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
+ 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
   15.2. General information
   15.3. Anti-blocking system of brakes (ABS)
   15.4. Pumping of the hydraulic brake system
   + 15.5. Replacement of front brake shoes
   15.6. Replacement of back brake shoes on disk brakes
   + 15.7. Replacement of back brake shoes on drum brakes
   15.8. Replacement of brake shoes of the emergency 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. Protection cover 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 installed 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 emergency brake
   + 15:29. Cable of the emergency brake
   15:30. Lever of the emergency brake
   15:31. Brake pedal
+ 16. Suspension bracket
+ 17. Body
+ 18. Electric equipment
+ 19. Check of malfunctions
. .



BRAKE SYSTEM

15. Brake system

15.1. Technical characteristic

System type
Models without ABS:
– l models 1,4, 1,6 and 1,8

Forward brakes disk, and back drum, with the vacuum amplifier, with the hydraulic drive and diagonal division of contours and the regulator of pressure upon back wheels. The drive of the emergency brake on back wheels
– models of 2,0 l
Forward and back brakes disk, with the vacuum amplifier, with the hydraulic drive and diagonal division of contours and the regulator of pressure upon back wheels. The drive of the emergency brake on back wheels
All models with anti-blocking system of brakes (ABS)
Forward and back brakes disk, with the vacuum amplifier, with the drive the hydraulic modulator with forward and back contours and the regulator of pressure in a back contour. The drive of the emergency brake on back wheels

Forward brake disks

Type:
– 1,4, 1,6 and 1,8 l
Continuous or ventilated (with 10/91)
– models of 2,0 l
Ventilated
Diameter of a disk:
– model 1,4, 1,6 and early 1,8 l
236 mm
– late models (with 10/91) 1,8 and 2,0 l
256 mm
The most admissible beating of a brake disk
0,1 mm
Minimum admissible thickness of a brake shoe (together with the metal basis):
– all models
7,0 mm
Minimum admissible thickness of a brake disk after a repoint (*):
– l models 1,4, 1,6 and 1,8 (with continuous disks)
10,7 mm
– l models 1,4, 1,6 and 1,8 (with the ventilated disks)
18,0 mm
– models of 2,0 l
22,0 mm

* If wear of disks reached minimum admissible thickness, use only of one set of brake shoes then disks are subject to replacement is allowed.

Back brake disks

Type continuous
Diameter (all models)
260 mm
The most admissible beating of a brake disk (all models)
0,1 mm
Minimum admissible thickness of a brake shoe (together with the metal basis):
– all models
7,0 mm
Minimum admissible thickness of a brake disk after a repoint (all models) *
8,0 mm
Minimum admissible thickness of an overlay of a brake shoe of the emergency brake:
– all models
1,0 mm

* If wear of disks reached minimum admissible thickness, use only of one set of brake shoes then disks are subject to replacement is allowed.

Back brake drums

Internal diameter of a drum (all models)
200 mm
Minimum admissible thickness of an overlay of a brake shoe (all models)
0,5 mm over heads of rivets

Tightening moments

Fastening of the hydraulic ABS modulator
8 Nanometer
Fastening of the ABS sensor installed on a wheel
8 Nanometer
ABS control unit
1,5 Nanometer
Connection of tubes of the brake system
16 Nanometer
Support and unions of pumping
9 Nanometer
Screw of fastening of a forward brake disk
4 Nanometer
Brake hose to a support of a forward brake
40 Nanometer
The holder of a support of a forward brake to a rotary fist
95 Nanometer
Guide of a support of a forward brake
30 Nanometer
Fastening of a support of a forward brake (model with continuous disks)
95 Nanometer
Fastening of a support of a forward brake to the holder of a support (model with the ventilated disks)
30 Nanometer
Fastening of the lever of the emergency brake
20 Nanometer
Fastening of the main brake cylinder
22 Nanometer
Lock screw of the main brake cylinder (ATF)
6 Nanometer
The valve of adjustment of pressure to the main brake cylinder:
– ATF type
12 Nanometer
– GMF type
40 Nanometer
Brake board / fastener of a nave of a back wheel:
– stage 1
50 Nanometer
– stage 2
To tighten on a corner 30 °
– stage 3
To tighten on a corner 15 °
Screw of fastening of a back brake disk
8 Nanometer
Fastening of a support of a back disk brake
80 Nanometer
Screw of fastening of the back brake drum
4 Nanometer
Fastening of the working brake cylinder of a back wheel
9 Nanometer
Fastening of an arm of the vacuum amplifier of brakes to a partition of a motor compartment
22 Nanometer
Fastening of the vacuum amplifier of brakes to an arm
20 Nanometer