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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
CAM FOLLOWERS
Diameter ................................ .........................
1.0600
1.0610
..........
..........
..........
Clearance, follower to head.............................
..........
..........
0.0010
0.0030
0.0060
CAM FOLLOWER ROLLERS AND PINS
Clearance, pin to bushing................................
..........
..........
0.0013
0.0021
0.0100 (horiz)
Side clearance, roller in follower .....................
..........
..........
0.0150
0.0230
0.0230
CRANKSHAFT
Journal diameter, main bearing.......................
3.499 .
3.5000
..........
..........
..........
Journal diameter, connecting rod....................
2.749 .
2.750.
..........
..........
..........
Journal out-of-round................................ ........
..........
0.00025
..........
..........
0.0010
Journal taper................................ ...................
..........
0.0005
..........
..........
0.0015
**Runout on journals-total indicator reading
(mounted on #1 and #7 journals)
At No. 2 and No. 6 journals...........................
..........
0.0020
..........
..........
..........
At No. 3 and No. 5 journals...........................
..........
0.0040
..........
..........
..........
At No. 4 journal ................................ ..............
..........
0.0060
..........
..........
..........
Thrust washer, thickness................................ .
0.1205
0.1220
..........
..........
..........
End thrust clearance (end play).......................
..........
..........
0.0040
0.0110
0.0180
MAIN BEARINGS
Bearing inside diameter (vertical axis) ............
3.5014
3.5034
..........
..........
..........
Clearance-bearing-to-journal...........................
..........
..........
0.0014
0.0044
0.0060
Bearing thickness 90from parting line...........
0.1548
0.1553
..........
..........
0.1530(min)
CONNECTING ROD BEARINGS
Inside diameter (vertical axis) .........................
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(min)
1-14
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