Attention.
- Leaks in the fuel lines of a pressurized system are dangerous. Fuel can ignite and cause equipment damage, serious injury or even death. In addition, fuel can get on the skin and in the eyes of a person. To prevent this, it is imperative to perform a pressure relief procedure in the power system.
- A person carrying static electricity can cause a fire or explosion that could result in death or serious injury. Before working on the fuel system, you must remove the static charge from yourself by touching the car body.
- If fuel comes into contact with engine parts, it may cause these components to malfunction or cause a fire. Be sure to clean up any spilled fuel with a clean rag.
- Do not allow foreign material to enter the high pressure fuel line. To do this, always tighten the high-pressure fuel line connections to the specified tightening torque.
Removing high pressure fuel lines
1. Disconnect the negative battery terminal.
2. Complete the power system maintenance preparation procedure.
3. Remove the decorative engine cover.
4. Unscrew the union nuts and remove the high pressure fuel lines from the injector side.
1. High pressure fuel lines on the side of the fuel injectors.
2. High pressure fuel line on the fuel pump side.
Note. : replace the part with a new one after each removal.
5. Remove the fuel return line from the fuel pump side.
6. Remove the high pressure fuel line from the fuel pump side.
Installation of high pressure fuel lines
1. Loosen the common rail fuel rail.
2. Fit the union nuts of the new high pressure fuel line on the side of the high pressure fuel pump.
3. Screw on the union nuts of the high pressure fuel lines on the side of the fuel injectors.
4. Fit the fuel return line on the side of the high pressure fuel pump.
5. Tighten the new clamp to 4.2-5.2 Nm.
6. Tighten the high pressure fuel line bracket on the side of the high pressure fuel pump to 8-11 Nm.
7. Tighten the nuts of all high pressure fuel lines on the side of the Common Rail fuel rail to a torque of 32-42 Nm.
8. Tighten the high pressure fuel lines on the side of the fuel pump and fuel injectors to 32-42 Nm.
9. Tighten the fuel rail to 20-26 Nm.
10. Tighten the fuel return line:
- From the side of the high pressure fuel pump with a torque of 18-26 Nm.
- From the side of the lower case with a torque of 20-26 Nm.
11. Perform the bleed procedure for the fuel lines.