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SERIES 50 DEFECTIVE TURBOCHARGER

To determine if a defective turbocharger is causing excessive oil consumption, perform the following: ‪

  1. Remove the turbocharger drain line connected to the crankcase and place the drain line into a suitable container.
  2. Perform a crankcase pressure test; refer to Section .
    1. If the engine crankcase pressure is less than 3 in. H2 O (0.75 kPa), replace the turbocharger; refer to Section .
    2. If the engine crankcase pressure is 3 in. H2 O (0.75 kPa) or less, check for worn or damaged valve and cylinder kit; refer to Section .

Turbocharger Replacement

Perform the following steps to replace a defective turbocharger: ‪

  1. Remove the defective turbocharger from the engine; refer to Section .
  2. Tag removed turbocharger for remanufacture.
  3. Install a new turbocharger to the engine; refer to Section .
  4. Verify replacement of new turbocharger; refer to Section .
Test Engine with New Turbocharger

Perform the following steps to determine if a new turbocharger resolved the excessive crankcase pressure: ‪

  1. Remove the turbocharger drain line connected to the crankcase and place the drain line into a suitable container.
  2. Perform a crankcase pressure test; refer to Section .
    1. If the engine crankcase pressure is greater than 3 in. H2 O (0.75 kPa), check for worn or damaged valve or cylinder kit; refer to Section .
    2. If the engine crankcase pressure is 3 in. H2 O (0.75 kPa) or less, no further troubleshooting is required.