Steve, The PO who changed from rope/wire to rope replaced the sheaves at the mast head but not the exit blocks. The mast head sheaves are available from Catalina Direct for about $40 each if I read their pricing right. http://www.catalinadirect.com/index.cfm?fuseaction=category.display&category _id=44 If your mast is down, they are easy to replace.
If I remember correctly, all the masthead castings are the same. With wire halyards, there are some plastic spacers on each side of the sheave. I used the wire blocks at the butt until this year and they worked ok. I you didnÂ’ t change the sheaves, the rope would ride on top of the sheave rather than down in the grove. I do not remember how it looks up there. John -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] Behalf Of Steve Siefken Sent: Monday, August 25, 2008 10:10 AM To: [email protected] Subject: Re: catalina27-talk: Halyard Length John, You hit on my main concern which was whether I would have to replace the sheave. I was pretty sure I would have to replace it, but I was talking to a West Marine employee who said I would not. Didn't make much sense which is why I asked the question of this esteemed group! I was thinking rope because it is cheaper. (I just bought the boat and I have a lot of stuff I need to fix and or modify.) If I have to replace the sheave to do it, I suspect the wire - rope solution would be cheaper and easier. Thanks much! Steve ----- Original Message ---- From: The Emmerichs <[EMAIL PROTECTED]> To: [email protected] Sent: Sunday, August 24, 2008 6:07:55 PM Subject: RE: catalina27-talk: Halyard Length Steve, Phil sent you the link to rigging chart. If you want to check the number, use twice the mast height, deduct the distance from the cabin roof to the boom or wherever you fasten the shackle when the sail is down, add 3 feet or what ever you want for a tail past the winch and if you want them to add a eye splice for a shackle, add another foot. If you have wire sheaves, then they need to be replaced. A PO converted mine to rope from wire. The sheaves at the masthead were replaced, the exit blocks at the butt were not and I replaced them this season. I used Stayset X for the main halyard when I replaced it about five or six years ago. If you are racing seriously, this particular line has too much stretch. If the winds are going to be anything about 10, we have to put the halyard on the winch and really put a lot of tension on it to get the stretch out. If you are going to race, I would recommend as low stretch line as you can afford. John 5874 Fortitude -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] Behalf Of Steve Siefken Sent: Saturday, August 23, 2008 6:18 PM To: [email protected] Subject: catalina27-talk: Halyard Length I am thinking of replacing a wire and rope halyard with rope only. If I do this, will I have to replace the sheave as well? Also, how long will this need to be if I want to run the halyard back to the cockpit? Thanks, Steve
