Audi A4, S4
+ Introduction
+ Governing bodies and receptions of safe operation
+ Current leaving and service
- Engine
Specifications
Removal and installation of the top cover of the engine / bottom protection of an impellent compartment/stretcher
Compression check in engine cylinders, identification of leaks
Engine check by means of the vacuum gage
+ 4-cylinder petrol engines
+ 6-and 8-cylinder petrol engines
- 4-cylinder diesel engines
General information
Removal and installation of a gear belt, engines of 1.9 l (AVB, AWX, AVF)
Natyazhitel of a belt with damping by a friction
Removal and installation of a head of cylinders, diesel engines of 1.9 l (AVB, AWX, AVF)
Removal and installation of a belt of a drive of auxiliary units
+ 6-cylinder diesel engines
+ System of greasing of the engine
+ Systems of cooling, heating and air conditioner
+ Power supply systems, release and decrease in toxicity of the fulfilled gases
+ Systems of electric equipment of the engine
+ Manual box of gear shifting
+ 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, engines of 1.9 l (AVB, AWX, AVF) The description belongs to a drive a gear belt with hydraulic damping of a tension roller. Its sign is existence of a damper (12). Instructions for a drive a gear belt with the tension roller having damping by a friction, are provided in the end of Head.
Zubchatoremyonny drive of GRM. Diesel engines of 1.9 l (AVB, AWX, AVF)
Removal
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Establish the forward panel in situation for service, address to the Section Installation of the forward panel in situation for maintenance.
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Take out the index of level of oil (1) of a directing pipe.
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Disconnect covers and unscrew nuts (arrow) lying under them.
Remove the top cover of the engine.
Remove a damper lying under it.
Again insert against the stop the index of level of oil.
Remove maple a belt, address to the Section Removal and installation of a belt of a drive of auxiliary units.
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Holding a fan pulley with the vyazkostny coupling by means of the tool 3212, unscrew it a face key on 8 mm (1) from the holder.
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Remove the fan with the vyazkostny coupling and put it in a fan casing.
Remove the generator and take out the fan with the vyazkostny coupling from a casing, address to the Section Removal and generator installation.
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Turn out screws (1) and (2) and remove the device of a tension of a maple belt.
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Remove the top cover of a gear belt.
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Turn out screws (3) and uncover (2).
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Take aside the electromagnetic valve of adjustment of pressure of pressurization (1).
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Uncover at a pulley of a cranked shaft (a damper of krutilny fluctuations) and unscrew a pulley.
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For an otvorachivaniye and fastening of a pulley hold it a cap key for the central bolt. |
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Disconnect the central and bottom covers of a gear belt (an arrow on an accompanying illustration).
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The cranked shaft is authorized to be turned only in the direction of rotation of the engine, i.e. clockwise. The cranked shaft by a key for the central bolt is turned. |
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Turn a cranked shaft and establish it in position VMT of the first cylinder. Thus the interval between pads (1) on a rotor of the sensor of a camshaft should lie against marking «4Z» (2) on a back cover of a gear belt.
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On an accompanying illustration for descriptive reasons the wheel is shown without a gear belt. |
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Fix a nave HAZET 2588-3 finger.
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Instead of the specified finger it is possible to apply an opravka in diameter of 6 mm. |
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Fix a pulley of a cranked shaft HAZET 2588-1 finger. For this purpose insert the special tool (a stopper of a cranked shaft) from an end face of a wheel of a gear belt into its gear wreath.
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Labels on a cogwheel of a cranked shaft (2) and the fixing tool (1) should be opposite to each other. Thus the pin of the tool should enter into an opening of a sealing flange. If such tool available is not present, put on a sealing flange VMT label. |
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Unscrew bolts of fastening (shooters) so that a wheel of a camshaft it was turned in oblong openings.
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Insert a face key against the stop into a six-sided opening of a tension roller and turn a tension roller counter-clockwise (the arrow direction on an accompanying illustration) so that the device of a tension could be fixed by a lock level of HAZET 2588-2.
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The face key is inserted against the stop in order that it was not damaged at turn of a tension roller. |
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The tension element of a gear belt has oil damping and to press it follows evenly, without the appendix of considerable efforts. |
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If the gear belt which was in work is established, note on it chalk or a felt-tip pen the rotation direction.
Unscrew a nut of fastening of a tension roller.
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Turn out bolts (arrows on an accompanying illustration) the tension device of a gear belt and remove the tension device.
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Remove a gear belt.
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Installation (adjustment of phases of a gazoraspredeleniye)
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Check, whether are fixed a camshaft by HAZET 2588-3 finger, and a cranked shaft HAZET 2588-1 stopper, and also whether the device of a tension of a gear belt is fixed by a lock plate of HAZET 2588-2.
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Adjusting works with a gear belt are authorized to be made only on the cold engine. |
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At a provorachivaniye of a cranked shaft its stop is not allowed at position of any piston in VMT. Thus there is a danger of damage of valves and/or the bottoms of pistons. If necessary, unscrew a cranked shaft back on a corner 90 °. |
Screw bolts by hand.
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The wheel of a camshaft should rotate and not overturn. |
Turn a camshaft wheel in its oblong openings against the stop.
Put on a gear belt a camshaft wheel, a tension roller, a wheel of a cranked shaft and in the last turn on a wheel of the pump of cooling liquid.
Establish the device of a tension of a gear belt.
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Tension of a gear belt
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Turn the clown the HAZET 2587-1 tool counter-clockwise against the stop (And) so that it was possible to take out a lock plate of HAZET 2588-2.
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Turn slowly the tension device clockwise (overcoming resistance) so that between the tension lever and the case it was possible to insert easily a drill (2) diameter of 4.0 mm. Size and = 4.0 ± 1.0 mm.
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Holding a tension roller in this situation tighten a nut of a tension roller (1) moment 20Нм + 45 °.
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Tighten bolts (arrows on an illustration) fastenings of a wheel of a camshaft by the moment 25Нм.
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Take out a lock finger of HAZET 2588-3 and a stopper of a cranked shaft of HAZET 2588-1.
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The cranked shaft is authorized to be rotated only in the direction of rotation of the engine. |
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Turn a cranked shaft on 2 turns further clockwise so that it again stopped in position VMT of the first cylinder.
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Once again check the size "a" between the tension lever and the case of the tension device. Demanded value: and = 4.0 ± 1.0 mm.
If the size "a" is not reached, tighten a tension roller in a way described below.
Holding a tension roller the HAZET 2587-1 tool, unscrew a nut (1). After that on action of effort of the tension device release it so (shooter) to reach the size "a". Demanded value and = 4.0 ± 1.0 mm.
Holding a tension roller in this situation, tighten a nut (1) moment 20Нм + 45 °.
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Check of phases of a gazoraspredeleniye
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For monitoring procedure fix once again a wheel of a gear belt a stopper of a cranked shaft of HAZET 2588-1. Thus keep in mind the following:
Labels on a wheel (2) and a stopper of a cranked shaft (1) should be opposite to each other. Thus the pin of a stopper of a cranked shaft (shooter) should enter into an opening of a sealing flange.
The pin of a stopper of a cranked shaft at rotation should enter into an opening on a sealing flange (an arrow on an accompanying illustration).
If the cranked shaft passed through a label of VMT of the first cylinder, unscrew a shaft on 90 ° back so that it again at rotation in the set direction stopped in position VMT of the first cylinder.
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Adjustment by shaft rotation back for the purpose of installation of a stopper is not allowed. |
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Check, whether the nave by means of a lock level of HAZET 2588-3 is fixed.
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The interval between pads (1) on a rotor of the sensor of a camshaft should lie against marking «4Z» (2) on a back cover of a gear belt.
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If the nave is not fixed
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Unscrew bolts of fastening (shooters) of a wheel of a camshaft.
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Put on the central bolt of a camshaft a cap key and turn a nave so that the lock level of HAZET 2588-3 could enter.
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Tighten in this situation bolts of fastening (shooters) of a wheel of a camshaft the moment 25Нм.
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Clean a lock finger of HAZET 2588-3 and a stopper of a cranked shaft of HAZET 2588-1.
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The cranked shaft is authorized to be turned only in the direction of rotation of the engine, i.e. clockwise. |
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Turn a cranked shaft on 2 turnovers of the rotation direction, т.е clockwise so that the cranked shaft again rose in position VMT of the first cylinder.
Repeat control of phases of a gazoraspredeleniye.
Put the fan with the vyazkostny coupling in a casing.
Establish into place the generator, thus for simplification of installation of the generator of the plug of lock bolts beat out a little back, address to the Section Removal and generator installation.
Fix the fan with the vyazkostny coupling a new bolt the moment 45Нм.
Establish maple a belt, address to the Section Removal and installation of a belt of a drive of auxiliary units.
Establish into place the forward panel, address to the Section Installation of the forward panel in situation for maintenance.
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