Ford Ecosport: 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:
Special Tool(s) /
General Equipment
8 mm Drill Bit
MIG/MAG Welding Equipment
Spot Weld Drill Bit
Locking Pliers
Materials
Name
Specification
Seam SealerTA-2-B, 3M™ 08308, LORD Fusor® 803DTM
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Removal
NOTE:
Factory welds may be substituted with resistance or metal
inert gas (MIG) plug welds...
Special Tool(s) /
General Equipment
A/C Odor Remover Flexible Applicator
Materials
Name
Specification
Motorcraft® A/C Cooling Coil CoatingYN-29
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Inspection
NOTE:
There are typically 4 types of objectionable odors found in a vehicle:
chemical odors
environmental odors
human and other interior-generated odors
..