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
NOTICE:
During engine repair procedures, cleanliness is extremely
important. Any foreign material, including any material created while
cleaning gasket surfaces, that enters the oil passages, coolant passages
or the oil pan, can cause engine failure...
System Operation
System Diagram
Item
Description
1
PCM
2
Starter relay
3
Starter motor
4
BCM
5
Automatic transmission
6
Ignition switch
Network Message Chart
Module Network Input Messages Powertrain Control Module (PCM)
Broadcast Message
Originating Module
Message Purpose
Ignition status
BCM
Provides the PCM with ignition mode...