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View Full Version : Masthead sheave space



Stephan
05-22-2007, 09:29 AM
Hey guys,

I have to replace my broken main halyard, and will get the new one later today. I'm worried that I won't be able to thread the splice (between the rope and the wire part) through at the top of the mast. Do you know how much space is there? Are there bolts one could open to widen the gap if necessary?
Will be on the crane this evening and I hope I won't have an unpleasant surprise...

Stephan

bill@ariel231
05-22-2007, 10:06 AM
"Are there bolts one could open to widen the gap if necessary?" not really. The bolt that holds the stays also acts as the axle for the main sheave. The mast extrusion is quite stiff.

I'm running an all rope halyard with 3/8th inch line. I haven't seen a wire halyard for 10 years... there are lots of semi exotic fibers out there that are easier to work with.

commanderpete
05-22-2007, 10:25 AM
Its a good sized slot up there, should be able to get the splice in no problem

Stephan
05-22-2007, 11:27 AM
Thanks Commander Pete. The guy at West Marine has done the splice to the wire portion already, and the wire part has the shackle attached already. I didn't know the wire was so old, but the guy who spliced it said it looks good. They are still selling mixed halyards there, so I didn't even think there was anything unusual about it.
I'm happy to hear that you think there will be enough space. I'll head to the harbor now, the weather is gorgeous.

Stephan
05-23-2007, 06:46 AM
Everything went well. As you said, there is plenty space up there and the splice went through it nicely. The main sheave was actually so hard to turn, I wonder if the halyard was just sliding over it. After lubricating it, raising the main is much easier than before.

Lucky Dawg
05-23-2007, 01:32 PM
Awesome picture!! I would have been chanting "I trust my crane operator. I trust my crane operator..."

Stephan
05-23-2007, 02:50 PM
My dear crane operator was sipping beers and complaining I wasn't fast enough. In hindsight I must say I was more than a little lucky...