C Type Gearbox problem
has anyone suffered with this problem or do you know what is causing it:
when turning the propeller by hand it sometimes does not turn the engine over with every prop turn. The rubber donut coupling between the gearbox and the engine can be seen not turning when this happens. Seems like there is a gearbox problem - have taken it off and opened it up but nothing obvious wrong there. Maybe the taper bearing on the propeller drive shaft in the gearbox is worn/loose and the big nut that holds the big crown wheel on the shaft also needs a re-torque. Or is there some other problem that anyone knows of?
Many thanks
:(