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 TM 9-2815-220-24
CYLINDER ASSEMBLY REPAIR
0135 00
INSPECTION (Continued)
6. Inspect valve guides (18, 19).
a. Look for cracks, galling, erosion, or scuffing.
b. If any cracks, galling, erosion, or scuffing is found, replace guides.
7. Check guides against limits specified in the following table.
a. If guides are out of limits, they must be replaced.
18
19
Point of Measurement
Size and Fit of New Parts
Wear Limits
inches (mm)
Inside diameter of intake valve
0.4995 (12.6873) 0.5005 (12.7127)
0.5035 (12.7889)
guide
Outside diameter of intake valve
0.4975 (12.6365)
0.4980 (12.6492)
0.4970 (12.6238)
stem
Fit of intake valve stem in guide
0.0015L (0.0381)
0.0030L (0.0762)
0.0065L (0.1651)
Inside diameter of exhaust valve
0.5615 (14.2621)
0.5625 (14.2875)
0.5655 (14.3637)
guide
Outside diameter of exhaust valve
0.5570 (14.1478)
0.5580 (14.1732)
0.5565 (14.1351)
stem
Fit of exhaust valve stem in guide
0.0035L (0.0889)
0.0055L (0.1397)
0.0090L (0.2286)
WP 0135 00-9
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