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

Removal of conrod and piston assemblies

PERFORMANCE ORDER

1. Remove a head of cylinders, the pallet of a case and the oil pump (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. With noticeable step wear in the top part of cylinders it should be removed by means of a special vertical drill in order to avoid damage of pistons in the course of pushing out them from the engine. Considerable height of a step testifies to wear of cylinders.
3. By means of a center punch or paint mark rods and covers of their lower heads according to their belonging to the cylinders and to each other. Let's remind that the cylinder, next to the GRM drive, is considered the first.
4. Having turned a bent shaft, bring pistons of the first and fourth cylinders into provisions of NMT.
5. Give nuts of fastening of a cover of the lower head of a rod of the piston of the first cylinder. Uncover and take from it the lower insert of the conrod bearing. If bearings are in good repair, and will be used further, enclose an insert back in a cover and fix it by an adhesive tape.
6. In order to avoid injury of necks of a bent shaft and a mirror of the cylinder pull couple of pieces of the rubber or plastic hoses suitable on diameter on hairpins of fastening of a cover of the bearing.
7. Having rested the wooden handle of the hammer against the top insert of the bearing of the lower head, push out conrod and piston assembly at the top of the cylinder outside from the engine. At emergence of resistance immediately stop extraction of assembly and check completeness of removal of step wear in the top part of the cylinder. Fix a bearing insert in a rod head by means of an adhesive tape. 8. Establish a cover back on a rod, and freely screw fixing nuts. 9. Working in a similar manner, remove conrod and piston assembly of the fourth cylinder. 10. Having turned a bent shaft on 180 °, bring pistons of the second and third cylinders into provisions of NMT and repeat the described procedures.

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