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You move the AC compressor and the alternator to adjust tension. Has to be done from under car.
There is no fan belt on any year Fiero. Electric fan motor,
There is a tensioner bolt that is connected to the alternator. You have to screw in the bolt, which will pull the alternator out and tighten the belt.
Serpentine belt? You may have to remove to tighten alternator
To tighten the alternator best on a 240sx, loosen the bolt on the alternator on the drivers side. Pull on the alternator away from the engine to adjust the belt. When it has no more than a quarter inch of give, tighten the bolt to finish.
how do u tighten up an alternator belt on a 1987 BMW 325i?Answerhow do u tighten up an alternator belt on a 1987 BMW 325i?
There is one belt on a fiero. You take off the passenger side rear wheel. you should be able to see the slider that the alternator is mounted on. loosen the bolt at the top of the alternator and then loosen the bolt on the slider. This will release the tention on the belt. The trick is going to be getting the tention right when you put the new belt on. You might need another person to help you by using a bar of some kind to pry on the alternator while you tighten the bolts. don't wrench on it too hard though. there should be aboout a 1/4 inch of play if you push in the center of the belt between two pulleys.
depending on the style of belt, on the alternator belt there is an adjustment just below the slider holding the alternator, you just simply tighten it until belt becomes tight.
if the car doesn't have an automatic tensioner than if the belt is around the alternator pully you loosen the bolt holding the alternator on and move the alternator to tighten the belt.
You'll probably want a manual for this, but you may be able to locate a bracket on or near the alternator that moves the alternator itself or a pulley that the belt runs on. This is a tensioner and turning the bolt one way or the other will tighten or loosen the belt. DO NOT OVER-TIGHTEN THE BELT! This will damage the components the belt runs on.
What kind of car? On an older car you just loosen the alternator and pull it until the belt is tight and then tighten the bolts back. On newer cars, there is a tensioner that pulls the slack out of the belt.
Loosen alternator remove old belt. Reroute new belt, tighten alternator.