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TM 10-4320-343-14
Table 6-1.
Wear Limits, Fits and Tolerances.
(continued)
Component
Valve guides:
Outside diameter - normal
Bore in cylinder head diameter
Pressed in inside diameter
Valve Springs:
T o t a l c o i l s
Normal length
Minimum length
Cylinder Head:
Distance between cylinder head
bottom and cylinder head joint
w/o shim bolts
Nominal length
Maximum length
Cylinders:
Bore diameter - normal
Bore wear maximum
Pistons:
Diameter, normal
Diameter of bore for
connecting rod pin
Connecting rod pin diameter
1st ring groove width
2nd and 3rd ring groove widths
4th ring groove width
Piston Rings:
1st ring clearance in groove
1st ring maximum clearance in groove
2nd ring clearance in groove
2nd ring maximum clearance in groove
3rd ring clearance in groove
3rd ring maximum clearance in groove
4th ring clearance in groove
4th ring maximum clearance in groove
Gap, 1st, 2nd, and 3rd rings, normal
Gap, 1st, 2nd, and 3rd rings,
maximum
Gap, 4th ring, normal
Gap, 4th ring, maximum
Minimum
0.5923 in. (15.45 mm)
0.5905 in. (15.00 mm)
0.3149 in. (8.00 mm)
7
2.2480 in. (57.1 mm)
2.2047 in. (56.0 mm)
0.2283 in. (5.8 mm)
8.287 in. (210.50 mm)
3.937 in. (100.00 mm)
3.9331 in. (99.901 mm)
1.3779 in. (35.0 mm)
1.3777 in. (34.994 mm)
0.0907 in. (2.305 mm)
0.0984 in. (2.50 mm)
0.1969 in. (5.00 mm)
0.0031 in. (0.079 mm)
0.0039 in. (0.10 mm)
0.0039 in. (0.10 mm)
0.0015 in. (0.04 mm)
0.0137 in. (0.350 mm)
0.0098 in. (0.250 mm)
Maximum
0.5927 in. (15.056 mm
0.5909 in. (15.011 mm
0.3155 in. (8.015 mm)
2.23976 in. (60.9 mm)
0.2480 in. (6.3 mm)
8.326 in. (211.5 mm)
8.3661 in. (212.5 mm)
3.937 in. (100.022) mm
0.0079 in. (0.2 mm)
3.9338 in. (35.006 mm)
1.3781 in. (99.919 mm)
1.3779 in. (35.0 mm)
0.0915 in. (2.325 mm)
0.1020 in. (2.590 mm)
0.1980 in. (5.03 mm)
0.0046 in. (0.119 mm)
0.0196 in. (0.50 mm)
0.0051 in. (0.132 mm)
0.0118 in. (0.30 mm)
0.0051 in. (0.132 mm)
0.0118 in. (0.30 mm)
0.0028 in. (0.072 mm)
0.0059 in. (0.15 mm)
0.0216 in. (0.550 mm)
0.1574 in. (4.0 mm)
0.0157 in. (0.40 mm)
0.0984 in. (2.50 mm)
6-4
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