Lincoln Aviator: Engine System - General Information / General Procedures - Camshaft Surface Inspection
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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. The opening ramp
is the point where the lifter just begins to lift until the point it
reaches the nose of the lobe. The closing ramp is the point from the
nose back down to the lash point. The base circle of the camshaft is not
the active area.
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...
Other information:
Removal
NOTE:
Removal steps in this procedure may contain installation details.
All vehicles
Remove the front door trim panel.
Refer to: Front Door Trim Panel (501-05 Interior Trim and Ornamentation, Removal and Installation).
Front door mid range speaker
Separate the wiring harness guide, remove the screws and the front door mid range speaker
Torque:
22 lb...
DISASSEMBLY
NOTICE:
The RH and LH pistons are similar in appearance but differ
in design specifications. The pistons must be installed in the correct
cylinder bank or serious damage to the engine will occur.
Remove and discard the piston rings...