TSB150171-092420

9/29/2020
High Mount / Mid Mount - Angled Turbochargers with Top Mount Turbocharger Actuator - Lubricating Oil Found at Turbocharger Sector Gear and Turbocharger Actuator Gear When Turboc…
Technical Service Bulletin
Technical Service Bulletin: TSB150171
Released Date: 24-Sep-2020
High Mount / Mid Mount - Angled Turbochargers with Top Mount Turbocharger Actuator - Lubricating Oil Found at
Turbocharger Sector Gear and Turbocharger Actuator Gear When Turbocharger Actuator is Removed
High Mount / Mid Mount - Angled Turbochargers with Top Mount
Turbocharger Actuator - Lubricating Oil Found at Turbocharger Sector
Gear and Turbocharger Actuator Gear When Turbocharger Actuator is
Removed
Warranty Statement
The information in this document has no effect on present warranty coverage or repair practices, nor does it authorize TRP or
Campaign actions.
Contents
Product Affected
B6.7 CM2350 B121B
B6.7 CM2350 B135B
B6.7 CM2350 B148B
B6.7 CM2450 B155B
ISB6.7 CM2350 B101
ISL9 CM2350 L101
L9 CM2350 L116B
L9 CM2350 L119B
L9 CM2350 L123B
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L9 CM2450 L126B
X12 CM2350 X119B
X12 CM2450 X137B
X15 CM2350 X114B
X15 CM2350 X116B
X15 CM2350 X123B
X15 CM2350 X129B
X15 CM2450 X124B
X15 CM2450 X134B
Issue
During troubleshooting on engines equipped with high mount turbochargers with top mount turbocharger actuators, lubricating oil
has been found around the turbocharger sector gear and the variable geometry turbocharger actuator gear. This is normal and does
not indicate a malfunction has occurred.
Verification
See Figure 1 and Figure 2 below for examples of acceptable lubricating oil leakage near the turbocharger sector gear and the
variable geometry turbocharger actuator gear.
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High Mount / Mid Mount - Angled Turbochargers with Top Mount Turbocharger Actuator - Lubricating Oil Found at Turbocharger Sector Gear and Turbocharger Actuator Gear When Turboc…
Figure 1, Acceptable Lubricating Oil Leakage Around the Turbocharger Sector Gear
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High Mount / Mid Mount - Angled Turbochargers with Top Mount Turbocharger Actuator - Lubricating Oil Found at Turbocharger Sector Gear and Turbocharger Actuator Gear When Turboc…
Figure 2, Acceptable Lubricating Oil Leakage Around the Variable Geometry Turbocharger Actuator Sector Gear
Resolution
Turbochargers and variable geometry turbocharger actuators should not be replaced if lubricating oil is found as shown in Figure 1
and Figure 2 above. For confirmation of actual lubricating oil leak from the turbocharger or turbocharger actuator:
See the corresponding Service Manual. Reference Procedure 010-033 and 010-134 in Section 10.
Published troubleshooting should be continued for the symptom(s) or fault code(s) present.
Document History
Date
2015-10-26
Details
Module Created
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Date
Details
2016-1-22
Added ISB6.7 CM2350 B101 to Product Affected and updated title.
2016-9-21
Added B6.7 CM2350 B121B
2020-9-24
Added several engines.
Last Modified: 24-Sep-2020
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