Cal 20 Keel Bolt Issue - SailNet Community
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post #1 of 4 Old 08-07-2008 Thread Starter
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Cal 20 Keel Bolt Issue

Hi everyone,

I recently purchased a fairly beat up cal 20, and I noticed recently that it has a crack in bilge next to the aft most keel bolt on the port side (see the attached picture).

Does anyone know what is causing this? Has the bolt been tightened too much? What is the best fix for this?

Thanks in advance,

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post #2 of 4 Old 09-10-2008
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that needs some attention, other bolt area same?
maybe do a fiberglas repair and LARGER washers.
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post #3 of 4 Old 09-12-2008
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I have a Cal 20 in my collection of boats

The bolt passes through the hull and the interior liner.
I would guess there is a void between the hull and the liner.

Remove the bolt, grind away the affected area of the liner being careful not to damage the hull beneath the liner. Fibreglass to fill the void.

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post #4 of 4 Old 11-12-2008
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When chasing down a leak on my cal (turned out to be a pintle mounting bolt had backed out below the waterline)
I determined there is a void between hull and liner. That crack does look like overtightening with undersized washers, but theres another older crack further outside. Does that crack run the length of the keel, or is it local to just that bolt? The nuts look relatively new which suggests to me that they were replaced, as with our Cal's there was a manufacturing issue whereby steel nuts were used instead of stainless nuts which could rust causing the risk of the keel dropping off the boat - Potential for a very dangerous situation. Do you have the receipts of the work? You could ask the yard who did the work to inspect and advise. Post up what you find and what solution you came to. There is a large contingent of Cals still being operated and we all learn from each other's successes/failures.

Signature picture courtesy of Cal20 Class Assn.
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