Lincoln Aviator: Engine System - General Information / General Procedures - Bearing Inspection
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
Inspection and Verification - Engine Performance
NOTE:
There are 2 diagnostic paths that can be followed depending
on the type of engine concern. Carry out Inspection and Verification -
Engine Performance or Inspection and Verification - NVH...
Inspect the camshaft lobes for pitting or damage in the
active area. Minor pitting is acceptable outside the active area. The
active area includes the opening ramp and closing ramp...
Other information:
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Release the clips and remove the instrument panel center speaker grille.
Vehicles equipped with 14 speaker audio system
Remove the screws, disconnect the electrical connector and remove the instrument panel center speaker...
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Remove the rear bumper cover.
Refer to: Rear Bumper Cover (501-19 Bumpers, Removal and Installation).
Remove the following items:
Disconnect the hands-free liftgate actuation lower sensor electrical connector...