MBE 4000 DDEC VI Troubleshooting – Section 2.1 Crankcase Pressure Test

Section 2.1
Crankcase Pressure Test

Perform the following steps to check the engine crankcase pressure:‪

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.‪

1. Start the engine.
2. Run the engine and bring the engine coolant temperature to normal operating range, approximately 88-96°C (190-205°F).
3. Return engine to idle and remove the oil dipstick.
4. Attach a manometer calibrated to read in kPa or inches of (H²O), to the oil dipstick opening.
5. Run the vehicle to full load and rated speed.
6. Measure and record crankcase pressure.
7. Shut down the engine.
8. Remove the manometer from the oil dipstick opening and install the dipstick.