Citroen Xantia

1. On models of early years of release pick up the complete set of new top loose leaves, then the complete set of new bottom loose leaves with dark blue marks (see above) if such possibility exists. On later models where the modified radical bearings are already established, check of backlashes in them can be checked up with old loose leaves though it will be impossible to consider result more exhaustively exact (to take better also the new complete set).
2. Wipe backs of the picked up loose leaves and their bed in the block of cylinders and covers of bearings.
3. Enclose loose leaves in the beds, having tracked, that their uvulas have entered into gearing with reciprocal grooves in a block/covers body. At check of old loose leaves track, that they have been established strictly on the former places. Try not to touch working surfaces of loose leaves. Pay attention that in working surfaces of the top loose leaves the flute is provided, - do not mix them with the smooth bottom.
4. Check of size of a working backlash of bearings is made by one of described below methods.
5. The first method, more difficult in view of necessity of application of a micrometer and nutromera/kolumbusa, demands installation of covers of radical bearings (with the enclosed loose leaves) on the block. Tighten bolts of fastening of covers with demanded effort (during check of backlashes of bearings old bolts are used), then nutromerom/kolumbusom measure internal diameter of each of bearings. Now it is necessary to subtract diameters of corresponding radical necks of a cranked shaft from the received results, - the received results will show values of working backlashes in bearings. Compare results of calculations to requirements of Specifications.
6. The second method (more simple and exact) means application of special measuring set Plastigage (Citroёn № OUT 30 4133). The backlash size is defined on degree of flattening of pieces of the soft calibrated wire from a set at сжимании it between loose leaves of covers of radical bearings and shaft necks. Measurement of width of the flattened out pieces of a wire is made on put on packing of a set to a scale.
7. Enclose the top loose leaves of radical bearings in the beds in the block of cylinders, then cautiously lay in the block a cranked shaft. Do not use some any greasing! Shaft necks should be absolutely pure and dry.
8. Cut five pieces of a wire, on length is hardly shorter than radical necks of a cranked shaft and lay them along necks, in parallel an axis of the last.
9. Wipe working surfaces of the bottom loose leaves in covers of bearings and grease with their thin layer silicone компаунда for the purpose of sticking prevention to them of the calibrated wire. Establish covers on the regular places in the engine (be verified with factory marks). Screw old fixing bolts and, watching to breaking integrity of the flattened out pieces of a wire, tighten them with demanded effort (see more low in this section). Do not suppose проворачивания a cranked shaft after laying on it of the calibrated wire.
10. Remove covers, - again try not to destroy the flattened out wire and not to turn a shaft.
11. On a scale put on packing of set Plastigage, define size of a working backlash of bearings on degree of flattening of the calibrated wire, remember that on packing can be put two scales (inch and metric), - do not mix them. Compare results of measurements to requirements of Specifications.
12. If the backlash size essentially differs from demanded, check up, whether the dirt or other extraneous particles has got under a back of the loose leaf. Wipe backs of loose leaves and their bed and repeat check. At repeated negative result check up conformity of loose leaves to diameters of necks of a cranked shaft. If the calibrated wire appears flattened out with one end is inadmissible more than from another, the neck has конусность and is subject проточке.
13. If results of measurements essentially differ from stipulated in Specifications, take advantage of the received data, and also the data about a thickness of loose leaves (see above) for definition of demanded dimensional group of new loose leaves. Remember that working backlashes in bearings are always better for establishing more close to the bottom border of an admissible range adjusted for deterioration.
14. If necessary pick up new loose leaves from other dimensional group and repeat check of workers зажоров in bearings.
15. In summary, having made sure of conformity of sizes of a working backlash of bearings to standard requirements, remove traces of the flattened out wire from shaft necks, cautiously having scratched out their nail or edge of an old credit card.

1. Accurately take a cranked shaft from картера the engine.

2. With the help of pair dabs of dense greasing fix the top half of persistent washers from both parties of bed of the second radical bearing in the block of cylinders, - both washers should be established by flutes маслотоков outside.

3. Enclose loose leaves of radical bearings in the beds in the block of cylinders and covers. At installation of new loose leaves track, that from their surfaces preserving greasing has been completely removed, - wash out loose leaves kerosene, then carefully wipe pure неворсящейся rags. Plentifully grease loose leaves in картере the engine with pure engine oil of a demanded grade.

4. Lay a cranked shaft in the block of cylinders so that necks of the second and third cranks have appeared in positions ВМТ, and the first and the fourth, accordingly, - НМТ. According to instructions Check of a condition of a cranked shaft has undressed, measure its size axial люфта.

5. Grease with impellent oil the bottom loose leaves in covers of bearings. Make sure of correctness of landing of uvulas of loose leaves in reciprocal deepenings in covers.

6. Establish covers of the second and fifth bearings on the regular places (deepenings under uvulas of loose leaves in beds of the block and covers should appear on the one hand. Get fixture (nuts/bolts) and freely tighten it.

7. Grease with hermetic of 1st radical bearing interfaced to a cover a block surface, round apertures under installation of sealing strips.

8. Get uvulas of sealing strips on pins in the basis of a cover of the first bearing and plant strips in the flutes in a cover. Now it is necessary to prepare two thin metal plates (less than 0.25 mm in the thickness) for the purpose of fixing of sealing strips at cover installation.

9. Company Citroyon lets out the special adaptation working like a clamp, however, perfectly for the given purpose will approach also pair of edges old measuring probeа (track that from their edges all agnails and the teases have preliminary been removed, capable to damage rubber of sealants.

10. Grease with impellent oil both parties of metal plates (if use plates) and establish them on sealing strips. Establish a cover of the first radical bearing on the engine and freely screw fixing bolts.

11. By means of flat-nose pliers take plates. Pull plates strictly horizontally.

12. In regular intervals tighten fixture of covers of radical bearings with demanded effort, then a sharp knife cut off acting edges sealing covers of the first bearing so that they acted over an interfaced surface of the block approximately on 1 mm.

13. On models 1580 and 1761 sm ³ screw lateral bolts of fastening of the central radical bearing, - one in a forward part of the block and one in back, - do not forget about sealing washers. Tighten both bolts with demanded effort.
14. Establish a back epiploon of a cranked shaft (the Repair procedures which are not demanding extraction of the engine from the car - petrol engines or the Repair procedures which are not demanding extraction of the engine from the car - diesel engines see).
15. Establish on the places shatunno-piston assemblages (Installation of shatunno-piston groups on the engine and check of working backlashes шатунных bearings see).
16. Establish segment шпонку in a groove of pins of a cranked shaft, then plant on a pin a leading asterisk of the oil pump with the remote plug (if that is provided). Throw an asterisk приводную with a chain.
17. Dry wipe interfaced surfaces of the holder of a forward epiploon of a cranked shaft and the block of cylinders. Measure depth of landing of an epiploon, then take it from the nest by means of a screw-driver with a flat sting.
18. Grease with suitable hermetic an interfaced surface of the holder. Make sure available on the places of directing pins and plant the holder on a pin of a cranked shaft, densely having pressed it to the block. Tighten boats of fastening of the holder with demanded effort.
19. Operating according to the instructions stated in sections Repair procedures, not demanding extraction of the engine from the car - petrol engines or the Repair procedures which are not demanding extraction of the engine from the car - diesel engines, establish a new forward epiploon of a cranked shaft.
20. Make sure of correctness of landing on asterisks приводной chains of the oil pump, then establish the oil pump and the pallet картера (the Repair procedures which are not demanding extraction of the engine from the car - petrol engines or the Repair procedures which are not demanding extraction of the engine from the car - diesel engines see).
21. If removed, establish into place a head of cylinders (the Repair procedures which are not demanding extraction of the engine from the car - petrol engines or the Repair procedures which are not demanding extraction of the engine from the car - diesel engines see).