I just hope I don't need a rebuilt compressor.Thanks for your help, Sam
Sam they don't have a fiber gear you probably sheared the key on the compressor drive would be my guess if it is making no air period they will always produce some air if turning
The bakelite is intact except where it contacts the steel hub's splines. It seems to be worn smooth as if the internal splines of the bakelite sheared off from the center hub.
Yours must be a 71 series Craig most of those had the fiber gear drive the 92's have a steel drive gear with the coated spline coupling you guys from Mn must be tough on compressor drives John Z lost one in Texas a few years back
I think we are talking about 2 different things here Craig I call the the drive gear the one that bolts to camshaft 4 bolts sorta of square the coupling goes into never saw a fiber drive on 92 series but anything is possible on these buses The old Detroit's in a GM that drive was fiber so if it broke and fell on the gears no harm was done power steering pumps (Vickers) still use fiber flex coupling you find those in oil pans all the time with ground fibers nothing to be alarmed about it's by design