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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Audi A6 (1997 release)

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Audi A6
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Audi
A6
General Information
Operation of the vehicle
Maintenance
Engines
Four-cylinder petrol engines
Six-cylinder petrol engines
Overview
Control parameters of the engine parts
Tightening torques of the main threaded connections
Refitting
Ribbed Belts
The pulley-damper
Toothed belt
The front lip of the crankshaft
Dual mass flywheel
Drive plate
Crankshaft
The pistons and connecting rods
Intake manifold
The left cylinder head cover
The right cylinder head cover
Cylinder Head
Camshafts and hydraulic chain tensioner
Checking the hydraulic valve lifters
Diesel engines 1.9 l
Diesel engines 2.5 l
Ignition, fuel injection and exhaust of gasoline engines
The power supply system, and preheating the exhaust gases of diesel engines
Lubrication System
Cooling system
Coupling
Transmission
The front wheel drive shafts
Design features four-wheel drive transmission
Suspension
Wheels and tires
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Body
Heating and air conditioning
Electrical
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The front lip of the crankshaft



Refitting

The oil pan, front and rear engine cover
Fig. 3.2.37. The oil pan, front and rear engine covers: 1 - a bolt, 40 Nm; 2 - a bolt (Nm M6-10, M8-30 Nm); 3 - Seal crankshaft; 4 - bolt 10 Nm; 5 - guide tube for dipstick indicator; 6 - a sealing ring; 7 - stopper for supporting the compensator reactive torque of the engine; 8 - bolt 40 Nm; 9 - bolt 42 Nm; 10 - support of the compensator reactive torque of the engine; 11 - bolt 45 Nm; 12 - the upper part of the oil pan; 13 - a bolt (Nm M6-10, M7-16 Nm M8-20 Nm) 14 - dual-mass flywheel; 15 - a bolt of fastening of a flywheel, 60 Nm, and tighten on a corner 180 ?�; 16 - the needle bearing; 17 - a lining; 18 - bolt 10 Nm; 19 - Back Cover with sealing ring; 20 - a lining; 21 - the block of cylinders; 22 - a lining; 23 - the oil pump; 24 - the front cover; 25 - a sealing ring


NOTE
The needle bearing 16 (Fig. 3.2.37) installed only on vehicles with manual transmission and is pressed into the hole in the end of the crankshaft.
When assembling the sealing rings 3, 24 and spacers 17, 20, 22 must be replaced.
Before removing the back cover is required to remove the oil pan.

Replacing the front cuff of the crankshaft is done with the engine mounted on the vehicle.
Remove the timing belt.

Elements of crankshaft pulley
Fig. 3.2.38. Elements of crankshaft pulley 1 - the toothed belt pulley of the crankshaft; 2 - remote bush; 3 - a bolt


3 Remove the bolt (Fig. 3.2.38) crankshaft pulley.
Remove the spacer sleeve 2 and 1 toothed belt pulley.

Use puller 3203 (1) to remove the front crankshaft sealing ring
Fig. 3.2.39. Use puller 3203 (1) to remove the front crankshaft sealing ring


To remove the front seal, use puller 3203 (Fig. 3.2.39). Remove the inside of the puller six turns of the outer part of the stripper rigidly fix both parts.
Install the puller on the crankshaft and strongly pressing, screw it into the sealing sleeve. Loosen fixing parts puller and turning the inside of the puller, remove the cuff. Remove the collar with a stripper.
Clean the installation location of the seal.
Apply engine oil to sealing lip and an outer surface of the new seal before installing it in place.

Use mandrel 3265 for the installation of a forward sealing ring of a cranked shaft
Fig. 3.2.40. Use mandrel 3265 for the installation of a forward sealing ring of a cranked shaft


Using the mandrel 3265 (Fig. 3.2.40), set the seal of the crankshaft and using a pulley bolt to press-fit the sleeve into the groove.
Install the timing belt pulley of the crankshaft 1 (see. Fig. 3.2.38), spacer sleeve 2 and screw a new bolt of fastening of a pulley 3.

A WARNING
On the bearing surface between the pulley and the crankshaft and on the pulley bolt of grease.
When you install a new bolt, replace the crankshaft pulley.


Install the timing belt.




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Dual mass flywheel

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