Quote:
Originally Posted by jhv48
Went to the shop yesterday morning and examined the pieces.
Clutch is fine, throwout bearing is not.
The clutch fork (maybe due to the misaligned slave push rod) was off the fulcrum and applying a side load as well to the throwout bearing, possibly resulting in only partial release of the disc.
So, the pilot bushing may not have been the culprit after all. Might have been a series of events leading to a slightly dragging clutch disc. Every time we replaced the pilot bushing, we replaced the t/o bearing too just for safety sake.
Putting it back together today with a new slave bracket so the rod is pushing straight. New pilot bearing and a new t/o bearing.
Will test and report in a few days.
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So it now appears the culprit all along was the relationship of the slave cylinder pushrod.
All clutch mechanisms push or pull on the throwout fork parallel to the input shaft.
If the push or pull occurs at an angle, it no doubt tries to twist the fork and apply uneven load to the throwout bearing.
If the bearing carrier has a little more than acceptable clearance on the bearing snout, it will not be parallel or concentric with the pressure plate fingers.
Uneven release results in a dragging clutch and difficult shifting, especially from rest.