David, The screws which Joel mentioned are, from my experience, a type of cap screw. You might want to remove them one at a time and lube them with tef-gel, or anti-seeze. If they get stuck they break. If they are over torqued they break. If they are not fully tightened or the springs are old or the line is too small of a diameter then line won't stay in.
As long a the above three conditions are met then the problem you are having is with the friction on the drum. It sounds like those three conditions are met since you only experienced this problem in heavy winds. As mentioned extra wraps should help add friction. Additionally a machine shop can re-knurl the drum. You can also add a sleeve to the jib sheet. If you have the crew to do so, try having them not use the self-tailer to winch in on the tacks. See how much pressure the tailer needs to apply before the winch slips. The tailer should only have to apply moderate tension. If they are really pulling you need another wrap (or 2). If you have 4 or 5 wraps and the winch still slips then you need more friction. Sleeving the sheet is probably a little cheaper and will make the line better on the hand. You can also do it yourself. If you still find that it takes 4 or more wraps I would start looking for a machine shop. I have one in mind if you are interested. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Oct 5, 2015 9:05 AM, "David Knecht via CnC-List" <cnc-list@cnc-list.com> wrote: > We raced yesterday in 20+ knot winds and I found that the Barient 28 self > tailing winches were both slipping in the self-tailer making it hard to > bring the genoa in all the way. I cannot find a line specification for the > Barient, and when I replaced the line a few years ago, I got 7/16 VPC > instead of the 1/2” that was original. Is this to be expected in high > winds? I found something from Barient that said that the self-tailer was > adjustable with spacers, but I can’t find that in the parts diagram I have, > so I don’t know if it is true and whether I need to change spacing. I had > the same problem with the Barient self-tailing winch we were using for the > mainsheet which also now has a slightly down sized VPC. Is VPC just > slippery and this is a characteristic of that line? Thanks- Dave > > Aries > 1990 C&C 34+ > New London, CT > > > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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