Detroit Diesel 4000 Series, Service Manual, Page: 554 / 2706

SERIES 4000 12/16V SERVICE MANUAL
[b] If limit value is not exceeded, continue inspection. See Figure 300.
Figure 300 Calculating Axial Twist
For example: If left dial gage (A) reads
−
0.06 mm (0.0023 in.) and right dial gage (A)
reads +0.04 mm (0.0015 in.), the difference equals 0.10 mm (0.0039 in.). Axial twist A =
0.10 mm (0.0039 in.): 2 = 0.05 mm (0.0019 in.).
2. Axial twist A = 0.10 mm (0039 in.) : 2 = 0.05 mm (0.0019 in.). See Figure 300.
[a] If limit value is exceeded, replace connecting rod.
[b] If limit value is not exceeded, continue inspection.
Checking and Assessing Connecting Rod Bearing Shells (Sputtered
Bearing-Lower Half)
Perform the following steps to check and assess connecting rod bearing shells (sputtered
bearing-lower half).
1. Check rod bearing shells for wear.
[a] If worn, replace rod bearing shells.
All information subject to change without notice.
C -408
Copyright © DETROIT DIESEL CORPORATION