clutch popping?

Discussion in 'Frame Mounted Engines' started by thuginfc, Jul 7, 2010.

  1. thuginfc

    thuginfc Member

    my clutch is making a weird noise/jerking everyonce in a while when i have it pulled waiting at a red light sometomes it will pop and stal the motor..

    i replaced the clutch pads put some grease on the gears lubed inside where the ball and shaft are what could it be?

  2. GearNut

    GearNut Active Member

    How tight of a fit is the clutch hub to the clutch ring gear?
    There should be no more play than 1/2mm or 1/16in. Any more than that and the clutch hub/ clutch assembly is shot.
    I ask because if it gets really bad, the teeth on pinion gear attached to the crankshaft and the teeth on the clutch ring gear will not mesh correctly and will ride up on each other. In other words, they will disengage from each other and instead of the teeth meshing tip to valley, they will grind tip to tip. The very beginnings of this are "popping" sounds as the teeth occasionally slip past each other. It will only get worse as the wear increases, especially under load.