TM-9-2815-213-34
ENGINE, DIESEL, WITH ACCESSORIES CUMMINS MODEL V8-300 (2815-910-8217)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING DIRECT SUPPORT AND GENERAL SUPPORT REPAIR PARTS LIST AND DEPOT MAINTENANCE ALLOWANCES)
FEBRUARY 1972
TM-9-2815-213-34 - Page 94 of 192
*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
(para.
3-9)
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
(para.
8-19)
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
(para. 3-15)
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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