MG MGB User Manual

THE
STEERING
GEAR
J
pint, .2
litre)
of
Extreme
Pressure
S.A.E.
90 oil through
the
end of the
gaiter,
or
pump
the
oil
into
the
rack housing
through the
nipple provided.
Re■t
and tighten
the
gaiter
clip.
Re■t
the ball
ends and
locknuts.
Section I .7
STEERING—COLUMN
ALIGNMENT
Set
the
steering
in
the straight-ahead
position
and check
that the traf■cator
cancellation stud
at
the
top
of
the
column
is in
the
correct
angular
position
when
the
serrations
on
the
coupling and column
are
aligned.
When assembling the
steering-column
or
steering gearbox
assembly
to
the
car care
must
be
taken
to
ensure
a
free
condition
at
the universal
joint
before the
column
or
gearbox
securing
bolts
are
tightened.
For the universal
joint
to
be
completely unloaded the
centre-line
of the
steering-column and the
centre-line of
the
steering
rack
pinion
must
pass
through
the
centre
of the
universal
joint
spider when
the assembly
is viewed
from
above
and from
the
side. Failure
to
ensure
complete freedom
at
the
universal
joint
will load the
steering pinion
upper
bearing
and
cause
extreme
wear
and
steering
stiffness.
To
enable the
assembly
to
be
secured
in
the
correct
position
the
steering-column
support
bracket
and plate
may
be moved
up
and down and
sideways,
and packing shims
may
be ■tted between the
steering
rack
mounting
bosses
and the brackets
on
the front
suspension
member.
Tighten
the
universal
joint
clamp
bolts.
With
all column
and rack
securing
bolts slack,
position
the
universal
joint
and tighten the
support
bracket clamp
bolts
at
the
lower
end of the column.
Should there
be
a
gap
between
the gearbox
bosses
and
mounting
brackets,
remove
the
bolts,
pack with shims
as
required, and replace
and tighten the
securing
bolts.
To
ensure
complete alignment
again
slacken
and re-tighten
the
steering-column
lower
support
bolt.
Tighten the
upper
support
bracket bolt.
Section
I
.8
NYLON-SEATED
BALL
JOINTS
Nylon-seated
ball
joints, which
are
sealed
in
manufacture
and
require
no
lubrication,
are
■tted
at
the
steering-arm
tie-rod ball
joints.
It
is essential that
no
dirt
or
abrasive
matter
should
enter
the
nylon
ball
joint;
in
the
event
of
a
rubber boot
being
torn
or
damaged
in service
it is
probable
that the
ball
joint
has
been
left
exposed,
and
it is
therefore
important
to
renew
both
the
ball
joint and the
boot.
If damage
to
the
boot
occurs
whilst
the
steering side-
or
cross-rod
is
being
removed
in
the
workshop,
only
a new
rubber
boot
need be ■tted,
provided
the
ball
joints
is
clean.
Smear
the
area
adjacent
to
the
joint with
a
little
Dextragrease
Super G.P.
prior
to
assembling
the boot.
Early
production
cars
are
■tted
with
a
plain
washer
under
the
steering
ball
joint
nut.
Later
production
cars are
■tted
with
steering
levers
having
areduced diameter
taper
hole. These levers
have
a
longer
ball
MGB.
Issue
6. 82448
joint
pin,
are
■tted
with
a
thicker
nut
and
have
no
plain
washer.
When
early production
cars
with
a
plain
washer
under
the
steering
ball
joint
nut
are
fitted
with
service
steering
levers
the
plain
washer
must not
be
replaced.
Section
I .9
STEERING
LOCK
IGNITION
SWITCH
Cars
exported
to
certain markets
are
■tted
with
a
combined
ignition/starter
switch
and
steering-column
lock
mounted
on
the
steering-column.
On
cars
■tted
with the
lock
a
sleeve
integral with
the
inner
column
is
slotted
to
permit
engagement
of
the lock
tongue;
the
outer
column
is also
slotted
to
allow the lock
tongue
to
pass
through.
A
hole
drilled
in
the
upper
surface
of
the
outer
column
locates
the
steering-lock
bracket.
The
bracket
is
secured
by
two
bolts
each
waisted below
the head
to
permit removal of the
heads
by shear
action during
assembly.
To
remove
the
lock,
disconnect
the battery
and
the
ignition/
starter
switch
connections and
turn
the
lock
setting
to
‘GARAGE’
to
unlock
the
steering. Free
the
steering-column
assembly
as
described
in
Section
J.3
and
remove
the
lock
securing
bolts
with
an
easy-out.
Section
1.10
STEERING-COLUMN
(GHNS
and
HGDS
cars
from
Car
No. 258001)
Removing
1. Disconnect
the
battery.
2. Turn the
steering
to
the
straight-ahead
position.
3. Mark
the
inner
steering-column
and the
universal
joint
to
ensure
correct
alignment
when
re■tting.
4. Remove the
pinch bolt
and
nut
securing
the
universal
joint
to
the
steering-column.
Disconnect
the
multi
connector
block.
Disconnect
the
wiring
from
the
ignition switch.
7. Remove
the bolts
retaining the
steering-column
upper
and
lower
support
clamp
brackets.
8.
Remove
the
steering-column
complete
with the
sealing
tube,
steering
wheel,
direction
indicator
and
ignition/
steering
lock
switch.
9‘.“
Refitting
9. Check
that
the
steering
rack
is in
the
straight
ahead
position.
10. Check
that
the
steering-column
is in
the
straight
ahead
position.
11. Reverse
the
removing procedure
in 1 and
4
to
8
noting:
a.
That
the
sealing
tube
is
■tted
to
the
steering-column
with the
gaitered
end
towards
the
toe-board.
b.
Ensure
that the
marks
made
in 3
align
when
■tting
the
inner column
to
the
universal
joint.
J.7

MG MGB Specifications

General

Brand	MG
Model	MGB
Category	Automobile
Language	English