Bearings - Crankshaft Main: Inspection

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Main Bearing Wear Patterns

Courtesy of DAIMLERCHRYSLER CORP.

1 - UPPER INSERT

2 - NO WEAR IN THIS AREA

3 - LOW AREA IN BEARING LINING

4 - LOWER INSERT

Wipe the inserts clean and inspect for abnormal wear patterns and for metal or other foreign material imbedded in the lining. Normal main bearing insert wear patterns are illustrated. See Fig 1.

NOTE: If any of the crankshaft journals are scored, the crankshaft must be repaired or replaced.

Inspect the back of the inserts for fractures, scrapings or irregular wear patterns.

Inspect the upper insert locking tabs for damage.

Replace all damaged or worn bearing inserts.