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:
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Remove the rear spoiler.
Refer to: Rear Spoiler (501-08 Exterior Trim and Ornamentation, Removal and Installation).
Remove the high mounted stoplamp plugs shown...
WARNING: Do not adjust the mirrors
when your vehicle is moving. This could
result in the loss of control of your vehicle,
serious personal injury or death.
Note: Do not clean the housing or glass of
any mirror with harsh abrasives, fuel or other
petroleum or ammonia-based cleaning
products...