Awesome, thank you Roy! Sent from my iPhone
> On Mar 22, 2023, at 11:43 AM, Leeward Rail <leeward_r...@hotmail.com> wrote: > > > Hi Randy, > > Good news.. > I was just organizing my spring task lists and found the measurements in my > notes. > > My boat is a 1978 30 Mark 1. > > Masthead Sheaves are for both wire and rope: > > Material: Aluminum with bronze bushing > 7/16" I.D. (bolt/shaft hole not the bushing hole) > 9/16" Wide x 3.5" diameter > 5/16" wide outer/rope groove (approx) > ? Inner wire groove size unknown > > Hope that helps. > Roy > > Mar 16, 2023 8:51:12 a.m. Leeward Rail <leeward_r...@hotmail.com>: > > 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
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at: https://www.paypal.me/stumurray Thanks for your help. Stu
