Citroen Xantia

since 1993 of release

Repair and car operation

��

Removal and installation of cogwheels of a belt of a drive of GRM

Camshaft cogwheel

Removal

PERFORMANCE ORDER

1. Remove covers of a gas-distributing belt (see. Removal and installation of covers of a gas-distributing belt).
2. Now it is necessary to weaken a bolt of fastening of a cogwheel (finally to turn out a bolt at this stage it is not necessary) for what it is necessary to take measures of a provorachivaniye of the last. Blocking can be made in two ways: a) Make of two metal strips and three bolts the bifurcate blokirator similar represented on illustration, tighten it to a cogwheel and keep the last from a provorachivaniye for the acting end of a long strip;
b) Uncover heads of cylinders (see. Removal and installation of a cover of a head of cylinders) also block a camshaft from a provorachivaniye by means of the rozhkovy key dressed on special лыски between the third and fourth cams of a drive of valves.
3. Achieve combination of blocking drillings/openings (see. Fixing cranked / distributive shaft and TNVD 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) also fix camshaft and TNVD cogwheels, and also a flywheel. At all do not make attempts of a provorachivaniye of the engine after introduction of blocking cores. 4. Weaken an axial nut and an adjusting bolt of a natyazhitel and develop an arm of the last counter-clockwise, having weakened thereby a tension of a gas-distributing belt. Having tightened an adjusting bolt, fix a natyazhitel in new situation. In case of need use for deployment of a natyazhitel by a 10-millimetric drive which can be inserted into a special square opening in an arm. 5. Finally turn out a bolt of fastening of a cogwheel of a camshaft and take it together with a washer. 6. Turn out from a cogwheel blocking bolt.
7. Accurately remove a cogwheel from a shaft pin. Take from a pin a segment shponka if the last is planted in the groove freely. Clean a shponka in a reliable place. Attentively examine an epiploon, checking it on existence of signs of development of leakages of oil, in case of need make replacement (see. Replacement of epiploons).

Installation

PERFORMANCE ORDER

1. If removed, fill a segment shponka in a groove in a camshaft pin, then plant on a pin a cogwheel. As the pin has a konusnost, the cogwheel can is planted on a shaft by the only way (the central stupichny ledge outside).
2. Screw a fixing bolt (do not forget about a washer) and tighten it with demanded effort, holding a shaft/wheel from a provorachivaniye one of the ways described above in the subsection "Removal", item 2.
3. If removed, establish into place a cover of a head of cylinders (see. Removal and installation of a cover of a head of cylinders).
4. Achieve combination of blocking drilling in a camshaft cogwheel with a reciprocal opening in a forward plate of the engine. Pass in openings a 8-millimetric blocking bolt.
5. Throw with a gas-distributing belt TNVD and camshaft cogwheels, then make a tape tension (see. A belt of a drive of GRM - the general information, removal, check of a condition and installation).
6. Establish to the place of a cover of a gas-distributing belt (see. Removal and installation of covers of a gas-distributing belt).

Cogwheel of a cranked shaft

Removal

PERFORMANCE ORDER

1. Remove a pulley of a cranked shaft (see. Removal and installation of a pulley of a cranked shaft). 2. Execute the procedures described above in subsection "A camshaft cogwheel - Removal", subitem 1, 3 and 4.
3. Throw off a gas-distributing belt from a cogwheel of a cranked shaft, then remove a wheel from a shaft pin.
4. Take from a pin a segment shponka if it is planted in the groove freely. Clean a shponka in a reliable place.
5. Check a forward epiploon of a cranked shaft on existence of signs of leakages of oil, in case of need make replacement (see. Replacement of epiploons).

Installation

PERFORMANCE ORDER

1. If removed, establish into place a segment shponka, then put on a cogwheel a pin of a cranked shaft (a flange to the block of cylinders).
2. Throw with a gas-distributing belt a cogwheel of a cranked shaft and make its tension (see. A belt of a drive of GRM - the general information, removal, check of a condition and installation).
3. Establish into place a pulley of a cranked shaft (see. Removal and installation of a pulley of a cranked shaft).

TNVD cogwheel

Removal

PERFORMANCE ORDER

1. Execute the procedures described above in subsection "A camshaft cogwheel - Removal", subitem 1, 3 and 4. 2. Mark the provision of a gas-distributing belt concerning TNVD cogwheel. 3. Take a 8-millimetric bolt blocking a cogwheel of TNVD in situation VMT (see. Fixing cranked / distributive shaft and TNVD 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).
4. Not some models the cogwheel is equipped with the built-in stripper in the form of pribolchenny to its end face of a metal level. On a level not dropping out nut (a nut of fastening of a cogwheel) which wells up on a pin of a shaft of the fuel pump (TNVD) is fixed. If the built-in stripper is not provided, it can be made of a suitable metal level of small length and pair of bolts М7 rolled in special openings, provided in a cogwheel (see an illustration).
5. Fix a cogwheel against a provorachivaniye by means of a self-made bifurcate blokirator.
6. On the models equipped with the built-in stripper of the cogwheel start to turn on a fixing nut until the wheel will not descend from a konusny pin of a shaft of TNVD. Having removed a wheel, check landing density in the groove of a segment shponka, in case of need take it and clean in a reliable place. At desire the built-in stripper can be removed from a cogwheel by a way of a reversing of two fixing screws (do not forget to remove a washer).
7. If built-in stripper on a cogwheel it is not provided, partially unscrew a nut of fastening of a wheel, then establish on the last a self-made stripper and tighten two its bolts, resting a level against a fixing nut. Continue to tighten bolts until the wheel will not descend from a konusny pin of a shaft. Remove a wheel, then check durability of landing in the groove of a segment shponka, in case of need take it and clean in a reliable place. Remove a stripper.

Installation

PERFORMANCE ORDER

1. If removed, plant in the groove on a shaft pin a segment shponka.
2. At the corresponding complete set if removed, establish on a cogwheel the built-in stripper, having tightened screws of its fastening with demanded effort (do not forget about washers).
3. Put on a cogwheel a pin of a shaft and tighten a nut of its fastening with demanded effort (take care of shaft fixing from a provorachivaniye - see above in subsection "TNVD cogwheel - Removal", item 5).
4. Make sure that 8-millimetric blocking bolts are inserted into drillings in a cogwheel of a camshaft and a flywheel (see. Fixing cranked / distributive shaft and TNVD 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).
5. Throw with a gas-distributing belt TNVD cogwheel (track correctness of combination of the landing labels put at dismantle).
6. Make a belt tension (see. A belt of a drive of GRM - the general information, removal, check of a condition and installation).
7. Establish the top covers of a belt of a drive of GRM (see. Removal and installation of covers of a gas-distributing belt).

Cogwheel of the water pump

The wheel represents uniform assembly with the pump and to removal is not subject.