GS 400 V8-4.0L (1UZ-FE) (1999)
Drive Belt: Testing and Inspection
1. INSPECT DRIVE BELT'S INSTALLATION CONDITION
Check that the drive belt fits properly in the ribbed grooves.
2. INSPECT DRIVE BELT
HINT: A belt tensioner is used, so checking the belt tension is not necessary.
a. Visually check the drive belt for excessive wear, frayed cords, etc.
If necessary, replace the drive belt.
HINT:
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Cracks on the rib side of a drive belt are considered acceptable. If the drive belt has chunks missing from the ribs, it should be replaced.
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The drive belt tension can be released by turning the belt tensioner clockwise.
Fig. 50 Serpentine Belt Tensioner
3. INSPECT DRIVE BELT TENSION
Check that the arrow mark on the belt tensioner falls within area "A" of the scale.
If it is out side area "A", replace the drive belt.