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post #2 of Old 09-13-2012
CalebD
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Re: C&C Halyard Sheaves

I can't help you with the size of the fittings on your mast (C&C 34).
I can say that I've seen wire rope wear sheaves down pretty badly in our out haul which is internal to our boom. For this project I replaced the sheave (on the boom) with a rope designed Delrin sheave from McMaster Carr: McMaster-Carr
and I replaced the wire rope with a fairly high tech, low stretch line.
Might be time to convert to an all line halyard and replace the sheave.
Check out the picture.
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File Type: jpg Old-new-sheave.jpg (83.1 KB, 16 views)

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