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:
OVERVIEW
WARNING:
To prevent the risk of high-voltage shock, always follow
precisely all warnings and service instructions, including instructions
to depower the system. The high-voltage hybrid system utilizes
approximately 300 volts DC, provided through high-voltage cables to its
components and modules...
Removal
NOTE:
This step is only necessary if the HCM is being replaced.
NOTE:
If installing a new module, it is necessary to
upload the module configuration information to the scan tool prior to
removing the module. This information must be downloaded into the new
module after installation...