MG MGB User Manual

THE
WHEELS
AND
TYRES
Fig. 0.5
The
tyres
have
wired
edgesand
no
attempt
must
be made
to
stretch them. If
the
cover
■ts
tightly
on
the
rim seating
it
should
be
freed
by using the
tyre
levers
as
indicated
3.
Inspect the
wheel
centre
for
■aws,
cracks,
or
fractures.
4. Check
the wheel
wobble.
This
is
the
lateral
variation
measured
on
the
inside
vertical face
of
the ■ange
and
should
not
exceed 0.55
in.
(1.4
mm.).
An additional
.015
in
(.38
mm.)
is permissible
at
the
welded
joint.
5. Check
the wheel
lift.
This
is
the
difference
in
height
between
the high
and low
points
measured
at
any
location
on
either
tyre
seat
on
a
truly
mounted
and
revolving wheel.-
The
difference
should
not
exceed
.055
in.
(1.4
mm.).
An
additional
.015
in.
(.38
mm.)
is
permissible
at
the
welded
joint.
Wire wheels
1. Examine
the wheel
as
in
1 and
2
above.
2.
Check
the
spokes and
nipples for
security
and damage.
Any
unserviceable
parts
must
be
renewed.
3. Examine
the splines
in
the
wheel
centre
for
wear.
If
the
splines
are
worn renew
the
hub
centre.
Tyres
Examine
all
tyres
internally
and
externally for:
1.
The degree
and regularity
of
tread
wear.
2. Cuts,
penetrations,
and
impact
bruises.
3. Kerb damage
to
walls and shoulders.
4. Oil and
grease
contamination.
5. Bead
damage and
cha■ng.
Section 0.7
REPAIR
OF TYRES
AND
TUBES
Minor
injuries
confined
to
the
tread rubber,
such
as
from
small
pieces
of
glass
or
road dressing
material,
require
no
attention other than
the
removal of the
objects.
Cold
■lling
compound
of ‘stopping’
is
unnecessary
in
such
cases.
0.4
More
severe
tread
cuts
and wall
damage,
particularly if
they
penetrate
to
the
outer
ply
of the
fabric
casing,
require
vulcanized
repairs.
The
Dunlop
Spot Vulcanizing
Unit
is
available
for
this
purpose
and
it is
also
suitable
for
all
types
of
tube
repairs.
Injuries
which
extend
into
or
through
the
casing,
except
clean
nail holes,
seriously
weaken the
tyre.
Satisfactory
repair
necessitates
new
fabric
being
built
in and vulcanized.
This
requires
expensive
plant
and should
be
undertaken
by
a
tyre repair specialist.
Loose
gaiters and
‘stick-in’
fabric
repair patches
are
not
satisfactory
substitutes
for
vulcanized
repairs
and
should
be
used
only
as
a
temporary
‘get-you-home’
measure
if
the
tyre
has
any
appreciable
tread
remaining.
They
can
often
be
used
successfully
in
tyres
which
are
nearly
worn
out
and
which
are
not
worth the
cost
of
vulcanized
repairs.
Clean
nail holes
do
not
necessitate
cover
repairs. If
a
nail
has
penetrated
the
cover
the
hole
should
be
sealed
by
a
tube
patch
attached
to
the
inside of
the
casing.
This
will
protect
the
tube from
possible
chafing
at
that
point.
If
nail
holes
are
not
clean,
and
particularly
if frayed
or
fractured
cords
are
visible
inside the
tyre,
expert
advice
should
be
sought.
Repairing
tubes
Punctures
or
injuries
must
be
vulcanized.
Ordinary
patches
should
only
be
used for
emergencies and
cannot
be
relied
upon.
Section
0.8
FITTING
TYRES
AND
TUBES
Inspect the
inside of
the
cover
carefully
and
remove
all
dirt.
The
wheel
rim
must
be clean,
free
from
dust
and
undamaged.
In order
to
obtain
good
steering
it is
of
importance
to
ensure
that
the
wheels,
with
tyres
fitted,
are
in good
balance.
To
assist
this,
the
tyre
manufacturers
are
now
“Au;
:1
will”
1
[836.JW
Fig.
0.6
Pushthe
cover
bead
into
the
well-base
of the
wheel
as
indicated
by the
arrow

MG MGB Specifications

General

Brand	MG
Model	MGB
Category	Automobile
Language	English