Lincoln Navigator: Engine System - General Information / Bearing Inspection. General Procedures
Inspection
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Cratering - fatigue failure
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Spot glazing - incorrect seating
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Scratching - dirty engine oil
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Base exposed - poor lubrication
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Both edges worn - journal damaged
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One edge worn - journal tapered or bearing not seated
Symptom Charts
Symptom Chart - Gasoline Engine Performance
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...
Make sure the oil in the crankcase is of the correct
viscosity and at the correct level and that the battery is correctly
charged. Operate the vehicle until the engine is at normal operating
temperature...
Other information:
Special Tool(s) /
General Equipment
Interior Trim Remover
Removal
NOTE:
Removal steps in this procedure may contain installation details.
NOTE:
RH side shown, LH side similar.
If equipped.
Remove the bolts and the roof luggage carriers...
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
NOTE:
The crankshaft connecting rod journals must be
within specifications to check the connecting rod bearing journal
clearance.
Remove the connecting rod bearing cap and connecting rod bearing...