Contents: Removal 🠛 Installation 🠛
Removal and installation of injectors are shown using the example of cars with a 1.6 liter petrol engine (K7M). For cars with a 2.0 liter petrol engine, the procedure is identical. Differences in removing and installing injectors for cars with a 1.4-/1.6 liter petrol engine (K4J/K4M) are given at the end of this chapter.
Removal
1. Unscrew the mounting bolts and remove the connecting spacer between the upper shock absorber strut supports on the mudguards.
2. Disconnect crankcase ventilation hoses 1 and 2 from the cylinder head cover (see illustration).
5.2 Disconnect crankcase ventilation hoses 1 and 2 from the cylinder head cover
3. Disconnect plug 3 of the fuel injector power supply, as well as plug 4 of the adsorber solenoid valve (see illustration 5.2).
4. Disconnect low pressure hose 5 from the fuel pressure reducing valve (see illustration 5.2).
5. Disconnect the supply 6 and return 7 fuel hoses from the fuel distribution line (see illustration).
5.5 Disconnect the supply 6 and return 7 fuel hoses from the fuel distribution line
6. Squeeze the sides of the hose clamp to lift up the A and B leads (see illustration). If the clamp has a RENAULT hose remover Mot. 1311-06, insert it from the side into the clamp and press.
5.6 Squeeze the sides of the hose clamp to lift up the A and B leads
7. Unscrew the fuel distribution line mounting bolts (see arrows in the illustration).
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5.7 Unscrew the fuel distribution line mounting bolts (see arrows)
8. Remove the fuel distribution line with the connected fuel injectors by pushing it upwards. The fuel injectors are simply inserted into the holes and are easy to remove.
9. Remove the retaining clips 8 and disconnect the injectors from the fuel distribution line (see illustration).
5.9 Remove the retaining clips 8 and disconnect the injectors from the fuel distribution line
Installation
10. Place the injectors in their places and secure them with locking clips.
11. Lubricate the O-rings 1 with Vaseline or SAE 90 gear oil (see illustration).
5.11 Lubricate the O-rings 1 with Vaseline or SAE 90 transmission oil
12. Install the fuel distribution line together with the injectors on the cylinder head, avoiding any distortion.
Attention! When installing the injectors, make sure not to damage the O-rings 1. Replace damaged rings with new ones. When doing so, take into account the position of the O-ring 2 (see illustration 5.11). Before installation, lubricate the sealing rings only with Vaseline or transmission oil.
13. Secure the fuel distribution line with three bolts, tightening them to a torque of 8 Nm.
14. Connect the supply and return fuel hoses to the fuel distribution line. The hoses should be secured with clamps, which will be heard by a characteristic click.
15. Connect crankcase ventilation hoses 1 and 2 (see illustration 5.2).
16. Connect the power plugs of the injectors and the solenoid valve of the adsorber.
17. Connect the low pressure hose to the fuel pressure reducing valve.
18. Place the connecting brace in place between the upper shock absorber strut supports on the mudguards.
Cars with 1.4-/1.6-liter petrol engine (K4J/K4M)
Note! Some engines on these vehicles have a fuel distribution line without a return hose. In this case, the fuel pressure reducing valve is not located on the fuel distribution line, but on the fuel pump in the fuel tank.
19. Remove the fuel distribution pipe cover 1 (see illustration).
5.19 Remove the fuel distribution pipe cover 1
20. Release the fuel supply and return hoses from their fasteners, but do not disconnect them from the fuel distribution line.
Attention! Some engines on these vehicles have a fuel distribution line without a return hose. In this case, the fuel pressure reducing valve 2 is also missing (see illustration 5.19).
21. Remove hose 4 low pressure of pressure reducing valve 2 fuel pressure (see illustration 5.19).
Attention! Vehicles without a return hose also do not have a pressure-reducing valve on the fuel distribution line.
22. Disconnect the power wire ends from the injectors 3 (see illustration 5.19).
23. Unscrew the two bolts 5 and remove the fuel distribution line 1 together with the injectors 3 (see illustration 5.19).
24. Remove the locking clips 1 in the direction of the arrow as shown in the illustration.
5.24 Remove the locking clips 1 in the direction of the arrow
25. Remove injector 2 from the fuel distribution line (see illustration 5.24).
26. Replace the O-ring 3 before installing the injector (see illustration 5.24). Further installation of parts is carried out in the reverse order of removal.
27. Tighten the two bolts 5 securing the fuel distribution line(see illustration 5.19) with a force of 9 Nm.
28. Make sure the fuel hoses and power plugs are securely seated.