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:
Inspection and Verification - Engine Performance
NOTE:
There are 2 diagnostic paths that can be followed depending
on the type of engine concern. Carry out Inspection and Verification -
Engine Performance or Inspection and Verification - NVH.
Some engines and
transmissions are equipped with PTLP (powertrain limiting and
protection) strategy that will limit power under various conditions to
protect the engine and the transmission...
WARNING: Driving while distracted
can result in loss of vehicle control, crash
and injury. We strongly recommend that
you use extreme caution when using any
device that may take your focus off the
road. Your primary responsibility is the safe
operation of your vehicle...