Audi A4, S4
Introduction
Controls and receptions of safe operation
Current leaving and service
- The engine
Specifications
Removal and installation of the top cover of the engine / the bottom protection of an impellent compartment/stretcher
Compression check in engine cylinders, revealing of leaks
Check of the engine by means of the vacuum gauge
- 4-cylinder petrol engines
The general data
Removal and installation of a gear belt
Removal and installation of a head of cylinders
Removal and installation of a belt of a drive of auxiliary units
6 and 8-cylinder petrol engines
4-cylinder diesel engines
6-cylinder diesel engines
System of greasing of the engine
Systems of cooling, heating and the air conditioner
Power supply systems, release and decrease in toxicity of the fulfilled gases
Systems of an electric equipment of the engine
Manual box of a gear change
Automatic transmission
Coupling, power shafts and differential
Brake system
Suspension bracket and steering
Body
Onboard electric equipment
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Removal and installation of a gear belt The petrol engine of 1.6 l ALZ
Drive ГРМ. The petrol engine of 1.6 l ALZ
Removal
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Establish the forward panel in position for service, address to Section Installation of the forward panel in position for maintenance service.
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Remove the top cover of the engine.
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Remove wedge a belt, address to Section Removal and installation of a belt of a drive of auxiliary units.
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Disconnect a tension element wedge a belt.
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Sketch adjusting position of the top cover of a gear belt, in particular, in a transition place to the central cover. |
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Turn a rotary lock counter-clockwise (an arrow on fig.) so that шлиц the screw was in vertical position.
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Disconnect the top cover of a gear belt. For this purpose wring out upwards lock pads of a clip (the marksman on fig.).
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Remove the top cover of a gear belt.
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Tighten a lay brake and establish a check point in neutral position.
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Establish the engine in ВМТ the piston of the first cylinder. For this purpose turn a cranked shaft for the central bolt of fastening of a cogwheel in a direction of rotation of the engine, i.e. clockwise so that labels on a wheel of a camshaft and on cranked to a shaft have coincided.
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Manual a check point: labels ВМТ on a flywheel and to leaders a disk Should coincide.
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АТ: Label ВМТ should be at the left edge of a window (the marksman on an accompanying illustration).
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Turn away screws of fastening of a pulley of a cranked shaft and take out a pulley.
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Disconnect the central and bottom covers of a gear belt (arrow) and take out them.
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Put a chalk or a felt-tip pen on a gear belt an arrow specifying a direction of rotation.
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Turn on клеммную a nut (20) fastenings of a tension roller (18). Turn a tension roller by means of tool T10020 clockwise and thus ослабьте a tension of a gear belt, Drive ГРМ see. The petrol engine of 1.6 l ALZ and an accompanying illustration.
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Remove a gear belt.
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Installation (adjustment of phases газораспределения)
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If during repair carrying out the gear belt acts in film only from a camshaft wheel, adjustment of phases газораспределения is necessary. |
At turn of a camshaft without a gear belt it is not necessary to establish any cylinder in position ВМТ. There is a danger of damage of valves and-or the bottoms of pistons.
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Turn cogwheels so that labels on a wheel of a camshaft and a back cover of a gear belt, and also a label of a wheel of a cranked shaft and the bottom cover of a gear belt have coincided. For this purpose quickly establish a wheel of a cranked shaft.
Put on a gear belt a wheel of a cranked shaft.
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Observe a direction of its rotation. |
Establish into place the central and bottom covers of a gear belt and fix them.
Establish a wheel of a cranked shaft so that the aperture on a wheel has coincided with a ledge on a wheel of a cranked shaft. In this position fix a wheel the moment 25Нм.
Put on a gear belt a tension roller and a camshaft wheel.
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Tension of a gear belt
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The engine should be heated-up to temperature not above hand temperature. |
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Check up, whether labels on a wheel of a camshaft and a back cover of a gear belt, and also on a wheel of a cranked shaft and the bottom cover of a gear belt coincide.
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Before a tension of a gear belt turn a tension roller on the clown by means of tool T10020 five times in both directions against the stop.
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Turn the clown tool T10020 counter-clockwise (an arrow direction on an illustration) against the stop.
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Slowly pull a gear belt so that a label (1) and the index (2) stood opposite each other. If necessary, take advantage for the control of a mirror.
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Keeping a tension roller in this position, tighten a nut of fastening by the moment 20Нм.
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Turn further a cranked shaft on two turns in a direction of rotation of the engine so that the engine has stopped in ВМТ the first cylinder. It is thus important, that the last 45 rotation was made without a stop.
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Once again check up a tension of a gear belt: the Index and a label should be opposite each other.
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The further installation
Petrol engines of 1.8 and 2.0 l (AVJ, BFB, ALT)
Drive ГРМ. Petrol engines of 1.8 and 2.0 l (AVJ, BFB, ALT)
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Position of a wheel of a camshaft. The narrow wall of a wheel of a camshaft shows outside of (arrow), and label ВМТ of the first cylinder is visible in front |
Removal and installation procedures are similar to the petrol engine of 1.6 l. Therefore differences are described only.
Removal
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The tension element of the device of a tension of a gear belt () has oil демпфирование and can be compressed only slowly and under the influence of uniform loading. The excessive effort at compression can lead to damage of a tension roller. |
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Insert against the stop a face key in шестигранное an aperture of a tension roller and turn a tension roller counter-clockwise (on an arrow on an accompanying illustration) so that the tension device could be fixed plates HAZET 2588-2.
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Turn a tension roller, without putting excessive effort. |
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Insert against the stop a face key so that at turn not to damage шестигранник at a tension roller. |
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The tension element of a gear belt has oil демпфирование. To press it it is necessary slowly and in regular intervals. |
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It is not necessary to bend a persistent pad () the lever of the clown. |
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For a tension of a gear belt release a nut (1) tension rollers and turn the clown key HAZET 2587-1 in an arrow direction.
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If the gear belt which was in work is established, note on it a chalk or a felt-tip pen a rotation direction.
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Remove a gear belt.
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Installation (adjustment of phases газораспределения)
Installation is carried out to the similarly same procedure for the petrol engine of 1.6 l.
Tension of a gear belt
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If the tension element of a gear belt is completely put forward, it is necessary for turning in the established position back together with a tension roller. This process can proceed till 5 minutes. The excessive appendix of effort at compression can lead to damage of a tension roller. |
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If the tension element of a gear belt is completely put forward press a tension roller a face key counter-clockwise so that the piston of the tension device could be fixed by lock plates HAZET 2588-2.
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Turn a tension roller in regular intervals, without making considerable effort. |
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It is not necessary to bend a persistent nouse () the lever of the clown. |
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Turn the clown key HAZET 2587-1 counter-clockwise so that lock plate HAZET 2588-2 could be extended.
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Then turn the clown clockwise so that a drill in the size and = 8 mm could pass between the tension lever and the case of the tension device.
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Keeping in this position the clown, tighten a nut (1) fastenings of a tension roller. After that remove a key for a nut inhaling.
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Turn the engine on two turns for the central bolt of a cranked shaft (clockwise) and again establish it in ВМТ the ignition moment.
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Check up a drill the size () between the tension lever and the case of the tension device. The specified size should make 6 10 mm.
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If the size () is less, ослабьте a belt, compress a tension element and again pull a gear belt.
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If the size () will reach, finish installation process.
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The petrol engine of 2.0 l AWA
Drive ГРМ. The petrol engine with direct injection of 2.0 l AWA
Removal
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Removal and installation are similar to the same procedures for the petrol engine of 1.6 l. Therefore here differences (address to an illustration above) are described only.
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Turn away fastening bolts above and uncover a gear belt. Instructions: For simplification of the subsequent installation mark position in a transition place to the central cover of a gear belt.
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The tension element of the device of a tension of a gear belt () has oil демпфирование and can be compressed only slowly and under action of uniform loading. The excessive effort at compression can lead to damage of a tension roller. |
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Press a tension roller a face key clockwise (an arrow on an accompanying illustration) so that the piston it was possible to fix the piston of the tension device a corresponding pin, for example, T40011.
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Turn a roller in regular intervals, without making excessive effort. If the former gear belt is established, mark with a chalk or a felt-tip pen on board of its rotation. |
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Turn on the holder with a directing roller (1). The arrow specifies fastening bolts демпфера the tension device of a belt.
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Remove a gear belt.
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Installation (adjustment of phases газораспределения)
Installation is carried out to the similarly same procedure for the petrol engine of 1.6 l.
As a result establish and fix the holder with a directing roller and a remote washer (11), address to an illustration Drive ГРМ. The petrol engine with direct injection of 2.0 l AWA.
Tension of a gear belt
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Turn a tension roller a face key after an hour hand direction so that it was possible to take out a lock pin.
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Slowly turn a tension roller a face key counter-clockwise and thus pull a gear belt.
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If the tension element of a gear belt is completely put forward, it is necessary for turning in the established position back together with a tension roller. This process can proceed till 5 minutes. The excessive appendix of effort at compression can lead to damage of a tension roller. |
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If the tension element of a gear belt is completely put forward press a tension roller a face key counter-clockwise so that the piston of the tension device could be fixed by a corresponding pin, for example, Т40011.
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Turn a tension roller in regular intervals, without making considerable effort |
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