Repair and service Audi A8 in body D2 with 1994 for 1999 of release.
1. Car operation
2. Maintenance service
3. Petrol engines of 2,8 l
4. Petrol engines of 3,7 and 4,2 l
5. Diesel engines of 2,5 l
5.1. The general data
5.2. Recommendations about engine removal
5.3. A pulley of the pump of the amplifier of a steering
5.4. A poliklinovoj belt
5.5. A gear belt
5.6. A cranked shaft
5.7. A head of the block of cylinders
5.8. The klapannyj mechanism
6. Diesel engines of 3,3 l
7. Systems of ignition and injection of fuel of petrol engines
8. System of release of the fulfilled gases of cars with petrol engines
9. The power supply system of diesel engines
10. System of prestarting heating of diesel engines
11. System of release of the fulfilled gases of cars with diesel engines
12. Greasing system
13. Cooling system
14. Coupling
15. A transmission
16. Shaft of a drive of forward wheels
17. Features of a design of transmission of all-wheel drive cars
18. A suspension bracket
19. Wheels and tyres
20. A steering
21. Brake system
22. A body
23. Heating and air-conditioning system
24. An electric equipment
25. Electric schemes
 










5-8-klapannyjj-mekhanizm.html

5.8. The klapannyj mechanism

Sealing ring of a camshaft

Remove a gear belt.
Unscrew a bolt of fastening of a pulley of a gear belt of a camshaft and remove a pulley.

Fig. 3.3–63. The klapannyj mechanism: 1 – a cover of the bearing of a camshaft of inlet valves; 2 – nuts, 15 Нм; 3 – a bolt, 10 Нм; 4 – nuts, 15 Нм; 5 – a nut, 10 Нм; 6 – a bolt, 10 Нм; 7 – a cover of the bearing of a camshaft of final valves; 8 – a camshaft of inlet valves; 9 – a camshaft of final valves; 10 – a hydraulic pusher; 11 – a bolt, 10 Нм; 12 – the vacuum pump; 13 – a persistent half ring; 14 – a head of the block of cylinders; 15 – the final valve; 16 – the inlet valve; 17 – a sealing ring; 18 – a camshaft pulley; 19 – a bolt, 75 Нм; 20 – маслоотражательный a cap; 21 – клапанная a spring; 22 – a support клапанной springs; 23 – crackers; 24 – a hydraulic pusher; 25 – a lever support; 26 – the lever


Fig. 3.3–64. Use of a stripper 2085 for removal of a sealing ring of a camshaft



For removal of a sealing ring use a stripper 2085 (fig. 3.3–64 see). Unscrew an internal part of a stripper on six turns from an external part of a stripper and rigidly fix both parts.
Establish a stripper on a camshaft and, strongly pressing, screw in it in a sealing ring. Расфиксируйте both parts of a stripper and, rotating an internal part of a stripper, remove a sealing ring. Remove a sealing ring from a stripper.
Clear an installation site of a sealing ring.
Grease with engine oil a working edge and an external surface of a new sealing ring before its installation into place.

Fig. 3.3–65. Use send 3241 for installation of a sealing ring of a camshaft



Оправкой 3241 (fig. 3.3–65) establish a sealing ring on a camshaft and, using a bolt of fastening of a pulley, запрессуйте a sealing ring in a nest.
Establish a pulley of a gear belt of a camshaft and a gear belt.

Camshaft
Removal
Before a detachment of the storage battery find out, whether there is at you a code of inclusion of a radio receiver.
Switch off ignition and disconnect a wire of "weight" from the storage battery.
Uncover heads of the block of cylinders.
Remove a gear belt from camshaft pulleys.

Fig. 3.3–58. An arrangement of screws of fastening left (1), top (2) and the right (3) casings of a gear belt



Turn away screws and remove the top section 2 of a casing of a gear belt (fig. 3.3–58 see).
Turn away screws and remove left 1 and the right 3 casings of a gear belt.

Fig. 3.3–66. An arrangement of nuts of fastening of fixing plates of atomizers



Unscrew nuts, remove fixing plates and, having pulled top, take atomizers (fig. 3.3–66).
Marker note adjusting position коромысел.
Unscrew bolts of fastening of covers of bearings and remove camshafts.

Installation
Check up, that the cranked shaft has been fixed by the adjusting screw 3242.
Unscrew from a head of the block of cylinders a hairpin located in an end face of a camshaft.
Be convinced that persistent half rings are on a place.
Check up a condition and position коромысел and hydraulic pushers.

Fig. 3.3–67. Use of the adaptation 3458 for correct installation of camshafts



Establish a camshaft of inlet valves into place so that in a shaft end face it was possible to establish the adaptation 3458 (fig. 3.3–67).

Fig. 3.3–68. An arrangement and numbering of covers of bearings of camshafts



Establish covers of bearings 1 and 5 and fix their bolts (fig. 3.3–68).
Establish a camshaft of final valves into place so that in a shaft end face it was possible to establish the adaptation 3458.
Establish covers of bearings 0 and 4 and fix their bolts (fig. 3.3–68 see).
Repeatedly check up position коромысел and hydraulic pushers.
Clear привалочные surfaces on a head of the block of cylinders and extreme covers of a camshaft.

Fig. 3.3–69. Places of drawing of hermetic on the right internal back cover.



Put on привалочную a surface of the right internal back cover a thin layer of hermetic (rice 3.3–69).

Fig. 3.3–70. A place of drawing of a layer of hermetic on an external back or forward right cover



Put on привалочную a surface of an external back or forward right cover a thin layer of hermetic (fig. 3.3–70).
Establish external covers.
Establish other covers and tighten the demanded moment of a nut of their fastening.
Screw in a hairpin.
The further installation is spent to sequences, return to removal.
Establish a gear belt.
Establish a cover of a head of the block of cylinders.
Wait 30 minutes before engine start-up that hydraulic pushers have come to a normal state, otherwise pistons can hit about valves.


5.7. A head of the block of cylinders

6. Diesel engines of 3,3 l