Front brake disc - inspection, removal and refitting
Note: Before starting work, refer to the warning at the beginning of Section 2 concerning the dangers of asbestos dust.
Inspection
1 Fully apply the handbrake then loosen the
front roadwheel bolts. Raise and support the
front of the vehicle on safety stands (see
“Jacking and Vehicle Support”) and remove
the roadwheel(s).
2 Examine the surface of the disc. If it is deeply grooved or scored or if any small cracks are evident, it must either be refinished or renewed. Any refinishing must not reduce the thickness of the disc to below a certain minimum (see “Specifications”). Light scoring on a brake disc is normal and should be ignored.
3 If disc distortion is suspected, the disc can be checked for run-out using a dial gauge or feeler blades located between its face and a fixed point as the disc is rotated (see illustration).
4.3 Checking brake disc run-out
A Steering tie-rod
B Dial gauge
support fixture
C Brake disc
D Dial gauge
4 Where the run-out exceeds the specified figure, renew the disc.
Removal
5 With the roadwheel removed (see paragraph
1), proceed as follows.
6 To remove a disc, unbolt the caliper anchor bracket, withdraw it and tie it up to the suspension strut to avoid strain on the flexible hose (if necessary, remove the brake pads as described in Section 2) (see illustration).
4.6 Caliper anchor bracket-to-hub carrier retaining bolts (arrowed)
7 Extract the small disc retaining screw and pull the disc from the hub (see illustration).
4.7 Brake disc retaining screw location (arrowed)
Refitting 8 If a new disc is being installed, clean its surface free from preservative.
9 Fit the disc and tighten the retaining screw.
10 Refit the caliper anchor bracket (and where applicable the brake pads - see Section 2), and the roadwheel and lower the vehicle to the floor.
See also:
Light laden valve (Van models) - adjustment, removal and
refitting
1 The light laden valve used on Van models is
a pressure regulating valve which reacts to
suspension height according to vehicle load.
The valve is mounted on the underside of the
vehicle above th ...
Steering column adjuster - dismantling and reassembly
Note: A new adjuster locknut and washer
must be used on reassembly.
Dismantling
1 To dismantle the adjuster assembly,
proceed as follows.
2 Remove the locknut and washer securing
the adjuster th ...
Door inner trim panel - removal and refitting
Front door
Models up to 1987
1 On models with manually-operated
windows, prise the cover from the window
regulator handle, note the position of the
handle with the window fully shut, then
remove ...