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
+ 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
   15.2. General information
   15.3. Anti-blocking system of brakes (ABS)
   15.4. Pumping of hydraulic brake system
   + 15.5. Replacement of forward brake shoes
   15.6. Replacement of back brake shoes on disk brakes
   + 15.7. Replacement of back brake shoes on drum-type brakes
   15.8. Replacement of brake shoes of the hand brake on back disk brakes
   15.9. Support of a forward brake
   15.10. Support of a back disk brake
   15.11. Brake disk
   15.12. Forward brake disk
   15.13. A back brake disk on models with SOHC engines
   15.14. A back brake disk on models with DOHC engines
   15.15. Brake drum
   15.16. Back working brake cylinder
   15.17. Brake board of a back brake
   15.18. Protective casing of a forward brake disk
   15.19. Main brake cylinder
   15.20. Repair of the main brake cylinder (model without ABS)
   15.21. Vacuum amplifier of brakes
   15.22. Hydraulic ABS modulator
   15.23. The ABS sensors established on wheels
   15.24. ABS control unit
   15.25. ABS relay (only ABS-2E system)
   15.26. Valves of adjustment of pressure
   15.27. Brake pipelines and hoses
   15.28. Adjustment of the hand brake
   + 15.29. Cable of the hand brake
   15.30. Lever of the hand brake
   15.31. Brake pedal
+ 16. Suspension bracket
+ 17. Body
+ 18. Electric equipment
+ 19. Check of malfunctions



15.26. Valves of adjustment of pressure

GENERAL INFORMATION

Prevention

Replacement of valves of adjustment of pressure is necessary for making at the same time, thus both valves should be identical (marking of the valve is put on the valve case).


THE VALVES ESTABLISHED ON THE MAIN BRAKE CYLINDER

Removal

PERFORMANCE ORDER
1. For reduction of losses of brake liquid uncover a popolnitelny tank of brake system, close a tank mouth polyethylene and again screw a cover. It is necessary in order that the cover tightly closed a popolnitelny tank.
2. Establish the corresponding container under the main brake cylinder that at unscrewing of valves to collect the flowed-out brake liquid.
3. Mark brake tubes, then unscrew connecting nuts and disconnect brake tubes from valves of adjustment of pressure. Close the ends of tubes suitable jams.
4. Unscrew valves of adjustment of pressure from the main brake cylinder and close openings in the main brake cylinder suitable jams.

Installation

PERFORMANCE ORDER
1. Installation is made in sequence, return to removal.
2. Remove polyethylene from a jellied mouth of a popolnitelny tank and pump over hydraulic brake system.

THE VALVES ESTABLISHED IN THE BACK PART OF THE BOTTOM OF THE CAR

Removal

Arrangement of the valve of adjustment of pressure in a back part of the bottom of the car on models with DOHC engines
1–valve of adjustment of pressure;
2–bracket of fastening of the valve

PERFORMANCE ORDER
1. For reduction of losses of brake liquid uncover a popolnitelny tank of brake system, close a tank mouth polyethylene and again screw a cover. It is necessary in order that the cover tightly closed a popolnitelny tank.
2. Lift a back part of the car and fix on supports.
3. Under a back part of the car unscrew a connecting nut and disconnect a brake tube from the valve of adjustment of pressure. Close the end of a brake tube a suitable stopper.
4. Similarly disconnect from the valve a flexible brake hose.
5. Take a bracket, fixing the valve of adjustment of pressure to an arm, and remove the valve of adjustment of pressure. On some models on a bracket, adjustment of pressure fixing the valve the ABS sensor wire (see drawing) is fixed.
6. Similarly remove the second valve of adjustment of pressure.

Installation

PERFORMANCE ORDER
1. Installation is made in sequence, return to removal.
2. Remove polyethylene from a jellied mouth of a popolnitelny tank and pump over hydraulic brake system.