Prius L4-1.5L (1NZ-FXE) (Hybrid) (2003)
Drive Belt: Testing and Inspection
INSPECTION
1. INSPECT DRIVE BELT
a. Visually check the belt for excessive wear, frayed cords etc.
If any defect has been found, replace the drive belt.
HINT: Cracks on the rib side of a belt are considered acceptable. If the belt has chunks missing from the ribs, it should be replaced.
b. Using a belt tension gauge, measure the belt tension.
Belt tension gauge:
DENSO BTG-20 (95506-00020)
Borroughs No. BT-33-73F
Drive belt tension
If the belt tension is not as specified, adjust it.
HINT:
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"New belt" refers to a belt, which has been used less than 5 minutes on a running engine.
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"Used belt" refers to a belt, which has been used on a running engine for 5 minutes or more.
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After installing a belt, check that it fits properly in the ribbed grooves.
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Check with your hand to confirm that the belt has not slipped out of the groove on the bottom of the pulley.