Jacking Up The Gear; Tyre Replacement; The Side-Lift Jack; Removing The Hub Cap (Disc Wheels) - MG MGB Workshop Manual

0
THE
WHEELS AND TYRES
GENERAL
DESCRIPTION
The
wheels fitted
as standard equipment
are of the
pressed-steel
ventilated disc type having four-stud
fixing
holes.
A
spare
wheel
complete
is housed
in
the
luggage
compartment
and is retained by a clamp plate and bolt.
The jack is a standard side-lift type and is also stowed in the
luggage compartment
when not in use.
Section 0.1
MAINTENANCE
Attention should be paid to the following
points with
a
view to obtaining
the maximum
mileage from
the road
wheels and tyres.
1. Change the positions
of the tyres on the car at regular
intervals.
2. Test the
pressures
of the tyres with
an accurate
pressure gauge. Restore any air lost. In■ate the spare
wheel to the rear wheel pressure. It is not suf■cient to
make a visual examination
of the tyres for correct
in■ation.
3. Keep the treads free of grit,
■int, stones, or other
foreign
matter,
and repair cuts as soon as they are
found.
4. Clean the wheel
rims and keep them free
of rust.
Repaint them when necessary.
5.
Keep the brakes
and clutch
correctly adjusted
as
fierceness or uneven action from either of these units
has a detrimental
effect on tyre wear.
6. Suspect misalignment
if rapid wear of the front tyres
is noticed and correct the fault at once. See Section I
for details of front wheel alignment.
Fig. 0.1
The side-lift jack
.2
slozcw
Fig. 0.2
Removing the hub cap (disc wheels)
7. Remove oil or grease with petrol sparingly applied and
wipe off immediately.
8.
Avoid
over- and under-in■ation,
kerbing,
and other
causes of severe impact.
9. Repair any damage immediately
it is discovered and
remove tyres
before
they have worn
too
far for
remoulding.
Tyre replacement
Radial-ply
tyres should
only be fitted
in sets of four,
although
in certain circumstances
it is permissible to fit a
pair on the rear wheels; tyres of different
construction
must
not be used on the same axle. A pair must never be ■tted to
the front
wheels with conventional
tyres at the rear. The
positional changing of wheels must not be undertaken
if
radial-ply tyres have been to fitted the
rear wheels only.
Section 0.2
JACKING
UP THE CAR
A jacking
tube is ■tted to each side of the car under the
■oor panel approximately
midway along the body. The
jack will lift one side of the
car and thus enable a front or
rear wheel to be changed.
Before jacking
up the car apply the hand brake and if the
car is standing on an incline
chock the wheels. Place the
jack in the appropriate
jacking tube so that the top of the
jack leans slightly outwards to allow for radial
movement of
the body when the car is lifted.
Remove the hub cover and slacken the wheel nuts
a turn or
two before commencing to lift the car.
Operate the jack
until the road wheels are clear of the
ground.
After
changing the wheel lower the car and
remove and
stow the jack.
Do not use the jack as a support for the
car when carrying
out servicing operations underneath the car.
MGB. Issue3.
69615