I'm guessing that the questions being asked regarding the rotor are heading towards seeing if it's de-bonded or simply disintergrated, normally due to free reving, but if it rotates freely, could well be sensor or harness related. They're a bit un-nerving to take apart as the it's not clear what wil come away from the end bell and what will not. But if there is no visible sensor wire damage then you will need to take it apart to check continuity on each wire. From memory you have to remove the black back plate and the sensor ring, then de-solder the field windings from the pcb. You can then get to the sensorand it's pcb...
|