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 *TM 9-2815-213-34
Fig.
Ref.
Point of Measurement
New Dimensions Wear Limits
No.
Letter
(inches)
(inches)
e. Tappet Bore Inside Diameter
g
Valve ................................................................................................ 1.1000 to 1.1010
1.1025
g
Injector ............................................................................................. 1.4000 to 1.4010
1.4025
Out-of-round .....................................................................................
0.0015
3-176. Crankshaft
a. Crankshaft Journals.
3-103.
a
Diameter of main bearing journals ...........................................
3.4990 to 3.5000
3A.4965
b
Rod journal diameter................................................................
3.1240 to 3.1253
3.1215
c
Rear main (thrust) width...........................................................
1.9400 to 1.9420
1.9440
b. Crankshaft End Clearance.
3-6
Flywheel end of assembled crankshaft ....................................
0.005 to 0.015
0.0220
c. Crankshaft Bearings.
3-103.
d
Main bearing shell thickness ....................................................
0.1245to 0.12525
0.1230
e. Thrust bearing thickness ..........................................................
0.1510 to 0.1530
0.1490
f
Crankshaft adapter outside diameter .......................................
4.749 to 4.751
4.717
3-177. Connecting Rod
a. Measurements.
3-104.
a
Length center to center ............................................................ 8.1920 to 8.1940
b
Inside diameter of connecting rod bore.................................... 3.3160 to 3.3165
3-104
c
Inside diameter of connecting rod bore (piston pin end-in rod)1.9995 to 2.0005
d
Inside diameter of piston pin bushing ...................................... 1.7510 to 1.7515
1.7525
b. Bearing Shell.
3-104.
e
Shell thickness ......................................................................... 0.0942 to 0.0947
0.0929
Journal clearance..................................................................... 0.0015 to 0.0045
0.0070
c. Bore Misalignment. Check on Fixture (Refer to fig. 3-10).
Bend with bushing installed......................................................
0.0040
Twist with bushing installed......................................................
0.0100
3-178. Piston
a. Measurements.
3-105.
a
Outside diameter of piston skirt (at 70sF.) ............................... 5.4870 to .4880
5.4830
b
Piston pin bore inside diameter................................................ 1.7485 to 1.7489
1.7500
c
Piston pin outside diameter...................................................... 1.7488 to 1.7490
1.7478
Figure 3-102. Cylinder block-points of measurement.
Figure 3-103. Crankshaft and bearings-points of
measurement.
3-65
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