Lincoln Aviator: Engine System - General Information / General Procedures - Camshaft Surface Inspection
-
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:
WARNING: Always disconnect the
battery before servicing high current fuses.
WARNING: To reduce risk of
electrical shock, always replace the cover
to the power distribution box before
reconnecting the battery or refilling fluid
reservoirs.
The engine compartment fuse box is under
the driver side leaf screen in the engine
compartment...
Activation
Phase 1 - Leak Verification
Run the EVAP Test with the scan tool.
NOTE:
Some small leaks may not be detected using the EVAP Test. If the system has passed the test but a leak is still suspected, then proceed to Phase 2...