Just for your information, I always had my sheaves made at a machine shop out of 3/8 aluminum plate, by the hundreds. They were grooved for line, but worked well with wire. They were sized for 5/15 material. If you get in a jamb I have a few, but you might have to get out a file because alum sheet stock varies by several thousands . Thne 17 is the tight one, and the 15 has plenty of clearance normally. jerry ----- Original Message ----- From: "Ronnie Keeler" <ronkeeler@hotmail.com> To: "Montgomery boats mailing list" <montgomery_boats@mailman.xmission.com> Sent: Tuesday, May 12, 2009 1:43 PM Subject: Re: M_Boats: Halyard line My sheaves which were designed for wire rope have been working fine with the 5/16 vectra. I read that it is OK to use a wire rope sheave with line if it is wide enough but not wire on a rope sheave. I do have nylon sheaves the right size that I got from Duckworks when I bought the vectra rope. I kept them in my parts box and if I start to get any binding or apparent wear on the halyards, I will change them out. Duckworks has a limited viariety of hardware primarily geared to the home builder but what they do have has been consistantly lower price that Defender and especially West Marine. Besides, Chuck at duckworks is great to work with. Whitebeard M17 #14, Griselda
From: gordon@financialwriting.net To: montgomery_boats@mailman.xmission.com Date: Tue, 12 May 2009 15:20:39 -0500 Subject: Re: M_Boats: Halyard line
Hi, Tom: Although my '83 model apparently came with wire-to-rope halyards, the sheaves are just wide enough to accept the 5/16" line. So I didn't have to switch. After one season, the new halyards look great, with no fraying.
I think I recall Bob Eeg posting a while back, saying he had some extra rope halyard sheaves available. He might be worth a try. Otherwise, you might give Jeff at Rigging Only a call.
Gordon M-17 "Sapphire"
On May 12, 2009, at 2:55 PM, Tom Jenkins wrote:
Gordon,
My halyard sheaves are definitely designed for wire only; was it difficult to find replacement sheaves to accommodate rope?
Tom Jenkins 2004 M17 Scintilla
----- Original Message ----- From: "Gordon Gilbert" <gordon@financialwriting.net> To: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> Sent: Monday, May 11, 2009 5:51 PM Subject: Re: M_Boats: Halyard line
Hi, Andrei: I replaced my wire-to-rope halyards last year with 5/16 Stay-Set, and the all-rope halyards have worked out well. I ordered 40' of the line for each halyard from Rigging Only (Jeff there is very helpful), a length that is long enough for leading them aft to the cockpit eventually. Rigging Only spliced a high-quality Wichard headboard pin shackle on the main halyard and a beefy Wichard snap shackle on the jib halyard (make sure you get strong, high-quality shackles). It all works great.
Gordon
On May 10, 2009, at 3:34 PM, Andrei Caldararu wrote:
Hello all,
I am looking to replace my old wire-to-rope halyards with all-rope ones. The ones I would be buying would be from New England Ropes, Sta- Set, and I would need some advice on how thick a line I should go with. Would 1/4 be enough, or 5/16, or do I need thicker line? These lines have tensile strengths of 2000lbs (1/4) and 3000lbs (5/16).
Does anyone know what the newer boats come with? Also, has anyone measured their masts (I assume I need about twice the length of the mast for the length of the halyard).
Thanks,
Andrei.
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