See Figures 1, 2, 3, 4 and 5
The belt which drives the engine accessories, such as the alternator, air pump, power steering pump, air conditioning compressor and water pump are of a serpentine design. Older vehicles utilized V-belts, which show wear and damage readily, since their basic design was a belt with a rubber casing. As the casing wore, cracks and fibers were readily apparent. Newer, caseless belts do not show wear as readily, and an untrained eyes cannot distinguish between a good, serviceable belt and one that is worn to the point of failure.
It is a good idea, therefore, to visually inspect the belts regularly and replace them routinely. Refer to the maintenance charts at the end of this section.
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.
On most newer vehicles, a single serpentine belt is used to drive all of the engine accessories formerly driven by multiple V-belts. All the belt driven accessories are rigidly mounted with belt tension maintained by a spring loaded tensioner. Because of the belt tensioner, no adjustment is necessary.
REMOVAL & INSTALLATION
See Figures 6, 7, 8, 9, 10 and 11
- Turn the drive belt tensioner downward (clockwise), using a socket and handle on tensioner pulley bolt/screw.
- Clean the accessory drive belt surfaces.
- Install the drive belt over the pulleys. Rotate the tensioner assembly and install the belt over the tensioner pulley.
Be sure drive belt is aligned into the proper grooves in the accessory drive pulleys.