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Clooney
12-04-2002 05:36:48
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Re: D CLUCH SET UP in reply to Steve in Canada, 12-03-2002 20:41:55
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Steve, you have wear on something [probably a little on everything]. Look closely for oval wear in the pivot pin holes & pulley boss holes for the pivot pins. Look for wear in the operating sleeve toggle holes & wear in the toggle pockets of the pivots. Look for wear on the operating sleeve drive pin & pin hole in the operating sleeve.
~What is happening with your clutch is the toggles aren't going over center far enough to stay there & as you add tension to the adjusting bolts you are forcing the toggles to move back towards the disengaged position.
~When adjusting those 3 nuts try not to twist the adjusting bolts as they probably have wear where they sit in the pivot fingers & that changes the contact position. ~Those parts are expensive & in some cases hard to tell what is actually worn, so finding the problem is difficult. That clutch operates by those toggles [little bone shaped links] going over center when the operating sleeve is moved towards the pulley. If there is wear in [usually elongated pockets] the pockets that those toggles ride in they just stand up but don't actually go over center,,,If the pivots have worn pin holes or the pulley bosses have worn holes [usually oblong holes] the pivots move & the pivot pockets are not offset form the operating sleeve holes enough so the toggles won't go over center far enough to stay engaged,,, If the operating sleeve drive pin hole is worn oblong, or the pin is worn, the sleeve is allowed to turn sideways so the toggles don't go directly over center but go sideways as well & that lowers their lift enough so they won't go over center far enough to stay there.
~You have a few options: start with the operating sleeve hole & make sure that is reasonably tight on the drive pin [if worn, don't just drill the hole out & install a bigger pin as the wear is usually in one direction, so either use an offset pin with a larger end or re-center the hole while drilling it out so the sleeve ends up back in the original orientation..{in a lot of cases that will be all that's required to get your clutch working},,,,then move on to the pivot holes, pivot pins & pulley bosses, again don't just drill out & add larger pins, try to get the hole centers back where they belong so the geometry is returned to original,,,,If that doesn't get your clutch back & operational you will either need new parts or you can try to grind about .020" from the pulley side of the operating sleeve to allow it to move out farther therefore allowing the toggles to go over center farther. If this is confusing just post back with questions.....
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