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
- Suspension bracket and steering
   The control of a condition of a casing of the steering mechanism
   Check of dustproof covers and люфта tips of cross-section steering draughts
   Check of dustproof covers of hinges of a forward suspension bracket
   Check люфта a steering
   Check клинового or поликлинового a belt
   Check of level of a working liquid
   Check люфта the bearing of a nave of a wheel
   Shock-absorbers
   The list of malfunctions
   Adjustment of corners of installation of wheels
   Measurement of adjustment of corners of installation of wheels
   The list of malfunctions
   Running gear and steering repair
   Repair of a forward suspension bracket
   Repair of a back suspension bracket
   Steering
   Steering repair
   The list of malfunctions
   Adjustment of the steering mechanism
   Refuelling by a liquid and prorolling of hydrosystem of the amplifier of a wheel
   Safety pillow
   Safety precautions requirements
+ 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



Adjustment of corners of installation of wheels

For the best understanding of separate basic concepts at adjustment of wheels these illustrations are resulted.

For achievement of reliable controllability of the car forward wheels should stand under certain corners in a vertical and horizontal plane. That you could represent accurately to yourselves concept «a parity of angles of rotation of operated wheels», we result an explanation of some concepts:

Convergence: at Audi 80 forward wheels at rest in front stand is more close to each other a little, than behind. In these cases speak: a convergence "positive". The friction between a wheel and road wrings out the left wheel on the left, and right to the right. It is compensated by the forces arising in a forward drive, aspiring to compress forward wheels in front. At car occurrence in turn the positive convergence passes in a negative convergence (divergence) of wheels. It occurs thanks to a trapezoid arrangement of steering draughts: the internal wheel in turn bends more strongly the external. It is necessary, because on turn internal wheels describe narrower circle, than external.

Disorder: so name an easy inclination in forward wheels – at Audi 80 in a wheel niche above they are located is more close to each other, than below. In language of experts it is called as "negative disorder».

Cross-section inclination шкворня: it concerns disorder. The cross-section inclination шкворня is an insignificant inclination of a rotary axis round which at management of a wheel and all rack turns. Both rotary axes are above located is more close to each other, than below. Disorder and a cross-section inclination шкворня in addition prevent trembling of wheels and facilitate them проворачивание.

Longitudinal inclination шкворня back: it is necessary to understand inclined position of a rotary axis in a longitudinal direction of the car as it. It also helps to stabilise rectilinear movement by inertia and to prevent vibration of wheels. Besides, thanks to a longitudinal inclination there is a returning of a steering after turns.