I had an epiphany regarding that clunk while sitting at anchor all day Friday, wishing the weather would stop sucking.Gene, flip 'em!....it's only a 2 beer job LOL.....beware of those weldments tho!
With the keel down, run a length of rope across the bottom of the hull. Throw it overboard at the stern and pull it forward along each rail until it stops at the keel cable. Tie each end to the lifelines, and raise the keel. The rope is now pinned between the hull and the keel. Takes under two minutes.
We didn't spend the night like that, but we each took turns rocking the boat as hard as possible while the other knelt in the cabin with an ear to the floor. Conservatively, I would say that the clunk is at least 95% eliminated.
@greg_m , I believe the root of the problem (my problem, anyway) is slop between the keel pin and its bushing. There is zero play between the pin and the hangers, and I have the "standard" shims at the top end of the keel, as well as Delrin spacers between the keel and the hangers. There is zero clunk with the keel down, only when up.
This is the slop to which I am referring. It seems to allow the aft end of the keel to fishtail side to side when raised:
https://youtu.be/C1gy907irxs
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