GX 470 V8-4.7L (2UZ-FE) (2004)
Drive Belt: Testing and Inspection
INSPECT FAN AND GENERATOR V BELT
HINT: The belt tensioner coordinates a belt tension automatically by its mechanism, you do not need to adjust it by yourself.
a. Check that the indicator mark on the automatic tensioner is within the A range as shown in the illustration.
b. When the mark is out of the standard range, exchange the V belt with new one.
INSPECT DRIVE BELT
a. Visually check the belt for excessive wear, frayed cords etc.
HINT:
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If any defect has been found, replace the drive belt.
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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. Check that it fits properly in the ribbed grooves.
HINT: Check with your hand to confirm that the belt has not slipped out of the groove on the bottom of the pulley.