Originally Posted by lojik
No, not dumb, but I guess thinking that shaft that size & that hard could get bent, when in almost normal use it's good enough to propel thousands of pounds while peeling rubber off the tires, is unimaginative.
The clutch disk, an original suspect, has a hub made of stamped sheet metal, rivets & springs and as mickeymouse as it looks compared to a big billet/forged connecting rod and 4 to 1 odds, it does its job pretty well. Hanging a weight on it and twisting the clutch hub will give you disk runout & clutch drag. It may also get bent enough to promote rapid failure and have symptoms like you described.
The input/first motion shaft has one bearing in the transmission case & one in the crank. The pilot bearing was not designed for that kind of load, but then again it isn't spinning. The trans case bearing is shimmed so it has a nice tight fit in that soft, flexible, easily expandable with heat, aluminum case. If the bearing's loose, its outer race can spin & destroy the transmission or at least the case.
Bookmarks