TRUCK SERVICE MANUAL
ENGINE
Table 1-1: Cylinder Block Specifications - Inch [mm] (Reference Fig. 1-0)
Ref.
Worn
New
New
No.
Measurement
Limit
Minimum
Maximum
1
Camshaft Bushing
Inside Diameter (1)
2.0015
1.999
2.0005
[50.838]
[50.775]
[50.813]
Camshaft Bushing Bore
Inside Diameter
2.1306
[64.115]
2
Cylinder Liner Counterbore
Inside Diameter (2)
6.5615
6.5635
[166.662]
[166.713]
Depth
0.412
0.350
0.352
[10.46]
[8.89]
[8.94]
Liner to Block Clearance
Lower Bore (3)
0.002
0.006
[0.05]
[0.15]
Note: Current liners (1972) provide 0.002 to 0.006 inch [ 0.05 to 0.15 mm]
clearance.
Lower Liner Bore
Inside Diameter (4)
6.124
6.126
[155.55]
[155.60]
3
Main Bearing Bore
Inside Diameter (5)
47505
4.7485
4.750
[120.663]
[120.612]
[120.650]
4
Block Ref Fig 1-2
Height from Main Bearing
18.994
19.004
19.006
Centerline
[482.448]
[482.702]
[482.752]
Height from Installed Align-
16.619
16.629
16.631
ment Bar
[422.123]
[422.38]
[422.43]
5
Cylinder Liner
Inside Diameter (6)
5.505
5.4995
5.501
[139.83]
[139.687]
[139.73]
Note: New cylinder liners dimensions at 60 to 70 F [16 to 21 C]; may be
0.0002 to 0.0006 inch [0.005 to 0.015 mm] smaller than indicated due to
lubrite coating.
Protrusion
0.003
0.006
(Installed)
[0.08]
[0.15]
6
Crankshaft
Connecting Rod Journal
3.122
3.1235
3.125
Outside Diameter (7)
[80.30]
[79.337]
[79.38]
Main Bearing Journal
44975
4.4985
4.500
Outside Diameter (8)
[114.237]
[114.262]
[114.30]
Thrust Bearing Surface to
3.006
3.001
3.003
Rear Counterweight
[76.35]
[76.23]
[76.28]
Main and Rod Journals
0.002
Out-of-round T.I.R.**
[0.05]
Main and Rod Journal Taper
0.0005
(Length of Journal)
[0.013]
**T.I.R - Total Indicated Runout
7
Shell Thickness
0.1215
0.123
0.1238
[3.086]
[3.12]
[3.145]
Journal Clearance
0.007
0.0015
0.005
[0.18]
[0.038]
[0.13]
327