Email This Page

Section 7.3
Defective Turbocharger

To determine if a defective turbocharger is causing excessive crankcase pressure, perform the following: ‪

NOTICE:

Ensure that the engine is not allowed to operate longer than necessary to perform the crankcase pressure test. A complete loss of crankcase oil will severely damage the engine.‪
  1. Remove the turbocharger drain line connected to the crankcase and place the drain line into a suitable container; refer to appropriate service manual, air intake system chapter.
  2. Perform a crankcase pressure test. Refer to appropriate service manual, preventive maintenance chapter. For crankcase pressure guidelines refer to Service Information Letter 02 TS-20 found on the DDC extranet.
    1. If the engine crankcase pressure is less than 1.25 kPa (5 in. H2 O), replace the turbocharger; refer to "7.3.1 Turbocharger Replacement" . Shut down the engine.
    2. If the engine crankcase pressure indicates no change, check for a worn or damaged valve or cylinder kit; refer to "7.4 Worn or Damaged Valve or Cylinder Kit" . Shut down the engine.

Section 7.3.1
Turbocharger Replacement

Perform the following steps to replace a defective turbocharger:‪

  1. Remove defective turbocharger from the engine; refer to appropriate service manual, air intake system chapter.
  2. Tag removed turbocharger for remanufacture.
  3. Install a replacement turbocharger to the engine; refer to appropriate service manual, air intake system chapter.
  4. Verify replacement of new turbocharger; refer to "7.3.1.1 Test Engine with New Turbocharger" .
Section 7.3.1.1
Test Engine with New Turbocharger

To determine if a new turbocharger resolved the excessive crankcase pressure, perform a crankcase pressure test. Refer to appropriate service manual, preventive maintenance chapter. For crankcase pressure guidelines refer to Service Information Letter 02 TS-20 found on the DDC extranet.‪

  1. If the engine crankcase pressure is 1.25 kPa (5 in. H2 O) or less, no further troubleshooting is required.
  2. If the engine crankcase pressure is greater than 1.25 kPa (5 in. H2 O), check for a worn or damaged valve or cylinder kit; refer to "7.4 Worn or Damaged Valve or Cylinder Kit" .

EPA07 Series 60 DDEC VI Troubleshooting Guide - 6SE567
Generated on 10-13-2008