There's an idler wheel in the surpentine belt circuit along with the AC compressor, the main crank pully and the alternator. The purpose is to keep tension on the belt, and this idler is spring-loaded. If no serpentine belt diagram is available create one before beginning the steps below. In the center of the idler is a 15mm bolt head. Place a closed-end wrench on this bolt head with the free end pointed towards the front of the vehicle and pry the idler in an upwards motion. Hold the ider in the "up" position and slip the serpentine belt off of the alternator pully with the other hand. Release tension on the wrench slowly and allow the idler to lower to it's bottom stop.
You must first loosen the alternator, do not remove it. remove the alternator tension screws top and loosen the bottom screws DO NOT REMOVE push the alternator toward engine, for the a/c belt you must loosen the belt tension pulley and move it. replace in reverse order
loosen the serpretine belt tension and remove the two bolt that hold the alternator
You have to loosen the tension on the belt by loosen the nut normally found on the pulley located by the motorblock, manifold or even by the alternator pulley it's self.
loosen the tension on the belt with the tension pulley, remove the belt then disconnect your wires from the alternator then take the 3-4 bolts, holding the alternator on, off. then do the opposite to put the new one back on
Loosen the alternator tensioner bolt. You will be able to slide the alternator either way to adjust the tension on the belt.
To reach the alternator on a 2000 Honda Civic loosen the adjustment bracket. Pull the loose belt off then loosen the bolts for the alternator. Replace the alternator.
To replace the alternator belt on a Citroen Berlingo, you have to locate the tensioner. You can loosen it to replace it.
Ajustment bolt is located at the bottom of power steering pump.
disconnect the battery source first, disconnect the wiring on the alternator, then loosen the bolts on the mounts to loosen the belt. then loosen and remove the bolts. remove the alternator, and replace with new one.
Loosen bolt in tension pulley, then loosen tension bolt. Replace belt. Tighten tension bolt. Last, tighten bolt through pulley.
Disconnect the 1982 Regal alternator. Loosen the alternator bolts and slide to release belt tension. Put new belt on ( you may have to remove other belts to gain access) and pull the alternator sideways to put medium tension on the belt while tightening the bolts. Reconnect the battery.
My suburban has a automatic tensioner therefore I need to do is take the tension off with a long wrench and slide the belt from underneath it and replace it with the new one. The tensioner is right by the water pump. If not then you will need to loosen the alternator bolt and drop the alternator to loosen the tension. Trust me manuals can be your best friend!!