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 TM 9-2815-220-24
CYLINDER ASSEMBLY REPAIR
0135 00
INSPECTION (Continued)
4. Measure cylinder (1) bore at room temperature.
a. Take first set of measurements at points A through E. Measure diameter approximately
parallel to line of valves.
b. Take second set of measurements 90 degrees to first set.
c. Average the measurements.
d. If head end average measurements exceed flange end average measurements, replace
cylinder.
NOTE
Cylinder bores may taper slightly (smaller at head end) at room
temperature. The tapered section expands and is essentially straight
at operating temperature.
1
5. Compare measurement sets.
a. At each point (A through E), measurements must be within 0.003 inch (0.0762 mm) of
each other. If the difference exceeds 0.003 inch (0.0762 mm), the cylinder is out-of-round
and must be replaced.
b. Compare the measurements to limits in the following table. If cylinder is out of limits,
replace cylinder.
Cylinder Bore
Size and Fit of New Parts
Wear Limits
(average of A-E)
inches (mm)
inches (mm)
Standard bore diameter
5.7510 (146.0754)
5.7530 (146.1262)
5.7600 (146.304)
0.0100 (0.25) oversize bore
5.7610 (146.3294)
5.7630 (146.3802)
5.7700 (146.558)
0.0200 (0.50) oversize bore
5.7710 (146.5834)
5.7730 (146.6342)
5.7800 (146.812)
0.0300 (0.762) oversize bore
5.7810 (146.8374)
5.7830 (146.8882)
5.7900 (147.066)
0.0400 (1.01) oversize bore
5.7910 (147.0914)
5.7930 (147.1422)
5.8000 (147.32)
Maximum out-of-round
0.0020 (0.0508)
0.0030 (0.0762)
WP 0135 00-8
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