Vacuum servo unit and linkage - removal and refitting
Removal
1 Refer to Section 12 and remove the master
cylinder.
2 On fuel-injection models unclip and lift out the front section of the heater plenum chamber to provide access to the connecting linkage across the lower bulkhead (see illustration).
16.2 Heater plenum chamber removal
3 Working inside the vehicle, remove the spring clip which attaches the pushrod to the arm of the brake pedal.
4 Unscrew the nuts which hold the servo to its mounting bracket, also the servo support brace to the body.
5 Disconnect the valve hose from the servo.
6 Detach the linkage arm spring at the rear of the servo and then pull the servo forward until the servo operating rod can be unclipped from the linkage.
7 Remove the servo from the vehicle. It must be renewed if defective, no repair is possible.
8 If necessary, the rest of the servo operating linkage can be removed from under the instrument panel once the covering and cowl side trim have been removed from above the brake pedal inside the vehicle. Unbolt the connecting link bracket from the driver’s side (see illustrations).
16.8a Vacuum servo unit connecting linkage
A Grommet
B Connecting link
C Bush
16.8b Vacuum servo unit connecting link bracket on driver’s side
Refitting 9 Refitting is the reverse sequence to removal. Refit the master cylinder as described in Section 12 and bleed the hydraulic system as described in Sections 11 or 23 as applicable.
See also:
Cylinder head - removal and refitting
Removal
Note: On HCS engines, cylinder head bolts
may be used a total of three times (including
initial fit) and must be suitably marked to
indicate each removal operation. A new
cylinder head ga ...
Braking system warning lamps and electrical switches - removal
and refitting
General
1 All models are fitted with a low fluid level
warning switch in the master cylinder reservoir
cap and a brake pedal stop-lamp switch.
2 Some versions have front disc pad wear
sensors and ...
Steering and suspension security check (Every 12 000 miles (20 000 km) or 12
months)
1 Check the shock absorbers by bouncing
the vehicle up and down at each corner in
turn. When released, it should come to rest
within one complete oscillation. Continued
movement, or squeaking and ...