Citroen Xantia

Since 1993 of release

Repair and car operation

Citroen Xantia
+ Introduction
+ The operation manual
+ Routine maintenance
+ Engine repair
+ Systems of cooling, heating
- The power supply system and release
   + The power supply system - petrol models
   - The power supply system - diesel models
      Filling of the power supply system with fuel and removal from it air stoppers
      Check and adjustment of the maximum turns of the engine
      Removal, installation and adjustment of the thermosensitive gauge of turns of fast idling
      Electromagnetic запорный the valve - the general data, removal and installation
      Removal and installation ТНВД
      Methods of check of installation of the moments of injection of fuel
      Check and adjustment of the moments of injection (ТНВД Lucas)
      Check and adjustment of the moments of injection (ТНВД Bosch)
      Check of serviceability of functioning, removal and installation of atomizers of injection of fuel
      Removal, installation and adjustment of a cable of gas
      Removal and installation of a pedal of gas
      Removal and assemblage installation топливозаборника with the gauge of the expense of fuel
      Removal and installation of a fuel tank
      Removal and installation of the inlet pipeline and final collector
      turbocharger - the general data and safety measures
      Removal and installation турбокомпрессора
      Check of a condition and regenerative repair турбокомпрессора
      Removal and installation of the built in cooler турбокомпрессора
      Removal and installation of an air cleaner and accompanying components
   + Systems of decrease in toxicity and release 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 and adjustment of the moments of injection (ТНВД Lucas)

Some of stoppers of access and installations ТНВД can be sealed up on manufacturer. It is not necessary to break пломбировку on the new car protected by guarantee certificates. Do not undertake attempts of performance of options in the absence of suitable toolkit. Try not to admit at all hit in ТНВД or tubes of atomizers of a dirt. Also attentively familiarise with the preventions resulted in section the Power supply system - diesel models.

For performance of forthcoming checks the special probe and циферблатный a measuring instrument with an assembly arm (Citroёn № 4093-TJ) is required. At absence of near at hand given adaptation it is necessary to charge work to experts of a car repair shop.


1. If check is made at established on engine TNVD, instead of in the course of installation of the last, disconnect a negative wire from the battery and cover with polyethylene the generator. Remove форсуночные tubes (Removal and installation ТНВД, subsection "Removal", item 12 see).
2. Achieve combination of adjusting drillings of blocking of a cranked shaft (Fixing cranked/distributive shaft and ТНВД for the purpose of prevention of casual hit of valves in contact to pistons in the course of performance of procedures of service of the car see). Remove blocking tool and turn a shaft back (counter-clockwise) approximately on a turn quarter.

3. Turn out a stopper of access from directing from above on the pump case, remove a sealing washer. Enter a special probe in directing, having tracked correctness of its landing on a sealing surface.

For reception of authentic results of measurement the probe should nestle on a sealing surface directing, instead of to its top sponges.

4. Fix on directing the pump an assembly arm of a special measuring instrument (Citroёn № 4093-TJ), establish on an arm циферблатный a measuring instrument so that it the end adjoined to draught of an arm. Adjust measuring instrument position so that it плунжер it has appeared in an average part of the course and null the device.

Measuring instrument of the static moment of injection of fuel (1) with the assembly arm (2) and an adjusting rod (3), correct image established on ТНВД

5. Slowly turn a cranked shaft in a direction of normal rotation (clockwise) until again there will be no possibility of introduction of the blocking tool.

6. Having blocked a cranked shaft, consider the measuring instrument indication: it should correspond to the value specified in marks of the pump (with a maximum deviation ± 0.04 mm). Marks are put on the plastic disk fixed in forward part ТНВД, or on шильде, planted on the operating lever.

7. Additional marks are put on pasted on a surface of case TNVD a label (1) and шильду (2), fixed on the operating lever (the gas lever) (system Lucas pump).

8. On each of pump rotors there is a rounded pin () which position is accurately exposed on manufacturer. The moment of the beginning of injection is defined in the size “Х” at the piston of the fourth cylinder being in position ВМТ. This size also is engraved on the labels mentioned above and шильдах.
And — The Adjusting probe
b — the Directing plug
With — a Pin defining installation of the moment of the beginning of injection

9. If the result of measurement testifies to necessity of carrying out of adjustment, ослабьте forward nuts and a back bolt of fastening of the pump and start to turn slowly case TNVD until the measuring instrument will not fix demanded value. Having achieved satisfactory result, tighten fixture the pump with demanded effort. For the purpose of providing of access to nuts of fastening of the pump it is necessary to turn out two screws and to remove a panel cover from a radiator wall.
10. Slowly raise a measuring probe so that it left gearing with the directing plug of a rotor of the pump, then take blocking cranked shaft a core. Turn a cranked shaft one turn with three quarters in a direction of normal rotation.
11. Again lower against the stop a measuring probe, having tracked correctness of its landing on directing the pump (item 3 see). Null a measuring instrument.
12. Slowly turn a shaft in a normal direction until there will be a possibility of introduction of the blocking tool. Check up correctness of adjustment ТНВД.
13. If necessity for updating still takes place, repeat the procedures described in subitem 9-12.
14. Having achieved satisfactory result, remove a measuring instrument with an arm and take a probe.
15. Screw in directing the screw with a sealing washer and strongly tighten it.
16. If check was made during pump installation, operate, as Removal and installation ТНВД is described in section.
17. If the pump is established on the engine, return to the place of a tube of atomizers and tighten накидные their nuts штуцерных connections with demanded effort. Connect a negative wire to the battery and remove air from the power supply system (Filling of the power supply system with fuel and removal from it air stoppers see). Start the engine and make adjustment of turns of idling and turns of prevention spontaneous останова (address to the Head Routine maintenance).

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