I did a search on 89 alt belt tensioner, but came up with nothing. I know its a dumb question but ive never replaced belts on a tensioner car before. So, how do you loosen the alt belt tensioner on an 89 MTX? I hear ATX's have "automatic" tensioners. I see on my tensioner, theres a little hex head bolt going straight down with a retainer clip or something. Then theres the stud with a nut on it right in the middle of the tensioner. Which one do I move? And which way? BTW I have to replace that belt soon cuz its not looking too pretty, but amazingly the waterpump/ps belt looks alot newer than the Alternator/AC belt. Any tips are appreciated!