MG MGB User Manual

THE GEARBOX
F
Third
motion
shaft bushes
Heat
the
bushes
to
between 180
and
200°
C.
(356
and
392°
F.),
ensure
that the locating
tongues
on
the bushes
are
in
line
with the splines
on
the
shaft and that the oil holes
are
in
line, then assemble
the second-speed
bush,
interlock
washer, and third speed
bush.
Section
F .12
FITTING THE GEARBOX FRONT COVER
To
prevent
oil leaking
past
the
gearbox
front
cover
oil seal
the
cover
must
be correctly
fitted
to
ensure
that the seal
is
concentric
with
the ■rst
motion
shaft.
When
refitting
the
cover
proceed
as
follows.
Clean
off the
cover
and
examine it
carefully
for burrs and
bruising,
particularly around
the
bore, stud
holes,
and
machined surfaces. Check the
■at surfaces for
twist
and
warp,
and
correct
it
if
necessary.
If the condition
is
too
bad
to
correct,
■t
a
new cover.
Remove
and discard the front
cover
to
gearbox gasket and
clean
off the ■at surfaces around the base of all studs.
Offer
the
front
cover
(less oil
seal)
to
the
gearbox and push
it
fully home
on
the studs.
The
cover
should be
free
to
move
in
all directions, and
points
at
which the holes
may
be
binding
on
the studs
must
be
relieved until the
cover
is
free
to
.‘■oat’.
Remove
the
cover
and,
using
Service
tool 18G
134
with
adaptor 18G 134 N,
■t the oil seal
so
that
its
lip
faces
i
|
A6067W
Fig. F.9
Removing
a
rear
oil seal, using Service tools
18G
389
and
18G
389
B
MGB. Issue4. 15676
ml
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"
A6068W
Fig.
F.10
Installing
a
new rear
oil seal,
using Servicetools 18G 134
and
18G
134
N
inwards
towards the
gearbox. Lightly
grease
and
fit
a new
gasket
to
the
gearbox front face,
then ■t
the
centralizer
(Service
tool
18G 598)
to
the
bore
of
the
front
cover
and
push
it in
until
it is
tight. Lightly
oil
the
seal and
pass
the
cover over
the first
motion
shaft,
taking particular
care
not
to
cut
or
damage
the
knife
edge
of the
seal.
Keep
the
centralizer ■rmly
in position,
push the
cover
onto
the
studs, and
■t
the
spring
washers
and
nuts,
tightening
the
nuts
finger
tight
only. Use
a
suitable
socket
spanner
and
long
extension
to
tighten the
nuts
a
half-turn
at
a
time
by
diametrical
selection
until
all
nuts
are
fully
tightened.
Remove the
centralizer
and
re■t
the clutch-operating
components.
F.9

MG MGB Specifications

General

Brand	MG
Model	MGB
Category	Automobile
Language	English