Removal and installation of fuel injectors (diesel) (Opel Corsa C)

Caution: Do not allow dirt to enter the fuel system tract!

Caution: Remember that injectors are precision equipment and must be handled with extreme care!

Caution: Before working on the fuel supply system on models equipped with engines with a fuel injection system, "Common Rail", you must wait approximately 1 minute after turning off the ignition - during this time the pressure in the fuel line is automatically reduced!

Z13DT Engine

1. Disconnect the cable from the negative terminal of the battery (see Chapter 5) and remove the engine cover (see Chapter 2).

2. Remove the throttle valve inlet pipe, disconnect the ventilation hose, loosen the union nuts and remove the high-pressure fuel lines, remove the return oil line from the injectors (see illustration 16.2).

3. Disconnect the injector wiring connectors.

4. Loosen the 2 nuts of the injector mounting brackets and remove the injectors from their mounting sockets (see accompanying illustration).





5. Clean the inner surfaces of the mounting seats, replace the injector sealing gaskets.

6. Installation is carried out in reverse order.

Engines Y17DT(L)/Z17DTH

Note: When replacing injectors, it is necessary to first enter an individual QR-CODE into the ECM memory (adjustment data to compensate for different manufacturing tolerances).

7. Remove the camshaft housing cover (see Chapter 2, Section 10).

8. Mark the installation positions of the injectors - they must be in their places during installation.

9. Unscrew the mounting bolts of the mounting brackets (see accompanying illustration) and remove the injectors from the engine. If, when removing the injectors, any of them are pulled out together with the heat-protective sleeve, replace the sealing rings on the sleeve and install it in place using the KM-6357 device.

Note: The heat shield bushings can be removed using the same tool.

10. Replace the rubber and copper injector seals (see accompanying illustration) and seals of other removed components.





11. Installation is performed in the reverse order of removal. Before tightening the injector mounting bolts, align them using a special device (see accompanying illustration).