04-03-2006, 06:34 PM
ViPER1313 Wrote:I thought the key had nothing to do with the socket / crank pulley other than alignment at assembly time - that the pressure from the crank bolt held the whole shbang together through static friction between the pieces
Yes, the woodruff key provides alignment for the sprocket/crank but without it the sprocket would never stay in alignment with the crank, and if the keyway is loose the key will eventually wear the keyway even further causing obvious problems.