Lincoln Navigator: Engine System - General Information / Connecting Rod Bearing Journal Clearance. General Procedures
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.
-
Position a piece of Plastigage across the bearing surface.
-
NOTE:
Do not turn the crankshaft during this step.
Install and tighten to specifications, then remove the connecting rod bearing cap.
-
Measure the Plastigage to get the connecting rod bearing
journal clearance. The Plastigage should be smooth and flat. A changing
width indicates a tapered or damaged connecting rod or connecting rod
bearing.
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...
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
NOTE:
Crankshaft main bearing journals must be within specifications before checking journal clearance...
Other information:
Removal
Remove the main control valve body.
Refer to: Main Control Valve Body (307-01 Automatic Transmission -
10-Speed Automatic Transmission – 10R80, Removal and Installation).
Remove the OSS sensor.
Slide the plastic lock to the unlocked position...
Removal
Remove the front bumper cover.
Refer to: Front Bumper Cover (501-19 Bumpers, Removal and Installation).
Remove the screws and the bracket.
Remove the front parking aid camera and washer nozzle as an assembly...