Audi 80/90/Coupe

since 1986-1991 of release

Repair and car operation

Audi 80/90/Coupe
+ 1.2. Car identification
- 2. Engines, carburetors
   2.1.2. Removal and engine installation (5-cylinder models)
   2.1.3. Dismantling and assembly of engines
   2.1.4. Head of the block of cylinders, gazoraspredeleniye mechanism
   - 2.2. Engine electric equipment
      2.2.2. Tension of a maple belt
      2.2.3. Maple belt of the generator of an alternating current
      2.2.4. Regulator of tension of the generator of an alternating current
      2.2.5. Vacuum amplifier
      2.2.6. Vacuum final valves
      2.2.7. The switches established on a steering column
      2.2.8. Check of vacuum system
   + 2.3. Carburetors
3. Greasing system
+ 4. Cooling system
+ 5. Fuel system
+ 6. Exhaust system
+ 7. Ignition system
+ 8. Transmission
+ 9. Suspension brackets, wheels
+ 10. Brake system
+ 11. Steering
+ 12. Body, salon
+ 13. Central air
+ 14. Electric equipment

2.2.2. Tension of a maple belt

GENERAL INFORMATION

Cars without a gear lath on an arm

Because of increase in development of the electric power the generator of an alternating current, check of a tension of a maple belt became more important.

The following indicators should be defined at check of a tension of a maple belt when pressing on a belt by a thumb.

Maple a belt in length to 1000 mm, the maximum deviation and:

new maple a belt – about 2 mm

maple a belt which was in operation – about 5 mm

Maple the belt is longer, than 1000 mm, the maximum deviation and:

new maple a belt – about 10 mm

maple a belt which was in operation – about 15 mm

The given values are valid for cars of all updatings.

Adjustment

PERFORMANCE ORDER

1) weaken bolts

2) move the generator outside so that to receive the demanded maximum size of a deviation

3) tighten fastening bolts

Cars with the gear mechanism

PERFORMANCE ORDER

1) weaken bolts In, With and a sharnirny bolt of a support (it is not shown in drawing)

Prevention
Bolts of fastening should be rather weakened, that the generator could move freely under the weight.

2) pull maple a belt rotating a tension gear wheel In by means of a wrench

3) a free hand check the maximum deviation of a belt under the pressure of a thumb
for a new belt the deviation should be 8 mm
for an old belt the deviation should be 4 mm

4) twirl or turn off a tension gear wheel to achieve a necessary deviation

5) after that, tighten fastening bolts till the next moments of an inhaling:
the moment of an inhaling of a bolt In: 35 N of m.
the moment of an inhaling of a bolt With: 20 N of m.
moment of an inhaling of a bolt of a support: 35 N of m.