Check of a compression. 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
 







2-3-19-proverka-kompressii.html

2.3.19. Check of a compression

Procedure for test

Fig. 2.54. Engine casing


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

NOTE
Temperature of engine oil has to be at least 30 °C.
Voltage of the accumulator is at least 12,7 Century.

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 the special tool.
Unscrew spark plugs a candle key of Century.
Disconnect the 8-row socket of nozzles.
Check compression pressure by means of a kompressometr and the adapter.
You twist a starter until indications of a kompressometr cease to increase.

Compression
Establish candles and coils of ignition.
Interview memory of malfunctions of the control unit of the engine.


NOTE
At a detachment of sockets in memory mistakes register. After measurement interview and if necessary erase memory of malfunctions.

Inhaling moments
Spark plugs in a head of the block of cylinders – 30 N · m.


2.3.18. Installation of a head of the block of cylinders

2.3.20. Repair of the valvate mechanism