[C320-list] Source of Leak

[Pat Moriarty]

Ok my two cents worth. I had the grab rail bolt leak and a small 
stream is very hard to see on the white overhead but that is where I 
finally tracked it to. Rebead and it is gone now.

Pat #130

At 12:47 PM 1/16/2008, you wrote:
>Randy, if you suspect the leak is from the shroud (chain plate) or 
>if you have not rebedded the chain plates in 2-3 years, then it's 
>time to consider doing it.  There have been numerous discussions on 
>this list about this so I won't go on.  Do some searching on the 
>archives for all that great advice.
>
>I will, however, tell you that on the older hulls, mine included, 
>the deck where the chain plates pass through is not solid 
>fiberglass, it is cored deck (later models, I'm told, used solid 
>resin at these points.)  That means that if your chain plate(s) 
>leak, the balsa core in the deck will be wet as well.  When I did my 
>rebedding, I dug-out the wet core with a bent nail in a drill motor 
>and let it dry out for a couple of days (weather dependent.)  Then, 
>I used a filled epoxy to seal the space between the liner and deck 
>to prevent future wetting of the core.
>
>There is also a product called "GetRot," I think by BoatLife 
>Co.  I've not used this (didn't think of it at the time;) but, it is 
>supposed to absorb the moisture in the core.
>
>I'm guessing that if chain plates haven't been rebedded in over 5 
>years, one or more are probably leaking.  Look for stains around the 
>backing plate against the liner inside, and for dark stuff around 
>the nuts.  You don't have to see dripping water inside for there to 
>be a problem.
>
>Warren & Pattie Updike
>C320, #62, 1994, "Warr De Mar"
>Frog Mortar Creek, Middle River
>Chesapeake Bay

Pat Moriarty
PSI Urethanes Inc
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