ISBe/ISB Series Engines – Turbocharger Leaks Engine Oil or Fuel

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

Review the engine operating instructions in Section 1
.

Turbocharger drain line is restricted

Remove the turbocharger drain line, and check for restriction. Clean or replace the drain line. Refer to a Cummins Authorized Repair Facility.

Turbocharger oil supply line loose or leaking

Check and tighten oil supply line fitting(s), if necessary. Refer to a Cummins Authorized Repair Facility.

Lubricating oil or fuel is entering the turbocharger

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