Randy,. Forgot to mention. The original C&C masthead sheaves are aluminum with bronze bushings. Basically bulletproof and superior to modern plastic ones.
They likely just need cleaning and lubrication. That said, some people have concerns that the dual groove design causing premature wear on rope. Best solution to that IMO is to take them to a machine shop and have them re cut for rope only. Cheaper than buying new ones, and you end up with a better quality result. Cheers, Roy Mar 15, 2023 2:46:00 p.m. Randy Stafford via CnC-List <cnc-list@cnc-list.com>: > Hello Listers, > > Does anyone happen to know the size (inner diameter, outer diameter, and > thickness) of the original mast sheaves on a 30 MK I? I have hull #79, 1972. > There are three at the masthead (two headsail, one mainsail), and three at > the base. Does anyone know whether the masthead and mast base sheaves are > the same size? > > The original sheaves were grooved for wire/rope halyards. I’m replacing my > original halyards with all-rope Novabraid Argus, and will replace the sheaves > to match. I’m preparing to order replacements from Garhauer and need to know > the size. https://www.garhauermarine.com/shop/?_categories=mast-sheaves. > > Right now I don’t have access to the masthead, but I can remove one of the > mast base sheaves to measure it. > > Thanks, > Randy Stafford > SV Grenadine > C&C 30 MK I #79 > Ken Caryl, CO
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