Citroen Xantia

since 1993 of release

Repair and car operation

Citroen Xantia
+ Introduction
+ Operation manual
+ Routine maintenance
+ engine Repair
+ Systems of cooling, heating
- Power supply system and release
   + the Power supply system - petrol models
   - Power supply system - diesel models
      Power supply system filling with fuel and removal from it air jams
      Check and adjustment of the maximum turns of the engine
      Removal, installation and adjustment of the thermosensitive sensor of turns of fast idling
      The electromagnetic locking valve - general information, removal and installation
      Removal and TNVD installation
      Methods of check of installation of the moments of injection of fuel
      Check and adjustment of the moments of injection (TNVD Lucas)
      Check and adjustment of the moments of injection (TNVD Bosch)
      Check of serviceability of functioning, removal and installation of nozzles of injection of fuel
      Removal, installation and adjustment of a cable of gas
      Removal and installation of a pedal of gas
      Removal and installation of assembly of a toplivozabornik with the fuel consumption sensor
      Removal and installation of a fuel tank
      Removal and installation of the inlet pipeline and final collector
      Turbokompressor - general information and precautionary measures
      Removal and turbokompressor installation
      Check of a condition and regenerative repair of a turbokompressor
      Removal and installation of the built-in cooler of a turbokompressor
      Removal and installation of an air purifier and accompanying components
   + Systems of decrease in toxicity and production of the fulfilled gases
+ engine Electric equipment
+ Coupling
+ Transmission
+ Power shafts
+ Uniform hydraulic system
+ Brake system
+ Running gear and steering
+ Body and salon furnish
+ Onboard electric equipment
+ electric equipment Schemes

Check of serviceability of functioning, removal and installation of nozzles of injection of fuel

At service of nozzles it is necessary to observe extra care. At all do not hold up hands or other open sites of a body under final nozzles of nozzles - the stream of fuel submitted under a high pressure can injure skin. Originators of the real Management urgently recommend to entrust in general performance of any procedures connected with check of being under the pressure of nozzles to specialists of car repair shop. Try not to allow hits in TNVD, nozzles or their tubes of dirt. Do not drop a nozzle and try not to damage needles them snuffled. When manufacturing nozzles special requirements are shown to observance of admissions which should not be broken as a result of the inaccurate address at all. In particular, at all it is not necessary to clamp nozzles in a vice!


Nozzles of injection of fuel tend to gradual destruction of internal components in the course of their operation and should be exposed to regenerative service or replacement approximately through each 100 000 km (60 000 miles) vehicle run. It is necessary to charge performance of diagnostics of a condition, major maintenance and calibration of nozzles to specialists of car-care center. Identification of the defective nozzle allowing a detonation or smoke, can be made without removal from the engine (see further).

Start the engine and leave its working with turns of fast idling. Serially weaken shtutserny connections of each of nozzles, previously having wrapped up them rags. When weakening shtutserny knot of a defective nozzle the detonation will stop.



1. On the models equipped with a turbokompressor, for the purpose of ensuring access remove an air distributor casing. In case of need remove also inlet air line and disconnect a ventilating hose from a jellied mouth of impellent oil. For more details see appropriate sections of the present Chapter.

2. Carefully wipe nozzles and shtutserny knots of connection to them fuel tubes. Details of installation of a nozzle in a head of cylinders are presented on an accompanying illustration.
1 — the Copper sealing washer
2 — the Thermoprotective coupling
3 — the Cap nut of shtutserny connection
4 — a nozzle Support
5 — turnkey Shestigrannik on 27 mm
6 — the Glow plug
7 — Shestigrannik of a glow plug

3. Disconnect from nozzles returnable fuel tubes.

4. Weaken cap nuts of fastening of shtutserny knots of connection of tubes to TNVD. In the course of weakening of nuts hold a reciprocal part of connection from a provorachivaniye by means of the second key. At once закупорьте the open ends of tubes in order to avoid hit in dirt system (use the fingers cut off from an old rubber glove).

5. Unscrew cap nuts and disconnect tubes from nozzles. In case of need forsunochny tubes can be completely removed. Try to remember an exact arrangement of clamps. To Zakuporta open ends of nozzles.

6. By means of a deep face head or a tubular key on 27 mm turn out nozzles from a head of cylinders.

7. Remove from a head copper sealing washers and washers of plamegasitel.

8. Take freely planted thermoprotective couplings.



1. Prepare a set of new sealing washers, washers of plamegasitel and thermoprotective couplings (if the last are damaged).
2. Try not to drop nozzles and not to allow damage of their working needle valves (see the prevention at the beginning of the section).
3. Assembly begin with installation in a head of cylinders of thermoprotective couplings, washers of plamegasitel and copper sealing washers. Track correctness of placement of all components in a head of cylinders.
4. Accurately establish assemblies of nozzles and tighten them with demanded effort.
5. Connect to nozzles fuel tubes and tighten their shtutserny connections. Track correctness of placement of clamps in order to avoid damage of tubes in the course of engine functioning as a result of development of fatigue deformation.
6. Connect returnable tubes.
7. Depending on a complete set, establish into place a casing of the air distributor or the built-in cooler of a turbokompressor (Intercoоler).
8. Start the engine, in case of need make removal of air jams from a power supply system path (see. Power supply system filling with fuel and removal from it air jams).