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Re: Replaced alternator on '98 Cavalier. Can get belt
Turn bolt until it tightenc back up then keep pying the same direction (believe you are talikng about the tensioner)the tensioner should spring (move) back enough to slip belt over, lil tricky but you'll get it
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Remove the splash guard on the right side of the vehicle.
Loosen the alternator belt idler pulley.
Slip the drive belt off the alternator pulley.
Remove the four air conditioning compressor mounting bolts.
Remove the radiator fan and fan shroud.
Move the air conditioning compressor forward.
Disconnect the alternator harness connector.
Remove the alternator mounting bolts, and lower the alternator from the vehicle.
Hold the alternator in place and install the mounting bolts.
Plug in the alternator harness connector.
Move the air conditioning compressor back into location.
Install the radiator cooling fan and shroud.
Install the air conditioning compressor mounting bolts.
Place the drive belt on the alternator pulley.
Tighten the drive belt to the proper tension with the idler pulley.
Install the splash guard.
Connect the negative battery terminal.
Proper belt tension is important. A belt that is too tight may cause alternator bearing failure; one that is too loose will cause a gradual battery discharge and/or belt slippage, resulting in belt breakage from overheating.
Disconnect the battery cable from your battery's negative terminal. Loosen the serpentine belt on your Mustang's engine by finding the "tensioner" pulley and pulling it upwards to release the tension on the belt. Slip the belt off your alternator, taking care not to also slip it off the any other pulley wheels. Use a wrench to remove the nut that secures two wires in place on the back of the alternator. Loosen the two alternator retaining bolts and remove the alternator once they are out.
There should be a TENSION PULLEY/ARM that accepts a large (3/4"?) wrench or cresent wrench. You rotate the pulley in the direction to loosen (its' tension) and get the belt back in place. Sometime if the belt has ridden off the pulleys it will need to be replaced. Turn it so the "teeth" are on the outside and see if there are cracks in the rubber. Also look for wear marks on the pulleys or "rubber" that has come off the belt.
FOR THE 3.0L ENGINE IF YOU REPLACE AC BELT LOOSEN TOP IDLER PULLEY CENTER BOLT. IF YOU REPLACING ALTERNATOR AND WATER PUMP BELT LOOSEN ALTERNATOR ADJUSTMENT BOLT AND PIVOT BOLT.IF REPLACING POWER STEERING PUMP BELT LOOSEN POWER STEERING PUMP ADJUSTMENT BOLT AND MOUNTING BOLTS.****** FOR THE 2.4L ENGINE TO REMOVE POWER STEERING BELT LOOSEN TOP IDLER PULLEY.FOR ALTERNATOR AND WATER PUMP BELT LOOSEN ALTERNATOR ADJUSTER BOLT, PIVOT AND MOUNTING BOLTS.FOR AC COMPRESSOR LOOSEN LOWER IDLER PULLEY.
( BEFORE ADJUSTING THE ALTERNATOR BELT DISCONNECT THE NEGATIVE BATTERY CABLE OR YOU MIGHT BLOW AN EXPENSIVE HIDDEN FUSE)to change the alternator belt, you have to loosen the lower mount bolt on the alternator, loosen block shaped bolt that the long adjuster bolt goes through, and loosen the belt by turning the long adjuster bolt, take off the belt. to adjust the power steering belt, there is a long adjuster bolt that moves a tensioner pulley, first you have to loosen the nut that holds the pulley in place , now the pulley can be moved with the adjuster bolt.
remove the negative battery cable from the battery. loosen the serpentine belt by using an open-end box wrench and pull the tensionpulley back (it's spring loaded, so be careful) by the bolt, remove the belt from the alternator and the tensionpulley, then slowly let the tensionpulley loose. remove the nuts holding the wires on to the alternator. remove the bolts from the alternator mount, and remove the alternator. put the new one on and hand tighten all of the bolts. then tighten them down with a wrench. put the belt back on the alternator pulley and make sure it's on all of the other pulleys and wheels except the tension. use the wrench again and pull the pulley towards you with your right hand and put the belt under the pulley with your left, and let the pulley go back. reconnect the wires to the alternator and then the battery. **warning** make sure that the battery is fully charged before you start the car with the new alternator, or you'll cause "alternator death" and void your warranty.
It is a pulley, and it pivots in ( or out in some models) to loosen belt, you may need a special wrench. You can ID the belt tensioner assy. by watching the belt when the engine is running, it is the one that moves quickly in and out as it holds tension on the belt.