Inspecting Drive Belt

WARNING: This page is about a different car, the 2002 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Cracks on the rib side of a belt are considered acceptable. If the missing chunks from the ribs are found on the belt, it should be replaced.

Fig 1: Identifying Belt Defects

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Visually check the belt for excessive wear, frayed cords, etc.
If any defect has been found, replace the drive belt.

NOTE:

"New belt" refers to a belt which has been used less than 5 minutes on a running engine.
"Used belt" refers to a belt which has been used on a running engine for 5 minutes or more.
After installing a belt, check that it fits properly in the ribbed grooves.

Fig 2: Confirming Correct Belt Installation
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Check with your hand to confirm that the belt has not slipped out of the groove on the bottom of the pulley.
After installing a new belt, run the engine for about 5 minutes and recheck the belt tension.

Fig 3: Measuring Belt Tension

5VZ-FE engine: Belt tension gauge, DENSO BTG-20 (95506-00020), Borroughs No. BT-33-73F.
Drive belt tension: New belt: 135-180 lbf, Used belt: 85-120 lbf.

If the belt tension is not as specified, adjust it.