They look way to wide for the masthead sheaves on a C&C 30.
The important measurements are:
- Size of axle hole
- Overall diameter of the sheave
- overall width of the sheave
Extra measurements:
- Width of the rope groove (ie what size rope will it hold
- Width of wire groove
See:
https://www.zephyrwerks.com/sheave-sizing
Cheers,
Jeff Nelson
Muir Caileag
C&C 30 - 549
Armdale Y.C.
On 2023-03-16 11:58, Dennis C. via CnC-List wrote:
Randy,
They look like this?
https://drive.google.com/file/d/0B_sb5TfIENvsTzNCZWtUQ2JQeVE/view?usp=share_link&resourcekey=0-Em5B_AxQTt0SXnJYhnRneA
<https://drive.google.com/file/d/0B_sb5TfIENvsTzNCZWtUQ2JQeVE/view?usp=share_link&resourcekey=0-Em5B_AxQTt0SXnJYhnRneA>
I had these on my desk for years along with a mast base exit fitting.
I've looked everywhere and can't find now them to measure for you.
--
Dennis C.
Touche' 35-1 #83
Mandeville, LA
--
Dennis C.
Touche' 35-1 #83
Mandeville, LA
On Wed, Mar 15, 2023 at 2:45 PM Randy Stafford via CnC-List
<cnc-list@cnc-list.com> wrote:
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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