I have a 1991 nissan 240sx. It will act like its goin to crank up but just turn over but you can push/pull it off when i first put the motor in there it would crank up so we took the distributor out and the bearing was out of the distributor so i had a junk motor with a distributor so i put that one in there put it in time it ran good for a day then the next morning i went and tryed to crank it and it did the samething its doin now then i put a whole new distributor in it fired up ran great then the next mornin tryed to go out there and crank it and it did the samething all over again people say it might be the pick up inside the distributor?? any suggestions?