Lincoln Aviator: Engine System - General Information / General Procedures - Valve Stem Diameter
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
-
Measure the diameter of each intake and exhaust valve
stem at the points shown. Verify the diameter is within specification.
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
NOTE:
Valve guides tend to wear in an hourglass pattern.
The ball gauge can be inserted into the combustion chamber side of the
valve guide, if necessary...
Other information:
Pressure release
With the vehicle in NEUTRAL, position it on a hoist.
Refer to: Jacking and Lifting (100-02 Jacking and Lifting, Description and Operation).
Remove the fasteners.
Remove the nuts...
Condensation in the Exterior Front Lamps and Rear Lamps
Exterior front lamps and rear lamps have
vents to accommodate normal changes in
air pressure.
Condensation can be a natural by-product
of this design. When moist air enters the
lamp assembly through the vents, there is a
possibility that condensation can occur when
the temperature is cold...