REMOVAL & INSTALLATION
Fig. 1: A gauge is recommended, but you can check belt tension with thumb pressure
Fig. 2: Loosen the component's mounting and adjusting bolts slightly to remove or adjust the belt(s)
Fig. 3: Push the component toward the engine and slip off the belt
Fig. 4: Slip the new belt over the pulley
Fig. 5: Pull outward on the component and tighten the mounting bolts
Fig. 6: Accessory mountings found on 6.2L diesel engines
- Loosen the driven accessory's pivot and mounting bolts.
- Move the accessory toward or away from the engine until the tension is correct. You can use a wooden hammer handle, or broomstick, as a lever, but do not use anything metallic, such as a prybar.
- Tighten the bolts and recheck the tension. If new belts have been installed, run the engine for a few minutes, then recheck and readjust as necessary.
It is better to have belts too loose than too tight, because overtight belts will lead to bearing failure, particularly in the water pump and alternator. However, loose belts place an extremely high impact load on the driven component due to the whipping action of the belt.