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 95 of 192
*TM 9-2815-213-34
Figure 3-104.
Connecting rod-points of measurement
Figure 3-105.
Piston-points of measurement.
Fig.
Ref.
Point of Measurement
New Dimensions
Wear Limits
No.
Letter
(inches)
(inches)
b.
Ring
3-105
d
Piston ring-to-groove clearance (use gage 1600043)
new ring flush with piston wall .
.........................................
.
0.002
0.006
e
Piston ring gap clearance (In new liners).
................................
Top compression ring.
Part Number (15434-129260) .
..................
.
0.017 to 0.027
Level compression ring.
Part Number (15434168680) .
.................
.
0.013 to 0.023
Oil ring.
Part Number (15434-172550).
..........................................
.
0.015 to 0.027
3-179.
Cylinder Sleeve
(para.
3-2.b.)
3-106.
a
Cylinder sleeve inside diameter .
.............................................
.
5.4995 to 5010
5.5050
a
Cylinder sleeve out-of-round:
Packing ring area .
.............................................................
0.0015
Above piston pin area.
.......................................................
0.003
b
Cylinder sleeve outside diameter:
Packing ring hands.
..........................................................
.
5.9930 to 5.9970
5.9900
Top flange (press fit area) .
...............................................
.
6.5015 to 6.5035
6.5015
c
Cylinder sleeve flange:
Thickness .
........................................................................
.
0.3550 to 0.3560
0.355
Protrusion above block.
....................................................
.
0.0040 to 0.0060
0.0040
Cylinder sleeve to block packing ring bore clearance.
............
.
0.0020 to 0.0080
3-180.
Camshaft and Bearings
(para 832)
a.
Camshaft.
3-107.
a
Outside diameter of journals .
...................................................
2.4960 to 2.4970
2.4940
b
Injector(s) lobe total lift.
............................................................
0.1680to0.1720
0.1670
b.
Camshaft Bearings.
3-107.
c
Inside diameter of camshaft bushing .
......................................
2.4990 to 2.5005
2.5020
d
End play of camshaft.
...............................................................
0.0070 to 0.0110
0.0150
e
Engine camshaft thrust plate (thickness).
................................
0.124 to 0.126
*
* Replace thrust plate when end play exceeds 0.0150.
3-181.
Gear Train
a Crankshaft Gear (para.
3-9).
3-108.
a
Inside diameter of gear .
...........................................................
4.040 to 4.041
*
b
Outside diameter of crankshaft.
...............................................
4.045 to 4.046
*
ab
Gear-to-crankshaft clearance .
.................................................
PRESS FIT
3-66
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