Removal and installation of a belt pulley of the crankshaft. 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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2.3.3. Removal and installation of a belt pulley of the crankshaft

Removal

Fig. 2.44. Bolts of an exhaust pipe of an independent additional heater


In cars with an additional heater unscrew bolts of an exhaust pipe of an independent additional heater from the noise-insulating screen (fig. 2.44).

Fig. 2.45. Fastening of a forward noise isolation


Weaken quick disconnect couplings 1 and 2 and remove a forward noise isolation (fig. 2.45).
Bring a radiator frame into service situation.
Take off poliklinovy a belt.

Fig. 2.98. Untwisting of a belt pulley of the crankshaft


Turn off a belt pulley of the crankshaft (fig. 2.98).

NOTE
For easing and an inhaling of fastening of a pulley hold the crankshaft a cap wrench for the central bolt.

Installation
Installation is carried out in the return sequence.
Establish a belt pulley of the crankshaft, using only original bolts.

Fig. 2.99. An adjusting opening in a crankshaft pulley


Installation is possible only in one situation: the opening has to be in a pulley of the crankshaft over a pulley ledge under a gear belt (fig. 2.99).
Establish a radiator frame with hinged components.

Fig. 2.96. Fastening of the rubber buffer


Lower a support emphasis against a provorachivaniye at the expense of a body weight on the rubber buffer and tighten nuts (fig. 2.96).
Establish a casing of a front bumper.
Check adjustment of headlights.

Inhaling moments
Pulley of the belt drive to a bent shaft * 10 N · m + 90 ° **.
* Replace a bolt or a nut.
** 90 ° there correspond quarters of a turn.

Removal and installation of an arm of additional units
Removal

Fig. 2.54. Engine casing


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

Fig. 2.43. Mass cable of joint stock bank


Disconnect a mass cable from joint stock bank at the switched-off ignition (fig. 2.43).

NOTE
Before removal of a poliklinovy belt mark the direction of the course with chalk or a felt-tip pen. Change of the direction of the course of earlier operated belt can lead to its damage.

For weakening of a poliklinovy belt turn a tension damper.
Record a tension element by means of a clamp.
Take off poliklinovy a belt.

Fig. 2.100. A tension damper of a poliklinovy belt with a suspended pad of the engine


Remove a tension damper of a poliklinovy belt with a suspended pad of the engine (fig. 2.100).
Remove the generator.
In cars with an additional heater unscrew bolts of an exhaust pipe of an independent additional heater from the noise-insulating screen.
Weaken quick disconnect couplings 1 and 2 and remove a forward noise isolation (fig. 2.45).

Fig. 2.66. Air conditioning system contour tube arm


Remove air conditioning system contour tube arm from the oil pallet (fig. 2.66).

Fig. 2.67. Fastening of the compressor of the conditioner and shtekerny socket of a wire


Disconnect the shtekerny socket of 1 wire going to the electromagnetic coupling of the compressor of the conditioner (fig. 2.67).

ATTENTION
It is forbidden to open a contour of air conditioning system of climatic installation.

Turn off the conditioner compressor from an arm.

NOTE
To avoid damages of the condenser, and also pipelines and hoses of a contour of air conditioning system, it is necessary to watch that lines and hoses were laid without tightness, excesses and breaks.

Suspend the conditioner compressor with the connected lines from below on the car.

Fig. 2.101. Bolts of fastening of an arm of additional units


Turn off fastening of an arm of additional units – bolts of 1-6 (fig. 2.101).
Installation
Installation is carried out in the return sequence.
Tighten bolts in the sequence of 1-6 (fig. 2.101).
Install the generator.
Install the conditioner compressor.
Establish a poliklinovy belt.
To connect the rechargeable battery.
Inhaling moments:
– an arm of additional units to the block of cylinders * – 45 N · m;
– a natyazhitel of a poliklinovy belt to an arm of additional units – 23 N · m.
* Establish on a carving varnish.


2.3.2. Removal and installation of a poliklinovy belt

2.3.4. Removal and installation of a gear belt