TM 55-2815-574-24
0060
INSPECTION
1.
Inspect valve guides (Figure 1, Item 2) for fractures, chipping, scoring or wear. Replaced damaged parts.
2.
Using inside micrometer, measure inside diameter of each valve guide at the top and record readings.
3.
Inspect valve stems for scratches and scuff marks. If stems are scratched or scuffed, replace valves
4.
If original valves are being re-used, measure outside diameter of valve stems with outside micrometer and
record readings.
5.
Compare readings of inside diameter of guide with outside diameter of valve stem to obtain valve-to-guide
clearance.
6.
If clearance exceeds 0.005 in. (0.127 mm), replace valves and valve guides (WP 0059).
END OF TASK
FOLLOW-ON MAINTENANCE
1.
Install cylinder head exhaust valves (WP 0046).
2.
Install cylinder head cam followers (WP 0053).
3.
Install fuel system injectors (WP 0091).
4.
Install cylinder head exhaust valve bridges (WP 0058).
5.
Install cylinder head poppet valve rocker arms (WP 0049).
6.
Install fuel manifold (WP 0051).
END OF TASK
END OF WORK PACKAGE
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