set clock DATSUN 610 1969 Workshop Manual

IgnItIon
System

DESCRII
TION

IGNITION
TIMING

IGNITION
DISTRIBUTOR
Maintenance

ADJUSTING
THE
CONTACT
BREAKER
GAP

CENTRIFUGAL
ADVANCE
MECHANISM

VACUUM
ADVANCE
MECHANISM

IGNITION
DISTRIBUTOR
Removal
and

Dismantling

IGNITION
DISTRIBUTOR

Assembling
and
Installation

SPARKING

PLUGS

DESCRII
TION

The

ignition
circuit

comprises
the
distributor

ignition
coil

ignition
switch

spark
plugs
high
tension
lead
and
the

battery

See
Fig
C
1

The
Hitachi
distributor
is
shown
in

exploded
form
in

Fig

C
2

19niton

timing
is

automatically
regulated
by
the
distributor

centrifugal
advance
mechanism
or
vacuum
advance
mechanism

depending
upon
the

demand
made
on

the
engine

The
vacuum
advance
mechanism

operates
under
part

throttle

only
and
uses
intake
manifold

depression
to
advance
the

ignition
timing
When
the

engine
speed
is
increased
the
vacuum

is

inoperative
and
ignition
timing
is

regulated
by
the

centrifugal

advance
mechanism

The

centrifugal
advance
mechanism
uses
a

system
of

governor
weights
and

springs
which
turn
the
carn

assembly
in
on

anti
clockwise
direction
to

advance
the

ignition
timing
As
the

engine
speed
is
decreased
the

weights
move
back
and
allow
the

cam
to
return

thereby
retarding
the

ignition
timing

The

ignition
coil
is
an
oil
filled
unit

comprising
a
coil

around
which
is
wound
the

secondary
and

primary
windings
The

number
of
turns
in
the

primary
winding
provide
a

high
secondary

voltage
throughout
the

speed
range
The
resistor
is
automatically

by
passed
at
the
moment
of

starting
and
allows
the

ignition

coil
to

be

directly
connected
to

the

battery
This
applies
the

full

battery
voltage
to
the

coil
to

give
the

necessary
staTting

boost

When
the
starter
switch
is
released
the
current
flows
through

the
resistor
and
the

voltage
through
the
coil
is

dropped
for

normal

running
purposes

IGNITION
TIMING

The

ignition
timing
can

be

accurately
checked

using
a

stroboscopic
timing
light
which
should
be
connected
in
accor

dance
with
the
manufacturers
instructions

Make
sure
that
the

timing
marks
on
the
crankshaft

pulley

are
visible
if

they
are
not
visible
mark

them
with
chalk

or

white

paint
Each
mark

represents
a
50
division
of
the
crank

angle

Disconnect
the
distributor
vacuum

line
start

the

engine

and
allow
it
to
run
at
normal

idling
speed
or

slightly
below

Point
the

timing
light
at
the

timing
pointer
on
the
front
cover

Fig
C
3
The
crankshaft

pulley
groove
should

appear

to

be

stationery
and

aligned
with
the

pointer
on
the
front
cover

The

top
dead
centre
mark
is
located
at
the
extreme

right
as

shown
in
the
illustration
If
the

setting
requires
adjustment
the

distributor

flange
bolts
must
be
slackened
and
the
distributor

body
turned
clockwise
to
advance
or
anti
clockwise
to
retard

the

timing
See
Technical
Data
for

timing
settings

After

adjusting
the

timing
tighten
the
distributor

flange

bolts
and
recheck
the

timing

IGNITION
DISTRIBUTOR
Maintenance

Remove
the
distributor

cap
by
easing
away
the
two

clamps

and
examine
the

points
for

signs
of

burning
or

pitting
The

points
can
be
cleaned
if

necessary
using
a
fine

grade
of
oilstone

or
file
The
faces
of
the

points
must
be

completely
flat
and

parallel
and
all
abrasive
dust
removed
with

compressed
air
If

the

points
are

excessively
pitted
they
must

be
renewed
and

grease

applied
to
the

moving
contact

pivot
and
the
surface
of

the
cam

Ensure
that
the
distributor

cap
is

thoroughly
clean
both
inside

and
outside
A

contaminated

cap
will

promote
tracking

indicated

by
black
lines
and
caused

by
electrical

leakage
between

the

segments
on
the
inside
of

the

cap
Make
sure
that
the

carbon

button
is
not
worn
Both
the
distributor

cap
and
rotor

must
be
renewed
if

they
are
cracked
or

damaged

IGNITION
DISTRIBUTOR

Adjusting
the
contact

breaker

gap

To

adjust
the
contact
breaker

points
remove
the
distributor

cap
and

pull
the
rotor
off

the
cam

spindle

Turn
the

engine
until

the
heel
of
the
contact
breaker
arm

is

positioned
on
the
cam

lobe
the
contact

breaker

gap
is
set
to

the
maximum
in
this

position

Slacken
the

adjusting
screw

Fig
CA
insert
a
feeler

gauge

between
the

points
and

adjust
the
breaker

plate
until
the
re

quired
gap
of
0
45
0
55
mm
0
0177
0
0217
in

is
obtained

Tighten
the

adjusting
screw
and
recheck
the

setting
After

the
contact
breaker

gap
has
been

adjusted
check
the

ignition

timing
as

previously
described

The
tension
of
the
contact
breaker
should
be
0
5
0
65

kg

I
I
I
4
lb
Measure
the
tension
with
a

gauge
and
at
900
to

the
contact
breaker
arm

29

CENTRIFUGAL
ADVANCE
MECHANISM

Special
equipment
is

required
to
check
the
advance

characteristics
It
is

possible
however
to

carry
out
an
exam

ination
of

the
caffi

assembly
and
the

weights
and

springs
to

ensure
that
the
earn
is
not

seizing

Lift
off
the
distributor

cap
and
turn
the
rotor
anti
clock

wise
When

the
rotor

is
released
is
should
return
to

the
fully

retarded

position
without

sticking
If
it

does
not
return
to
the

fully
retarded

position
it
will
be

necessary
to
check
for

dirt

and
weak

springs

It
should
be
noted
that

any
wear
in
the

mechanism
or

lose
of

spring
tension
will

upset
the
advance
characteristics
and

cause

unsatisfactory
engine
running
performance
over
the

speed

range

VACUUM
ADVANCE
MECHANISM

The

diaphragm
of
the
vacuum
advance

mechanism
is

mechanically
connected
to
the
contact
breaker

plate
The
rise

and
fall
of
inlet
manifold

depression
causes

the

diaphragm
to

move

the
contact
breaker

plate
to

advance
or

retard
the

ignition

If
the
vacuum

control
unit
fails
to

function

correctly
a

check
can
be
carried
out
to
ensure
that
the
contact
breaker

plate

is

moving
freely
and
that
the

three
steel

balls
at

the

top
and

oottom
of
the

plate
are

adequately
lubricated

Also
make
sure
that
the
vacuum
inlet

pipe
is
not
blocked

or

leaking
and
is

securely
tightened

Leakage
may
be
due
to
a

defective

diaphragm
which

should

be
renewed

along
with

any
other

faulty
part
of
the
mechanism

IGNITION
DlSTRffiUTOR
Removal

and

Dismantling

Disconnect
the

battery
leads

2
Disconnect
the

high
tension
lead
at

the
coil

3
Withdraw

the
high
tension
leads
from
the
distributor

cap

4
Detach
the
suction

pipe
from
the
vacuum
control
unit

5
Mark
the

position
of
the
distributor
and
rotor
remove
the

flange
mounting
bolts

and
withdraw
the
distributor

To
dismantle
the
distributor

proceed
as

follows

Take
off
the
distributor

cap
and
remove

the
rotor

Slacken

the
two
set
screws

holding
the
contact
breaker

upper
plate

Remove
the

primary
cable
terminals
and
withdraw
the
contact

set
from

the
distributor
Fig
C
S
Remove
the
vacuum
control

unit

c
Remove
the
two
screws
and
lift
out
the
contact

breaker

plate
detach
the

clamp
the
terminal
and
the
lead

To
remove
the
cam
take
out
the
centre
screw
as

shown
in

Fig
e
6
Drive
out

the
drive

pinion
retaining
pin
with
a
drift

and
hammer
Fig
e
and
remove
the

pinion
and
washer
Take

care
not
to
stretch
or
deform
the

governor
springs
when

detaching

them
from
the

weights

IGNITION
DISTRIBUTOR

Assembling
and

Installing

Assembly
is
a
reversal
of
the

dismantling
procedure

Lubricate
the

moving
contact

pivot
and
smear
the
lobes
of
the

cam
with
multi

purpose
grease

If

the
centrifugal
advance
mechanism
has
been
dismantled

the

governor
springs
and
cams
must
be
refitted
as

shown
in

Fig
e
8
The

governor
weight

pin
6
should
be
fitted
into

the

longer
of
the
two
slots

leaving
a
certain
amount
of

clearance

for
the
start

and
end
of
the

centrifugal
advance
movement

When

installing
the
distributor
take
care
to

align
the

body

and
rotor

with
the
marks
made
during
removal
The
rotor
must

be

positioned
in
its

original
location
it
will
turn

slightly
when

the
distributor
is
inserted
and
the

gear
teeth
mesh
Remove
and

replace
the
distributor
if

the
rotor
does
not

point
to
the

align

ment

mark
until
both
distributor

body
and
rotor
are
correctly

aligned

SPARKING
PLUGS

The

sparking
plugs
should
be

inspected
and
cleaned
at

regular
intervals
not

exceeding

every
10
000
km
6000
miles

New

sparking
plugs
should
be
fitted
at

approximately
20
000

km
12
000
miles

Remove
the

plugs
and
check
the
amount
of
electrode

wear
and

type
of

deposits
Brown
to

greyish
tan

deposits
with

slight
electrode
wear

indicate
that
the

plugs
are

satisfactory
and

working
in

the
correct
heat

range

Dry
fluffy
carbon

deposits
are
caused

by
too

rich
a
mixture

dirty
air
cleaner
excessive
idling
or

faulty
ignition
In
this

case

it
is
advisable
to

replace
the

plugs
with

plugs
having
a

higher
heat

range
Oily
wet
black

deposits
are
an

indication

of

oil
in

the
combustion
chambers

through
worn

pistons
and

rings
or
excessive
clearance
between
valve

guides
and
stems

The

engine
should
be
overhauled
and
hotter

plugs
installed
A

white
or

light
grey
centre

electrode
and
bluish
burned
side

electrode
indicates

engine
overheating
incorrect

ignition
timing

loose

plugs
low
fuel

pump
pressure
or
incorrect

grade
of
fuel

Colder

sparking
plugs
should
be
fitted

The

plugs
should
be
cleaned
on
a

blasting
machine
and

tested
Dress
the
electrodes
with
a
small
file
so
that
the
surfaces

of
both
electrodes
are
flat
and

parallel
Adjust
the
spark
plug

gap
to
0
8
0
9
mm
0
031
0
035
in

by
bending
the
earth

electrode
Refit
the

plugs
and

tighten
them
to
a

torque
reading

of
1
5
2
5

kgm
II
15Ib
ft

31

TechnIcal
Data

IGNITION
DISTRIBUTOR

Type

L16
ll8
with

single
carbl

L16
L18
with
twin
arb

L14

Firing
order

Rotation

Ignition
timing
BTDC

0411
58K

0409
54K

0411
63

Dwen

angle
Hitachi
D411
58K

Hitachi
D409
54
K

Hitachi
0411
63

I
3
4

2

anticlockwise

100
at
600
r

p
m

140
at
650
c

p
m

80
at
600
r

p
m

49
550

Contact

point

gap
setting

Contact

spring
tension
0
45
0
55
mm
O
OI77
0
0217
in

0
50
0
65

kg
l
l
0
I
43
lb

Condenser

capacity
0
22
0
44
F

IGNITION
COil

Type

Spark
plugs

With

single
carb

With
twin
carb

Plug

gap

Tightening
torque
Hitachi
6
R
200

NGK
BP
5ES

NGK
BP
6ES

0
8
0
9
mm
0
031
0
035
in

1
5
2
5

kgm
II
15Ib
ft

1300cc

engine
IGNITION
TIMING

Adjustment

100
B
T
D
C
600
r

p
m

32

BRAKE
WARNING
UGHT
SWITCH

A

hydraulically
operated
warning
light
switch
is
located

in
the

engine

compartment
Fig
LA

The
front
and
rear
brake

systems
of
the
dual
circuit
are

connected
to

the
switch
which

provides
a

warning
via
the

warning
light
on
the
instrument

panel
when
a

pressure
difference

of
13
17

kg

sq
cm
185
242Ib

sq
in
occurs
between
the

front
and
rear
brake

systems
The

switch
cannot
be

repaired

and
must

be
renewed
if

faulty

FRONT
DRUM
BRAKE
Removal

1
Jack

up
the
front
of

the
vehicle

and

support
it
on
stands

2
Remove
the
brake
drum
and
the
hub

cap
and
hub

assembly

3
Disconnect
the
brake

pipe
at
the
bracket
on
the
front

suspension
strut
as

previously
described
in
the
section

FRONT
SUSPENSION

4
Unhook
the
two
return

springs
shown
in

Fig
L
5
and

remove

the
brake
shoes

5
Disconnect
the

bridge
pipe
3
in

Fig
L
6
and
remove

the

two
wheel

cylinders

6
Take
out

the
installation
bolts
and
withdraw
the
brake

backplate
from
the

spindle

FRONT
DRUM

BRAKE

Inspection
and
Overhaul

Examine
the
brake
drums
for

scoring
and
out
of
round

The
maximum

permissible
inner
diameter
of
the

drums
must

not
exceed
228
6mm
9
00
in
and
out

of
round
should
be

below
0
02mm
0
0008in

The
brake
shoe

linings
must
re
renewed
when
worn
down

to
a
thickness
of
1
5mm
0
06

in
or
below
Renew
the

linings
if

they
are
contaminated
in

any
way
or

incorrectly

seated
The

complete
set

of

linings
must

be

replaced
if
any

single
lining
is

unsatisfactory

O1eck

the
shoe
return

springs
and
if

they
have
become

weakened

replace
them

Withdraw
the

pistons
and

springs
from
the
wheel

cylinders

and

inspect
the
bore
of
the

cylinders
for

signs
of

wear

corrosion
or

damage

Renew
the

cylinder
and
the

piston
if
the
clearance
between

the
two

exceeds
O
15mm

0
006

in
Renew
the
rubber
boots

and

cups

FRONT
DRUM
BRAKE

Assembly
and
Installation

Assembly
and
installation
is
a
reversal
of
the
removal
and

dismantling
procedure
noting
the

fOllowing
points

Apply
a
thin

layer
of

special
grease
to

the
piston

cup
and

other
rubber

parts
when

assembling
the
wheel

cylinder
The

internal

components
of
the

cylinder
should
be

dipped
in
brake

fluid
and
assembled
whilst
still
wet
Install
the
wheel

cylinders
on
the
brake

backplate
and

smear
the

cylinder
backplate
and

cylinder
lever
fulcrum
with

grease
Fig
L
8

Tighten
the

backplate
mounting
bolts
to
a

torque
reading

of
2
7
3
7

kgm
19
5
26
71b
ft

Adjust
the
brake
shoes
and
bleed
the

hydraulic
system
as

described
under
the

appropriate
headings

REAR
DRUM
BRAKE
REMOVAL

Fig
L
IO

Jack

up
the
vehicle
at
the
rear
and

support
it
on

stands

Remove
the
road
wheel

2
Release
the
handbrake
remove
the
clevis

pin
3
from
the

rear
wheel

cylinder
lever
4
see

Fig
L
9
Disconnect
the

handbrake
cable
2
and
remove

the
return

spring
I

3
Remove
the
brake
drum
Remove
the
shoe
retainers
the

return

springs
and
brake
shoes

Fig
L
II

4
Disconnect
the
fluid
line
from
the
wheel

cylinders
and

plug

the
opened
end
to

prevent
to
loss
of
fluid

5
Remove
the
dust
cover

adjusting
shims
and

plates
then

remove
the
wheel

cylinder
from
the

backplate

6
The
brake

backplate
and
axle
shaft

assembly
can
be
with

drawn
if

necessary
by
taking
out
the
four

flange
bolts

and

removing
the

assembly
as
described
in
the
section

REAR
AXLE
AND
REAR
SUSPENSION

REAR
DRUM
BRAKE

Inspection
and
Overhaul

The

inspection
and
overhaul

procedures
fpr
the
rear

drum

brakes
are
similar
to

those

previously
described
for
the
front

drum
brakes

Tighten
the
brake

backplate
mounting
bolts
to
a

torque

reading
of

3
9
5
3

kgm
28
38Ib
ft

FRONT
DRUM
BRAKE

Adjusting

Jack

up
the
vehicle
and

pump
the
brake

pedal
several
times

With
the
brake
drum
installed
turn
one
of

the
adjusting
cams

clockwise
until

the
brake
shoe
is
in
contact
with
the
drum

This

operation
is
carried
out
from
the
rear
of

the
backplate

When
the
brake
shoe
contacts
the
drum
turn
the
cam
in

the

opposite
direction
until
the
shoe
is

just
clear
and
the
brake

drum
can
be
rotated

freely
by
hand

Repeat
the

operation
on
the
other

adjusting
cam
and
then

depress
the
brake

pedal
to
make
sure
that
the
brakes
are

working

correctly
The

adjusters
must
be
released

slightly
if
the
brake

drum
binds
when
turned

by
hand

Fig
L
12
shows
the

adjusting

cams

REAR
DRUM
BRAKE

Adjusting

Jack

up
the
vehicle
at

the
rear
and

pump
the
brake

pedal

several
times
Turn
the
brake
shoe

adjuster
Fig
L
13
until
the

101

ALTERNATOR
Dismantling

Refening
to

Fig
M
16
remove

the

pulley
nut
and
take
off

the

pulley
rim
fan
and

spacer
Withdraw
the
brush
holder

retaining
screws
and
remove
the
brush
holder
cover
Withdraw

the
holder
and
brushes
as
shown
in
Fig
M
17

Slacken
and
remove
the
three

through
bolts
and

separate

the
diode

housing
from
the
drive
end
housing
by
tapping
the

front
bracket

lightly
with
a
wooden
mallet

Fig
M
18

Remove
the
screws
from
the

bearing
retainer
and

separate
the

rotor
from
the
front
cover

Fig
M
19

Remove
the
rear

bearing
from
the
rotor

assembly
with
the

aid
of
a

puller
as
shown
in

Fig
M
2D
Take
off
the
diode
cover

and
unsolder
the
three
stator
coil
lead
wires

from
the
diode

terminal

Remove
the

A
terminal
nut
and
diode
installation
nut
and

remove
the
diode

assembly
Do
not
force

the
diode

assembly

when

removing
or
it

may
be

damaged
Remove
the
stator
from

the
rear
cover

ALTERNATOR

Inspection

Use
an

ohmmeter
as

shown
in
Fig
M
21
to
test

the
rotor

field
coil

Apply
the
tester
between
the

slip
rings
and
check
that

the
resistance
is

approximately
4
4
ohms
at

normal
ambient

temperature
Check
the

conductivity
between

slip
ring
and
rotor

core
as
shown
in

Fig
M
22
if

conductivity
exists
the
field
coil

or

slip
ring
must
be

earthing
and
the
rotor

assembly
should
be

renewed

Cbeck
the
stator
to
ensure
that
there
is

conductivity

retween
the
individual
stator

coil
terminals
as
shown
in

Fig
M

23
If
there
is
no

conductivity
between
the
individual
terminals

the
stator
is
defective

Check
each
lead
wire

including
the
neutral
wire
as
shown

in

Fig
M
24
If
there
is

conductivity
between

any
wire
and
the

stator
COTe

the
stator
core

is

earthing
and
the
stator
must

be

replaced

Diodes

Three

positive
diodes
are
mounted
on
the
positive
plate

and
three

negative
diodes
are
mounted
on
the

negative
plate

The
diodes
allow

current
to
flow
in
one
direction

only
The

diodes
on
the

positive
plate
only
allow
current
to
flow
from

the
terminal
to
the

positive
plate
whilst
the
diodes
on
the

negative
plate
only
allow
current
to
flow
from
the

negative

plate
to
the
terminal
A
diode
which
allows
current
to
flow

in
ooth
directions
or
does
not

allow
current
to
flow
in
the

correct
direction
is
unserviceable
and
all
six
diodes
must
be

replaced
Use
a
tester
as
shown
in
Figs
M
25
and
M26
to
check

each
diode

Brushes

Check
the
movement
of
the
brushes
in
their
holders
The

brushes
should
move

freely
and
can
be
eased
in
necessary
by

carefully
ming
the
sides
Oean
the
brush
holders
before

replacing

the
brushes
Renew
the
brushes
if

they
are
worn
below
a
length

of
7mm
0
275
in
With
the
brush

projecting
approximately

2mm
0
08
in
from
the
holder
it
is
possible
to
measure
the

brush

spring
pressure
using
a

spring
balance
as
shown
in

Fig
M
27

The

pressure
of
a
new
brush
should
be
255
345

grammes

9
0
12
2
oz
the

pressure
will
however
decrease

by
approxi

mately
20

grammes
per
I
amm
0
039

in
of
wear

ALTERNATOR

Assembly
and
Installation

Asssembly
is
a
reversal
of
the

dismantling
prQcedure
noting

the

following
points
The
stator
coil
lead
wires
must
be
resoldered
to
the
diode

assembly
terminal
as

quickly
as

possible
or

the
diodes

may
be

damaged
When

installing
the
diode
A
tenninal
make
sure

that

the

insulating
bushing
and
tube
are

correctly
fitted

The

pulley
nut
should
he

tightened
to
a

torque
reading
of

350
400

kg
cm
301
344Ib
in
Mount
the

assembly
in
a

vice
as
shown
in

Fig
M
28
and
when
the

pulley
is

tightened

make
sure
that
the
deflection
of
the

pulley
groove
does
not

exceed
O
3mm
m
o
118

in

ilEA
D
LAMPS

Replacing

All
weather

type
sealed
beam

headlamp
units
are
fitted
to

the
vehicle
Each

lamp
is
of
the
double
fIlament

type
with
a

full
beam
filament
of
50W
and
a
dipped
beam
filament
of
40W

The

replacement
of
the
sealed
beam
unit
can

be
carried

out
as
follows

Remove
the

wiring
socket
from
the
back
of
the

headlamp

unit
On

Coupe
models
withdraw
the
screws

attaching
the

front

grille
to
the
radiator
core

support
On
all
other
models

remove

the
three

retaining
screws
and
remove
the

headlamp
rim

Withdraw
the
three

retaining
screws

securing
the

retaining

ring
3
in

Fig
M
29
and
remove

the
sealed
beam
unit

When

installing
a
new
sealed
beam
unit
make
sure
that
the

Top
mark
on
the
ring
is

uppennost
when
fitted

HORNS

The
circuit
for

the
horns
is
shown
in

Fig
M
30
The
horns

can
be
adusted
for
v01ume
and
tone
in

the

following
manner

Remove
the
connector

and
the

retaining
nut
in

the
centre

of
the
horn
withdraw
the
horn
from
the
vehicle
Connect
a

voltmeter
and
ammeter

into
circuit
as
shown
in

Fig
M
3I
Set

the
switch
to
ON
and
check
that
the
voltmeter
shows
a

reading
of
12
to
12
5
volts
The
sound
can
be

regulated
by

turning
the

adjusting
screw

Fig
M
32
A

reading
of

2
5

amps

should
be
obtained
for
the
flat

type
of
horns
or
5
0

amps
for

the

spiral
type
of
horns

Turning
the

adjusting
screw
clockwise
will
increase
the

current

turning
anti
clockwise
decreases
the
current

Install
the
horns
in
the
vehicle
and
check
that
the
correct

sound
can
still
be
obtained
when
the

higher
voltage
of
14
15

volts
is

generated
by
the
alternator
Turn
the

adjusting
slightly

if

necessary
then

tighten
the
locknut

INSTRUMENT
PANEL
Removal

The
instrument

panel
holds
the
various
meters

and

indicators
A
printed
circuit
board
is
located
at
the
rear
of
the

panel
and
the
connections
to
it
are

multiple
connectors
When

the

panel
is
remove

the
instruments
are

easily
withdrawn
for

inspection
and

servicing

Disconnect
the

battery
negative
terminal

2
Remove
the
windscreen

wiper
switch

lighting
switch
and

choke
control
knobs

by
pressing
them
in
and

turning

anticlockwise
Remove
the
escutcheon

3
Disconnect
the

cigarette
lighter
cable
at
the
rear
of
the

instrument

panel
and
turn

the

cigarette
lighter
outer
case

so
that
it
can
be
removed

115

pulley
should
be

aligned
with
the
T
mark
on
the
chain
cover

Install

the
cylinder
head

assembly
Coat

the

cylinder
block

side
of
the
head

gasket
with

sealing
agent
Three
Bond
No
4

or

equivalent
but
take
care
that

the
scaling
agent
does
not

enter

the

cylinders

Tighten
the
head
bolts
in
several

stages
to
a

torque
reading

of
8

0
to
9

0

kgrn
58
to
65
lb

ft
Tighten
the
bolts
to
the

sequence
shown
in

Fig
A

IB

Pull
the

timing
chain
out
of
the
chain
cover
and
set
it
on

the
camshaft

sprocket
so
that
the

timing
marks
are

aligned
then

place
the

sprocket
and
chain
on

the
camshaft

Install
the
distributor
drive

gear
on
the
camshaft
and

tighten
the
bolt
to
a

torque
reading
of
4
5
to

5
5

kgrn
32
6
to

39
8
lb
ft
Note
that
the
camshaft
bolt
has
a
left
hand
thread

Adjust
the
valve
clearances
as
described
under
the

appro

priate
heading
Fit
the
rubber

plugs
at
the
front
and
rear
of
the

cylinder
head

taking
care
to

apply
sealing
agent
to
the
rear

plug

Install
the
chain

adjusting
screw
and

adjust
the
tension

of
the
chain
in

the

following
manner

Rotate
the
crankshaft
clockwise
to
establish
the
correct

chain
tension
screw
the

adjusting
screw

fully
home
then
back

it
off

by
half
a
turn

and
secure
with
the
locknut

Install
the
valve
rocker
cover
and
fit
the
water

pump
Note

that
one
of
the
water

pump
mounting
bolts
also
secures
the

generator
adjusting
arm

Install
the
bracket
and
alternator
water

pump
pulley
fan

blades
and
fan
belt

Tighten
the
fan
bolts
and
lock
each
pair

of
bolts

together
using
wire
inserted
through
the
holes

provided

in
the
bolts

Install
the
oil
filter
and
fit
the
rocker
cover
hose
Install

the
distributor
so
that
the
vacuum
control
unit

and
rotor

arc

positioned
as
shown
in

Fig
A
19

Oil
the
distributor
driven

gear
Fit
the
breather

assembly

the
clamp
of
the

pipe
is

tightened
together
with
the
exhaust

manifold
Install
the

spark
plugs
and
connect
the

high
tension

leads

Install
the
exhaust
manifold
Fit
the
head
shield

plate
and

engine
slinger
and

tighten
them

together
Note
that
the
exhaust

manifold

gasket
must
be
fitted
with
the
steel

plate
facing
the

manifold
Install
the
clutch
as
described
in
the
section
CLUTCH

Remove
the

engine
from
the

mounting
stand
and
install

the
gearbox
intake
manifold
and
carburettor
stater
motor

engine
mounting
oil

pressure
warning
switch
etc

Fill
the

engine
and

gearbox
to
the
correct
levels
with

recommended
oils
and
refill
the

cooling
system
Adjust
the

ignition

timing
and
carburettor

as
described
in
the

appropriate

sections

VALVE
CLEARANCES

Adjusting

The
valves
clearances
can

be
adjusted
in
a
similar
manner

to
the
instructions

given
for
the
L14
LI6
L18

engines

Initially
adjust
the
clearances
with
the

engine
switched
off
and

cold
to

0
2
mm
0
0079

in
for
both
intake
and
exhaust
valves

Set
the
final
clearances
to
0
28
mm
0
011
in
for
both
intake

and
exhaust
valves
with
the

engine
warmed
up
to
its
normal

operating
temperature
OIL
PUMP

The

gear
type
oil

pump
is

chain
driven
from
a

sprocket
on

the

crankshaft
The

pump
can

be
removed
in
the

following
manner

1
Remove

the

sump
plug
and
drain
the

engine
oil
Remove

the
distributor
as
described
in
the
section
IGNITION

2
Remove
the

cylinder
head

assembly
fan
belt
crankshaft

pulley
and

oil

sump

3
Take
off
the
chain
cover
with

oil
fl

inger

4
Remove
the
oil

pump
and
crankshaft

sprockets
with
the

drive
chain
then
withdraw
the

pump
after

removing
the

four

mounting
bolts

Separate
the
cover
from
the

body
by

unscrewing
the
four

securing
bolts
and
withdraw
the
drive
and
idler

gear

assemblies
Unscrew
the
threaded

plug
and

take
out

the

relief
valve
and

spring

Clean
the

parts
thoroughly
and

inspect
them
four

signs

of
wear
or

damage
Check

the

following
clearances

Gear
backlash
0

1
to

0
5
mm
0
0039
to

0
0195

in

Side
clearance
between

gear
and

body
0
016
to
0
15
mm
0
0006
to

0

0059
in

Clearance
between

drive
shaft
and

body
0
016
to
0
1
mm
0
0006
to

0
0039
in

Clearance
between

drive
shaft
and
cover
0
02
to
0
1
mm
0
00078
to

0
0039
in

Clearance
between

idler

gear
and
idler
shaft
0
016
to

0
1
mm
0

0006
to

0
0039
in

Assembly
is
a
reversal
of
the

dismantling
procedures
taking

care
to

position
the
gears
so

that
the
dotted
mark
is
towards
the

cover

Install
the

pump
and

adjust
the
tension
of
the
drive
chain

by
ph
otting
the
pump

body
as

shown
in
Fig
A
20

When
the

chain
is

correctly
tensioned
it
should
be

capable
of
a
deflection

of
2
0
to

3
0
mm

0
079
to

0
118
in
as

indicated

OIL
PRESSURE
RELIEF
VALVE

The

pressure
relief
valve
shown
in

Fig
A
21
is
not

adjustable

This
valve

regulates
the
oil

pressure
to
4
55
4
85

kg

sq
cm

64
7
69
0
lb

sq
in
and
when

opened
allows
the
oil
to

by
pass

through
a

passage
in
the

pump
body
and
return
to
the

sump

Check
the
free

length
of
the

spring
which
should
be
64
0

to
66
0
mm
2
51
to
2
60
in
The

compressed
length
should

be
50
mm
at

7
8
to

9
7

kg
1
96
in
at
17
2
to
21
4Ibs
Renew

the
spring
if

necessary

OIL
FILTER

The
oil
filter
is
of
the
full
flow

type
with
a

replaceable

element
and

incorporates
a

by
pass
valve
in
the
cover

Oil

leaks
can
be
corrected

by
replacing
the

body
centre

shaft
or
cover

gaskets
The

body
and
centre

shaft

gaskets
should

always
be
renewed
after

dismantling
the
filter

S
1

carrying
out

extensive
tests

with
the

necessary
equipment
The

hoses
and
connectors
can
of
course
be
checked
for

signs
of

leakage
and
corrected
as

necessary
Also
the
tension
of
the
air

pump
belt

IGNITION
TIMING
AND
IDLING
SPEED

Emission
control

system

The

ignition
timing
should

be
set
and
the

idling
speed

mixture

adjusted
in
the

folloWing
manner

Run
the

engine
until
it
reaches
its
normal

operating
tem

perature
Connect
an

ignition
tachometer
and

timing
light
observ

ing
the
manufacturers
instructions

NOTE
If
the
vehicle
is

equipped
with
automatic
transmission

make
sure
that
the

dashpot
does
not

prevent
the
throttle
from

closing
Turn

the
throttle
shaft
arm

adjusting
screw
anti
clock

wise
so
that
the

tip
of
the
screw

is
clear
of
the
throttle
shaft

arm
see

Fig
A

26

Turn
the
throttle

adjusting
screw
to
set
the

idling
speed
to

700
r

p
m
650

rpm
for

automatic
transmission

Adjust
the

ignition
timing
to
5
A

T
D
C
Refererence
should
be
made
to

the
instructions

given
in
the
section
IGNITION
SYSTEM
for

the
L14
L16
and
LI8

engines
for

ignition
timing
details

Turn
the

idling
adjustment
screw
and

throttle
adjusting
screw

until
the

engine
runs

smoothly
a
t
the
correct

idling
speed
Turn

the

idling
adjustment
screw
clockwise
until
the

engine
speed

starts
to

drop
as
a
weaker
mix
ture
is

obtained
Now
turn

the

idling
adjustment
screw
anti
clockwise

by
one
turn
one
and
a

half
turns
for
automatic

transmission
to
obtain
a
richer
mix

ture

Adjust
the

idling
speed
to
700

rpm
650

rpm
for

automatic

transmission

by
turning
the
throttle

adjusting
screw
Make
sure

that
the
ignition
timing
remains
at
50
A
T
D

C

Turn
the
throttle
shaft
ann

adjusting
screw
clockwise
until

the

tip
of
the
screw

just
contacts

the
throttle
shaft
ann
The

screw
must
not
exert

pressure
on
the
throttle
shaft
arm

EMISSION
CONTROL
SYSTEM
Maintenance

The

system
should
be

inspected
and
serviced

every
I
2

months
or
20
000
km

12
000
miles
whichever
comes
fIrst
to

make
sure
that
the
exhaust
emissions
are
maintained
at
the

minimum
level

Check
the
carburettor
choke

setting
and

adjust
as
described

in
the
section
FUEL

SYSTEM

Check
the
carburettor

idling
speed
mixture

and

adjust
if
necessary
as
described
under
the

heading
IGNITION

TIMING
AND
IDLING
SPEED

in
this
section

2
Check

the
distributor
earn

dwell

angle
and
also
the
condi

tion
of
the
contact
breaker

points
Check
the

ignition

timing
and

adjust
if

necessary
The

distributor
dwell

angle

should
be

adjusted
to
49
55

degrees
and
the

points
gap
to

0
45

0
55
mm
0
0177
0
0217
in

3
Remove

and
clean
the

sparking
plugs
Renew

any
plug
with

badly
worn
electrodes
Set
the

plug

gaps
to
0

80
0
90
mm

0
0315
0
0355
in

by
adjusting
the
earth
electrode

IGNITION
SYSTEM

The

maintenance
and

servicing
procedures
for

the

compo

nents
of
the

ignition
system
on

vehicles
fitted

with
the
GIS

engine
are

basically
similar
to

the
instructions

previously
given

for
the
Ll4
LI6
and
LIS

engines
The
distributor
is
however

of

a
different

type
Either
an
Hitachi
0416
57
distributor

being

fitted
or
an

Hitachi
0423
53
if

the
vehicle
is

equipped
with
an

emission

control

system
The
distributors
have
different

advance

curve
characteristics
as
shown

in
Technical
Data

IGNITION
TIMING

Check
the

ignition

timing
with
a

timing
light
as

previously

described

for
the
LI4
L16
and
L

8

engines
Disconnect

the

distributor
vacuum
line

and
run

engine
at

idling
speed
or

slightly
below
The

timing
should

be
set
at
8

BTDCj600

rpm

for
the
D416

57
distributor
or
at
5

ATDCj600

rpm
for

the

D423
53
distributor
fItted
to

engines
with
emission
control

systems

IGNITION
DISTRIBUTOR

Maintenance

Maintenance
instructions
are

similar
to
those

given
for

the
L14
LI6
and
L18

engines
Set
the
contact
breaker

points

gap
to
0
45
0
55
mm
0
0177

0
0217
in
as

previously

described

SPARKING
PLUGS

The

sparking
plugs
should
be

inspected
and
cleaned
at

regular
intervals
and
renewed
at

approximately
20
000
kIn

12
000
miles
Clean
the

plugs
thoroughly
and
make
sure

they

are
of

the
same

type
and
heat

range
File

the
centre

electrode

nat
before

adjusting
the

gap
Set
the

gap
to

0
8
0
9mm
0
031

0
035
in
if
the

engine
is
fItted
with
emission
control

system

or
to

0
7
0
8
mm
0
028

0
031
in
if
emission
control
is
not

fitted

Adjustment
must

always
be
made

by
bending
the
earth

electrode

TechnIcal

Data

GENERAL
SPECIFICATION
GI8

Engine

Cylinders

Bore
and
stroke

Displacemen
t

Valve

arrangemen
t

Firing
order

Engine
idler

speed

Compression
ratio

Oil

pressure
at

3000
r

p
m
4
in
line

85x80
mm

3
346x3
150

in

1
815
cc

110
8
cu
in

OHC

134
2

600

r

p
m
STD

8
3
I

4
7
to
5
5

kgjsq
cm
66
8

to
78
2

Ibjsq
in
LIQUID
PACKING

APPLICATION

Cylinder
block

2

Cylinder
head

Oil

gallery
blind

plug

Expansion

plug

Gas
breather

guide

Rear

bearing

cap
fitting

surface

Rear

bearing

cap
side
seal

both
ends
Expansion
plug

Rubber

plug
Rea

Manifold
heat

pipe

3
Chain
cover

gasket
both
sides

S13

Fan

coupling

Pulley
ratio
fan
and
water

pump

Tuning
data

Basic

timing

Idling
speed

Distributor
dwell

angle

Spark
plug
gap

Choke

setting

CO

percent
setting
Fan

rpm
water

pump
rpm
3
300

4
000

120
103
Ll71

50
A
T
D
C

700

rpm
650

rpm
automatic

490
550
at
0
02
in
breaker

gap

0
8IJ
0
90
mm

0
03

I
5
0
0355

in

Manual

6
0
I
0
5
air

supply
hose

disconnected

Air

pump
drive
belt

tensioning

Permissible
slackness
of
8
0
12
0

mm
0
3

15
0
4
72
in
under
a

load
of7
1O

kg
1
54
2
20
lb

IGNITION
SYSTEM

DISTRIBUTOR

Type

Firing
order

Rotation

Igntion

timing

Without
emission
control

With
emission
control

Dwell

angle

Condenser

capacity

Advance
characteristics

D416
57
distributor
Hitachi
D416
57

Hitachi
D423
53
with
emission

control

system

134
2

Anti
clockwise

80
B
T
D
C
at
600

rpm

50
A

T
D
C
at
600
r

p
m

49
to
55

degreos

0
20
0

24
1
F
Centrifugal

Start

Maximum

degree
r

p
m

Vacuum

Start

Maximum
degree
r

p
m

Advance
characteristics

D423
53
distributor

Centrifugal

Start

Maximum
degree
r

p
m

Vacuum

Start

Maximum

degree
r

p
m

IGNITION
COIL

Type

Primary
voltage

Spark
gap

Primary
resistance

Secondary
resistance

SPARKING
PLUGS

Type

Gap

Fuel

Systenl

DESCRIPTION

FUEL
PUMP

Testing

FUEL
PUMP

Removing
and

Dismantling

CARBURETTOR

Idling
adjustment

FUEL
LEVEL

Adjusting

STARTING
INTERLOCK
VALVE
OPENING

THROTTLE
VALVE
INTERLOCK
OPENING

CARBURETIOR

Removing
and

Dismantling

DESCRIPTION

A
dual
barrel
down

draught
type
carburettor
is
fitted
to

vehicles
with
the
G
18

engine
A
Stromberg

type
D3034C

carburet

tor
is
installed
on

engines
with
exhaust
emission
controL
and
a

Solex

type
DAK340
carburettor
on

engines
not

equipped
with

this

type
of

system
Both

types
of
carburettors

incorporate
a
550
r

p
m

01
50
at
I
400
16
50
at
2
800

80

mmHg

6
50
at
200

r
p
m

475
r

p
m

01
50
at
1
000
23
50
at
2
600

80
mm

Hg

30
at
120
r

p
m
go
at
400
r

p
m

Hanshin
HM
12F
or

HP5
I
OE

with
emission
control

system

12
volts

more
than
6
mm
0
2362

in

3
8
ohms
at
200C

I
1
2

I
6
8
ohms
at
200
C

NGK
BP

6E

0
7
0
8
mm
0
028
0
031
in
or

0
80
9
mm
0
031
0
035
in

with
emission
control

system

primary
system
for
normal

running
and
a

secondary

system

for
full
load

running
a
float

assembly
which

supplies
fuel
to

both

primary
and
secondary
systems
a
starting
mechanism
and

accelerator

pump
which

provides
a
richer
mixture
on
accelera

tion

SI7

Clamp
the

flange
and
bolt

assembly
in
a
vice
Push
the

rear

shell
and
stud
assembly
down
and
turn
it
anti
clockwise

to
release
Take
care
not
to

drop
the

valve
body
and

di

phrd

gm
plate
which
will
be
detached
at
the
same

time

Remove
the
retainer
and
detach
the

bearing
and
seal
from

the
rear
shelL
A

needle
can
be
used
to
remove

the
retainer

Pull
the
diaphragm
from
the

groove
in
the

diaphragm
plate

Remove
the
valve

body
guard
and
the
air
silencer
See

Fig

0
8
Remove

the
valve

plunger
stop
key

Fig
D
9
detach

the
valve
rod
and

plunger
assembly
and
the
air
silencer

fllter
from
the
valve

body
and

diaphragm
plate
Pull
out
the

reaction
di
c

To
dismantle
the
front
shell
and
stud

assembly
first
pull

out

the

push
rod
then
remove
the

plate
and
seal
and
the

check
valve

MASfER
V

AC
SERVO
UNIT

Assembling

inspect
the

components
and

replace
any
which
show
signs

of
wear
or

damage
As

previously
stated
the

repair
kit
contains

a
number
of
items
which
must

be
used
to

replace
the
original

parts
Assembly
is
a

reversal
of
the

dismantling
procedure
but

the
following

components
should
be
lubricated
with
silicon

grease

Grease
the

lip
and
face
of
the
seal
the
lip
of
the

poppet

both
faces
of
the
reaction
disc
Grease
the
diaphragm
edge
in

contact
with
the
front
and
rear
shell

Grease
the
face
of
the

plate
and
seal

assembly
which
con

tacts
the
front
shell
and
push
rod
the
face
of
the
check
valve

in
contact

with
the

packing
and
also
the
push
rod
at
the

point

of
contact
with
the

diaphragm
plate

Check
the
clearance
between
the
master

cylinder
and
push

rod
after
assembling
The
clearance
should
be
4
0
0
5
0
mm

ot
575
0
0197
0
in
and
can
be

adjusted
if
necessary
by

altering
the
length
of
the

push
rod
Installation
of
the
Master

Vac
unit
is
a
reversal
of
the
removal

procedure

HANDBRAKE
CABLES

Removing

The
cables
of
the
mechanical
handbrake
See

Fig
D
3
can

be
removed
in
the
following
manner

Front
cable

1
Release
the
hand
brake
and
disconnect
the
front
cable

by

removing
the
clevis

pin
1
in

Fig
D
I
0
at

the
handbrake

equalizer
Screw
out
the

adjusting
nut
2
to
disconnect

the
cable
from
the
handbrake
lever

2

Straighten
the
cable

clamp
I
in

Fig
D
II
and

pullout
the

the
lock

plate
2
to
extract
the
cable
from
the
retainer

3
Detach
the
cable
outer

casing
from
the
handbrake
control

bracket
then

pull
out
the
front

cable

Control
Stem

Removal
of
the
control
stem
is
a

straight
forward

opera

tion
Refer
to

Fig
D
12

and
take
out

the
clevis

pin
I
connect

ing
the

yoke
2
to
the
lever

3
Remove
the
clevis

pin
4
secur

ing
the

guide
5
to
the
bracket
6
then
withdraw
the
control

stem

S34
Re
lf
rnble

Remove
the
nut
from
the

adjuster
and
disconnect
the

left
hand
rear
cable

Disconnect
the
rear

cables
from
the
wheel

cylinders
Refer

to

Fig
D
13

pull
out
the
lock

plates
1
and
2
andremove

the
clevis

pin

HANDBRAKE
CABLES

Inspection
and
Installation

lnspect
the
cables
and

replace
them
if

any
of
the
wires

have
broken
Cables
which
have
stretched
must

be
renewed
as

it
will
no

longer
be

possible
to

adjust
the
handbrake

correctly

Check
the

springs
and
renew
them
if

they
have
weakened
or

broken

Oteck
the
centre
lever
trunnion

pin
and

equalizer
and

replace
as

necessary

Installation
is
a
reversal
of
the
removal

procedure
Grease

all

sliding

parts
and

adjust
the
handbrake
as
described
below

HANDBRAKE

Adjusting

Release
the
handbrake
and

adjust
the
rear
brake
shoes
as

described
under
the

appropriate
heading

Adjust
the
front
and
rear
cables
to

give
a
handbrake
lever

stroke
of
85
to

95
mm
0
35
to
3
74
in

by
setting
the

adjust

ing
nuts
shown
arrowed
in

Fig
D
14

BRAKE
PEDAL

Adjusting

Adjust
the

length
of

the
master
cylinder
push
rod
until

the
brake
pedal

pad
is
set
to
a

height
of
187
0
mm
7
36
in

with
the
brake

light
switch
free
from
the

pedal
stopper
Lock

the

push
rod

by
tightening
the
locknut

l
in

Fig
D
15
Screw

in
the
brake

light
switch
until
the
screwed
shaft
of

the
switch

makes
contact

with
the

stopper
brJ
cket
bolt
then

retighten
the

locknut

Adjust
the

stopper
bolt
2
until
the
brake

pedal
pad
is
set

to
a

height
of
183
0
mm

7
2
in
then

retighten
the
locknut

The

full
stroke
of
the
brake

pedal
should
now
be
set
to
150
0

mm
5
9
in

The
brake

lamps
should

light
up
when
the

pedal
is

depressed

15
0
mm
0
6
in
see

Fig
D
16

Lubricate
all
sliding

parts
with

bearing
grease

REAR
DRUM
BRAKE

Adjusting

Jack

up
the
vehicle
at

the
rear

and
release
the
handbrake

Depress
the
brake
pedal
several

times
and
turn
the

adjuster

clockwise
until
the
drum
is
locked
See

Fig
D
I
Turn

the

adjuster
in

the

opposite
direction
until
the
shoes
arc

just
dear

of
the
drum
and
the
wheel
can
be

turned

freely
by
hand

Repeat
the

operation
on
the
other

adjuster
and
then

depress

the
brake

pedal
to
make
sure
the
brakes
are

working
correctly

BLEEDING
THE
HYDRAULIC
SYSTEM

Refer
to
the
section
BRAKING
SYSTEM
for
L14
Ll6

and
LIS

engines
and
follow
the
instructions

given
under
the

appropriate
heading