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:
Do not use a different size spare tire other
than the tire provided. If the mini-spare tire
is installed, the AWD system will disable and
enter rear-wheel drive only mode to protect
driveline components. Some limited AWD
traction could be provided if the mini-spare
is installed on one of the front wheels...
Not every vehicle includes the features listed
below. If your vehicle has this equipment,
then you cannot change the following
settings when using a MyKey:
Seatbelt reminder or Belt-Minderâ„¢. MyKey
mutes the audio system until drivers, and
in some instances, passengers, fasten
their seatbelts...