Ford Explorer: Engine System - General Information / General Procedures - Valve Guide Inner Diameter
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
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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.
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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.
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Measure the ball gauge with a micrometer.
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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:
Initialization
Disconnect the battery or remove the RGTM fuse(s).
Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
NOTE:
Remove the battery power from the RGTM for 20 seconds before entering initialization mode...
WARNING: The system may not detect objects with surfaces that absorb reflection.
Always drive with due care and attention. Failure to take care may result in a crash.
WARNING: The system may not detect small or moving objects, particularly
those close to the ground...
Categories
4 Inch Display

A - Tachometer.
B - Information display.
C - Speedometer.
D - Fuel gauge.
E - Engine coolant temperature gauge.
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