MG MGB User Manual

THE ELECTRICAL
SYSTEM
N
Section N.22
ELECT RICALLY HEATED
BACK—LIGHT
(GT)
Removing
and refitting
For
removing
and re■tting procedure refer
to
Section
R.27.
Fuse
A
line fuse
to protect
the heated
back-light
is
located below
the
main
fuse block
(see
Fig.
N.11).
Section
N.23
CIGAR
LIGHTER
Removing
Fig. N23
1.
Disconnect
the
cigar-lighter feed
wire
from
the
The
Cigarlighter
components
ignition switch
terminal.
2. Disconnect
the earth
wire
from the
cigar-lighter.
232:?“
umt’
cover'
3.
Press
in
the
sides of
the illumination
lamp
cover
and
3. Glow
ring.
7. Bulb holder.
4.
Shell.
withdraw the
lamp
unit
from the
lighter
shell.
4. Unscrew the
lighter
shell from the
switch
base.
5.
Withdraw
the
switch base
and glow
ring
from
the
front
of the fascia
panel.
Refitting
6. Reverse the
removing
procedure
in l
to
5.
Section N.24
CHARGING
SYSTEM (GHN4
and
GHD4
Cars)
Description
The
12-volt NEGATIVE-earth
charging
system
consists
of
an
alternator
and
a
voltage regulator supplying
current to
two
6-volt
batteries
connected
in series.
Diodes
contained within the
alternator
provide recti■cation
of
its
output
current
for
battery charging
and also
prevent
reverse
current
■ow. These
and other
design
features
_
overcome
the
necessity
of
a
cut-out
and
current
regulator.
-
T
:-
Dose:
Precautions
To
prevent
inadvertent damage
to
the charging
system
Fig. N.24
equipment
the following
points
must
be observed.
16AC
alternator
Charging
circuit
1.
Do
not
run
the
engine
with the
battery
or any
of
the
l.
Alternator.
4.
Resistance.
charging
circuit
cables
disconnected.
2-
Contml bOX-
5- Battery.
2.
Ensure
that all electrical
connections
in
the
generating
3'
warning
hght'
6' Ignmon
SWltCh'
and charging
circuits
are
maintained
tight
at
all
times.
3. Ensure
that the
correct
battery polarity (NEGATIVE
EARTH)
is
maintained
at
all
times.
4.
If
electric
arc—welding
is
to
be
used
on
the
car,
all
electric cables
must
be
disconnected from
the
alternator
and control
box terminals.
MGB.
Issue7.
25729
N.27

MG MGB Specifications

General

Brand	MG
Model	MGB
Category	Automobile
Language	English