yesterday my car broke down and it wouldnt start i got it back to my house and i figured it was the starter so i took it out and went to get a new one when we tested it on the tester thing it worked fine so we put it back on anyways my car starts if i put the key in the ignition and turn it on and then go and jump the starter i was wonderin if anyone knew how to get the ignition of so i can get a new one. there are 2 screws with no heads on them so i dont know how to get the screws out. also ive got a cable clutch on my rex and the nut that u adjust it at keeps backing itself off how do i stop it from doing that??