THE
ELECTRICAL
SYSTEM
N
IGNITION
SWITCH
7.
Turn
the
key
to
position
‘0’.
8.
Disconnect
the
wiring
from the
switch.
9.
Remove
the
two
screws
retaining
the switch
to
the
steering
lock.
10.
Withdraw
the
switch.
DIRECTION
INDICATOR/HEADLIGHT
FLASHER/LOW-HIGH
BEAM
SWITCH
11.
Unscrew
the
four
switch cowl retaining
screws
and
remove
the cowl.
12.
Disconnect
the
switch
wiring
from the
multi
connector
block
and
unclip
it
from the
steering-column.
13.
Remove
the
two
screws
retaining
the
direction
indicator/headlight
■asher/low-high
beam
switch and
remove
the switch
and
retaining
clip.
Refitting
HEATER,
WIPER AND
LIGHTING
SWITCHES
14.
Reverse
the
removing
procedure
in
l
to
4.
CONSOLE
SWITCHES
15.
Reverse
the removing
procedure
in
5
to
6.
IGNITION SWITCH
l6.
DIRECTION
Reverse
the
removing
procedure
in
7
to
10.
INDICATOR/HEADLIGHT
FLASHER/LOW-HIGH
BEAM
SWITCH
17.
Reverse
the removing
procedure
in
11
to
13 ensuring
that
the small
tongue
on
the switch
engages
in
the
cut-away
of the
steering
outer
column.
Section
N.31
STARTER
(Lucas
Type
2M100
Pre-engaged)
Removing
1.
Disconnect
the battery.
2.
SYNCHROMESH
GEARBOX
ONLY: Detach the
clutch slave
cylinder
from the gearbox and
move
the
cylinder
clear of
the
starter.
3.
Remove
the
starter
top
securing
bolt.
4. Disconnect
the
wiring
from the solenoid
terminals.
5. Remove
the
starter motor
lower
securing
bolt
and
withdraw the
starter.
Dismantling
6. Remove
the
nut
securing
the
(solenoid-to-starter)
connecting
link
to
the solenoid
‘STA’ terminal.
7.
Pull
back the connecting
link
from the
solenoid
terminal.
8.
Remove
the
nuts
securing
the
solenoid
to
the drive
end bracket.
Refit
torque
4.5
lb.ft.
(0.63 kg.m.).
9. Remove
the
solenoid
unit
from the drive-end bracket.
10.
Lift the
solenoid plunger
and
return
spring
from the
engagement
lever.
11.
Remove
the
block-shaped
grommet.
MGB. Issue
4.
82448
12.
CAUTION—Before
carrying
out
instructions
7
to
15
ensure
that
new
retaining rings
are
available
for
the
armature
shaft and
engagement
lever
pivot pin
are
available for
reassembly
of the
starter.
Remove
the end
cap
seal.
13. Remove
the
armature
shaft
retaining
ring
(Spire nut).
14.
Remove
the
through-bolts. Re■t
torque
8
1b.ft.(1.11
kg.m.).
15.
Detach the
commutator
end
cover
from the yoke,
disengaging the
field brushes
from the brush box
moulding, and
remove
the end-cover.
16. Remove
the
thrust washer from the
armature
shaft.
17.
Withdraw the yoke
from the
armature
and drive-end
assembly.
18. Remove
the
retaining ring
(Spire
nuts)
from the
engagement
lever
pivot pin.
19. Remove
the
pivot pin
from the
engagement
lever and
drive-end bracket.
20.
Move
the thrust
collar
clear
of the
jump
ring,
and
remove
the
jump ring
from
the
armature
shaft.
21.
Remove
the thrust collar.
22.
Remove
the roller
clutch drive and
engagement
lever
assembly
from the
armature
shaft.
Inspection
BRUSH GEAR,
COMMUTATOR
AND ARMATURE
23.
Refer
to
Section
N.28.
FIELD WINDINGS
24.
25.
26.
Connect
a
l2-volt
battery-operated
test
lamp between
each
of the
field
brushes and
a
clean
part
of the yoke
the
lamp
will light if
continuity is
satisfactory
between the
brushes, windings, and yoke
connection.
Disconnect
the ■eld windings
from
their riveted
connection
with
the
yoke.
Using
a
110-volt A.C.,
15-watt
test
lamp
connected between each
of the
brushes
in
turn
and the yoke, check
the insulation
of
the
field windings, if the lamp lights the
windings
must
be renewed.
The
field windings
may
be
renewed
as
follows:
a.
Disconnect
the
end of the field winding where
it
is
riveted
to
the
yoke.
b. Remove
the four pole-shoe
retaining
screws
using
a
wheel-operated screwdriver.
c.
Withdraw the
■eld
coil
assembly from the yoke.
(1.
Clean the inside
of
the yoke
and insulating
pieces
which
the
through-bolts locate.
e.
Loosely
■t
the
new
field
coil
assembly with the
pole-shoes
into
the yoke.
f. Fit the
pole-shoe
retaining
screws
but
do
not
tighten.
g.
Slide
the insulating
pieces
between the
field
coils
and the yoke,
positioned
90°
each side
of the
Field coil brush
connection point.
h. Tighten the pole-shoe
screws
evenly
using
a
wheel-operated screwdriver. Torque 30
lb.ft.
(4.15
kg.m.).
j.
Reconnect
the
end of the
winding
to
the yoke.
N.37
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