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 TM 55-1905-221-14-1
Table 1-1. Engine Repair and Replacement Standards (American Standard) (Continued)
Manufacturers'
Dimensions and
Desired
Component
Tolerances In Inches
Clearance
Maximum*
Allowable
Wear and
Minimum
Maximum
Minimum
Maximum
Clearances
Inches
Inches
Inches
Inches
In Inches
PISTON PIN BUSHINGS
Inside diameter ................................ ...............
1.5025
1.5030
..........
..........
1.5050
CONNECTING ROD
Inside diameter upper bushing........................
1.5015
1.5020
..........
..........
1.5080
Normal rod side clearance ..............................
..........
..........
0.0060
0.0120
..........
CONNECTING ROD BEARINGS
Inside diameter ................................ ...............
2.7514
2.7534
..........
..........
..........
Clearance-bearing-to-crankshaft journal..........
0.0014
0.0044
0.0060
Bearing thickness 90from parting line...........
0.1548
0.1553
..........
..........
0.1530
CAMSHAFT
Shaft diameter-at-bearings
Front and rear ................................ ..............
1.4970
1.4975
..........
..........
..........
Center and intermediate...............................
1.4980
1.4985
..........
..........
..........
Shaft diameter-at-gear................................ ....
1.1875
1.1880
..........
..........
..........
Length-thrust bearing end journal....................
2.8740
2.8760
..........
..........
..........
End thrust ................................ .......................
0.0040
0.0120
..........
..........
..........
Thrust washer thickness................................ ..
0.1200
0.1220
..........
..........
..........
BALANCE SHAFT
Shaft diameter at bearings..............................
1.4970
1.4975
..........
..........
..........
Shaft diameter at gear ................................ ....
1.1875
1.1880
..........
..........
..........
Length-thrust bearing end journal....................
2.8740
2.8760
..........
..........
..........
End thrust ................................ .......................
0.0040
0.0120
..........
..........
0.0180
Thrust washer thickness................................ ..
0.1200
0.1220
..........
..........
..........
1-16
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