old
> balsa-cored deck before - a '67 Bristol 24 belonging to a local BSA
Venture
> Crew - and know the drill - spin bent nail through the hole, saturate the
> core, fill with stiff epoxy compound, redrill) but the deck core is
clearly
> plywood in this area. I pulled the stanchions and they also have plywood
> core round the mounting holes.
>
> I have read that the deck is balsa core and wonder if this plywood is just
> local strengthening for mounting hardware (being more crush-resistant than
> end-grain balsa). How can I decore the plywood round deck mounting holes?
> How well will the plywood dry out?
>
> The chainplates go through slots in the deck - does anyone have a metal
> plate that screws down onto the deck round the chainplate slot and
supports
> the sealing goop?
>
> Where is the darned water coming in? - it appears behind the lip of the
> liner at the stern end of the cabin, right near where the scupper drain
hole
> bridges between the deck and the hull pieces - a likely weakness
>
> I love the "San Juan 23 Tech Tips" page and thanks to you all who make the
> "San Juan 23 Internet Fleet" page so inviting - without you I would not
have
> bought this gem.
>
> Tom Parkinson
> (847) 223-8076
> prknsn@xxxxxxxxx
>
>
>
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