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 TM 55-1905-221-14-1
Table 1-1. Engine Repair and Replacement Standards (American Standard).
Manufacturers'
Dimensions and
Desired
Component
Tolerances In Inches
Clearance
Maximum*
Allowable
Wear and
Minimum
Maximum
Minimum
Maximum
Clearances
Inches
Inches
Inches
Inches
In Inches
CYLINDER BLOCK
Block bore
Diameter ................................ ......................
4.6265
4.6275
..........
..........
..........
Out of Round ................................ ...............
..........
0.0010
..........
..........
0.0030
Taper ................................ ...........................
..........
0.0010
..........
..........
0.0020
Cylinder liner counterbore
Diameter ................................ ......................
5.0460
5.0485
..........
..........
..........
Depth................................ ...........................
0.4785
0.4795
..........
..........
..........
Main bearing bore
Inside diameter ................................ ............
3.8120
3.8130
..........
..........
..........
Top surface of cylinder block
Center line of crankshaft to
top of cylinder block distance.......................
16.1840
16.1890
..........
..........
16.1760 min.
Flatness-transverse................................ ......
..........
..........
..........
..........
0.0030
Flatness-longitudinally ................................ .
..........
..........
..........
..........
0.0090
Depth of counterbores (top surface)
Cylinder head seal strip groove....................
0.0920
0.1070
..........
..........
..........
Large water holes (between cylinders).........
0.1090
0.1200
..........
..........
..........
Small water holes (at ends)..........................
0.0870
0.0980
..........
..........
..........
CYLINDER LINERS
Outside diameter ................................ ............
4.6250
4.6260
..........
..........
..........
Inside diameter ................................ ...............
4.2495
4.2511
..........
..........
..........
Clearance-liner-to block bore ..........................
..........
..........
0.0005
0.0025
0.0030
Out-of-round-liner inside diameter...................
..........
0.0020
..........
..........
0.0030
Taper-liner inside diameter .............................
..........
0.0010
..........
..........
0.0020
1-12
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