Internal Engine Damage
To determine if internal engine damage is causing no start condition, perform the following steps:
- Install a 3/4 in. breaker bar or ratchet and attempt to bar the engine over by hand.
- Determine severity of internal engine damage.
- If the engine rotates freely, check the electronic control module wiring harness; refer to "17.2 Electronic Control Module Wiring Harness" .
- If the engine binds and will not rotate freely, replace crankshaft bearings, or cylinder liners; refer to "18.4.1 Internal Engine Damage Replacement" .
Internal Engine Damage Replacement
Perform the following for crankshaft bearings, and cylinder liners replacement:
- Replace the crankshaft bearings; refer to "1.9.1 Repair or Replacement of Crankshaft Main Bearings" .
- Replace the cylinder liners; refer to "1.20.2 Cleaning and Removal of Cylinder Liner" .
- Verify replacement of components; refer to "126.96.36.199 Test Engine with Replaced Components" .
Test Engine with Replaced Components
Perform the following to determine if the new components resolved no start condition:
- Attempt to start and run the engine.
- If the engine starts and runs, no further troubleshooting is required. Shut the engine down.
- If the engine fails to start or run, call the Detroit Diesel Technical Service Group.
|Series 50 Service Manual - 6SE50|
|Generated on 10-13-2008|