Tartan 27' owner
Join Date: Jan 2008
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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.
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen
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