is that even possible bud? isn't there a slot in the rotor for the shaft so it can only go on one way? - what really gets me is that it DID run - albeit badly... sorta sounds like the distributor clamp is loose and the timing is turning out with each rotation of the engine...
Yes it is possible for the index or the rotor tip to tear off, usually from someone not locating the cap correctly, or reassembling it without that exasperating little cam retaing clip on the top of the driveshaft.
So make sure the dang rotor is turning with the reluctor.
