Audi 80/Avant (B4)

Since 1991-1995 of release

Repair and car operation

Audi 80/Avant
+ The description
+ Engines
+ System of release of the fulfilled gases
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and воздухозаборные channels
+ Injection system
+ Coupling
- Transmission and transmission
   Removal and installation of a mechanical transmission (КП)
   Noise in a transmission
   Automatic transmission (АКП)
   Electronic control АКП
   The main transfer
   Power shafts
   Check of cuffs of power shafts
   The list of malfunctions
+ Suspension bracket and steering
+ Brake system
+ Antiblocking system of brakes
+ Wheels and tyres
+ Kuzovnaja electrosystem
+ Ignition system
+ Illumination
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
+ Specifications


The main transfer

The transmission and the main transfer are located at Audi 80, as almost at all front-wheel cars, in one general картере.

The twisting moment from the engine gets to the main transfer through one small and one big gear wheel. To the big gear wheel it is fastened картер differential. In it картере there are four conic gear wheels being in gearing from which two are connected with leading semiaxes.

Until the car moves directly, both lobbies of a wheel turn with frequency of the big gear wheel of the main transfer. Conic gear wheels of the differential rotating in the same rate, on the contrary, stand. At turn passage the external wheel should pass longer way, than located in turn. Then conic gear wheels start to work: faster rotation of an external wheel and its conic gear wheel operates through both satellite conic gear wheels on a conic gear wheel on an inside of turn which accordingly rotates more slowly.

This alignment is necessary, differently the car on turns would move jerky with sliping forward wheels. However differential presence can appear and a lack, for example, if one of driving wheels is scrolled on a slippery surface. Then to other forward wheel it is not transferred almost any draught, the car does not get under way from a place.