Citroen Xantia

Since 1993 of release

Repair and car operation

Citroen Xantia
+ Introduction
+ The operation manual
+ Routine maintenance
- Engine repair
   + 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 engine major repairs
      Engine major repairs - the general information
      Removal of the power unit - methods and safety measures
      Removal, partition and installation of the power unit - models with РКПП
      Removal, partition and installation of the power unit - models with AT
      Order of dismantling of the engine by its preparation for major repairs carrying out
      Dismantle of a head of cylinders
      Cleaning and check of a condition of a head of cylinders and components клапанного the mechanism
      Assemblage of a head of cylinders
      Removal of shatunno-piston assemblages
      Removal of a cranked shaft
      Cleaning and check of a condition of the block of cylinders/kartera of the engine
      Check of a condition of shatunno-piston assemblages
      Check of a condition of a cranked shaft
      Check of a condition of loose leaves radical and шатунных bearings of a cranked shaft
      Assembly order of the engine after major repairs performance
      Installation of piston rings
      Installation of a cranked shaft and check of working backlashes of radical bearings
      Installation of shatunno-piston groups on the engine and check of working backlashes шатунных bearings
      Initial start of the engine after end of its major repairs
+ Systems of cooling, heating
+ The power supply system and release
+ 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

Installation of piston rings


1. Before installation of rings on pistons it is necessary to check up size of backlashes in their locks.
2. Spread out piston assemblages and sets of their rings on a pure working surface.
3. Fill top компрессионное a ring of the corresponding piston in the first cylinder of the engine. The piston bottom push a ring in the bottom part of the cylinder (1520 mm from the bottom cut).

Pay attention that компрессионные rings differ from each other, - the second is easy for distinguishing from top on presence of a step from the bottom party, except that, its external forming surface has appreciable конусность.

4. Take the piston, then probeом лезвийного type measure a backlash - a demanded thickness the edge (Specifications see) should slip hardly between face surfaces of a ring in its lock.

5. Repeat procedure, having translated a ring in the top section of the cylinder (in the end of a piston stroke), compare results of measurements to requirements of Specifications. If the standard data is not resulted, address for consultation to experts of car-care centre.

6. At use of firm new piston rings probability of that backlashes in their locks will are too small, insignificant enough, - remember that смыкание the lock at thermal expansion of a ring is fraught with jamming of the engine and its irreversible exit out of operation. In case of need it is necessary to correct a backlash, by gradual grinding of end faces of a ring about clamped in a vice надфиль - densely put on a ring the lock on надфиль and pull it on itself (at all from itself in order to avoid risk of destruction of a ring at смыкании the lock).
7. If the result of measurement exceeds admissible value (that in case of new rings is rather improbable) before забраковывать a ring, make sure that have got the complete set of rings of your car of a standard size corresponding to the engine.
8. Repeat procedure for the remained rings of the first piston, and also for rings of all other pistons. Do not forget that now each of the picked up rings is strictly adhered to the concrete piston.
9. After end of check and updating of backlashes in locks of all rings it is possible to start their clothing on the pistons.

10. The technology of clothing of rings on the piston is similar used at their removal. In the flute on the piston the spring dilator bottom (маслосъемного) rings first of all refuels, the trace establishes its both lateral sections (by locks under 180 to the dilator lock). We will notice that both a dilator, and lateral sections маслосъемного rings can be established by any party upwards. The second is Afterwards established компрессионное a ring, and necessarily identification label in the form of an inscription of "TORAHS" upwards, and the step party downwards. The last puts on top компрессионное a ring. In summary it is necessary to develop компрессионные rings locks under 120 to the dilator lock маслосъемного rings.
The scheme of installation of piston rings
1 — Maslosemnoe a ring
2 — the Second компрессионное a ring
3 — Top компрессионное a ring

At installation of piston rings always strictly follow instructions of manufacturers applied on the complete set. Do not confuse the second компрессионное a ring with top, - they differ on sections.


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