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
   Check of level of cooling liquid
   Frost resistance check
   Check of system of cooling on tightness
   Radiator
   Carving cover of a broad tank
   Thermostat
   List of malfunctions
   Water pump
   Maple belt of the water pump
   Fan of system of cooling
   Malfunctions of the fan of system of cooling
   List of malfunctions
+ Fuel tank and fuel pump
+ Air filter and airintaking channels
+ injection System
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ 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





Water pump

The water pump (1) of the 4-cylinder engine is located at the left ahead on the engine. The position (2) shows a cover of the case of the thermostat, shooters point to covers of the bearing of the water pump some of fixing bolts.

The water pump (shooter) of the 5-cylinder engine is located on the engine ahead and is brought by a gear belt.

The water pump (shooter) of the 6-cylinder engine is located on a forward part of the block of cylinders. It is given by a return surface of a gear belt.

In order that cooling liquid could circulate in cooling system, it is accelerated by the water pump. It is put in action differently, depending on engine type:

  • At models with the 4-cylinder engine the pump is located in the movement direction ahead to the left of the engine and is actuated by a maple belt.
  • At models with the 5-cylinder engine the pump is located too ahead at the left, however it is actuated by a gear belt.
  • The pump of the 6-cylinder engine is actuated by an external lateral surface of a gear belt.
    During all service life the water pump does not need service. If it becomes not tight or makes whistling sounds, it is necessary to replace it simply as it is not subject to repair.

Removal of the water pump

It is required to you or new sealing laying (4-and 6-cylinder engines) or a new sealing ring (the 5-cylinder engine).

The owner of the car with the 4-cylinder engine, the buying new water pump, receives the pump assembled with the case (a back part of the case with the pump). Pumps for the 5-cylinder engine can be distinguished on beaten-out number 5 in the field of sealing laying of a flange – should be completed with a sealing ring with an allowance in diameter of 5 mm.

 PERFORMANCE ORDER

  1. At work with the 4-cylinder engine at first to remove maple a belt.
  2. To remove a protective casing of a gear belt (head Engines).
  3. To weaken in total seven screws between the forward case of the bearing and the case of the water pump. The wheel of the pump is located in the bearing case.
  4. To replace laying between the case of the bearing and the case of the water pump.
  5. In a case when the case of the water pump entirely (use of the spare part) acts in film, at installation as sealing laying between the case and the block of cylinders should be replaced.
  6. To twirl the bearing case the moment of 10 N • m, to tighten tightening bolts of a pulley of klinoremenny transfer the moment of 25 N • m.
  7. At work with the 5-cylinder engine it is impossible to call removal of the water pump simple work:
  8. At first it is necessary to remove the pump of the amplifier of a steering together with a maple belt.
  9. To remove a protective casing of a gear belt (head Engines).
  10. To weaken a gear belt and to remove it from a gear wheel of the water pump.
  11. To turn out tightening bolts of the water pump, to remove the pump.
  12. To establish the new pump with a new sealing ring.
  13. To tighten tightening bolts of the water pump the moment of 20 N • m.
  14. To put on a gear belt, it is obligatory to check gazoraspredeleniye phases (head Engines).
  15. To pull a gear belt.
  16. Other assembly passes without problems.
  17. At work with the 6-cylinder engine removal of the water pump by own forces again rests against removal of a gear belt.
  18. To remove poliklinovy a belt (head the Generator).
  19. To remove a gear belt (head Engines).
  20. To weaken nine bolts in front on the case of the water pump, to remove the case
  21. At installation to replace sealing laying, to tighten bolts for two calling, the last the moment of 10 N • m.
  22. To put on a gear belt, it is obligatory to check gazoraspredeleniye phases (head Engines).