Audi A4 with 2001- 2005 of release.
1. Operation and car maintenance service
2. The engine
2.1. The general data
2.2. Predvaritlnye checks
2.3. A Mehanichsky part (petrol engines 2,0л)
2.3.1. Engine removal
2.3.2. Removal and installation semi wedge a belt
2.3.3. Removal and installation of a belt pulley crankshaftа
2.3.4. Removal and installation of a gear belt
2.3.5. Removal and installation of a sealing flange and a flywheel / a conducted disk
2.3.6. Replacement манжетного consolidations crankshaftа on the party of a belt pulley
2.3.7. Removal and installation of a forward sealing flange
2.3.8. Removal and installation of a two-mass flywheel
2.3.9. Removal and installation of a conducted disk
2.3.10. Removal and installation of a cranked shaft
2.3.11. Removal and запрессовка the needle bearing in crankshaft
2.3.12. Removal and asterisk installation
2.3.13. Dismantling and assemblage of pistons and rods
2.3.14. A head of the block of cylinders
2.3.15. Removal and installation of the valve of 1 system of change of phases timing
2.3.16. Removal and installation of a cover of a head of the block of cylinders
2.3.17. Removal of a head of the block of cylinders
2.3.18. Installation of a head of the block of cylinders
2.3.19. Compression check
2.3.20. Repair клапанного the mechanism
2.3.21. Removal and phase shifter installation
2.3.22. Removal and installation of cam-shafts
2.3.23. Replacement маслосъемных caps (at the established head of the block of cylinders)
2.3.24. Check of directing plugs of valves
2.3.25. Replacement манжетного consolidations of a final cam-shaft
2.4. Greasing system
2.5. Cooling system
2.6. Injection system
2.7. System of release of the fulfilled gases
2.8. A mechanical part (petrol engines 3,0; 3,2)
2.9. A mechanical part (petrol engines 4,2)
2.10. A mechanical part (diesel engines 2,0)
2.11. Tables
3. Transmission
4. A running gear
5. The steering mechanism
6. Brake system
7. An onboard electric equipment
8. A body
9. Electric equipment schemes
 







2-3-22-snyatie-i-ustanovka-raspredvalov.html

2.3.22. Removal and installation of cam-shafts

THE NOTE
It is forbidden to process the bottom landing surface of a frame of cam-shafts and the top head of the block of cylinders.

Removal
Cam-shaft bearings are built in a head of the block of cylinders and a frame of cam-shafts. Before removal of a frame of cam-shafts it is necessary to weaken a gear belt.
After untwisting of a frame of cam-shafts necessarily replace манжетное consolidation of a cam-shaft and a cover.
Uncover ГБЦ.
Remove the phase shifter.
Remove a gear belt.

Fig. 2.164. Untwisting of a gear wheel of a cam-shaft


Turn off a cam-shaft gear wheel, for this purpose use a countersupport (fig. 2.164).

Fig. 2.147. Removal of a belt pulley of a cam-shaft двузахватным a stripper


Remove a gear wheel of a cam-shaft a stripper (fig. 2.147).
Turn off a back part of a protective casing of a gear belt from ГБЦ.
Unscrew screws of a frame of cam-shafts in regular intervals from edges to the centre and remove a frame.
Cautiously take cam-shafts upwards and lay them on a pure lining.
Remove old hermetic from a flute of a frame of cam-shafts, and also from condensing surfaces.

Fig. 2.165. Old hermetic on interfaced surface ГБЦ


Do not suppose hit of a dirt and the hermetic rests in ГБЦ (fig. 2.165).

Installation
Check up, that all коромысла have been correctly established on shafts of cores of valves.

THE NOTE
On condensing surfaces there should not be an oil and greasings.
Pistons should not be in ВМТ.

Grease working surfaces of cam-shafts with engine oil.
Accurately enclose cam-shafts in bearings of cam-shafts of a head of the block of cylinders. Cams And 4th cylinder should be turned to each other (fig. 2.153).

Fig. 2.153. Combination of dredging


Put uniform, slightly convex platen of hermetic in a pure flute of a frame of cam-shafts.

THE NOTE
Not to put hermetic too thick layer.
To establish and fasten a frame of cam-shafts follows without breaks as hermetic starts to harden right after contacts of landing surfaces.
Observe hermetic working life.



Fig. 2.166. Installation of a frame of a cam-shaft


Put a frame of cam-shafts so that not to touch the valve рециркуляции ОГ (fig. 2.166).
Replace bolts of fastening of a frame of cam-shafts.
In some stages slightly twirl screws, beginning from the centre to edges.
Tighten bolts definitively in the specified sequence.

Fig. 2.167. Sequence of a tightening of bolts of fastening of a frame of cam-shafts


Запрессуйте a cover оправкой on depth of 1-2 mm (fig. 2.167).
Establish a cam-shaft epiploon.
Establish a back part of a protective casing of a gear belt.
Insert призматическую шпонку into a cam-shaft.
Establish a cam-shaft gear wheel. For a screw twisting keep a gear wheel of a cam-shaft by means of a support (fig. 2.164).

THE NOTE
At прокручивании a cam-shaft any of pistons should not be in ВМТ. There is a danger of damage of valves/pistons.

Be convinced of correctness of installation призматической шпонки.
Establish a gear belt.
Establish the phase shifter.
Establish a cover of a head of the block of cylinders.
Establish a framework of a radiator with hinged components.

Fig. 2.96. Fastening of the rubber buffer


Lower an emphasis of a support against проворачивания at the expense of a body weight on the rubber buffer and tighten nuts (fig. 2.96).
Establish a casing of a forward bumper.
Check up adjustment of headlights.
The further installation and assemblage is carried out in return to sequence removal.


2.3.21. Removal and phase shifter installation

2.3.23. Replacement маслосъемных caps (at the established head of the block of cylinders)