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
      Check of compression pressure in cylinders
      Fixing cranked / distributive shaft for the purpose of prevention of service of the car, casual in the course of performing procedures
      Removal and installation of a cover of a head of cylinders
      Removal and installation of a pulley of a bent shaft
      Removal and installation of covers of a gas-distributing belt
      GRM drive belt - the general information, removal and installation
      Removal, check of a state and installation of a natyazhitel and cogwheels of a gas-distributing belt
      Replacement of an epiploon(s) of the camshaft
      Removal, check of a state and installation of the camshaft and pushers of valves
      Check and adjustment of valvate gaps
      Removal and installation of a head of cylinders
      Removal and installation of the pallet of a case of the engine
      Removal, check of a state and installation of the oil pump
      Removal and installation of the oil cooler (model of 2.0 l)
      Replacement of epiploons of a bent shaft
      Removal, check of a state and installation of a flywheel / driving disk
      Check of a state and replacement of support of a suspension bracket of the power unit
   + The repair procedures which are not demanding extraction of the engine from the car - diesel engines
   + Removal and capital repairs of the engine
+ 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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GRM drive belt - the general information, removal and installation

Exact adjustment of a tension of a driving belt can achieve only with use of the special Citroyon SEEM 4122-T tool. The description of a way of approximate adjustment (at the first opportunity the car should be driven away on car repair shop where correctness of installation can be checked with use of the special equipment) is provided in the text of the section. Try to avoid distant trips and the movement with high speeds until the tension of a belt is not adjusted properly.

General information

By means of a gas-distributing belt the drive of the camshaft and the water pump is carried out. Rotation is transmitted through cogwheels from a bent shaft. Remember that the break or slipping of a gas-distributing belt at the working engine leads to serious damages of a head of cylinders as a result of blow of plates of valves about the bottoms of pistons.

Replacement of a gas-distributing belt has to be made strictly according to the schedule of routine maintenance of the car (address the Head Routine maintenance). Extraordinary replacement of a belt has to be made in case of pollution by its oil, and also at emergence of the scraping sounds testifying to uneven wear of a tape or teeths.

At the same time with change of a belt it is necessary to check the water pump for existence of signs of leaks.

Removal

 PERFORMANCE ORDER

1. Disconnect a negative wire from the battery.
2. A car front also establish to Poddomkratta it on props. Remove the right forward wheel.
3. Release clamps, turn out fixing screws and remove a loker.
4. Take off a belt of the drive of auxiliary units (address the Head Routine maintenance). Also to an otboltita also remove a natyazhitel of an auxiliary belt.
5. Otboltite also remove the top cover of a gas-distributing belt (see Removal and installation of covers of a gas-distributing belt).
6. Achieve combination of openings for blocking of cranked and distributive shaft and pass throughout them metal cores of the corresponding diameter (see Fixing cranked/distributive in bulk for the purpose of prevention of service of the car, casual in the course of performing procedures). Do not allow attempts of a provorachivaniye of the engine after introduction of blocking cores at all.
7. Remove a pulley of a bent shaft (see Removal and installation of a pulley of a bent shaft).
8. On models 1.6 and 1.8 of l remove the central cover of a gas-distributing belt. On models of 2.0 l to an otboltita also remove the lower cover (see Removal and installation of covers of a gas-distributing belt).
9. Release a bolt of fastening of a roller of a natyazhitel of a gas-distributing belt. By means of a special key of the square section passed throughout an opening in a nave of a roller develop the last clockwise and record it in this situation, again having tightened a fixing bolt.

10. If the belt is removed not for the purpose of replacement performance, mark with chalk or paint the direction of its rotation (if the similar tag is not put at manufacturer). Take off a belt from cogwheels. Remember that the bent shaft should not be turned at the taken-off gas-distributing belt.

11. Attentively examine a belt on all its length, paying attention to pollution traces oil and signs of uneven wear. Special attention should be paid to a condition of the bases of teeths. The belt which is in a doubtful state should be replaced without any fluctuations. If the engine needs capital repairs, or its run makes more than 60 000 km (36 000 miles) the belt (if it was not established recently) is subject to replacement without fail. Do not forget that the cost of a new belt nothing in comparison with the expenses connected with recovery repair of the engine after an exit of its system as a result of break of a belt in use of the car. At detection of traces of pollution of a belt oil it is necessary to reveal a source of leak and to remove the cause of its development. Carefully wipe the surface of the power unit around installation of a gas-distributing belt, having completely removed oil traces from all accompanying components.

Installation

 PERFORMANCE ORDER

1. Before installation carefully clear cogwheels which the gas-distributing belt is put on. Check freedom of rotation of a roller of a natyazhitel, in case of need replace the last (see Removal, check of a state and installation of a natyazhitel and cogwheels of a gas-distributing belt).
2. Make sure of presence on the place of the core blocking a camshaft cogwheel (see Fixing cranked/distributive in bulk for the purpose of prevention of service of the car, casual in the course of performing procedures). Temporarily establish into place a pulley of a bent shaft and pass a core of suitable diameter throughout its blocking opening to make sure of correctness of provision of a shaft (see in the same place).
3. Remove a pulley of a bent shaft. Get a gas-distributing belt on the regular place, having tracked observance of the direction of its rotation (clockwise at a look from the right board of the car).
4. Try not to overwind excessively at installation a belt. Throw with a belt cogwheels of distributive and cranked shaft. Track that forward "run" of a belt was tense, i.e. all weak point has to gather on the party of a natyazhitel. Now put on a belt a cogwheel of the water pump and a roller of a natyazhitel. Track that teeths of a belt settled down in the central part of the forming surfaces of cogwheels.
5. Temporarily establish into place a pulley of a bent shaft, having moderately tightened a bolt of its fastening. Pass a core of suitable diameter throughout a blocking opening (see Fixing cranked/distributive in bulk for the purpose of prevention of service of the car, casual in the course of performing procedures).

Adjustment of a tension of a belt is made at uncovered. For installation of covers into place it is necessary to remove a pulley of a bent shaft once again.

6. Weaken a bolt of fastening of a roller of a natyazhitel. By means of a special key of square section develop a roller counterclockwise, having completely chosen a belt weak point.
7. In the presence of near at hand special the device for adjustment of a tension of a belt, establish it on forward "run" of the last. The roller of a natyazhitel should be adjusted so that the initial tension of a belt made 16 ± 2 blocks of device for models of 2.0 l and 30 ± 2 blocks for l models 1.6 and 1.8.
8. Take blocking cores and turn a bent shaft on two whole revolutions in the direction clockwise (looking from the right board of the car). Again achieve combination of blocking openings (see Fixing cranked/distributive in bulk for the purpose of prevention of service of the car, casual in the course of performing procedures). Do not turn a bent shaft counterclockwise at all. Drillings in a cogwheel distributive and a pulley cranked shaft have to be combined with reciprocal openings in a head and the block of cylinders so that blocking cores of the corresponding diameter were freely passed throughout the last. Performance of the last condition gives a guarantee of correctness of installation of phases of gas distribution. Do not forget to take blocking cores.
9. If it is not possible to achieve the required combination of openings, repeat the procedure of installation of a belt.
10. If adjustment of a tension of a belt has to be made without special adaptation, try to achieve that at the moderate effort enclosed big and index by fingers on the site in the middle of forward "run", the tape of a belt was overwound on 90 °. Violation of this condition is fraught with unexpected break of a belt (too hard tension), or its slipping on cogwheels. Both can lead to serious internal damages of the engine as a result of blow of valves about the bottoms of pistons. In case of need correct as appropriate the provision of a roller of a natyazhitel. In conclusion tighten a bolt of fastening of a roller with the required effort.
11. If made adjustment of a tension of a belt with use of special adaptation, turn a bent shaft on two whole revolutions in the direction of normal rotation, then achieve combination of blocking openings of the camshaft and pass throughout them a core of the corresponding diameter. Make sure that the belt tension on forward "run" makes 44 ± 2 blocks, otherwise repeat the procedure of installation.
12. Having achieved the correct tension of a belt, take a blocking finger from a camshaft cogwheel, then remove a pulley of a bent shaft and establish into place a forward cover (and).
13. Finalize into place a pulley of a bent shaft for what grease a carving of its fixing bolt with the fixing sealant like Loctite, then screw a bolt (do not forget about a washer) and tighten it with the required effort (see Removal and installation of a pulley of a bent shaft).
14. Establish into place a natyazhitel of an auxiliary driving belt, then establish actually a belt and adjust effort of its tension (address the Head Routine maintenance).
15. Establish into place a loker, then the right forward wheel. Lower the car on the earth and tighten bolts of fastening of a wheel with the required effort.
16. Connect a negative wire to the battery.


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