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 TM 55-1905-221-14-1
Table 1-2. Engine Repair and Replacement Standards (Metric) (Continued).
Manufacturers'
Dimensions and
Desired
Component
Tolerances In Inches
Clearance
Maximum*
Allowable
Wear and
Minimum
Maximum
Minimum
Maximum
Clearances
(cm)
(cm)
(cm)
(cm)
In Centimeters
CAM FOLLOWERS
Diameter ................................ .........................
2.6924
2.6949
..........
..........
..........
Clearance, follower to head.............................
..........
..........
.0025 .
.0076..
.0152
CAM FOLLOWER ROLLERS AND PINS
Clearance, pin to bushing................................
..........
..........
.0033 .
.0053..
.0254
Side clearance, roller in follower .....................
..........
..........
.0381 .
.0584..
.0584
CRANKSHAFT
Journal diameter, main bearing.......................
8.8875
8.89...
..........
..........
..........
Journal diameter, connecting rod....................
6.9825
6.99...
..........
..........
..........
Journal out-of-round................................ ........
..........
.00064
..........
..........
.0025
Journal taper................................ ...................
..........
.0013.
..........
. .0038
**Runout on journals-total indicator reading
(mounted on #1 and #7 journals)
At No. 2 and No. 6 journals...........................
..........
.0051.
..........
..........
..........
At No. 3 and No. 5 journals...........................
..........
.0102.
..........
..........
..........
At No. 4 journal ................................ ..............
..........
.0152.
..........
..........
..........
Thrust washer, thickness................................ .
.3061 .
.3099.
..........
..........
..........
End thrust clearance (end play).......................
..........
..........
.0102 .
.0280..
.0457
MAIN BEARINGS
Bearing inside diameter (vertical axis) ............
8.8936
8.8986
..........
..........
..........
Clearance-bearing-to-journal...........................
..........
..........
.0036 .
.0112..
.0015
Bearing thickness 90from parting line...........
.3932 .
.3898.
..........
..........
.3886 (min)
CONNECTING ROD BEARINGS
Inside diameter (vertical axis) .........................
6.9885
6.9936
..........
..........
..........
Clearance-bearing-to-crankshaft journal..........
..........
..........
.0036 .
.0112..
.0152
Bearing thickness, 90from parting line..........
.8932 .
.2987.
..........
..........
.3886 (min)
1-22
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