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:
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
Measure the cylinder bore at the top, middle and bottom
of piston ring travel in 2 directions as indicated. Verify the cylinder
bore is within the wear limit. The difference indicates the cylinder
bore taper...
BLIS®
The BLIS®
aids the driver in assessing whether another vehicle is present within a
specific area (blind spot) to either side of the vehicle, extending
rearward approximately 6 m (20 ft) beyond the rear bumper while driving
on roads and highways...