Opel Omega

since 1993-1999 release

Repair and operation of the car



Opel Omega
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Repair of engines
+ 4. Heating system and ventilation
+ 5. Fuel, exhaust systems
+ 6. System of start of the engine
+ 7. System of ignition
+ 8. Coupling
+ 9. Transmissions
+ 10. Main transfer, half shafts
- 11. Brake system
   11.1. Technical characteristics
   11.2. Brake overlays of forward brakes
   11.3. Brake overlays of back brakes
   11.4. Support of a forward brake
   11.5. Support of a back brake
   11.6. Brake disk
   11.7. Brake shoes of the emergency brake
   11.8. Rope of the emergency brake
   11.9. Lever of the emergency brake
   11:10. Main brake cylinder
   11:11. Tank of brake fluid and sensor of level of liquid
   11:12. Pumping of the brake system
   11:13. Hydraulic tubes and hoses
   11:14. Vacuum hose and valve of the vacuum amplifier of brakes
   11:15. Vacuum amplifier
   11:16. Brake pedal
   11:17. System of anti-blocking of brakes / protivobuksovochny system
+ 12. Suspension bracket and steering
+ 13. Body
+ 14. Body electric equipment








11.1. Technical characteristics

GENERAL INFORMATION

System type
Lobbies and back disk brakes, mobile forward supports, the fixed back supports, double hydraulic contour, the vacuum amplifier. ABS system. The Trosikovy drive of the emergency brake on back wheels.
Diameter of the vacuum amplifier
200/255 mm
Length of a rod of the piston of the vacuum amplifier
106 ± 0,5 mm
Amount of brake fluid
0,5 l
The brake pedal course before inclusion of fires of a stoplight
155 mm
Main brake cylinder, diameter
  – models till 1998 of release:
     • models with the 4-cylinder engine
23,81/20,64 mm
     • models with the 6-cylinder engine
25,40/20,64 mm
  – models since 1998 of release:
     • all models
25,40 mm
Forward brakes
Diameter of a brake disk:
  – models till 1998 of release:
     • models with the 4-cylinder engine
286 mm
     • models with the 6-cylinder engine
296 mm
  – models since 1998 of release:
     • all models
296 mm
Thickness of a new brake disk:
  – models till 1998 of release:
     • models with the 4-cylinder engine
24 mm
     • models with the 6-cylinder engine
28 mm
  – models since 1998 of release:
     • all models
28 mm
The minimum thickness of a brake disk after processing:
  – models till 1998 of release:
     • models with the 4-cylinder engine
22,5 mm
     • models with the 6-cylinder engine
26,5 mm
  – models since 1998 of release:
     • all models
26,5 mm
Minimum admissible thickness of a brake disk:
  – models till 1998 of release:
     • models with the 4-cylinder engine
21 mm
     • models with the 6-cylinder engine
25 mm
  – models since 1998 of release:
     • all models
25 mm
The maximum difference in disk thickness
0,01 mm
The most admissible beating of a disk
0,12 mm
The most admissible depth of scratches
0,4 mm
Thickness of brake slips:
  – new
17,50,6 mm
  – wear limit
8,0 mm
Diameter of the piston of a support:
  – models till 1998 of release:
     • models with the 4-cylinder engine
54 mm
     • models with the 6-cylinder engine
54 mm
  – models since 1998 of release:
     • all models
57 mm
Back brakes
Diameter of a brake disk (new)
286 mm
Thickness of a brake disk:
  – new
12,0 mm
  – a minimum (after processing)
11,0 mm
Wear limit
10,0 mm
The most admissible difference in disk thickness
0,01 mm
The most admissible beating
0,12 mm
Diameter of the piston of a support
40,0 mm
Thickness of brake slips:
  – new
17,0 mm
  – wear limit
6,0 mm
Minimum admissible thickness of frictional material of brake shoes of the emergency brake
1,0 mm
Diameter of the brake drum of the emergency brake:
  – new
160,0 mm
  – wear limit
161,0 mm

Moments of an inhaling, N. of m.

Fastening of an electronic control unit of ABS to the modulator
8
Fastening of the ABS modulator to a body
10
Fixing nuts of the modulator
8
Fixing screws of the ABS sensor
8
Lock screw of a brake disk
4
Nuts / bolts of connections of brake tubes
16
Fastening of an arm of a pedal of a brake to a body
20
Fastening of an axis of a pedal of a brake
18
Pumping valve
9
Bolt of connection of a brake hose on a support
40
Support fingers
30
Bolts of fastening of a fixing arm of a support to a rotary pin: *
  – stage 1
95
  – stage 2
Tighten on 30 – 45 °
Lever of the emergency brake
20
Forward fastening of the main brake cylinder
22
Fastening of the main brake cylinder to the vacuum amplifier
22
Fixing bolts of a support of a back brake
80
Bolts of fastening of wheels
110
Fastening of the vacuum amplifier
21

* Use new bolts.