Ok, thanks all - I’m convinced. Will replace the main halyard sheave anyway. Will splurge on something super low friction, rather than replacing all 5. Chuck S’s earlier email and its replies got me thinking about cumulative friction and seemingly free-running blocks binding under load. Mine don’t do that, I feel I can raise the main pretty easily singlehanded but maybe I’m just used to it and it can be made much easier. (Crew struggle at times). If the sail can drop into the lazy jacks more easily that would be a help. I have a couple of big-boy racing air blocks in my parts bin for the turning blocks at the mast base. Next step a big Rolex decal for the topsides! (Lol)
Bruno - you’re right, the blocks in the boom are an issue for sure. Am interested in your learnings there. Dave Windstar 33-2 (no foils yet) Sent from my iPhone > On Jan 30, 2021, at 7:46 PM, Bill Coleman via CnC-List > <cnc-list@cnc-list.com> wrote: > > > I think the wire groove is not helping any, but in looking at your pictures, > it looked pretty rough. I think a nice smooth sheave would go a long ways. > > Bill > >> On Sat, Jan 30, 2021, 7:11 PM Dave S via CnC-List <cnc-list@cnc-list.com> >> wrote: >> Do you believe that very shallow wire groove is wearing my halyard? I find >> it hard to believe but what do I know... the sheaves are otherwise in good >> shape since I rebushed them. >> >> >> >> >> >> Sent from my iPhone >> >>>> On Jan 30, 2021, at 6:28 PM, Bruno Lachance <bruno_lacha...@hotmail.com> >>>> wrote: >>>> >>> >>> Dave, >>> >>> This place has been recomended many times on this list. I ordered new >>> sheaves and pins from them ( mast and boom). Mot cheap but Very please with >>> the quality. >>> >>> Like you, i also experiment wear with similar « hybrid wire rope sheaves » >>> >>> https://www.zephyrwerks.com/ >>> >>> Bruno Lachance >>> Bécassine 33-2 >>> New-Richmond, Qc >>> >>> >>> >>> Téléchargez Outlook pour iOS >>> De : Dave S via CnC-List <cnc-list@cnc-list.com> >>> Envoyé : Saturday, January 30, 2021 4:54:05 PM >>> À : C&c Stus List <cnc-list@cnc-list.com> >>> Cc : Dave S <syerd...@gmail.com> >>> Objet : Stus-List masthead sheave thoughts? >>> >>> My all-rope main halyard is wearing somewhat after 4 seasons or so, and I >>> should probably replace it.. >>> >>> It is often stated that when transitioning from wire/rope to all rope >>> halyards, that sheaves must be replaced with an appropriate type, >>> presumably without any wire groove. >>> >>> The main halyard is the widest of all of the 5 lines that pass over these >>> sheaves, and is as large an OD as the sheave can accommodate. It is also >>> the most often used, and when at the dock is attached to the end of the >>> boom, so it is subject to chafe than the others, even in repose. >>> >>> Is the wear I'm seeing a result of this shallow groove in the sheave, the >>> diameter of the halyard, or is it simply normal wear under the >>> circumstances? >>> >>> If I should replace the sheave, can anyone suggest a source and type? >>> >>> pics here: >>> >>> >>> >>> https://cncwindstar.blogspot.com/2021/01/new-sheaves.html >>> >>> Thanks! >>> >>> Dave 33-2 Windstar. >>> >> Thanks to all of the subscribers that contributed to the list to help with >> the costs involved. If you want to show your support to the list - use >> PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - >> Stu > Thanks to all of the subscribers that contributed to the list to help with > the costs involved. If you want to show your support to the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
