Audi 80/90/Coupe

Since 1986-1991 of release

Repair and car operation



Audi 80/90/Coupe
+ 1.2. Car identification
+ 2. Engines, carburettors
3. Greasing system
+ 4. Cooling system
+ 5. Fuel system
+ 6. An exhaust system
+ 7. Ignition system
- 8. Transmission
   8.1.2. A plug - the main cylinder of coupling
   8.1.3. Press a coupling disk
   8.1.4. Malfunctions of coupling
   + 8.2. A mechanical transmission 012
   + 8.3. A mechanical transmission 01А
   + 8.4. An automatic transmission 089
   + 8.5. An automatic transmission 087
   8.6. Dismantling and assemblage of automatic transmissions
   8.7. The block of valves
   + 8.8. An automatic transmission 097
+ 9. Suspension brackets, wheels
+ 10. Brake system
+ 11. A steering
+ 12. A body, salon
+ 13. A central air
+ 14. An electric equipment





8.1.4. Malfunctions of coupling
THE GENERAL DATA

THE POSSIBLE REASON
ELIMINATION METHOD
The coupling pedal does not come back in a starting position (on cars with a coupling hydrodrive)
Air hit in a hydrodrive, level of a working liquid below norm
Restore level of a working liquid to normal, remove air from a hydrodrive.
Прихват pistons in the main thing or the working cylinder
Replace faulty details, remove air from a hydrodrive.
Leak of a working liquid in the main thing or the working cylinder
The same (on cars with a mechanical drive of coupling)
Jamming of a cable of a drive of coupling. The self-regulation mechanism (is faulty at its presence)
Replace a cable.
The same (all cars)
The returnable spring (is faulty at its presence)
Replace a returnable spring.
Jamming of a pedal of coupling
To clear and grease a pedal axis. If necessary to replace the plug.
Jamming of a plug of deenergizing of coupling on картере couplings
To clear шарнирный plug knot. To execute necessary repair.
Слипание or the raised friction between details in a coupling basket
To clear and grease sliding places. To execute necessary repair.
Raised люфт the bearing of deenergizing of coupling on the directing plug, прихват the bearing
To replace directing plug and the bearing of deenergizing of coupling.
Breakage диафрагменной springs of a press disk
To replace a press disk in gathering.
Too "rigid" pedal of coupling (on cars with a mechanical drive of coupling)
Jamming of a cable of a drive of coupling. Cable corrosion in a cover. The self-regulation mechanism (is faulty at its presence)
To replace a drive cable.
Jamming of a plug of deenergizing of coupling on картере couplings
To clear and grease шарнирное connection. To replace the plug.
The same (on cars with mechanical transmission, only for transmission 020)
Слипание or the raised friction between a pusher and a press disk
To grease contact surfaces with a thin layer of greasing G 000 100. To grease with a thin layer a pusher.
The same (all cars)
Jamming of a pedal of coupling. (Before check disconnect a pusher of the main cylinder or a cable of a drive from a pedal)
To clear and grease шарнирные connections. To replace the plug.
Jamming of a peripheral spring. Defect of a peripheral spring
To clear and grease шарнирные connections. To replace a spring.
The raised elasticity of a returnable spring (at presence). The improper returnable spring is established
To establish a returnable spring of the necessary type.
Increase of the effort necessary for deenergizing of coupling because of deterioration of frictional overlays
Inform the customer: the effort of deenergizing of coupling increases at deterioration increase.
Слипание or the raised friction between details in a coupling basket
If the distance from heads of rivets to an overlay surface exceeds 0,1 mm replace a conducted disk of coupling.
Raised люфт the bearing of deenergizing of coupling on the directing plug, прихват the bearing
To clear and grease interfaced details. The worn out directing plugs to replace.
Deterioration of contact surfaces of the bearing of deenergizing of coupling and plug of deenergizing of coupling
To replace the worn out details.
On a press disk improper springs are established
To establish springs with corresponding number under the catalogue.
Jamming of a nave of a conducted disk of coupling on шлицах a primary shaft of a check point
To check up presence of defects on a nave of a disk and шлицах a shaft (задиров). If necessary conducted disk to replace. To clear шлицы naves and шлицы a primary shaft of corrosion and the greasing rests. To grease with a thin layer of greasing G 000 100 шлицы a primary shaft. Remove surplus of greasing, moving a conducted disk on шлицам a primary shaft in both parties.
The raised noise at coupling deenergizing (on cars with a mechanical drive of coupling)
Transmission noise get to salon through a cable of a drive of coupling
To replace antinoise details of a body, or to strengthen their additional antinoise protection.
Jamming of a cable of a drive of coupling (залипание, the raised friction, расплетение)
To replace a drive cable.
At completely squeezed out pedal of coupling диафрагменная the spring of a press disk touches a conducted disk of coupling (a free wheeling of a pedal of coupling of less norm)
To adjust a free wheeling of a pedal of coupling.
The self-regulation mechanism (is faulty at its presence)
To replace a drive cable.
Greasing of rubbing surfaces of a press disk of coupling and диафрагменной springs is necessary
To grease contact surfaces with a thin layer of greasing G 000 100. The worn out details to replace.
The same (on cars with mechanical transmission, only for transmission 020)
It is necessary to grease rubbing surfaces, a pusher and press a coupling disk
To grease rubbing surfaces with a thin layer of greasing G 000 100.
The same (on all cars)
Jamming of a pedal of coupling, the pedal axis is bent
To clear and grease a pedal axis. If necessary to replace the plug.
Jamming of an axis of a peripheral spring because of the raised friction, infringement соосности
To clear and grease an axis.
The raised noise from a returnable spring (if it is provided by a design)
To grease a spring axis.
Defect of the bearing of deenergizing of coupling or bearing holder, deterioration of a contact surface (коробление)
It is usually eliminated by bearing replacement. To replace the damaged directing plugs.
Defect of contact surfaces of a press disk (a bend or breakage of edges of petals диафрагменной a press spring). Infringement of centering of the bearing of deenergizing of coupling
To replace press a disk. To check up a condition of the bearing of deenergizing of coupling and a bearing holder. If necessary replace. To check up a condition of aligning plugs.
Deterioration of the directing bearing коленвала (if is available), несоосность installations of the engine and a check point
To replace the bearing, to put greasing on a basis дисульфида molybdenum. To check up a condition of the aligning plug.
Wrong installation of a conducted disk of coupling
To establish a conducted disk correctly.
The conducted disk which type does not correspond to the given coupling is established
To establish a disk of the necessary type.
Gnash at transfer or backing inclusion, заедает the gear change mechanism, a gear change it is impossible, coupling does not work (on cars with a coupling hydrodrive)
Fall of level of a working liquid. Air hit in a hydrodrive. Leak of a liquid from the worker or the main cylinder, elasticity of walls of a tube of a hydrodrive. Wrong adjustment of a plug of deenergizing of coupling
To check up a hydrodrive. To restore level of a working liquid, to pump over a hydrodrive. To replace faulty details. To restore level of a working liquid, to pump over a hydrodrive. To adjust correctly.
The same (on cars with a mechanical drive of coupling)
Несоосность details
To replace faulty details.
The pedal free wheeling exceeds norm
To check up a pedal free wheeling, if necessary to adjust.
The cable of the drive which is not corresponding to given coupling (the increased length) is established
To establish a cable of a drive of the necessary type.
Jamming of a cable of a drive
To replace a cable.
The self-regulation mechanism (if is available) is faulty
The same (on cars with mechanical transmission, only for transmission 020)
Excessive reduction of length of a pusher owing to deterioration
To replace a pusher, to check up the bearing of deenergizing of coupling. On contact places of a pusher and the bearing to apply a thin film greasings G 000 100.
The same for all cars
Insufficient course of a pedal of coupling (prevents a rug or a covering under a pedal). Coupling completely is not squeezed out
Inform the customer.
The gnash is caused only by gearing of a gear wheel of a backing
Inform the customer. Before backing inclusion to squeeze out a pedal of coupling and to wait for 3-6 seconds depending on diameter of a conducted disk. At first should stop a primary shaft of a check point with a conducted disk.
Wrong adjustment of the mechanism of a gear change
To check up, if necessary to adjust.
Greasing of a support of the lever of a gear change is necessary. Infringement of correct landing of details of the mechanism of a gear change
To grease the gear change mechanism, to replace faulty details.
Залипание or the raised friction of a conducted disk of coupling on шлицах a primary shaft. Corrosion of a nave of a conducted disk or damage at installation. Infringement of centering of a nave of a conducted disk
To check up шлицы naves on absence of the destructions, if necessary conducted disk to replace. To remove corrosion and the rests of greasing from a nave and with шлицов a primary shaft. On шлицы a primary shaft to put very thin layer of greasing G 000 100. To remove surplus of greasing by disk moving on a primary shaft in both parties. If the nave is not aligned, check up position of aligning plugs. Check up a condition of the bearing of deenergizing of coupling, a holder of the bearing, a press disk and directing bearing коленвала. If necessary to replace.
Too small выступание a press disk (the disk of improper type is established)
To replace press a disk.
Defect of the directing bearing коленвала. The primary shaft of a check point rotates at the switched off coupling
To replace directing bearing, to put greasing on a basis дисульфида molybdenum. To check up a condition of aligning plugs. If necessary to replace. To check up a condition of a primary shaft of a check point.
Infringement of mutual centering of the engine and check point (there are no aligning plugs), because of which ring of a conducted disk сдеформировано
Before check point installation to establish aligning plugs. To check up a condition of a conducted disk, a press disk and directing bearing (if is available). If necessary to replace.
Defect of the directing bearing коленвала
Deterioration of frictional overlays because of transfer inclusion on the raised turns, i.e. Switching on a hill-climbing gear at a movement great speed
To replace a conducted disk, to inform the customer.
Deterioration of frictional overlays because of deliberate proslipping by coupling at dispersal
Defect of synchronizers and / or the gear change mechanism
To repair a check point.

Wrong installation of a press disk. Deformation of a conducted disk because of wrong driving
To check up a condition of details. If necessary to replace. Check up position of adjusting hairpins. If after this replacement the gnash does not vanish, check up a condition шлицов on a nave of a conducted disk and freedom проворачивания a primary shaft of a check point, to check up a condition of the directing bearing (if is available) коленвала, to repair a check point.
The gnash is distributed on 2nd transfer, and only at cold transmission
Inform the customer. If necessary replace oil in a check point, having filled in oil with большей viscosity.
The increased thickness of a conducted disk
To replace a conducted disk.
Sticking of a conducted disk to a flywheel owing to corrosion (the car long time was not maintained, high relative humidity)
Slightly to smooth out adjoining surfaces. At strong corrosion to replace details.
Coupling slips (cars with a coupling hydrodrive)
The piston of the main thing or the working cylinder does not come back in a starting position
To replace the main or working cylinder. To replace a working liquid, to pump over a hydrodrive.
The same (cars with a mechanical drive of coupling)
Wrong adjustment of a cable of a drive (insufficient free wheeling of a cable)
To adjust a cable. If necessary to replace with a cable of the necessary type.
The self-regulation mechanism (is faulty at its presence)
If necessary to replace a cable.
Cable jamming
If necessary to replace a cable.
The same (on cars with mechanical transmission, only for transmission 020)
Leak of an epiploon of a pusher of deenergizing of coupling on primary to a shaft
To replace an epiploon, a conducted disk. To clear press a disk and a flywheel.
The same (all cars)
Are established conducted and press a disk of inappropriate type
To replace with disks of the necessary type.
Deterioration of a conducted disk, burning out of a press disk, formation of furrows owing to an overheat, deformation of a press disk because of wrong installation, weak effort of a press disk. Wrong driving at normal deterioration
To replace conducted and press disks. To inform the customer.
The raised friction of details of transmission, залипание draughts of a pedal
To clear and grease шарнирные connections, if necessary to repair.
Замасливание coupling and flywheel disks. Deterioration of an epiploon коленвала. Greasing hit on rubbing surfaces because of excessive greasing of a nave of a conducted disk
To replace a conducted disk. To clear contact surfaces of a press disk and a flywheel. To replace an epiploon коленвала, to remove surplus of greasing from a primary shaft.
Wrong installation of a conducted disk
To establish a disk correctly. To check up a condition of a conducted disk. If necessary to replace.
Coupling "conducts", jerks at in a start of motion (cars with a coupling hydrodrive)
Wrong adjustment of coupling
To adjust correctly.
Air hit in a hydrodrive, defects in the main thing and the worker cylinders
To replace faulty details. To check up level of a working liquid, to pump over a hydrodrive, to check up presence of leaks.
The pusher of the main thing or the working cylinder does not come back in a starting position
To replace faulty details. If necessary to replace a working liquid. To pump over a hydrodrive.
The same (cars with a mechanical drive of coupling)
Cable jamming
To replace a cable.
Pedal jamming. (Before check to disconnect a cable from a pedal.)
To clear and if necessary to grease шарнирные connections. If necessary to replace the plug.
Jamming or the raised friction of a plug of deenergizing of coupling
To clear and grease шарнирные connections. If necessary to replace the plug.
The same (all cars)
Unstable work of the engine
Check up engine adjustment, eliminate the reason.
Driving errors: too small turns at dispersal
Inform the client.
The conducted disk of inappropriate type is established
To replace a disk.
Noise idling (only for transmission 020)
Замасливание a conducted disk, contact surfaces of a press disk and a flywheel (infiltration of oil from a coupling basket is observed)
To check up an epiploon of a pusher of deenergizing of coupling, if necessary to replace. To replace a conducted disk, to clear press a disk and a flywheel.
The same (for all cars)
Breakage демпфирующих springs
To replace a conducted disk.
On a conducted disk there is no демпфирующая a plate (the raised noise idling)
To establish демпфирующую a plate.
Deformation, breakage or ovality of a press disk
To replace press a disk.

Unstable work of the engine
Check up engine adjustments, eliminate the reason.
Infringement of correct position of the engine because of softness of details of its suspension bracket
Check up engine mount details. If necessary replace.
Shock-absorbers are faulty
To replace shock-absorbers.
Замасливание frictional overlays of a conducted disk, contact surfaces of a press disk and a flywheel
Establish the reason of hit of oil. If necessary execute repair. To replace a conducted disk. To clear press a disk and a flywheel.
Raised люфт the bearing of deenergizing of coupling on the directing plug (non-uniform distribution of the effort operating on диафрагменную a spring of a press disk)
To replace the bearing and directing plug. To check up a condition of details and шарнирных connections.
Non-uniform work press диафрагменной springs because of raised люфта the bearing of deenergizing of the coupling causing non-uniform distribution of effort on a contour of a diaphragm
To check up a surface прилегания frictional overlays of a conducted disk to a basic surface of a flywheel and a condition диафрагменной springs. If necessary to replace press a disk. To replace the bearing and directing plug.
Deformation of a basket of coupling in the course of assemblage therefore correct position of a press disk is broken
To clear a flywheel and press a disk of greasing. At detection of serious destructions (задиров, traces of an overheat, grooves) to replace. To remove greasing from a nave and with шлицов a primary shaft. To apply a thin film greasings G000 100 on шлицы a primary shaft. To remove surplus of greasing by moving of a conducted disk on a primary shaft in both parties.