See Figures 1 through 5
Inspect the belts for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately. It is best to replace all drive belts at one time, as a preventive maintenance measure, during this service operation.
REMOVAL, INSTALLATION & ADJUSTMENT
See Figures 6 through 10
Belts are normally adjusted by loosening the bolts of the accessory being driven and moving that accessory on its pivot points until the proper tension is applied to the belt. The accessory is held in this position while the bolts are tightened. To determine proper belt tension, you can purchase a belt tension gauge or simply use the deflection method. To determine deflection, press inward on the belt at the mid-point of its longest straight run. The belt should deflect (move inward) 3 / 8 - 1 / 2 in. (10-13mm). Some long V-belts and most serpentine belts have idler pulleys which are used for adjusting purposes. Just loosen the idler pulley and move it to take up or release tension on the belt.
Proper belt tension is important because it will allow the belt to run quietly and will maximize the belt's service life.
- Remove the air duct.
- Loosen the No. 1 idler pulley nut and adjusting bolt.
- Remove the drive belt from the engine.
Install the drive belt and adjust the belt with the adjusting bolt. Adjust the drive belt to the following specifications:
New belt-160-180 ft. lbs.
- Tighten the No. 1 idler pulley nut.
- Install the air duct.
- Remove the alternator/power steering drive belt from the engine.
- Loosen the No. 2 idler pulley nut and adjusting bolt.
- Remove the drive belt from the supercharger.
- Install the drive belt to the supercharger.
Tighten the adjusting bolt and adjust the drive belt to the following specifications:
New belt-160-180 ft. lbs.
- Install the alternator/power steering drive belt to the engine.
- Remove the alternator/power steering drive belt.
- Remove the supercharger drive belt.
- Raise and safely support the vehicle.
- Loosen the idler pulley lock nut.
- Loosen the adjusting bolt to the idler pulley and remove the compressor drive belt.
Install the compressor drive belt to the engine and tighten the adjusting bolt to the idler pulley. Drive belt tension is as follows:
New belt-145-185 lbs.
- Tighten the idler pulley lock nut to 29 ft. lbs. (39 Nm).
- Install the supercharger drive belt.
- Install the alternator/power steering drive belt.
- Recheck belt tension.