[C320-list] Charleston Spar Sheaves

[SARA SCHROEDER]

I  had the same problem with the boom sheaves (boat is 23 yrs old) and the pin was also crooked. We determined that the force of the pull on the sheaves was causing the pin to "ride up." On the port side, the pin actually created a groove in the metal on the inside of the boom end cap such that the pin would never be able to stay down again, even if I put in new sheaves. So, I hired the local riggers to replace the boom end cap, the sheaves and the pin.  SOOOO much better now.  I figure this is "once time fix" for the duration of my ownership!

Sara
Wandering Star
2000/#707
Seattle

> On 12/22/2023 2:34 PM PST Troy Dunn via C320-list <c320-list at lists.catalina320.com> wrote:
> 
>  
> The sheaves in my boom are all original.   I decided I want to replace
> them.   Some are chipped on the edges and they all feel "brittle".  When I
> pulled them from the boom I noticed that the rear pin was crooked such that
> the sheaves weren’t even turning.  None of the sheaves spin more than a
> couple rotations with a good hard spin and the pin needs a good polishing.
>   Has anyone found a good source to replace these delrin sheaves that isn’t
> $19 per sheave which seems ridiculously high?   Also, we have a wire on the
> backside of the outhaul.   Delrin isn’t a great choice for a wire halyard
> or outhaul sheave.   Has anyone replaced rhe delrin sheaves with a proper
> sheave for wire?   There is an obvious groove in my outhaul sheave.
> 
> Regards
> 
> Troy Dunn
> Hull #514
> Wonky Dog