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:
Periodically inspect the tire treads for
uneven or excessive wear and remove
objects such as stones, nails or glass
that may be wedged in the tread
grooves. Check the tire and valve stems
for holes, cracks, or cuts that may permit
air leakage and repair or replace the tire
and replace the valve stem...
Removal
NOTE:
LH (left-hand) side shown, RH (right-hand) side similar.
NOTE:
Removal steps in this procedure may contain installation details.
NOTE:
The PMI process must begin with the current door
latch control module installed. If the current door latch control module
does not respond to the diagnostic scan tool, the tool may prompt for
As-Built Data as part of the repair...