To determine if a defective turbocharger is causing excessive exhaust smoke, perform the following:
- Remove the turbocharger outlet line connected to the crankcase and place the drain line into a suitable container; refer to "6.5.2 Cleaning and Removal of Turbocharger" .
- Perform a crankcase pressure test, refer to "29.3
Crankcase Pressure Test (Governed Speed No Load)" .
- If the engine crankcase pressure is greater than 3 in. H2 O, replace the turbocharger; refer to "21.6.1 Turbocharger Replacement" .
- If the engine crankcase pressure is 3 in. H2 O, call the Detroit Diesel Technical Service Group.
Perform the following steps to replace a defective turbocharger:
- Remove defective turbocharger from the engine; refer to "6.5.2 Cleaning and Removal of Turbocharger" .
- Tag removed turbocharger for remanufacture.
- Install a new turbocharger to the engine; refer to "6.5.7 Installation of Turbocharger" .
- Verify replacement of new turbocharger; refer to "18.104.22.168 Test Engine with Replaced Turbocharger" .
Test Engine with Replaced Turbocharger
Perform the following steps to determine if a replaced turbocharger resolved the excessive exhaust smoke condition:
- Start the engine.
- Run the engine speed to full load.
- Visually inspect the exhaust for excessive smoke.
- If the engine exhaust emission appears normal, no further troubleshooting is required. Shut the engine down.
- If the engine exhaust emission is excessive; call the Detroit Diesel Technical Service Group. Shut the engine down.
|Series 50 Service Manual - 6SE50|
|Generated on 10-13-2008|