Joe DB, See below where I described this in response to another thread. I
contacted Mars Keel about this and they were aware of the issue on boats of
this age. (they made the keels for
C&C I believe) I spoke to the yard that repaired the worst one described
below, and he mentioned that he had found a large void around the keelbolt
head. Fill with water, freeze, repeat...I have some photos of this.
"Check the lead keel for hairline cracks and bulges at the lower end of the
keelboats. It seems that water seeps into voids/gaps around the bolt,
settles around the cast-in head of the bolt, freezes and expands. I
noticed one in our yard (whitby ON) last winter with a section of lead
broken clear of the keel. I could have stuck a screwdriver in and levered
it off. I then toured the yard looking for C&Cs of a similar vintage, and
noticed this problem in 6 of 8. The other 2 had more recent shoal keels
installed. Mine is showing early onset. This is a 5-7k repair. *****. My
Single biggest caveat and not well understood by surveyors, probably a
recent thing."
Subject: Re: Stus-List 33ii Keel rebedding and ballast crack repair?
Message-ID:
<991d8196d9894467874d350bdd4fa...@nsc-dag3-06.ba.ad.ssa.gov>
Content-Type: text/plain; charset="utf-8"
Frost crack?
I have no idea how water could fracture a solid piece of lead. Something
else has to be going on.
Joe DB
Coquina
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