This was hard to do on my 86 2.5L 4 cylinder because in order to put the new alternator belt on... you have to get the other belt off... first what you have to do is loosen up the 2 pivot bolts on the AC compressor from underneath the car.. mine were pretty stubborn but i eventually got em to budge... once you can move the AC, remove the crank/water pump/AC belt. then loosen up the alternator pivot bolt located on the underside of the alternator...(this can be done from either top or bottom) once you can move the alternator.. slip the belt onto the alternator pulley and around the water pump and crank. then tighten the alternator pivot bolts while putting as much possible tension onto the belt and re-tighten alternator into place. then put or replace crank/water pump/AC belt and re-tighten the AC while putting as much possible tension on the belt by pushing the AC forward with a pry bar or screwdriver. good luck
There is no fan belt on any year Fiero. Electric fan motor,
Loosen the tensioner pulley. The alternator belt will become loose. Take off the belt. Remove the wiring harness from the alternator. Remove the retaining bolts from the alternator. Remove the alternator. Reverse the process to install the new alternator.
If you have to ask this question you should not be doing it.
right under the alternator, just follow the belt down.
150 ci
unloosen the 3 bolts on the alternator and push down on it and the belt will come loose, take the belt off and put new belt over the pulleys and to tighten pull up on the alternator and tighten the bottom bolt first and then check the belt for tightness, when you press on the belt there should be about 1/2 inch play, when you get it set then tighten all the bolts on the alternator and your done.
The listed rating of the 1984 4-cylinder Fiero is : 94hp (if I recall correctly)
It would be in a shop manual from DISCOUNTAUTOREPAIRMANUALS.COM or I would look for a like car on a used car lot and see how it is run.
The Fiero Store: http://www.fierostore.com/Product/Browse.aspx?d=281&p=1
not a timing issue since the iron duke 2.5 engine has no timing belt
On a scale of 1 to 10 its about a 5 for actual dificulty. For pain and tight space to work in they are about a 11 due to sharp edges.
the belt is most likely broke.