Opel Vectra A

since 1988-1995 of release

Repair and car operation



Vektr A. Opel
+ 1. Maintenance instruction
+ 1.1 Maintenance
+ 2. Engine
+ 3. Repair of DOHC engines
+ 4. Repair of the diesel engine
+ 5. Cooling system
- 6. Fuel system
   6.2. General information
   6.3. Air filter
   6.4. The block of adjustment of temperature of air arriving in the engine
   6.5. Check of the fuel pump
   6.6. Removal and installation of the fuel pump
   6.7. Fuel tank
   6.8. Fuel level sensor
   6.9. Separator паров fuels (l model 1,6 and 1,8)
   6.10. Accelerator pedal
   6.11. Accelerator cable
   6.12. Carburetor
   6.13. Removal and carburetor installation
   6.14. Adjustment of turns of idling and the contents WITH
   6.15. Needle and float
   6.16. Vacuum diaphragm of a butterfly valve of the secondary chamber
   6.17. Diaphragm of an ekonomayzer
   6.18. Accelerating pump
   6.19. Knot of an air automatic zaslonka
   + 6.20. Vacuum blocks of moving of an air automatic zaslonka
   6.21. Carburetor filter
   6.22. Adjustment of the shock-absorber of a butterfly valve
   6.23. Sensor of provision of a butterfly valve (an automatic transmission)
   6.24. Check of the valve of increase in turns of idling
   6.25. The electromagnetic valve of idling on models of 1,8 l
   6.26. Inlet collector
+ 7. A fuel and exhaust system of models with system of injection of fuel
+ 8. Exhaust system and system of fall of toxicity of exhaust gases
+ 9. Fuel systems of the diesel engine
+ 10. Engine electrosystems
+ 11. Transmission
+ 12. Mechanical transmission
+ 13. Automatic transmission
+ 14. Power shafts
+ 15. Brake system
+ 16. Suspension bracket
+ 17. Body
+ 18. Electric equipment
+ 19. Check of malfunctions



6.12. Carburetor

GENERAL INFORMATION

Arrangement of the accelerating pump (1) and diafragmenny block of moving of the main zaslonka (2)

Arrangement of the case of an automatic air zaslonka (1), separator паров fuel (2) and vacuum diaphragm of a secondary butterfly valve (3)

Winding of moving of a secondary zaslonka (1) and valve of an ekonomayzer (2)

The PIERBURG 2Е3 carburetor – two-chamber with tarirovanny jets and the butterfly valves opening consistently. The butterfly valve of the secondary chamber opens only at high turns of the engine under loading. Consecutive opening of butterfly valves provides high economy of fuel at smooth acceleration and uniform movement, and also provides the maximum engine capacity by full pressing of a pedal of an accelerator. Management of a secondary zaslonka is made by vacuum in the primary chamber. Diameters of elements of the primary chamber of the carburetor it is less, than secondary. The carburetor is a difficult unit in which there are many systems for providing operational modes of the engine (see fig. Arrangement of the accelerating pump and diafragmenny block of moving of the main zaslonka, Arrangement of the case of an automatic air zaslonka, separator паров fuel and vacuum diaphragm of a secondary butterfly valve, Winding of moving of a secondary zaslonka and valve of an ekonomayzer).

The system of idling of the carburetor works irrespective of other systems and copes the screw of adjustment of quality of a mix.

Calibration of the main jets is made so that the engine worked normally at a half-open butterfly valve. For ensuring giving of demanded amount of fuel at the maximum acceleration the vacuum valve of an ekonomayzer is used. The valve submits additional amount of fuel at the maximum depression at completely open butterfly valves.

For increase in supply of fuel at acceleration the accelerating pump submits additional fuel to the main diffuzor of the primary chamber. Management of the accelerating pump is made mechanically by a cam from draft of a butterfly valve.

For management of the provision of an air zaslonka the automatic mechanism, coping is used by being cooled liquid and a lichesky spring heating up bimetal. On cold двигате the bimetallic spring is completely compressed by le and holds a zaslonka in the primary chamber in a closed position. In process of engine warming up the bimetallic spring extends and opens an air zaslonka of the first chamber. Giving of vacuum copes moving system. Thus if the engine works with slightly slightly opened zaslonka at uniform movement of the car under small loading a zaslonka is slightly opened also protivody ствует to a bimetallic spring. The system of moving excludes pereobogashche scientific research institute of a fuel mix. The secondary winding of system of moving is used together with the main block of a diaphragm for change of characteristics of system of moving for increase in economy of fuel.

On engines of 1,8 l there is an otsechka valve. It is the electromagnetic valve which blocks giving of a fuel mix in idling system at ignition switching off.