Citroën Xantia

since 1993 release

Repair and operation of the car



Citroën Xantia
+ Introduction
+ Operation manual
+ Routine maintenance
- Repair of the engine
   + The repair procedures which are not demanding extraction of the engine from the car - petrol engines
   + The repair procedures which are not demanding extraction of the engine from the car - diesel engines
   - Removal and capital repairs of the engine
      Capital repairs of the engine - the general information
      Removal of the power unit - methods and precautionary measures
      Removal, partition and installation of the power unit - model with RKPP
      Removal, partition and installation of the power unit - model with AT
      Order of dismantling of the engine by preparation it to carrying out capital repairs
      Dismantle of a head of cylinders
      Cleaning and check of a condition of a head of cylinders and components of the valvate mechanism
      Assembly of a head of cylinders
      Removal of conrod and piston assemblies
      Removal of a bent shaft
      Cleaning and check of a condition of the block of cylinders/case of the engine
      Check of a condition of conrod and piston assemblies
      Check of a condition of a bent shaft
      Check of a condition of inserts of radical and conrod bearings of a bent shaft
      Engine assembly order after performance of capital repairs
      Installation of piston rings
      Installation of a bent shaft and check of working gaps of radical bearings
      Installation of conrod and piston groups on the engine and check of working gaps of conrod bearings
      Initial start of the engine after completion of its capital repairs
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Coupling
+ Transmission
+ Power shafts
+ Uniform hydraulic system
+ Brake system
+ Running gear and steering
+ Body and finishing of salon
+ Onboard electric equipment
+ Schemes of electric equipment


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Dismantle of a head of cylinders

The new or restored head of cylinders can always be ordered in a workshop of car service or in warehouses service centers of the company manufacturer of the car. In view of need of use during dismantling and check of a condition of a head of some special tools, authors of the present manual consider, than to be got involved what to the amateur mechanic more simply and cheaper will be to get a replaceable head in rather difficult and labor-intensive process of recovery work.


 PERFORMANCE ORDER

1. Remove a head of cylinders from the engine (see. The repair procedures which are not demanding extraction of the engine from the car - the petrol engines or Repair procedures which are not demanding extraction of the engine from the car - diesel engines).
2. If still made it, remove the inlet pipeline and a final collector (see appropriate section of the Head of the Power supply system and release).
3. Take from a head the camshaft and pushers with adjusting washers (see. The repair procedures which are not demanding extraction of the engine from the car - the petrol engines or Repair procedures which are not demanding extraction of the engine from the car - diesel engines).
4. On diesel engines turn out from a glow plug head (see System of preheat - diesel models) and nozzles (see the Power supply system - diesel models).

5. On all engines by means of the special tool squeeze a spring of the first of valves.

6. Take from a flute on its core crackers of the cutting lock of a plate.

7. Carefully release the tool and remove a plate, a spring and its saddle from the valve.





8. Further, by means of flat-nose pliers accurately remove a maslootrazhatelny cap from the directing plug. Working in a similar manner, take components of the remained valves.

9. If after tightening of a spring its plate does not manage to be shifted for the purpose of ensuring access to crackers of the cutting lock, slightly tap the top part of a mandrel of adaptation the hammer, - it has to help release of a plate.
10. Having pushed valves inside also take from via combustion chambers.

11. Having removed valves from the engine, put them together with the components. If degree of wear of valves is not high, and they are subject to further use, take care that at assembly each detail could be established strictly on the former place.

It is the most convenient to put valvate components in separate, appropriately marked (for example: No. 1, inlet, No. 1 final, etc.) plastic bags.


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