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 BCM.
Refer to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
NOTICE:
Do not service the brake pedal or brake booster
without first removing the stoplamp switch...
System Operation
Brake Over Accelerator
NOTE:
On some vehicles, for off road use the brake over
accelerator feature can be disabled along with the electronic stability
control system by pressing and holding the traction control OFF button
for 5 seconds...