Detroit Diesel MBE 4000 Service Manual page 173

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Do not attempt to straighten the connecting rod. This could
result in severe engine damage.
4. Inspect the connecting rod for twisting and dimensional tolerance. see Figure 1-98. If any
value exceeds those listed in Table 1-28, , replace the connecting rod.
Figure 1-98
Description
Length of Connecting Rod
Basic Bore Diameter for Connecting Rod Bearings
Maximum Permissible Out-of-Round in Bearing Bore
Maximum Permissible Out-of-Round in Bushing Bore
Maximum Difference in Axial Parallelism Between
Bearing Bore and Bushing Inner Surface
Width of Connecting Rod (at big end)
Width of Connecting Rod Journal
Distance from Connecting Rod Center Line for
Measuring Parallelism
Table 1-28
[a] On each side of the connecting rod, measure the length of the connecting rod
(Dimension A in see Figure 1-98) : the distance from the center bearing bore (big-end
All information subject to change without notice.
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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NOTICE:
Connecting Rod Measurements
Connecting Rod Dimensional Tolerances
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MBE 4000 SERVICE MANUAL
Dimensions: mm (inch)
255.970-256.030 (10.0775-10.0799)
99.000-99.022 (3.8976-3.8985)
0.01 (0.0004)
0.01 (0.0004)
0.030 (0.0012)
44.308-44.370 (1.744-1.7468)
44.5-44.6 (1.75-1.76)
50 (2)
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