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.
Disconnect the battery/batteries.
Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
Vehicles with H7 AGM battery
Disconnect the vent hose from the battery...
Warranty repairs to your vehicle must be
performed by an authorized dealer. While
any authorized dealer handling your vehicle
line provides warranty service, we
recommend you return to your selling
authorized dealer who wants to ensure your
continued satisfaction...