Audi A4, S4
+ Introduction
+ Governing bodies and methods of safe operation
+ Current leaving and service
- Engine
Specifications
Removal and installation of the top cover of the engine / lower protection of a motive compartment / stretcher
Check of a compression in engine cylinders, identification of leaks
Check of the engine 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 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 the drive of auxiliary units
+ 6-cylinder diesel engines
+ engine Lubrication system
+ Cooling systems, 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 the drive a gear belt with hydraulic damping of a tension roller. Its sign is existence of a damper (12). Instructions for the drive are provided by a gear belt with the tension roller having damping by friction in the end of the Head.
GRM Zubchatoremyonny drive. Diesel engines of 1.9 l (AVB, AWX, AVF)
Removal
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- Install 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 the directing pipe.
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- Disconnect covers and turn off the nuts (arrow) lying under them.
- Remove the top cover of the engine.
- Remove the damper lying under it.
- Again insert against the stop the index of level of oil.
- Take off maple a belt, address to the Section Removal and installation of a belt of the drive of auxiliary units.
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- Holding a fan pulley with the viscous coupling by means of the tool 3212, turn off it a face key on 8 mm (1) from the holder.
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- Remove the fan with the viscous coupling and put it in a fan casing.
- Remove the generator and take out the fan with the viscous coupling from a casing, address to the Section Removal and installation of the generator.
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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 tortional fluctuations) and turn off 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 lower covers of a gear belt (an arrow on an accompanying illustration).
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The cranked shaft is allowed 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 has to 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 gear belt. |
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- Record a nave HAZET 2588-3 finger.
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Instead of the specified finger it is possible to apply a mandrel with a diameter of 6 mm. |
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- Record 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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Tags on a cogwheel of a cranked shaft (2) and the fixing tool (1) have to be opposite to each other. Thus the pin of the tool has to enter an opening of a sealing flange. If such tool available is not present, apply VMT tag on a sealing flange. |
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- Turn off bolts of fastening (arrow) 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 counterclockwise (the direction of an arrow 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 it is necessary to press it evenly, without application 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 direction of rotation.
- Turn off 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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- Take off a gear belt.
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Installation (adjustment of phases of gas distribution)
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- Check, whether HAZET 2588-3, and a cranked shaft HAZET 2588-1 stopper are recorded a camshaft by a finger, 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 allowed to be performed only on the cold engine. |
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At a provorachivaniye of a cranked shaft its stop at position of any piston in VMT is not allowed. Thus there is a danger of damage of valves and/or the bottoms of pistons. If necessary, turn off a cranked shaft back on a corner 90 °. |
- Screw bolts by hand.
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The wheel of a camshaft has to 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.
- Install 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 counterclockwise 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) with a 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 20nm + 45 °.
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- Tighten bolts (arrows on an illustration) fastenings of a wheel of a camshaft the moment 25nm.
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- Take out a lock finger HAZET 2588-3 and a stopper of a cranked shaft of HAZET 2588-1.
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The cranked shaft is allowed to be rotated only in the direction of rotation of the engine. |
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- Turn a cranked shaft 2 turns farther clockwise so that it again stopped in position VMT of the first cylinder.
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- Double-check the and size between the tension lever and the case of the tension device. The demanded value: and = 4.0 ± 1.0 mm.
- If the and size is not reached, tighten a tension roller in way described below.
- Holding a tension roller the HAZET 2587-1 tool, turn off a nut (1). After that on action of effort of the tension device release it so (arrow) to reach the and size. The demanded value and = 4.0 ± 1.0 mm.
- Holding a tension roller in this situation, tighten a nut (1) moment 20nm + 45 °.
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Check of phases of gas distribution
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- For monitoring procedure record once again a wheel of a gear belt a stopper of a cranked shaft of HAZET 2588-1. Thus keep in mind the following:
- Tags on a wheel (2) and a stopper of a cranked shaft (1) have to be opposite to each other. Thus the pin of a stopper of a cranked shaft (shooter) has to enter an opening of a sealing flange.
- The pin of a stopper of a cranked shaft at rotation has to enter an opening on a sealing flange (an arrow on an accompanying illustration).
- If the cranked shaft passed through a tag of VMT of the first cylinder, turn off 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 rotation of a shaft 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 has to 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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- Turn off bolts of fastening (arrow) of a wheel of a camshaft.
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- Put a cap key on the central bolt of a camshaft 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 (arrow) of a wheel of a camshaft the moment 25nm.
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- Take away a lock finger HAZET 2588-3 and a stopper of a cranked shaft of HAZET 2588-1.
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The cranked shaft is allowed 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 direction of rotation, a t.a clockwise so that the cranked shaft again rose in position VMT of the first cylinder.
- Repeat control of phases of gas distribution.
- Put the fan with the viscous coupling in a casing.
- Install 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 installation of the generator.
- Fix the fan with the viscous coupling a new bolt the moment 45nm.
- Establish maple a belt, address to the Section Removal and installation of a belt of the drive of auxiliary units.
- Install into place the forward panel, address to the Section Installation of the Forward Panel in situation for maintenance.
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