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 TM 9-2815-220-24
PISTONS, RINGS, AND ASSOCIATED PARTS REPLACE/REPAIR
0142 00
INSPECTION (Continued)
NOTE
Inside Width
Piston ring locations are
A
numbered from the top down.
B
C
5. Check the second (A), third (B), and
fourth (C) ring grooves against limits
specified below.
a. Replace pistons that do not meet the
following limits.
Location
Sizes and Fits of New Parts
Wear Limits
inches (mm)
A (Inside groove width)
0.0990 (2.5146)
0.1000 (2.54)
0.1035 (2.6289)
B (Inside groove width)
0.0980 (2.4892)
0.0990 (2.5146)
0.1025 (2.6035)
C (Inside groove width)
0.1880 (4.7752)
0.1890 (4.8006)
1.1910 (30.2514)
6. Measure piston (4) skirt.
a. Measure the piston diameter at the
bottom of the skirt 90 degrees to piston
pin (D).
b. Replace pistons that do not meet the
4
following limits.
D
Location and Size
Sizes and Fits of New Parts
Wear Limits
inches (mm)
5.7380 (145.7452)
5.7420 (145.8468)
5.7410 (145.8214)
D
(Standard)
5.7480 (145.9992)
5.7520 (146.1008)
5.7510 (146.0754)
D
(0.0100-inch oversize)
5.7580 (146.2532)
5.7620 (146.3548)
5.7610 (146.3294)
D
(0.0200-inch oversize)
5.7680 (146.5072)
5.7720 (146.6088)
5.7710 (146.5834)
D
(0.0300-inch oversize)
5.7780 (146.7612)
5.7820 (146.8628)
5.7810 (146.8374)
D
(0.0400-inch oversize)
WP 0142 00-7
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