Audi 80/90/Coupe

since 1986-1991 release

Repair and operation of the car



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



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2.2.2. Tension of a maple belt

GENERAL INFORMATION

Cars without gear lath on an arm

Because of increase in power generation by the generator of alternating current, check of a tension of a maple belt became more important.

The following indicators have to be defined when checking a tension of a maple belt when pressing on a belt by a thumb.

Maple belt up to 1000 mm long, maximum deviation and:

new maple a belt – about 2 mm

maple the 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 the belt which was in operation – about 15 mm

The given values are valid for cars of all modifications.

Adjustment
PERFORMANCE ORDER
1) weaken bolts
2) move the generator outside so that to receive the required maximum size of a deviation
3) tighten fastening bolts

Cars with the gear mechanism
PERFORMANCE ORDER
1) weaken bolts In, With and a hinged bolt of a support (it is not shown in the drawing)

Prevention

Bolts of fastening have to 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 pressure of a thumb
for a new belt the deviation has to be 8 mm
for an old belt the deviation has to 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 bolt inhaling moment In: 35 N. of m.
the bolt inhaling moment With: 20 N. of m.
support bolt inhaling moment: 35 N. of m.