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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2-8-18-proverka-kompressii.html

2.8.18. Compression check

Operating procedure
Temperature of engine oil of minute 30 °C.
Pressure of the accumulator a minimum 12,5 Century
Switch off ignition.
Remove back facing of the engine.
Remove forward facing of the engine.
Turn off a broad tank of system of cooling.
Disconnect штекерный a socket of the switch of a signalling device of low level of a cooling liquid in the bottom of a broad tank and will put a broad tank with the connected hoses aside.
Disconnect редукционный the valve 1 from an air hose.

Fig. 2.329. The reduktsionnyj valve


Remove an air hose, for this purpose loosen the a collar 2 and unblock clamps (fig. 2.329).
Unscrew bolts.

Fig. 2.2. An air line


Remove air lines 1 and 2 (fig. 2.2).

Fig. 2.326. System components timing: 1 – the gauge of the Hall 2; 2 – the valve of 2 adjustments of phases timing; 3 – the valve of 2 systems of regulation of phases timing, release; 4 – the gauge of the Hall 4


Unscrew bolts and disconnect штекерные sockets of coils of ignition on left ГБЦ (fig. 2.326).

THE NOTE
Poses. 1–4 do not consider.

Unscrew bolts and disconnect штекерные sockets of coils of ignition on right ГБЦ.

THE NOTE
Poses. 1–5 do not consider.


Fig. 2.379. A stripper for ignition coils


Remove coils of ignition by means of a stripper (fig. 2.379).
Disconnect behind on left ГБЦ штекерный a socket going to atomizers of injection.

THE NOTE
Poses. 1 and 2 do not consider.


Fig. 2.380. A shtekernyj socket of atomizers of injection


Disconnect behind on right ГБЦ штекерный a socket 1 going to atomizers of injection (fig. 2.380).
Unscrew spark plugs a candle key.
Check up a compression with the help компрессометра.

THE NOTE
The assistant should squeeze out completely a pedal of an accelerator and scroll a starter until компрессометр will not cease to show pressure growth.

Compression

Assemblage is carried out in return sequence.
Screw spark plugs.
In end it is necessary to interrogate memory of malfunctions and, if necessary, to remove errors. After removal of errors from memory of malfunctions it is necessary to activate a mode «Conducted search of malfunctions» and to create a readiness code (Readinesscode) in the block of management of the engine.

The inhaling moment
Shlangovye collars, width of 9 mm:
3 Н·м.


2.8.17. Check of a radial backlash of rods

2.8.19. Removal and installation of cam-shafts