no fire

unhooked the alternator and still no fire. i can pull the dizzy and turn by hand it fires great and put the dizzy back in and turn the body no fire. crank it over no fire pull it out spin it i have fire. could it be the dizzy itself is bad. i replaced the pick up in it and it didnt change anything. thanks.

It's strange that it works when you have it out and quits when you put it back in. As mentioned I'm wondering if the pick-up is shorted to the case? Or if there is a wire in the harness to the ECM from the dist that has an intermittent open in it and connects when you have the dist. raised.

It will be very interesting to see if the rebuilt dist. will cure the problem.