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Last Modified: 11-27-2007 1.6 G
Service Category: Engine/Hybrid System Section: Engine Mechanical
Model Year: 2008 Model: LX570 Doc ID: RM000002WF6007X
Title: 3UR-FE ENGINE MECHANICAL: DRIVE BELT: ON-VEHICLE INSPECTION (2008 LX570)

ON-VEHICLE INSPECTION

1. INSPECT FAN AND GENERATOR V BELT

(a) Check the belt for wear, cracks or other signs of damage.

If any of the following defects is found, replace the fan and generator V belt.

  • The belt is cracked.
  • The belt is worn out to the extent that the cords are exposed.
  • The belt has chunks missing from the ribs.

(b) Check that the belt fits properly in the ribbed grooves.

HINT:

Check with your hand to confirm that the belt has not slipped out of the grooves on the bottom of the pulley. If it has slipped out, replace the fan and generator V belt. Install a new fan and generator V belt correctly.

2. INSPECT V-RIBBED BELT TENSIONER ASSEMBLY

(a) Check that nothing gets caught in the tensioner by turning it clockwise and counterclockwise. If a malfunction exists, replace the tensioner.