Workshop Manual

EPA07/10 DD PLATFORM WORKSHOP MANUAL - ENGINE

14.4 REMOVAL OF THE DD15 CYLINDER HEAD

Because optional and accessory equipment varies with the engine application, this procedure

covers only the basic engine. If the engine is equipped with accessories that affect cylinder head

removal, note the mounting details of each to assure correct installation at reassembly.

Remove the cylinder head as follows:

NOTICE:

If the cylinder head is to be replaced, the new head must be

thoroughly cleaned before installation to remove all rust and

preventive co mpound, e specially from the fu e l and oil galleries.

Thiscanbedonebyimmersioninabathoffueloilormineral

spirits-based solvent and scrubbing out all openings with a soft

bristle brush. When clean, blow the head dry with compressed

air.

1. Steam clean the engine.

2. Disconnect the batteries. Refer to OEM procedure.

3. Drain the fuel system. Refer to section .

4. Drain the oil. Refer to OEM procedure.

5. Drain the coolant. Refer to OEM procedure.

6. Remove the turbocharger inlet pipe. Refer to OEM procedure.

7. Remove the rocker cover. Refer to section 1.2.

8. Disconnect the following electrical harness connections:

[a] Coolant O utlet Temperature sensor harness from the water manifold

[b] Delta-p sensor

[c] Intake Manifold Air Temperature sensor

[d] Throttle Valve

[e] Intake Air Temperature sensor

9. Remove fuel injector feed lines. Refer to section .

10. Remove high pressure fuel lines from fuel rail to high pressure fuel pump. Refer to s ection

11. Remove ampliﬁer return line, needle return line and pressure limiting valve (PLV) lines.

Refertosection.

12. Disconnect fuel injector harness from the fuel injectors and engine brake solenoids.

[a] For Euro 6 DD Platform engines, remove One Piece Fuel Injector Wiring Harness.

Refertosection.

All information subject to change without notice.