MG MGB User Manual

THE
WHEELS AND
TYRES
0
/
g/
a
Fig. 0.3
Removing
a
road
wheel (disc
type)
Section
0.3
REMOVING AND
REPLACING
ROAD WHEELS
Disc
wheels
1.
Insert
the hub
cover
lever
in
the
recess
adjacent
to
the
hub
cover
retaining
studs and
give
it
a
sideways
twist.
2.
Remove
the four
nuts
securing
the road
wheels
to
the
hub. The wheel
nuts
have right-hand threads.
3.
Lift the road
wheel from
the studs.
Reverse
this
procedure
when replacing
the
road
wheel
and
ensure
that
the
nuts
are
refitted
with their tapered side
towards the
wheel.
Tighten the
nuts to
a
torque
■gure
of between 60
and
62.5
lb.
ft.
(8.3
and
8.65 kg.
m.).
Do
not
overtighten.
To
refit the hub disc
place the
rim
of the disc
over
two
of
the buttons
on
the wheel
centre
and
give
the disc
a
sharp
blow
with the fist
over
the
third button.
Wire
wheels
Use
a
copper
mallet
to
slacken
the winged hub
nut
securing
the wheel
to
the
splines
on
the hub
extension.
The hub
nuts
on
the left-hand side
of
the
car
have right-hand
threads
(unscrew
anti-clockwise)
and
the
nuts
on
the right-hand
side
of
the
car
have
left-hand
threads
(unscrew clockwise).
Section
0.4
VALVES
Valve
caps,
in
addition
to
preventing
dirt
from
entering
the
valve, form
a
secondary
air
seal and should always
be
fitted.
The valves
may
be
tested
for airtightness by
rotating
the
wheel until the
valve
is
at
the
top
and
inserting its
end
in
an
eggcup
full of
water.
If bubbles
appear
the
seating is
faulty
and should be
removed
and
a
new one
■tted. It
is
advisable
to
change the valve
interiors
every
12
months.
Section 0.5
TYRE
REMOVAL
Remove
all valve
parts to
de■ate the
tyre
completely, and
push both edges
into
the
base
of the
rim
at
a
point
diametrically
opposite
the valve. Lever the
cover
edge,
near
the valve,
over
the
rim
of the wheel,
using
two
levers
at
intervals of 6
in.
(15 cm.)
apart.
NOTE—Do
not attempt to
stretch the
edges
of the
tyre
cover over
the
rim
edge.
Force
is
entirely
unnecessary
and
is
detrimental,
as
it
tends
to
damage the wired edges.
Fitting
or
removing is
quite
easy
if the
tyre
edges
are
carefully adjusted
into
the
rim
base; if
found
difficult, the
operation is
not
being performed
correctly.
Remove
the tube
carefully; do
not
pull
on
the valve. Stand
the
tyre
and wheel upright, keeping
the bead
on
the
base
of
the
rim.
Lever the bead
over
the
rim
■ange and
at
the
same
time
push the wheel
away
from the
cover
with the other
hand.
Section
0.6
INSPECTION OF
WHEELS AND TYRES
In addition
to
a
visual examination
a
detailed
inspection
of
wheels and
tyres
may
be
carried
out
where
a
specialist and
the
necessary
specialist
equipment is
available for this
purpose.
Disc
wheels
1.
Clean the
wheel
rim
with
a
wire
brush and
remove
all
traces
of
corrosion.
2.
Examine the
rim
and the welds
or
rivets
securing
the
rim
to
the wheel
centre.
Damage
to
the
rim
may
be
repaired
provided
it is
slight
and
is
confined
to
the
■ange
tip
area.
Fig.
0.4
Removing
a
road
wheel
(wire type)
0.3

MG MGB Specifications

General

Brand	MG
Model	MGB
Category	Automobile
Language	English