Workshop Manual

EPA07/10 DD PLATFORM WORKSHOP MANUAL - ENGINE

11.3 INSPECTION OF DD15 TURBOCHARGER

Check as follows:

1. Remove the exhaust pipe from the turbine outlet and remove the air intake pipe from

the compressor inlet.

2. Visually inspect the turbine and compressor wheels for missing blades or blade damage.

3. Inspect the turbine and compressor wheels for heavy deposits of dirt, coke or carbon.

4. Using a ﬂashlight, check the wheels and housings for signs of rubbing.

5. Rotate the turbine wheel to check for freedom of movement.

6. Replace the turbocharger if there is any visible damage. Refer to section 11.2.

[a] Remove defective turbocharger from the engine.

[b] Tag removed turbocharger for remanufacture.

[c] Install a new turbocharger to the e ngine.

ENGINE EXHAUST

To avoid injury from inhaling engine exh aust, always

operate the engine in a well-ventilated area. Engine

exhaust is toxic.

7. Start the engine.

8. Run the engine speed to full load.

9. Visually inspect the exhaust for excessive smoke.

[a] If the engine exhaust emission appears normal, no further t roubleshooting is required.

Shut down the engine.

[b] If the engine exhaust emission is excessive, shut down the engine. Call Detroit Diesel

Customer Support Center (313-592-5800).

All information subject to change without notice.