Electrics Section T
Battery specification
Type
Voltage
Amp-hour
capacity
Specific gravity charged
Low
limit
Fuses
Lead acid
12
volts
20
1·280-1·30
1·150
The fuse
box
is secured
to
the
R.H. side
of
the
engine compartment
by
two
No. 8 screws and
nylon
inserts.
A
blown
fuse is indicated
by
the failure
of
all
units protected
by
it, and is confirmed
by
examination
of
the fuse
when
withdrawn.
Before
renewing
a
blown
fuse inspect
the
wiring
applicable
for
evidence
of
a short.
Use
only
the correct fuse. The fusing value is
marked
on
a coloured paper slip inside the glass
tube
of
the fuse.
The fuses
indicated
in Figure
18
show
the
top
35
amp
fuse protecting
the
battery
circuit
which
includes headlamps, interior lamp and horn.
The
2nd
35
amp fuse protects
the
ignition
circuit
including
the indicators, heater,
wiper
motor
and instrument gauges. This fuse also
protects
the
hazard
warning
circuit and
additional gauges, oil pressure and battery
condition
indicator, on
the
Super model.
The
3rd
fuse is a
35
amp fuse in series
with
the
battery
lighting
circuit
protecting the side and
rear lamps
including
the
number
plate lamp and
instrument
illumination.
The
4th
fuse is a
35
amp fuse protecting
the
heated rear
window
on Super models. This fuse
is a 'spare' position on standard models.
On Super models the fog and
spot
lamp and
radio,
if
fitted, are protected
by
separate
in-line
fuses located behind the fascia.
Coil
The
coil
is secured
to
a
mounting
plate
on
the
R.H. side
of
the engine bulkhead
by
two
-l
UNF
nuts, lockwashers and plain washers (see
Figure
18).
Little attention
to
the-
coil is necessary other
than keeping
the
terminal connections clean·
and tight.
The efficiency
of
the coil can be tested
as
follows:
1 Remove the
distributor
cover and set the
engine so
that
the
distributor
contact
points are
closed.
20
2 Remove
high
tension cable from distributor
cover and
whilst
holding
the
cable
about
6·0mm
(0·25in)
from some metal part
of
the vehicle,
make and break the
contact
points
with
an
electrician's screwdriver.
A strong and regular spark
will
jump
the gap
from the end
of
the cable
if
the coil
is
in order.
If
a spark is
not
apparent the coil
will
have
to
be replaced.
Starter solenoid
The starter solenoid is secured
to
a
mounting
bracket on the R.H. side
of
the engine
compartment
by
two
No.
10
UNF
nuts, plain
washers, and lockwashers (see
Figure
18).
If
difficulty
is encountered
when
trying
to
start
the engine a
faulty
solenoid
could
be
the cause.
A simple check can be carried
out
by
pressing
the red
button
on the solenoid, at
which
the
starter
motor
should
'kick
over'
the
engine.
If
this fails, a
faulty
solenoid is indicated,
but
before resorting
to
fitting
a replacement check
the starting,
ignition
and charging systems and
cleanliness and security
of
the earthing leads.
Sparking plugs
Autolite
AGR32
sparking plugs are
fitted
to
all
vehicles. The gaps
should
be maintained at
0·64mm
(0·025in).
Providing the carburettor
mixture is
correct, a set
of
plugs
will
serve
for
at
least
6,000
miles
(1
O,OOOkm)
without
attention.
When
attention is necessary, however,
the
plugs
should be cleaned on a sand blasting machine.
If
on inspection the
plugs
are
badly
worn,
they
should
be replaced
to
maintain
optimum
engine
performance. When adjusting the points,
the
central electrodes must
not
be moved.
Always
lever
the
earth electrodes
as
necessary
to
obtain
the required gap.
On replacement ensure the
plugs are
firmly
screwed home.
Horn
On standard vehicles a
high
tone horn is secured
to
the L.H. side
of
the engine compartment by
two
-l
UN F set screws, plain washers,
lockwashers and nuts.
Super vehicles are
fitted
with
an additional
low
tone
horn located on
the
R.H. side
of
the engine
compartment
(see
Figure
18).
If
the horn fails
to
operate, first check the
security
of
the
horn terminals and earthing leads.
The horn is
not
adjustable and must be replaced
if
faulty.
Windscreen
wiper
motor
and blades
Description
The windscreen
wiper
motor,
mounted
inside
the
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