Other information:
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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...
General Specifications - Alignment Mat Spacing
Item
Specification
Measurement "A" - distance between the inside edges of the alignment mats
89 in (226 cm)
Measurement "X" - distance between the alignment mat target pattern blocks
113 in (287 cm)
..