MG MGB User Manual

THE
AUTOMATIC
GEARBOX
REAR
CLUTCH
4.
Apply
air
pressure
into
passage
(2)
in
the
casing
web
and
check
for thump, indicating
that the
clutch has
applied.
If
the transmission
has been
removed
turn
the
input
shaft
to
verify clutch
operation.
Maintain
air
pressure
for several
seconds
to
check for leaks.
Front
servo
5.
Apply
air
pressure
to
the tube
location
(3) and
observe
the
movement
of the
piston pin.
Rear
servo
6.
Apply
air
pressure
to
the tube
location
(4) and
observe
the
movement
of
the
servo
lever.
Conclusions
7.
If
the
clutch and
bands
operate
satisfactorily with
air
pressure,
faulty
operation
of the
transmission
indicates
malfunction
of the
hydraulic control
system
which
will
necessitate
removing
and
overhauling the
valve
bodies
assembly.
Section F
d.1 0
TRANSMISSION ASSEMBLY
Removing
1.
Remove
the
engine
and gearbox
assembly
—
Section
A21.
2.
Drain the gearbox.
3.
Disconnect
the
down-shift and throttle valve cable
from the carburetter
linkage.
4.
Unscrew the
six
bolts
securing
the gearbox
to
the
converter
housing and withdraw
the
gearbox.
5.
If the gearbox
has
been
removed
for
dismantling
or
component
removal, the
exterior
of the
gearbox
should be
thoroughly
cleaned
of
all dirt
before
commencing
dismantling
operations.
Use
tool 18G 673
to support
the gearbox during
dismantling
and assembling
operations.
Rear
brake
band
adjustment
2.
Locknut.
1.
Adjusting
screw.
MGB.
Issue 1.
15676
Fig. Fd.8
Air
pressure
check feed
locations
3. Front
servo.
4. Rear
servo.
1.
Front
clutch and
governor.
2. Rear clutch.
Refitting
6.
Reverse the
removing
procedure
in l
to
5.
Section
Fd.]
1
TORQUE CONVERTER
Removing
1.
Remove
the
transmission
assembly
7
Section
F d9,
1
to
5.
2.
Unscrew
the
bolts
securing
the
converter
housing
to
the
engine
and
remove
the
housing.
3. Unscrew the four bolts
securing
the
converter to
the
drive
plate and
remove
the
converter.
Refitting
4.
Reverse
the
removing procedure
in 1
t0
3,
leaving
the
converter
bolts loose
to
allow the
converter to
centralize
when
the
gearbox
is
fitted.
Use
new
tab
washers
to
lock the
converter
bolts when tightened
after re■tting
the
gearbox.
Section Fd.
12
GOVERNOR
ASSEMBLY AND
SPEEDOMETER DRIVE
Removing
1.
Remove the
transmission
assembly
—
Section
Fd.9,
1
to
5.
2.
Using
tool 180
34A
to
prevent
the
output
shaft from
turning,
remove
the drive ■ange
securing
bolt and
withdraw the ■ange.
3.
Unscrew the four bolts
securing
the
rear
extension
housing
and
remove
the housing.
Fd.17

MG MGB Specifications

General

Brand	MG
Model	MGB
Category	Automobile
Language	English