Join Date: Jun 2000
Location: CT/ Long Island Sound
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Of course, you might want to buy line from Sailnet, since we're using their website for this discussion? Please note that changing the sheaves will involve going up the mast to find out the diameter and thickness of the existing sheaves, as well as whether they're "U" shaped and don't need replacing at all. If you do decide to go ahead, you have to purchase the replacement sheaves. These new sheaves have to match the old dimensions exactly, or the halyards may jump the sheave and jam. It is not fun when this happens. You can fit spacers or bushings to keep halyards from jumping, but this is not fun either, since it brings more complexity and possible problems into the equation. Then you climb the mast again to remove the old sheaves and slip in the new ones. Slip is the definitive word here. Better buy some extras, in case something goes splash. By this point, you may have spent enough to offset a couple of year's worth of wear on the halyards from any "V" shaped groove in the sheaves. We switched out our rope/wire spliced halyards about 10 years ago without checking to see if the sheaves were V or U shaped and have not had any issues with wear. I am heading down to the unstepped mast tomorrow. I will look to see if they're V or U -shaped and let you know.