The water pump is belt driven. This same belt may also drive the fan and/or alternator. The drive belt(s) should be properly
adjusted at all times. A loose drive belt causes improper alternator, fan and water pump operation, in addition to
overheating. Over tightening the belt may result in excessive wear on the alternator and water pump bearings, as well as
premature wear on the belt itself. Therefore, it is recommended that a belt tension gauge be used to check and adjust the
belt tension. Any belt that has operated for a minimum of 10 minutes is considered a used belt, and, when adjusted, it
must be adjusted to the reset tension shown in the specifications.
Install the belt tension tool on the drive belt and check the tension following the instructions of the tool
Checking Belt Tension
If the tension is not to specification, loosen the alternator mounting and adjusting arm bolts. Move the alternator
away from the engine until the correct tension is obtained. Remove the gauge. Tighten the alternator adjusting arm and
mounting bolts. Install the tension gauge and recheck the belt tension.