Leaking Oil Cooler Core
To determine if a leaking oil cooler core is causing excessive oil consumption, perform the following:
- Check for oil in the engine coolant or radiator.
- Remove the oil cooler core and housing; refer to "3.7.2 Cleaning and Removal of Oil Cooler" .
- Clean both the oil side and water side of oil cooler core; refer to "3.7.2 Cleaning and Removal of Oil Cooler" .
- Perform an oil cooler core pressure test; refer to "188.8.131.52 Inspection of Oil Cooler" .
- Visually check to see if air bubbles are rising to the surface of the water within the container.
Oil Cooler Core Replacement
Perform the following for oil cooler core replacement:
- Replace and install a new oil cooler core; refer to "3.7.3 Installation of Oil Cooler" .
- Verify replacement of oil cooler core; refer to "184.108.40.206 Test Engine with New Oil Cooler Core" .
Test Engine with New Oil Cooler Core
Perform the following steps to determine if the replaced oil cooler core reduced oil consumption:
- Start and run the engine to operating temperature 88°C (190°F).
- Shut down the engine.
- Check the engine coolant for the presence of oil.
- If no oil is present in the coolant, shut down the engine, no further troubleshooting is required.
- If oil is present in the coolant; refer to "220.127.116.11 Test Engine for Reduced Oil Consumption" .
Test Engine for Reduced Oil Consumption
Perform a lube oil consumption report; refer to "29.5 Lube Oil Consumption Report" .
- Review the oil consumption report.
- If the oil consumption report data is within specifications, check for defective air compressor. Refer to "19.4 Defective Air Compressor" .
- If the oil consumption report data is not within specifications, call Detroit Diesel Technical Service Group.
|Series 50 Service Manual - 6SE50|
|Generated on 10-13-2008|