M11 Industrial Operation and Maintenance – Turbocharger Leaks Engine Oil or Fuel

Symptom Tree  

Engine is operating for extended periods under light- or no-load conditions (slobbering)

Review the engine operating instructions in Section 1, Procedure 101-015 (Operating the Engine).


Lubricating oil or fuel is entering the turbocharger

Remove the intake and exhaust piping, and check for oil or fuel.


Turbocharger oil drain line is restricted

Remove the turbocharger oil drain line and check for restriction. Clean or replace the oil drain line. Refer to Procedure 010-033 (Turbocharger) in Section A.

Contact a Cummins Authorized Repair Facility

Last Modified:  23-Nov-2004