Re: S.C. - Clutch Plate Pulley Assembly
Originally Posted by
Fla_Xfire_SRT
Am I mistaken here about the shims? Removing the shims brings the pulley gap closer correct? Sure it does...that's why were running with no shims presently. Anyway, I read one of your posts about the pulleys..."One pulley supplier says that the adjustment has to be made a few times before it is finally set. I would not use one of these pulleys as the springs will be prone to early failure. The set up should be like the OEM pulley and not in any other way at all. " ...and I wanted to know if you are saying that pulley bolt needs re-torquing after running it in which might change the gap. I haven't tried to re-torque my SC pulley yet and should it be done cold or hot?...Thanks in advance...peace
The OEM pulley returns the clutch plate to the stops when the magnetism is switched off, the plate having only moved .012/.016" away from the stops when the clutch was pulled against the magnet.
Somehow someone says that it is OK that the so called springs on their after market pulley do not return the plate to sit against the stops, this leaves the plate in a position that may or may not be parallel to the magnet, the initial setting is much greater than the .012/.016" OEM setting this is to allow the springs to find their own position, the final setting being done when the so called springs have been stretched due to their use. I contend that if this has to happen then they are not springs in the first place. Any after market pulley should act like the OEM ones when set up. I do not know if this issue was solved later by making the so called springs actually springs.
For springs to last a long time the amount of deflection should be kept to a minimum. You will notice on the OEM springs that the force to move the plate of the stops is considerable, without the stops being there the springs would move the plate very close to the pulley face.
Why your pulley shows such a large gap is hard to say, the shims are there to make up for tolerance build ups in the components. Torquing the bolt would not solve anything. Measuring the depth of the bearing from the plate face and measuring the end of the SC shaft to the magnet would give you the gap you see now. A depth micrometer would be needed to do it accurately though.
The clutch plate wears over time but I would not have thought so much as to give your gap. My spare pulley clutch plate with less than 2,000 miles on it is .198 (5,00 mm) the original black surface is still to be seen on most areas of the contact face. The depth of the inner bearing face to the plate face is 1.020 (25,90 mm).
Last edited by onehundred80; Jan 14, 2016 at 10:09 AM.