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)
2.9. A mechanical part (petrol engines 4,2)
2.10. A mechanical part (diesel engines 2,0)
2.10.1. Engine number
2.10.2. Candles накаливания
2.10.3. Removal and installation semi wedge a belt
2.10.4. Removal and installation of a tension element semi wedge a belt
2.10.5. Removal and installation гасителя крутильных fluctuations
2.10.6. Removal and installation of an arm of additional units
2.10.7. Removal and installation of a gear belt
2.10.8. Updating of phases timing
2.10.9. Проворачивание crankshaftа to ВМТ
2.10.10. Sealing flanges and a two-mass flywheel / a flywheel
2.10.11. Removal and flywheel installation, cars with multitronic
2.10.12. Shatunno-piston group
2.10.13. Removal and installation of a cover of a head of the block of cylinders
2.10.14. Repair клапанного the mechanism
2.10.15. Removal and installation of cam-shafts
2.10.16. Removal and installation of roller levers
2.10.17. Replacement маслосъемных caps
2.10.18. Check of hydraulic pushers
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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2-10-15-snyatie-i-ustanovka-raspredvalov.html

2.10.15. Removal and installation of cam-shafts

Removal
Result a radiator framework in service position.
Remove an engine casing.

Fig. 2.512. The vacuum pipeline


Disconnect the vacuum pipeline 3 (fig. 2.512).

THE NOTE
Water hoses 1 and 2 remain connected (fig. 2.512).

Unscrew bolts 1 and nuts 2.
Unscrew bolts.

Fig. 2.513. Fastening of a cooler of system рециркуляции ОГ


Remove a system cooler рециркуляции ОГ and postpone it with the connected hoses of system of cooling aside (fig. 2.513).

Fig. 2.514. Fastening of an arm of a cooler of system рециркуляции ОГ


Remove an arm of a cooler of system рециркуляции ОГ with ГБЦ (fig. 2.514).
Remove a gear belt.
Take 2х a lock pin.
Unscrew bolts of gear wheels of a cam-shaft.

Fig. 2.491. Installation crankshaftа in position ВМТ


Remove gear wheels of cam-shafts from naves (fig. 2.491).

Fig. 2.515. Untwisting of a fixing bolt of a nave of an inlet cam-shaft


Loosen the a fixing bolt of 1 nave of an inlet cam-shaft, using a countersupport (fig. 2.515).

Fig. 2.516. Untwisting of a fixing bolt of a nave of a final cam-shaft


Loosen the a fixing bolt of 1 nave of a final cam-shaft, using a countersupport (fig. 2.516).
Turn off fixing bolts of naves approximately on 2 turns.
Put to a nave of an inlet cam-shaft a stripper and twist in a nave bolts.

Fig. 2.517. Removal of a nave of an inlet cam-shaft


Remove a nave, keeping шестигранник (SW 30) a stripper and twisting a bolt 1 (fig. 2.517).
Put to a nave of a final cam-shaft a stripper and twist in a nave bolts.

Fig. 2.518. Removal of a nave of a final cam-shaft


Remove a nave, keeping шестигранник (SW 30) a stripper and twisting a bolt 1 (fig. 2.518).

Fig. 2.519. Bolts of fastening of cover ГБЦ


Unscrew bolts 2 and 4 (fig. 2.519).

THE NOTE
Bolts 1, 3 and 5 remain twisted.

Remove from cover ГБЦ a ventilation hose картера the engine and a vacuum hose.

Fig. 2.509. An order отворачивания bolts of fastening of cover ГБЦ


Unscrew bolts of cover ГБЦ in sequence 11–1 (fig. 2.509).
Uncover ГБЦ.

Fig. 2.520. Nuts of fastening of blocks of pumps-atomizers


Loosen the counternuts of 2 adjusting screws 1 on all blocks the pump-atomizer (fig. 2.520).
Unscrew adjusting screws so that the corresponding balance weight has nestled on a spring of a pusher of a pump-atomizer.
Unscrew bolts 1, 3 and 5.

Fig. 2.521. An order of easing of bolts of fastening of an axis болансира


Bolts 2 and 4 alternately in some stages loosen the also unscrew (fig. 2.521).

THE NOTE
That separate details remained fixed on a shaft, it is not necessary to take out bolts from a balance weight axis. If necessary, mark an arrangement of bolts on the balance weight.

Remove a balance weight axis.
Remove тандемный the pump.

THE NOTE
Hoses should remain connected to тандемному to the pump.


Fig. 2.522. Fastening of the tip of a pump-atomizer


Take deblocking pin 1 and turn off a nut with longitudinal накаткой 2 (fig. 2.522).
Disconnect the central tip of pumps-atomizers and candles накаливания.
Disconnect electric sockets from candles накаливания and modules of pumps-atomizers.

ATTENTION
For electroconducting removal it is necessary to weaken or twist only screws on bracketх fastenings. If disconnect a plait of wires from a clamp, it will pursue and because of raised backlash can break off.

Turn off screws on clamps and will put a plait of wires in the complete set aside.

Fig. 2.523. An order of easing of bolts of fastening of the module of support


Turn off the others 15 bolts of the module of support in regular intervals, moving from edge inside (fig. 2.523).
Hand unscrew squeezing screws SW15 of a frame counter-clockwise against the stop.
Establish a frame on the module of support how it is shown, and tighten fixing bolts SW 10 with the moment 10 Нм.
Rotate выжимные bolts by hand clockwise against the stop in bolts of a head of the block of cylinders.
Now in regular intervals twist squeezing bolts in sequences which is specified on heads of bolts to branch of the module of support from a head of the block of cylinders.
Take the module of support.

THE NOTE
Mark an accessory of loose leaves on an underside by means of a waterproof marker.

Take cam-shafts.

Installation
Remove the hermetic rests on the module of support and ГБЦ, for example, by means of a rotating plastic brush.

THE NOTE
Replace the bolts tightened on a certain corner.

Clear landing surfaces; on them there should not be an oil and greasings.
Check up, whether is crankshaft in ВМТ.
The gear wheel of a gear belt crankshaftа in ВМТ the cylinder 1 is fixed by a stopper crankshaftа for engines with a round gear wheel of a gear belt crankshaftа or a stopper crankshaftа for engines with an oval gear wheel of a gear belt crankshaftа.

THE NOTE
Watch that loose leaves of bearings of a cam-shaft have not been mixed.

At cam-shaft installation watch correct landing of keeping ledges of loose leaves in covers of the bearing and a head of the block of cylinders.
Grease flutes of cam-shafts with engine oil.
Insert cam-shafts in position ВМТ of the cylinder 1.

Fig. 2.524. Position of correct packing of cam-shafts


On both cam-shafts cams 1 and 2 цил.1 should be turned upwards (fig. 2.524).
Grooves in cam-shafts should be directed also upwards.
Cut off a tube nouse on a forward mark (diameter of an aperture about 2 mm).
Put hermetic on a pure landing surface of the module of support.

Fig. 2.525. The scheme of packing of hermetic on a landing surface of the module of support


Thickness of the platen of hermetic: 2 mm (fig. 2.525).

THE NOTE
The module of support should be established during 5 mines after hermetic drawing.

In regular intervals tighten bolts 1. 20, moving from the centre to edge.
Bolts 1, 3, 5, 7 and 9 axes of the balance weight to tighten on 90 (1/4 About.) (fig. 2.523).
The further installation is carried out in return sequence.
Connect the central tip of pumps-atomizers and candles накаливания.
Establish blocks the pump-atomizer.
Establish тандемный the pump.
Establish a cover of a head of the block of cylinders.
Establish epiploons of camshafts.
Establish a gear belt (adjust phases timing).
Establish гаситель крутильных fluctuations.
Establish полиwedge a belt.
Establish a system cooler рециркуляции ОГ.
Establish a framework of a radiator with hinged elements.
Lower an emphasis of a forward support at the expense of a body weight on the rubber buffer and tighten nuts.
Establish an overlay of a forward bumper.

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

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

The inhaling moments
The module of support to ГБЦ: 20 Нм.
Axis of the balance weight and ГБЦ*: 20 Нм +90 **.
Back cover of a gear belt to the module of support ***: 10 Нм.
Arm of a cooler of system рециркуляции ОГ to ГБЦ: 10 Нм.
Emphasis of a forward support to a radiator framework: 28 Нм.
Shlangovye collars, width of 9 mm: 3 Нм.
Shlangovye collars, width of 13 mm: 5,5 Нм.
* Replace bolts.
** 90 there correspond turn quarters.
*** Bolts to insert, preliminary having greased with their carving varnish; a carving varnish.


2.10.14. Repair клапанного the mechanism

2.10.16. Removal and installation of roller levers