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:
LH (left-hand) side shown, RH (right-hand) side similar.
NOTE:
Removal steps in this procedure may contain installation details.
All vehicles
NOTE:
The PMI process must begin with the current door
latch control module installed...
Preliminary Inspection
Visually inspect the CV joints, housing, boots, and clamps for obvious signs of mechanical damage.
If an obvious cause for an observed or reported concern is
found, correct the cause (if possible) before proceeding to the next
step
If the cause is not visually evident, verify the symptom and REFER to Symptom Chart: NVH...