F 150 4WD V8-5.4L Flex Fuel (2008)
Crankshaft Main Bearing: Testing and Inspection
Bearing Inspection
1. Inspect bearings for the following defects:
1
Cratering - fatigue failure
2
Spot polishing - incorrect seating
3
Imbedded dirty engine oil
4
Scratching dirty engine oil
5
Base exposed - poor lubrication
6
Both edges worn - journal damaged
7
One edge worn journal tapered or bearing not seated
