Opel Vectra A

since 1988-1995 release

Repair and operation of the car

Vektr's Opel And
+ 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 the air coming to 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 of vapors of fuel (l models 1,6 and 1,8)
   6.10. Accelerator pedal
   6.11. Accelerator cable
   6.12. Carburetor
   6.13. Removal and installation of the carburetor
   6.14. Adjustment of turns of idling and contents WITH
   6.15. Needle and float
   6.16. Vacuum diaphragm of a butterfly valve of the secondary camera
   6.17. Economizer diaphragm
   6.18. Accelerating pump
   6.19. Knot of the air automatic gate
   - 6.20. Vacuum blocks of movement of the air automatic gate
      6.20.2. Vacuum movement
      6.20.3. Solenoid of secondary movement
   6.21. Carburetor filter
   6.22. Adjustment of the shock-absorber of a butterfly valve
   6.23. Sensor of provision of a butterfly valve (automatic transmission)
   6.24. Valve check of increase in turns of idling
   6.25. The electromagnetic valve of idling on models of 1,8 l
   6.26. Inlet collector
+ 7. The fuel and exhaust system of models with system of injection of fuel
+ 8. Exhaust system and system of decrease in toxicity of exhaust gases
+ 9. Fuel systems of the diesel engine
+ 10. Engine electrical systems
+ 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

6.20. Vacuum blocks of movement of the air automatic gate

6.20.1. Main diaphragm block


At installation of the diaphragm block it is necessary to use a new star-shaped bracket.


1. Remove a weight wire from the accumulator.
2. On early models remove the air filter. On later models disconnect the air duct from the air filter, then disconnect a vacuum pipe and a hose of ventilation of a case from an air chamber. Unscrew three screws and remove an air chamber together with an air duct.
3. Disconnect vacuum hoses from the main diaphragm block.
4. Using a drift, beat out цилиндричес a cue a pin, the fixing main diaphragm block to the top cover of the carburetor.
5. Note the provision of adjusting tags of a bimetallic casing, and at their absence put tags which need to be used for installation simplification. Unscrew three screws and remove a bimetallic casing. Move a casing aside, at the same time do not deform hoses of supply of cooling liquid and an electrical wiring of a heater of the gate.
6. Unscrew three screws fixing gate knot to the case of the carburetor and lower gate knot down, without disconnecting draft of the gate.
7. Remove the star-shaped bracket fixing the main diaphragm block to a cover of the carburetor and remove the main diaphragm block.


1. Installation is made in the sequence, the return to removal. At ustan ке use a new star-shaped bracket of fastening of the main diaphragm block. Before installation of an air chamber check for the top part of the carburetor, and if necessary, adjust vacuum movement.