I first tried it in the car after I put it in, then I tried after I took it out, both with the same results... I also tried two different batteries. But I do know that when I bought the starter the man that sold it to me did not ask what size clutch, or any other "Q" like that... I have the 10" clutch, and the smaller flywheel, does any body know how many teeth that one has? Also, thank you for your help...