MG MGB User Manual

THE
COOLING
SYSTEM
C
Removing
To
remove
the
radiator
drain
the
coolant«Section
C.4,
release
the
top
and bottom
hose clips,
and detach
the hoses
from
their
connectors.
Where
an
oil
cooler
is
not
■tted
the radiator
and
diaphragm
may
be
removed
as a
complete
assembly by
removing
the
top
radiator
to
diaphragm
screws
to
release
the
stays
and then
removing
the
screws
securing
each side
of the
diaphragm
to
the
body.
If
an
oil
cooler
is
■tted
the
pipe
connections
must
be
disconnected
from
the
cooler
and
the
engine
before
removing
the
radiator
and
diaphragm
assembly.
To
remove
the
radiator
without
the diaphragm
undo the
radiator
t0
diaphragm securing
screws,
slacken
the
diaphragm
to
body securing
screws,
remove
the
screw
retaining the
over■ow
pipe
clip,
and then
lift
the
diaphragm
sufficiently
to
allow
the
radiator
to
be
pulled
forward and
lifted
from the
car.
Replacing
Replacement is
a
reversal
of the
removal
sequence,
but
ensure
that
the
two
packing pieces
are
correctly
positioned
either
side
of the
radiator
and
that the
over■ow
pipe is
secured.
Close
the drain
taps,
■ll
with
coolant,
and
check
for
leaks.
Section C .7
WATER
PUMP
Removing
1.
Remove
the
radiator—Section
C.6.
2.
Remove
the
dynamo
or
alternator.
3.
Unscrew
the
fan
and
pulley
retaining
screws
and
remove
the
fan
and
pulley.
4.
Remove
the
water
pump
securing
bolts
and
withdraw
um:
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5':
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.
Fig. C.4
The dynamo
mounting
bolts which
must
be
slackened
for fan
belt tension
adjustment
Dismantling
5.
Withdraw
the pulley
hub from
the spindle.
6.
Withdraw
the bearing
locating wire
from
the body
aperture.
7.
Tap
the spindle
rearwards
and
remove
the
spindle
complete
with
the bearing.
The
bearing
cannot
be
removed
from the
spindle.
8.
Withdraw
the
impeller
from
the spindle
and
remove
the seal.
Reassembling
9.
If the
interference
fit
of
the
fan hub
was
impaired
when
the hub
was
withdrawn
from the
spindle
a
new
nut must
be
■tted. The
hub
must
be ■tted
with
its
face ■ush with
the end
of the spindle
(B,
Fig.
C.3).
10.
Press
the
spindle
bearing
assembly
into
the
pump
body
and take
measurement
\E,
Fig. C.5;
adjust
the
the
pump.
'
B
A
B
J
J
"
‘
J
3
g
L
'020"
033/
c\/
—~-'—
D
A5363W
50164
Fig. C.3
A
section
through the
water
pump
showing:
(left) early
type
with
grease
plug,
and
(right)
later
sealed
type
A.
Lubricating
hole.
C.
.020
to
.030 in. (.51
to
.76
mm.)
clearance.
B.
Hub
face
flush
with spindle.
D.
.042
to
:062 in. (1.1
to
1.6
mm.)
clearance.
MGB. Issue
4.
25729
C.9

MG MGB Specifications

General

Brand	MG
Model	MGB
Category	Automobile
Language	English