Filter
Top Products
Overhaul
9 Pull off the dust excluders (see
illustration).
10 Extract the pistons, seals and return
spring; keeping each component identified for
location.
11 Check the surfaces of the cylinder bore
and pistons for scoring and corrosion and, if
evident, renew the complete wheel cylinder. If
the components are in good condition discard
the seals and obtain a repair kit which will
contain all the necessary renewable
components.
12 Clean the pistons and cylinder with
methylated spirit or clean brake fluid then dip
each component in fresh brake fluid and
reassemble in reverse order; making sure that
the lips of the seals face into the cylinder.
When completed, wipe clean the outer
surfaces of the dust excluders.
Refitting
13 Clean the backplate and refit the wheel
cylinder using a reversal of the removal
procedure. Refer to Section 11 when refitting
the hub/drum.
14 Make sure that the brake hose clamp or
polythene sheeting is removed then bleed the
hydraulic system, as described in Section 2.
11 Rear brake hub/drum -
removal, inspection and
refitting
2
Note: Before starting work, refer to the
warning at the beginning of Section 5
concerning the dangers of asbestos dust.
Removal
1 Chock the front wheels then jack up the
rear of the car and support it on axle stands
(see “Jacking and vehicle support”). Remove
the rear roadwheels and ensure that the
handbrake is released.
2 Tap off the grease cap, taking care not to
damage its outer lip, then relieve the staking
on the rear hub nut, using a suitable drift or
chisel. Unscrew the nut and recover the
washer (see illustrations). Should the stub
axle rotate within the trailing arm, hold it
stationary with a suitable Allen key on the
inner. Note that a new rear hub nut will be
required for refitting.
3 Withdraw the hub/drum from the stub axle.
If difficulty is experienced, due to the shoes
wearing grooves in the drum, insert a
screwdriver through one of the wheel bolt
holes and depress the handbrake lever on the
rear brake shoe so that it slides back behind
the shoe. This will retract the shoes and allow
the hub/drum to be removed.
Braking system 9•11
9
10.7 Rear wheel cylinder mounting bolts (arrowed) 10.9 Exploded view of a rear wheel cylinder
1 Cap
2 Bleed screw
3 Dust excluder
4 Piston
5 Seal
6 Spring seat
7 Spring
8 Body
11.2a Unscrew the rear hub nut . . . 11.2b . . . and remove the washer