Audi 80/Avant (B4)

since 1991-1995 of release

Repair and car operation



Audi 80/Avant
+ Technical specification
+ Engines
+ System of production of the fulfilled gases
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and airintaking channels
+ injection System
+ Coupling
+ Transmission and transmission
- Suspension bracket and steering
   Control of a condition of a casing of the steering mechanism
   Check of dustproof covers and люфта tips of cross-section steering drafts
   Check of dustproof covers of hinges of a forward suspension bracket
   Check люфта steering
   Check of a maple or poliklinovy belt
   Check of level of working liquid
   Check люфта bearing of a nave of a wheel
   Shock-absorbers
   List of malfunctions
   Adjustment of corners of installation of wheels
   Measurement of adjustment of corners of installation of wheels
   List of malfunctions
   Repair of a running gear and steering
   Repair of a forward suspension bracket
   Repair of a back suspension bracket
   Steering
   Steering repair
   List of malfunctions
   Adjustment of the steering mechanism
   Filling by liquid and pumping of hydrosystem of the amplifier of a wheel
   Safety cushion
   Safety measures requirements
+ Brake system
+ Anti-blocking system of brakes
+ Wheels and tires
+ Body electrosystem
+ ignition System
+ Lighting
+ 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 main concepts at adjustment of wheels these illustrations are given.

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

Convergence: at Audi 80 forward wheels at rest in front stand slightly more closely to each other, than behind. In these cases speak: convergence "positive". The friction between a wheel and the 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 entry of the car into turn the positive convergence passes to a negative convergence (divergence) of wheels. It occurs thanks to a trapezoid arrangement of steering drafts: the internal wheel in turn bends more strongly than the external. It is necessary, because on turn internal wheels describe narrower circle, than external.

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

Cross-section inclination шкворня: he treats 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 more closely to each other, than below. Disorder and a cross-section inclination шкворня in addition prevent trembling of wheels and facilitate their provorachivaniye.

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