Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
I think it's called an ugly sheave... If you haven't done it yet, you should have Catalina Direct send you their C-25 Handbook, which is much more complete and informative than their site. It used to be $10... might be more now, but well worth it, even if it is primarily a catalog. They send out free annual updates.
Meanwhile, call them--they'll tell you if they have something like a "mast exit block". (I gave my handbook to the buyers of Passage.) Another option would be to remove the four screws, take apart the little block, and replace just the plastic sheave (the broken part).
PS: A turnbuckle is the adjuster at the bottom of each stay.
I would remove it and look for the manufacturers name. Then do a search on that. There are plenty of plastic sheves to be found around the net. I would expect it will cost you about $5.00 to fix it. If you are near a marine fleamarket, I would head there with the sheve in hand. If the sheve is 'riveted' in place, then you could replace the rivet with suitable pin peened over.
We replaced ours (that looked just like the picture) with the ones Steve pointed out. We do have 5/16" halyards but it works fine. The Harken exit blocks look nicer (and rated for 5/16") but Harken service gave the cutout dimensions as follows and they are all too wide for the C25. We did not want to widen the hole.
088 3/4 x 1 3/4 287 3/4 x 1 3/4 131 15/16 x 2 3/16
Thanks y'all. I just ordered two of 'em from Catalina Direct. $24 each. The new ones have sheaves made of aluminum instead of plastic which should hold up better.
I had a problem with a previous reply so this may be a duplicate post, but try Garhauer Marine http://garhauermarine.com/ I replaced some turning block sheaves for just a few bucks.
Thanks for the picture, I was looking at it and noticed what I think is your boom vang with the block near your deck. If it is your boom vang try turning it so that the release is attached to the boom up higher, It is MUCH easier to release than when it is close to the deck .
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Alan Clark</i> <br />Thanks for the picture, I was looking at it and noticed what I think is your boom vang with the block near your deck. If it is your boom vang try turning it so that the release is attached to the boom up higher, It is MUCH easier to release than when it is close to the deck .<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
Good tip!
I did that myself last year...It is much easier to adjust when the fiddle/cam is on the boom.
I guess I'll get my answer when I take the mast down in the fall, but I want to ask, are the masthead sheaves made of the same material as the exit block shown above?? I'm in the process of locating a replacement for my exit blocks, my deck organizer sheaves all had to be replaced and I notice that all the sheaves on my traveler/split backstay are disintegrating. So the only sheaves to worry about are the ones up the mast that I can't see. Were they made with some other more UV resistant material??
Daniel, the UV has eaten all of your sheaves. Yes your mast heads will need to be replaced. As for the traveler, if it is the old style rod traveler then Harken has ball bearing sheaves, if it is the new X track traveler then you need a new car.
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.