Lincoln Aviator: Engine System - General Information / General Procedures - Valve Guide Inner Diameter
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.
-
Use a ball gauge to determine the inside diameter of
the valve guides in 2 directions at the top, middle and bottom of the
valve guide.
-
Measure the ball gauge with a micrometer.
-
If the valve guide is not within specifications, install a new cylinder head assembly.
Inspection
NOTE:
Dropped spark plugs should always be discarded.
Unfired
An unfired spark plug should appear very clean
with a pure nickel finish to the threads and ground strap...
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...
Other information:
When you start the engine, the idle speed
increases. This helps to warm up the
engine. If the engine idle speed does not
slow down, have your vehicle checked as
soon as possible.
Note: You can crank the engine for a total
of 60 seconds without the engine starting
before the starting system temporarily
disables...
Special Tool(s) /
General Equipment
Flat Headed Screw Driver
Removal
NOTE:
Left hand side (LH) shown, right hand side (RH) similar.
Lift the windshield wiper blade and arm assembly off of the windshield.
Rotate the blade towards the windshield until the blade is locked in position...
Categories
The front outboard and rear safety restraints
in the vehicle are combination lap and
shoulder belts.
Insert the belt tongue into the proper
buckle (the buckle closest to the direction
the tongue is coming from) until you hear
a snap and feel it latch. Make sure that
you securely fasten the tongue in the
buckle.

To unfasten, press the release button
and remove the tongue from the buckle.
read more