Removal and installation of a forward sealing flange of the crankshaft with a crankshaft epiploon. Audi A4 (from 2001 to 2005 release)
Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
2. Engine
2.1. General information
2.2. Predvaritlny checks
2.3. Mekhanichsky part (petrol engines 2,0l)
2.4. Lubrication system
2.5. Cooling system
2.6. System of injection
2.7. System of production of the fulfilled gases
2.8. Mechanical part (petrol engines 3,0; 3,2 l)
2.8.1. Number of the engine
2.8.2. Removal and installation of a poliklinovy belt
2.8.3. Removal and installation of a damper of tortional fluctuations
2.8.4. Removal and installation of a forward sealing flange of the crankshaft with a crankshaft epiploon
2.8.5. Removal and installation of a two-mass flywheel (cars from the manual transmission)
2.8.6. Removal and a press fitting of the needle bearing of a two-mass flywheel (cars from the manual transmission)
2.8.7. Removal and installation of the conducted disk (cars with the automatic transmission)
2.8.8. Replacement of an epiploon of the crankshaft from the chain drive
2.8.9. Removal and installation of the left and right covers of driving chains
2.8.10. Removal and installation of the lower cover of a driving chain
2.8.11. Camshaft drive
2.8.12. Removal of the chain drive from cam-shafts, removal and installation of a natyazhitel of a chain
2.8.13. Removal and installation of a chain of the drive of the oil pump and balancer shaft
2.8.14. Removal and installation of the balancer shaft
2.8.15. Removal and installation of a bent shaft
2.8.16. Conrod and piston group
2.8.17. Check of a radial gap of rods
2.8.18. Check of a compression
2.8.19. Removal and installation of cam-shafts
2.8.20. Replacement of oil scraper caps
2.8.21. Check of basic elements with hydrocompensators
2.8.22. Check of the directing plugs of valves
2.9. Mechanical part (petrol engines of 4,2 l)
2.10. Mechanical part (diesel engines of 2,0 l)
2.11. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment
 







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2.8.4. Removal and installation of a forward sealing flange of the crankshaft with a crankshaft epiploon

Removal

Fig. 2.306. Removal of a damper of tortional fluctuations


Remove a damper of tortional fluctuations (fig. 2.306).
Turn off a pulley of the belt drive from the water pump.
For untwisting of bolts as a countersupport use a tsapfovy key.
Unscrew bolts.

Fig. 2.307. Fastening of a forward sealing flange


Remove a forward sealing flange (fig. 2.307).

Installation
Remove old sealant from a flute of a sealing flange, and also from landing surfaces.
Remove the sealant remains from a sealing flange and the block of cylinders, and also from the oil pallet, for example, with the rotating brush nozzle with a plastic bristle.
Clear landing surfaces; on them there should not be an oil and lubricant.
Cut off a tube nose on a forward mark (diameter an opening about 2 mm).

Fig. 2.308. Filling of a flute of a landing surface with sealant


You apply silicone sealant on a pure landing surface of a sealing flange as it is shown in the figure 2.308.
The flute of a landing surface has to be filled with sealant.
The roller of sealant has to act over a landing surface on 1,5–2,0 mm.

NOTE
The roller of sealant has to be not thicker than the specified sizes, otherwise excess sealant can get to the oil pallet and litter the mesh filter of the oil pump.

The sealing flange has to be established within 5 min. after putting sealant.

Fig. 2.309. Scheme of installation of the adjusting tool


Install the adjusting tool on the expansion plug and get a sealing flange 1 on the expansion plug (fig. 2.309).
Take the adjusting tool.

Fig. 2.310. Installation of a flange on the crankshaft


Install a sealing flange 1 with the inserted expansion plug on the crankshaft (fig. 2.310).
Twirl bolts step by step cross-wise (fig. 2.307).
Further installation is carried out in the return sequence.
Establish a damper of tortional fluctuations.
Establish poliklinovy a belt.
Establish a radiator frame with hinged details.
Establish facing of a front bumper.

Inhaling moments
Forward sealing flange to the block of cylinders * – 9 N · m.
Pulley of the belt drive to the water pump – 20 N · m.
* Tighten step by step cross-wise.


2.8.3. Removal and installation of a damper of tortional fluctuations

2.8.5. Removal and installation of a two-mass flywheel (cars from the manual transmission)