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:
The design of the system is to aid you in
detecting vehicles that could have entered
the detection area zone (A). The detection
area is on both sides of your vehicle and
trailer, extending rearward from the exterior
mirrors to the end of your trailer...
Your vehicle has a SelectShift Automatic
transmission. The SelectShift Automatic
transmission gives you the ability to change
gears up or down, without a clutch, as
preferred.
To prevent the engine from running at too
low an RPM, which could cause it to stall,
SelectShift still makes some downshifts if it
determines that you have not downshifted
in time...