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Brakes and Master Cylinders
Front brakes
Adjustment
of the disc
brakes
to compensate for
friction
pad wear is
automatic
Fig. 3 and manual adjustment is therefore not
required.
Before the lining
material
(arrowed) has worn down to the minimum permissible thickness of
-rlr
in
(1·6
mm)
or will have done so before the next inspection is due, the brake pads must
be
renewed. Special equipment is required, and new pads should be fitted by
an
authorized Austin MG Dealer.
Rear brakes
Excessive brake pedal travel is an indication that the rear brake-shoes
require
adjusting. The brakes on both rear wheels must be adjusted to regain even
and
efficient braking.
Adjusting Block the front wheels, fully release the hand brake and jack up each rear
wheel
Fig. 4
in turn. Turn the adjuster (1) in a clockwise direction (viewed from the
centre
of the car) until the wheel is locked, then turn the adjuster back until the
wheel
is free to rotate without the shoes rubbing. Repeat the adjustment on the
other
rear brake.
Inspecting
Block the front wheels, release the hand brake, and jack up each rear wheel
in
rear brake
turn. Remove the road wheel and slacken off the brake-shoe adjuster
fully.
linings
Remove the two countersunk screws (pressed wheels) or the four nuts
(wire
wheels) and withdraw the brake-drum.
Inspect the
linings
for wear, and clean out the dust from the backplate
assembly
and drum.
Refit the drum
and
road wheel and adjust the brake-shoes.
Hand brake
The hand brake is
automatically
adjusted with the rea
r brakes.
If there is
excessive
movement of the hand brake lever, consult your
authorized Austin
MG
Dealer.
Preventive
In
addition
to the recommended
periodical
inspec
tion of brake
components
it
maintenance
is advisable as the car ages, and as a
precaution
against the
effects of wear and
deterioration, to make a more searching inspection and renew
parts as
necessary.
It is recommended that:
(1) Disc brake pads, drum brake linings
,
hoses, and pipes should be
exa
mined
at intervals no greater than those laid down in the Maintenance
Summary.
(2) Under normal operating conditions brake fluid should be changed com
pletely
every 18 months
or
19,000 miles
whichever
is the
sooner.
(3) All fluid seals in the hydraulic system and all flexible hoses should be renewe
d
every 3
years or 37,500
miles whicheve
r
is the sooner. At the same time
the
working surface of
the
pisto
n
and of the bores of the master
cylinde r, wheel
cylinders,
and
ot
her
slave
cylinders should be
exam
ined
and new parts
fitted
where
necessary.
Care must be
taken always
to observe the following points :
(a)
At all times
use the
recommended
brake fluid.
(b)
Neverleave fluid
in unsealed
containers.
It absorbs
moisture quickly and
can be
dangero us if used in th
e braking system
in this
condition.
(c)
Fluid drained
from
the
system
or used
for
bleeding
is best
discarded.
(d)
The
necessity
for
absolute clean
lines
throughout
cannot be
over-
emphasized.
Replacing
brake-shoes
or pads
When it becomes necessary to renew the brake-shoes or pads it is essential th
at
only genuine shoes or pads, with the correct grade of lining, are used. Alwa
ys
fit new shoes or pads as complete axle sets, never individually or as a
single
wheel set. Serious consequences could result from out-of-balance braking due
to
mixing of linings.
Replacement brake-shoes or pads are obtainable from your authorized
Austin
MG Dealer.
Fig. 3
Fig. 4
1
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Fig. 3
~/ MGb~r.
II
6 '
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Fig. 4
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