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)
2.4. 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)
2.8.1. Engine number
2.8.2. Removal and installation semi wedge a belt
2.8.3. Removal and installation damperа крутильных fluctuations
2.8.4. Removal and installation of a forward sealing flange crankshaftа with an epiploon crankshaftа
2.8.5. Removal and installation of a two-mass flywheel (cars from a manual transmission)
2.8.6. Removal and запрессовка the needle bearing of a two-mass flywheel (cars from a manual transmission)
2.8.7. Removal and installation of a conducted disk (cars with АКПП)
2.8.8. Epiploon replacement crankshaftа from outside a chain drive
2.8.9. Removal and installation of the left and right covers приводных chains
2.8.10. Removal and installation of the bottom cover driving chains
2.8.11. A camshaft drive
2.8.12. Removal of a chain drive from cam-shafts, removal and installation натяжителя chains
2.8.13. Removal and installation of a chain of a drive of the oil pump and балансирного a shaft
2.8.14. Removal and installation балансирного a shaft
2.8.15. Removal and installation of a cranked shaft
2.8.16. Shatunno-piston group
2.8.17. Check of a radial backlash of rods
2.8.18. Compression check
2.8.19. Removal and installation of cam-shafts
2.8.20. Replacement маслосъемных caps
2.8.21. Check of basic elements with hydrojacks
2.8.22. Check of directing plugs of valves
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
 




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2-8-21-proverka-opornykh-ehlementov-s-gidrokompensatorami.html

2.8.21. Check of basic elements with hydrojacks

THE NOTE
Basic elements with hydrojacks are not subject to repair.

Irregular knock of valves at engine start is normal.

Operating procedure
Get the engine and wait, while the radiator fan will join at least once.
Raise turns on 2 mines to 2500 mines-1, if necessary spend a trial trip.

THE NOTE
If irregular knock of valves vanishes, but at trips on short distances again appears, it is necessary to replace oil редукционный the valve.
If noise of basic elements with hydrojacks does not vanish, it is necessary to define the faulty basic.

Remove covers ГБЦ.
Turn crankshaft that the cam of a checked basic element has settled down above.

Cars with a mechanical transmission
With included 4th transfer and the switched off ignition to advance.

Cars from a check point multitronic
Turn a cranked shaft for the central bolt of a pulley semi wedge a belt clockwise.
Define a backlash between a cam and the roller lever.

Fig. 2.391. Backlash definition between a cam and the roller lever


Press on the roller lever a screw-driver downwards (fig. 2.391).
If between a cam-shaft and the roller lever enters probe in the thickness of 0,20 mm:
Replace a basic element.

THE NOTE
After installation of cam-shafts the engine it should is impossible to get Hydrojacks within approximately 30 minutes to be besieged (differently valves will be adjoin to pistons).

After works over клапанным the mechanism scroll the engine by hand not less than two turns to be convinced that any valve does not adjoin to the piston.

The sizes of valves

THE NOTE
To process inlet and final valves it is forbidden. Grinding in is supposed only.


2.8.20. Replacement маслосъемных caps

2.8.22. Check of directing plugs of valves