Series 60 DDEC VI Troubleshooting – Section 5.4 Internal Engine Damage

Section 5.4
Internal Engine Damage

To determine if internal engine damage is causing no start condition, perform the following steps: ‪

1. Install a 3/4 in. breaker bar or ratchet and attempt to bar the engine over by hand.
2. Determine severity of internal engine damage.
   1. If the engine rotates freely, replace the starter. Refer to appropriate service manual, engine chapter.
   2. If the engine binds and will not rotate freely, refer to "5.4.1 Internal Engine Damage Replacement" .

Section 5.4.1
Internal Engine Damage Replacement

Perform the following steps for crankshaft bearings, and cylinder liners replacement:‪

1. Replace the crankshaft bearings; refer to appropriate service manual, engine chapter.
2. Replace the cylinder liners; refer to appropriate service manual, engine chapter.
3. Verify replacement of components; refer to "5.4.1.1 Test Engine with Replaced Components" .

Section 5.4.1.1
Test Engine with Replaced Components

To determine if the new components resolved no start condition, attempt to start and run the engine.‪

1. If the engine starts and runs, no further troubleshooting is required. Shut down the engine.
2. If the engine fails to start, call the Detroit Diesel Customer Support Center at 313–592–5800.