Fig.
MA
A section through the brake master cylinder
M
16
5 6 7
4
12. Piston washer.
13. Main cup.
14. Spring retainer.
15. Return spring.
16.
Non-return valve.
14 1513
12
3
7.
End
plug.
8.
Circlip.
9. Stop washer.
10. Secondary cup.
11. Piston.
9
THE
BRAKING SYSTEM
2
1.
Push-rod.
2. Rubber boot.
3.
Mounting flange.
4. Supply tank.
5. Body.
6.
Washer.
•
Refitting (front and rear) :
Reverse the removing instructiAns.
(9) Refit the spring, press
it
down
and
insert the split
pins.
(10) Press the pedal several
times~'to
adjust.t~e
brakes.
•
COOPER
Removing disc brake friction pads
(1) Jack up, remove the wheel.
(2) Depress the
pad
retaining spring and withdraw the
split pins (Fig. M.6). .
(3) Remove the spring and withdraw the pads from the
calliper.
(4) Thoroughly clean the exposed face
of
each piston
and
the-recesses in the calliper.
On
later cars the pads are retained in the callipers by
means
of
split pins only.
The
pi~s
pass through the
calliper body
and
the pads,
and
no pad retaining springs
are fitted.
To
remove the pads,
it
is only necessary
to
remove the split pins and extract the
'pads
with a direct
pull. Pads for the earlier- and later-type callipers are
NOT
INTERCHANGEABLE.
Section M.4
WHEEL
CYLINDERS
Removing front and
rear
(1) Carry
out
instructions (1), (2),
and
(3) in Section
M.3.
(2) Thoroughly clean the
bac~~late.
(3) Disconnect the flexible hose.
(4) Unscrew and remove the bleed screw.
(5) Remove the circlip
and
dished washer from the
cylinder boss protruding through the backplate
and withdraw the cylinder.
•
Refitting
(5) Press the pistons back into the calliper with Service
tool18G
672.
(6) Check
that
the cut-away edge
of
each piston is
facing upwards and
that
anti-squeak shims are
correctly placed.
(7) Insert the new pads and check
that
they move
easily
in
the calliper.
(8) Remove any high spots from the pressure plate by
careful filing.
MINI. Issue
1.
4908
COOPER
Removing (rear only)
As instructions (1)
to
(5) above.
Dismantling
(6) Remove the dust seals from the ends
of
the cylinder
and
extract
both
pistons.
(7) Remove the piston seals with the fingers only.
(8)
Clean all parts with brake fluid.
M.3
mk1-performance-conversions.co.uk
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