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 Post subject: Mast Sheave Replacement
PostPosted: Fri Sep 07, 2012 8:22 pm 
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Site Rank - Deck Hand

Joined: Mon Sep 07, 2009 7:12 pm
Posts: 22
I have an original style mast on my 16. The plastic roller in the sheave has reached the end of its life. The Sheave for the old style is no longer available from Hobie.

Can someone tell me if the new style sheave will fit on the old mast ?


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PostPosted: Fri Sep 07, 2012 8:26 pm 
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Hobie Approved Guru

Joined: Mon Jul 14, 2003 7:11 pm
Posts: 4586
Location: Detroit, MI
You can install a Comptip mast head on an old mast, but you'll need a new halyard because the distance between the shackle and halyard slug is different.

There was a forum thread about some one who made replacement sheaves for older style mast heads - use the search function.


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PostPosted: Sat Sep 08, 2012 7:05 am 
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Site Rank - Old Salt

Joined: Mon Sep 19, 2005 10:18 am
Posts: 752
Location: Virginia Beach VA
Last year I had contacted the guy who owns Zephyrwerks Sheave factory who said he would make me one if I sent him the old one. I didn't have one to send without taking my boat out of service. Another guy at the forum here made his own out of a plastic cutting board or something. Not sure he is prepared to supply the fleet though. Too bad there isn't a fabrication drawing around somewhere.


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PostPosted: Sun Sep 09, 2012 3:42 am 
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Site Rank - Old Salt

Joined: Wed Aug 18, 2010 8:15 am
Posts: 500
Location: Saint John, NB Canada sailing on Washademoak Lake
sunvista wrote:
Too bad there isn't a fabrication drawing around somewhere.

Could even get by without a drawing with these measurements:
- diameter of the sheave
- diameter of the hole
- thickness
- depth of the groove

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1978 Hobie 16 Keoke, sail# 36 84
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