MBE 4000 DDEC VI Troubleshooting – Section 10.2 Improper Grade of Lubricating Oil

To determine if an improper grade of lubricating oil is causing excessive blue smoke, perform the following:‪

Verify that the proper grade of lubricating oil is being used in the engine.
See Detroit Diesel publication Lubricating Oil, Fuel, and Filters (7SE270) for oil specifications.
If the oil meets specifications, check for defective turbocharger; refer to "10.3 Defective Turbocharger" .
If the oil did not meet specifications, resolve improper grade of oil; refer to "10.2.1 Improper Grade of Lubricating Oil Resolution" . See Detroit Diesel publication Lubricating Oil, Fuel, and Filters (7SE270) for oil specifications.

Perform the following steps to resolve the improper grade of lubricating oil:‪

Drain the oil pan and filters. Dispose of oil properly.
Refill the engine oil pan with recommended oil. See Detroit Diesel publication Lubricating Oil, Fuel, and Filters (7SE270) for oil specifications.
Verify the oil resolution corrected the excessive blue smoke condition; refer to "10.2.1.1 Test Engine with New Lubricating Oil" .

Perform the following to determine if the new oil level resolved the excessive blue smoke condition:‪

PERSONAL INJURY ‪
To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked.‪

Start and run the engine.
Run the engine at idle under no-load conditions for approximately five minutes, allowing the engine coolant to reach normal operating range, approximately 88-96°C (190-205°F).
Visually inspect exhaust for excessive blue smoke.
1. If the engine smoke emission appears normal, no further troubleshooting is required. Shut down the engine.
2. If the engine exhaust smoke is excessively blue, shut down the engine. Refer to "10.3 Defective Turbocharger" .

EPA07 MBE 4000 DDEC VI Troubleshooting Guide - 6SE568

Generated on 10-13-2008