Lexus IS250 IS220d GSE20 ALE20 4GR-FSE ENGINE MECHANICAL
DRIVE BELT - INSPECTION
| 1. INSPECT V-RIBBED BELT |
Visually check the V-ribbed belt for excessive wear, frayed cords, etc.
If any defect has been found, replace the V-ribbed belt.
- HINT:
- Cracks on the rib side of a V-ribbed belt are considered acceptable.
- If the V-ribbed belt has chunks missing from its ribs, it should be replaced.
- HINT:
After installing the V-ribbed belt, check that it fits properly in the ribbed grooves. Check to confirm that the belt has not slipped out of the grooves on the bottom of the crank pulley by hand.
A "new belt" is a belt which has been used for less than 5 minutes with the engine running.
A "used belt" is a belt which has been used for 5 minutes with the engine running.
After installing a new belt, run the engine for approximately 5 minutes and then recheck the tension.
| 2. INSPECT V-RIBBED BELT TENSIONER ASSEMBLY |
Check that nothing gets caught in the tensioner by turning it clockwise and counterclockwise.
If a malfunction exists, replace the tensioner.
LEXUS IS250, IS220d / GSE20 ALE20