- Removal and installation. If a new high-pressure fuel pump is installed, all parts of the injection device should be checked.
- Drain the fluid from the cooling system.
- Disconnect the throttle cable from the high pressure fuel pump.
- Disconnect the following hoses: Two bypass hoses and, if equipped, the air conditioner hose.
- Unscrew the injection inlet pipe. It is secured with a ring lock.
- After releasing the clamp, disconnect the fuel outlet hose.
- Loosen the bolt and nut securing the heater pipe.
- Disconnect the 4 injection pipes. To do this, unscrew the nuts that secure the 4 pipes to the intake manifold, release the clamping clamps and unscrew the union nuts. For this, it is better to use a spanner with a slot through which the pipe can pass. Do not tear the edges of the union nut heads.
- Remove the timing belt as described in chapter 16.1.1. At the same time, the drive gear of the high-pressure fuel pump is also removed.
- Check the position of the mark in the place shown in Figure 321 (on the water pump). If the marks are not visible, rotate the pump and mounting points as indicated. Adjusting the high-pressure fuel pump is a complex job that is best done in a workshop, but the guarantee that the engine will start easily after installation is to install it according to the marks. Adjust only when the engine does not work as it should.
Fig. 321. Installed high-pressure fuel pump. Before crushing, mark the pump in the indicated place.
- Unscrew the bolts and two nuts, remove the rear pump console (4 bolts) and pull out the pump.
The high-pressure fuel pump is installed in the following sequence:
- Place the pump in the correct position and turn it so that the marks on the pump and on the water pump are aligned as shown in Figure 321. Finger tighten both nuts and the bolt. The final tightening is done after installing the rear console. Install the console and tighten the 4 bolts to 20 Nm. The bolts and nuts on the other side can then be tightened to the same torque.
- Install the high pressure fuel pump drive gear and timing belt as described in chapter 17.1.1, with installation of the timing belt cover.
- Connect the inlet pipe to the high-pressure fuel pump. Install new sealing washers and secure the pipe with a hollow bolt. Put on and secure the fuel hose with a clamp.
- Fasten the fuel outlet pipe in the same way, but tighten the union nut here. Put on and fasten the hose with a clamp.
- Screw on 4 injection tubes (see next chapter).
- Connect the throttle cable. Check that the fuel pump is set to the full throttle position and returns back to the idle position.
- The remaining work is carried out in reverse order.