Removal and installation of a cover of a head of the block of cylinders. Audi A4 (from 2001 to 2005 release)
Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
2. Engine
2.1. General information
2.2. Predvaritlny checks
2.3. Mekhanichsky part (petrol engines 2,0l)
2.3.1. Removal of the engine
2.3.2. Removal and installation of a poliklinovy belt
2.3.3. Removal and installation of a belt pulley of the crankshaft
2.3.4. Removal and installation of a gear belt
2.3.5. Removal and installation of a sealing flange and flywheel / the conducted disk
2.3.6. Replacement of manzhetny consolidation of the crankshaft 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 the conducted disk
2.3.10. Removal and installation of a bent shaft
2.3.11. Removal and a press fitting of the needle bearing in the crankshaft
2.3.12. Removal and installation of an asterisk
2.3.13. Dismantling and assembly of pistons and rods
2.3.14. Head of the block of cylinders
2.3.15. Removal and installation of the valve of 1 system of change of phases of gas distribution
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. Check of a compression
2.3.20. Repair of the valvate mechanism
2.3.21. Removal and installation of the phase shifter
2.3.22. Removal and installation of cam-shafts
2.3.23. Replacement of oil scraper caps (at the established head of the block of cylinders)
2.3.24. Check of the directing plugs of valves
2.3.25. Replacement of manzhetny consolidation of a final cam-shaft
2.4. Lubrication system
2.5. Cooling system
2.6. System of injection
2.7. System of production of the fulfilled gases
2.8. Mechanical part (petrol engines 3,0; 3,2 l)
2.9. Mechanical part (petrol engines of 4,2 l)
2.10. Mechanical part (diesel engines of 2,0 l)
2.11. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment
 







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2.3.16. Removal and installation of a cover of a head of the block of cylinders

Removal

Fig. 2.54. Engine casing


Remove a casing of the engine (fig. 2.54).

Fig. 2.142. Fastening of a cover of GBTs


Turn off bolts (fig. 2.142).
Unscrew bolts 1.

Fig. 2.26. Tips of coils of ignition and bolts of fastening of a stage


Disconnect sockets 2 from coils of ignition and release a cable (fig. 2.26).
Remove ignition coils with output cascades a stripper.

Fig. 2.143. Highway of an adsorber and fastening of a valvate box


Disconnect the highway of an absorber from a cover of GBTs 1 (fig. 2.143).
Remove a valvate box from GBTs cover.

Fig. 2.144. Fastening of a tube of ventilation of a case


Turn off a tube of ventilation of a case of the engine from a turbocharger of 1 (fig. 2.144).
Disconnect the highway of an absorber to a turbocharger from GBTs 2 cover.
Turn off screws of fastening of a cover of GBTs, beginning from edges to the center.
Uncover GBTs.

Installation
Installation is carried out in the return sequence.

Fig. 2.145. Sequence of an inhaling of screws of fastening of a cover of GBTs



NOTE
Replace laying of a cover of GBTs at damage.

Sequence of an inhaling of screws of fastening of a cover of GBTs
Check correctness of fastening of the top cover of a gear belt.
Inhaling moments:
– GBTs cover to GBTs – 10 N · m;
– a cover of a gear belt to the block of cylinders * – 10 N · m
* Establish on a carving varnish.


2.3.15. Removal and installation of the valve of 1 system of change of phases of gas distribution

2.3.17. Removal of a head of the block of cylinders