Citroen Xantia

1. Disconnect a negative wire from the battery and uncover heads of cylinders (Removal and installation of a cover of a head of cylinders see).
2. Remove a camshaft cogwheel (Removal, check of a condition and installation натяжителя and cogwheels газораспределительного a belt see).
3. Remove ВВ the ignition coil (the ignition System - petrol models see).
4. Having removed the coil, ослабьте the top bolt of fastening of a casing of the thermostat to the left end face of a head of cylinders. Turn out a bolt and remove it together with a washer - it is used also for fastening of a cover left (№ 1) the camshaft bearing.

5. Cautiously remove маслоподающую a tube from unions on covers of bearings of a camshaft. Pay attention that each of unions is equipped by a sealing ring. Try to remember adjusting position of nozzles on both ends of a tube.

6. Covers of bearings should be consistently numbered (with 1 on 5), in a direction from the party of the engine turned to transmission. In the absence of factory identification labels put them independently by means of a marker. Mark also orientation of each of covers to the engine.

7. In stages (on one turn for the approach) in regular intervals ослабьте nuts of fastening of covers for the purpose of gradual removal developed клапанными effort springs. Further nuts can be turned on and removed definitively.

8. Once again make sure available identification and landing labels on covers, then remove the last from a head of cylinders.

9. Accurately take a camshaft from a head of cylinders and remove an epiploon from its pin.

10. Prepare eight numbered polyethylene packages, then by means of a rubber sucker serially take from a head pushers of valves, at once stacking them in in appropriate way the numbered packages. At assemblage pushers should be established strictly on the former places. Not observance of the given requirement conducts to essential reduction of service life of components клапанного the mechanism. In case of need remove also adjusting washers from end faces of cores of valves and combine in packages with corresponding pushers. Remember that washer often подлипают to pushers, - try not to drop them in the course of extraction of the last.

1. Check up a condition подшипниковых necks and working surfaces of cams of a camshaft. In case of revealing of signs of deterioration, furrows or deep scratches, replace a shaft. Check up also a condition подшипниковых surfaces in beds of covers and heads of cylinders. In case of revealing of serious defects it is necessary to replace a head also. At presence of near at hand suitable equipment degree of deterioration of necks of a shaft can be estimated by direct measurement (in the presence of corresponding standard requirements - Specifications see). Remember that it is considered the first the bearing located from the party turned to transmission of the engine.
2. Check up working surfaces of pushers contacting to cams on presence of scratches and signs of excessive deterioration. Defective pushers replace. In case of revealing of serious damages check up also a condition of working ledges of corresponding cams of a camshaft. In case of need make replacement of defective components.

1. At a corresponding complete set establish on end faces of cores of the valves adjusting washers of pushers. In order to avoid installation infringement клапанных backlashes (Check and adjustment клапанных backlashes see) washers should be established strictly on the former places.
2. Properly grease pushers and their landing nests in a head of cylinders. Accurately fill pushers in the former nests. Track perpendicularity of landing of pushers in a head.
3. Grease necks and cams of a camshaft and get last on the regular place in a head of cylinders. Temporarily plant on a forward pin of a shaft a cogwheel and achieve drilling combination in it with a reciprocal aperture in a head body. Make sure available on the place of the core blocking a cranked shaft (Fixing cranked/distributive shaft for the purpose of prevention casual in the course of performance of procedures of service of the car see).
4. Carefully smooth out and dry wipe interfaced surfaces of covers and places of their landing on a head of cylinders. Grease with hermetic interfaced to a casing of the thermostat a surface of a cover of the first bearing, then establish covers on the regular places according to identification and landing marks.
5. In stages (on one turn for the approach) in regular intervals tighten nuts of fastening of covers so that the last have nestled on a head, then tighten nuts with demanded effort.
6. Check up a condition of sealing rings of unions of landing маслоподающей tubes, in case of need make replacement. Grease rings with pure impellent oil and plant a tube on the regular place. Track, that sealing rings were not displaced in the course of landing of a tube to unions of covers of bearings.
7. Check up a condition of a sealing washer, in case of need make its replacement. Screw and tighten the top bolt of fastening of a casing of the thermostat.
8. Establish to the place of ВВ the ignition coil (the ignition System - petrol models see).
9. Establish a new epiploon of a camshaft (epiploon Replacement (ов) a camshaft see), then establish a cogwheel (Removal, check of a condition and installation натяжителя and cogwheels газораспределительного a belt see).
10. Check up installation клапанных backlashes (Check and adjustment клапанных backlashes see).
11. Establish a cover of a head of cylinders (Removal and installation of a cover of a head of cylinders see) and connect a negative wire to the battery.