Belt tension is not adjustable. Belt adjustment is maintained by an automatic ( spring load ) belt tensioner.
Belt Tension Inspection
- Inspect the drive belt 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.
- Check condition of all pulleys.
Drive Belt Routings
Removal & Installation
- Disconnect negative battery cable from battery.
- Rotate belt tensioner counterclockwise until it contacts it's stop.
Remove belt, then slowly rotate the tensioner into the freearm position.
WARNINGWhen installing the serpentine accessory drive belt, the belt MUST be routed correctly. If not, the engine may overheat due to the water pump rotating in the wrong direction.
- Install new belt.
- Route the belt around all pulleys except the idler pulley.
- Rotate the tensioner arm until it contacts it's stop position.
Route the belt around the idler and slowly let the tensioner rotate into the belt.
WARNINGMake sure the belt is seated onto all pulleys.
ON all engines, the tensioner is equipped with an indexing tang on back of tensioner and an indexing stop on tensioner housing. If a new belt is being installed, tang must be within approximately 6 - 8mm (0.24 - 0.32 in.) of indexing stop (i.e. tang is approximately between the two indexing stops). Belt is considered new if it has been used 15 minutes or less.
- With the drive belt installed, inspect the belt wear indicator.