Wheels
and
'Tyres
TYRES
Tyre
ma
rki
ngs
Max.
load and inflation figures. Tyres are marked with the maximum load and
inflation pressure figures. When fitting replacement tyres ensure that they are
to the same specification
and
marking. The permissible load and tyre pressures
are shown on page 73 of this handbook.
Wear indicator. Tyres fitted as original equipment have wear indicators incor-
porated in their tread pattern. When the tyre tread has worn down until 0·06 in
(1'5 mm) of the tread is remaining the wear indicator
bar
will appear across the
full width of the tread pattern.
Tyre
Tyres, including the spare, must be maintained at the pressures recommended
maintenance
(see 'GENERAL DATA'); check with an accurate tyre gauge at least once a
week,
and
regulate as necessary. Pressures should be checked when the tyres are
cold; do not reduce the pressure in warm tyres where the increase above the
normal pressure is due to temperature. See that the valve caps are screwed down
firmly by hand. The cap prevents the entry of dirt into the valve mechanism and
forms an additional seal on the valve, preventing any leakage if the valve core is
damaged. The spare wheel supplied with new cars is inflated above the recom-
mended running pressure. The pressure must be checked and adjusted before use.
Excessive local distortion can cause the casing of a tyre to fracture and may lead
to premature tyre failure. Tyres should be examined regularly, especially for
cracked walls, exposed cords, etc. Flints and other sharp objects should be
removed from the tyre tread; if neglected, they may work through the cover.
Any oil or grease which may get onto the tyres should be cleaned off by using
fuel sparingly.
Do
not use paraffin (kerosene), which has a detrimental effect on
rubber.
Tubeless tyres Normally a tubeless tyre will not leak as a result of penetration by a nail or other
puncturing object, provided
that
it is left in the tyre. At a convenient time have
the tyre removed for vulcanizing.
If
a small diameter puncture has been made a
temporary repair can be carried out with the tyre manufacturer's plugging kit .
NOTE:
The insertion of a plug to repair a puncture in a tubeless tyre must be
regarded as a temporary measure and a permanent vulcanized repair must be made
as soon as
possible; In no circumstances should a plug repair be made to the
side wall of a tyre.
BRAKES
AND
MASTER
CYLI'NDERS
Brake
and
The level of the fluid in the brake master cylinder reservoir is visible through the
clutch
master
plastic reservoir (1); the level must be maintained up to the position marked (2)
cylinder
on the side of the reservoir.
Fig. 1
To check the level of the fluid in the clutch master cylinder reservoir (3), remove
the plastic filler cap. The fluid level must be maintained at the
bottom
of the filler
neck.
Use only Lockheed Universal Brake Fluid (Series 329S) or Castro" Girling Brake
Fluid; alternatively, use a brake fluid conforming to F.M.V.S.S. 116
D.O
.T.3
specification with a minimum boiling-point of 260° C (500°F). Before refitting the
filler caps check that the breather holes (indicated by the arrows) in the caps are
clear. The centre disc (4) of the brake reservoir cap may be removed for cleaning.
Brake
pedal
A free movement of t in (3'2 mm) (A), measured at the pedal pad must be
Fig. ·2 maintained on the pedal. To adjust the free movement, slacken the stop light
switch locknut
(1) and turn the switch (2) clockwise to decrease or anti-clockwise
to increase the clearance. Tighten the stop light switch locknut.
The instructions gi 'en for
the
temporary repair of tubeless tyres must be dis-
regarded when tubes are fitted. If in any doubt, consult your authorized Austin
regarueu
as
a
tempo
rary
measure
anu
a
permanent
vuicamzeu
repair
must
De
mau
e
as soon as possible. In no circumstances should a plug repair be made to the
side wall of a tyre.
Fig. 1
Fig. 2
The instructions gi 'en for
the
temporary repair of tubeless tyres must be dis-
regarded when tubes are fitted. If in any doubt, consult your authorized Austin
MG
Dealer.
Tu bes When repairing tubes, have punctures or injuries vulcanised. Ordinary patches
should only be used for emergencies. Vulcanising is absolutely essential for tubes
manufactured from synthetic rubber.
:
Replacement
Radial-ply tyres are standard equipment and replacements must be of the radial-
ply type.
Wheel
and
tyre
Unbalanced wheel and tyre assemblies may be
responsibl~~
for.
a~n~rm~l
~~
~
Fig. 1
Fig. 2
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