1969 DATSUN 610 compression ratio

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

Accelerator

pump

Piston
diameter

Pump
discharge

Outer
hole

position

Middle
hole

position

Inner
hole

position

Pump
nozzle
diameter

Main
nozzle

diameter

Primary

Secondary
14
0
mm
0
551
in

0
2
cc

per
stroke

0

4
cc

per
stroke

0
6
cc

per
stroke

0

5
mm
0
020

in

2
3
mm
0
0906
in

2
8
mm
0
110
in

Throttle

valve

fully
closed

angle

Primary
10

degrees

Secondary
20

degrees

Idling
opening
5

degrees
approx

Choke
valve

fully
closed

angle
10

degrees

Throttle

opening
at
full
choke
13
5

degrees

FUEL
PUMP

Type

Delivery
Electric

1400
cc
in
one
minute
Emission

control

system

Air

pump
bracket
to

cylinder

head
nut

Adjusting
bar
to
bracket
bolt

Air

pump
to

bracket
bolt

Air

pump
to

adjusting
bar

nut

Anti
backfrre
bracket
to

rocker

cover
0
4Q
0
65

kgm
2
94
7
lb
ft

Anti
backfire
valve
to

bracket
0
4Q
O
65

kgm
2
94

7
lb
ft

Sensing
hose

clamp
to
rocker

cover
0
4Q
0
65

kgm
2
M
7
Ib
ft

Air

gallery
to
exhaust
manifold

plug
5
Q
6

0

kgm
36
243
4lb
ft

Check

valve
to
air

gallery
9

0
10
5

kgm
65

1
75
9Ib
ft
1
6
2
4

kgm
I
1
6
17
4Ib
ft

1
6
2
4

kgm
I
1
6
17
4Ib
ft

1
6
2
4

kgm
I
1
6
17
4
lb
ft

1
6

2
4

kgm
11
6
17
4Ib
ft

Front

SuspensIon
SteerIng

Description

Steering
Maintenance

Wheel
hub
and

bearing

Stabilizer

Spring
and
strut

assembly

Transverse
link
and
lower
ball

joint

Suspension
member

Front
wheel

alignment

Steering
wheel
and
column

Rack
and

pinion
and
tie
rod

Collapsible
steering

DESCRIPTION

The
front

suspension
is
of
the
strut

type
with

the
coil

spring
and

hydraulic

damper
units
mounted
on
the
crossmember

and
transverse
link

assembly
See

Fig
C
I
Vertical
movement

of
the

suspension
is
controlled

by
the
strut

assembly
Forward

and
rearward
movement
is
absorbed

by
compression
rods
6

and
side
movement
controlled

by
the
transverse
links
Front

suspension
servicing
procedures
are
similar
to
those

given
for

vehicle
fitted
with
L14
Ll6
and
LIB

engines
and
can

be
carried

out

by
reference
to

the
instructions

given
in
the

appropriate

section
Camber
and
castor

angles
are

preset
and
cannot

be

adjusted
and
a

check
must

be
made
for

signs
of

damage
to

the

suspension
system
if
the

angles
do
not
confonn
to
the

figures

given
in
Technical
Data

The

steering
is
of
the
direct

acting
rack
and

pinion

type

See

Fig
C
2
A
rubber

coupling
which
absorbs
vibration
and

two
universal

join
ts
are

incorpora
ted
between
the

steering
wheel

and

gear
assembly
The

collapsible
type
of

steering
column

assembly

Fig
C3
is
an

optional
fitting
A
full

description
of
this

type
of

assembly
i

given
in
the

Steering
section
for
L14

L16
and
L18

engines

STEERING
Maintenance

The

steering
system
should
be
lubricated

every
two

years

or
50
000
km
30
000
miles
whichever
comes

fIrst

A
lithium
base

multipurpose
grease
must
be
used
for
the

rack
and

pinion
and
rack
and
tie
rod

joints
The

plug
on
the

steering
gear
housing
should
be
removed
and
a

grease
nipple

fitted
so
that
the
recommended

quantity
of
10
to

15

gram

0
35
to

0
53
oz
of

grease
can
be

injected
Remove
the

grease

nipple
and

replace
the
plug
when
lubrication
is

completed

The

grease
reservoir
on
the
tube
side
should
be

replenished
when

the
level
of

grease
falls
to

approximately
one
third
ofits

capacity

WHEEL
HUB
AND
BEARING
Removal
and
Installation

Wheel
hub
and

bearing
servicing
procedures
are
similar
to

those

previously
given
for
vehicles
fitted
with
L14
LI6
and
LIB

engines

S23

Remove

the
road
wheel
and
disconnect
the
brake
hose
at

the
connector
as

shown
in

Fig
C
4
of
this
section

Remove
the
brake

calliper
assembly
and
hub

cap
Withdraw

the
cotter

pin
and
remove
the
wheel

bearing
locknut

Remove
the
wheel

bearing
washer
and
take
off

the
hub

and
brake
disc

Fig
C
5
Remove
the

bearing
collar
take
out

the
outer

bearing
cage
and

prise
out

the
hub

grease
seal
Remove

the
inner
bearing
cage
and
drive
out
the
outer
races

of
the
inner

and
outer

bearings
using
the

special
drift
ST49120000

if
avail

able

Separate
the
brake
disc
from
the
hub
by
taking
out
the

retaining
bolts
as
shown
in

Fig
C
6

Installation
is
a

reversal
of
the
removal

procedure
Adjust

the
wheel

bearings
as

previously
described

taking
care
to

tighten
the
wheel

bearing
locknut
to
the

specified

torque
read

ing
of
3
0
to
3
5

kgm
21
7
to
25
3lb
ft
Turn
the
hub

several
times
to
settle
the

bearing
then
retighten
the
nut
to
the

same

figure
Slacken
the
locknut

by
a

quarter
turn
900
and

insert
the
cotter

pin
when
the
hole

in
the

spindle
is
aligned

with
the
hole
in
the
nut
Check
that
the
force

required
to
turn

the
hub
is
less
than
7
0

kg
cm
97
2
in
oz

STABILIZER
Removal
and
Installation

Remove
the

splash
board
and
take
off
the
bolts
I
in

Fig
C
7
which
attach
the
stabilizer
at

the
transverse
link
sides

Remove
the
bolts

attaching
the

stabilizer
bracket
2
to

the
frame
then

withdraw
the
stabilizer

Check

the
bar
and
rubber

components
for

signs
of
deforma

tion
or

damage
and
renew
as

necessary

Installation

is
a
reversal
of
the
removal

procedures
Tighten

the

fixing
bolts
to
a

torque
reading
of
1
2
to
I
7

kgm
8
7
to

12
3
lb
ft
at

the
transverse
link

side
and
1
9
to
2
5

kgm
13
7
to

18
llb
ft
at
the
frame
bracket

SPRING
AND
STRUT
ASSEMBLY

The

spring
and
strut
assembly
can
be
serviced

by
following

the
instructions
previously
given
for
the
assemblies
on
vehicles

fitted
with
the
L14
L16
and

Ll8engines

When

reassembling
make
sure
that
the

parts
shown
in

Fig
C
8
are

thomughly
greased
Installation
of
the

assembly

will
be

accomplished
more

easily
if
the
dust
cover
on
the
bonnet

ledge
is
removed

Tighten
the
nuts
and
bolts
to
a

torque
figures
given
in

TIGHTENING

TORQUES

TRANSVERSE
LINK
AND
LOWER
BALL
JOINT

The
transverse
link
and
lower
ball

joint
can
be

removed
in

a

similar
manner
to
the

parts
on
vehicles
fitted
with
L
14
L
16

and
L
18

engines

Renew
the
link

if
cracked
or

damaged
in

any
way
Check

the

measurement
A
in

Fig
C
9
The
measurement
between

front
and
rear
transverse

link
bushes
should
be
less
than
1
0
mm

0
039
in

Replace
the
bushes
if

necessary
The

lower
ball

joint

should
be

replaced
if
the
axial

play
of
the

joint
exceeds
0
03

to
0
6

mm
0
0012
to
0
0136

in
A

grease
nipple
must

be
installed

in

place
of
the
ball

joint

plug
so

that
the

joint
can
be
lubricated
with
multi

purpose
grease

as

previously
described

SUSPENSION
MEMBER

Removing
and

Installing

Jack

up
the
vehicle
and

support
it
on

stands

2
Remove
the

splash
board
Refer
to

Fig
C
I
0
and
detach

the

compression
rod
I
the
stabilizer
2
from
the
trans

verse
link
3
Detach

the
steering
linkage
from

the
suspen

sion
crossmember
4

3
Take
out

the
nuts

attaching
the
transverse
links
and
remove

the
links
at
both
sides
of
the
vehicle

4

Support
the

engine
with
a
hoist
as
shown
in

Fig
C
II

taking

care
not
to

damage
the
throttle
and
remote
control

linkages

and
then
remove
the

engine
mounting
bolts
at
both
sides

5
Remove
the

bolts
shown
arrowed
in
Fig
C
12

and
lift
the

suspension
member

away

Renew
the

suspension
member
if
it
is
cracked
or

deformed

in

any
way
Installation
is
a
reversal
of
the
removal

procedure

FRONT
WHEEL
ALIGNMENT

As

previously
stated
the
castor
and
camber

angles
are

preset
and
cannot

be

adjusted
A

thorough
check

should
be

made
of
the

steering
and

suspension
system
and
all
defective

parts
renewed
if

the

angles
are

incorrect
See
Technical

Data

The
front
wheels
should
toe
in

12
to

15
mm
0
4
7
to

0
59

in

Adjustment
can
be
carried
out

by
slackening
the
locknuts

1
in

Fig
C
13
and
then

turning
the
tie

rods

by
an

equal
amount

until
the
correct
toe

in
is
achieved
A
toe

in
gauge
will
of
course

be

required
for
this

operation

STEERING
WHEEL
AND
COLUMN
Removal

Disconnect
the
horn
wire
and
remove
the
horn
bar
Remove

the

steering
wheel
nut
and

pull
off
the

steering
wheel

2
Remove
the
turn

signal
and

lighting
switch

assembly
followed

by
the

steering
column
shell
covers

3
Remove
the
bolts
from
the
rubber

coupling
to

disconnect

the
lower

joint
See

Figs
C
14
and
C

I
5
if
the
car
is

fitted
with

right
hand
drive
The
lower
joint
upper
bolt

should
be
removed
to
disconnect
the

joint
if
the
car

is

fitted
with
left
hand
drive

4
Remove
the
cotter

pin
from
the
trunnion
and
disconnect

the

gearchange
rod
and
selector
rod

5
Remove
the

steering
column

upper
clamp
and
take
out
the

bolts

securing
the
lower

plate

STEERING
COLUMN

Dismantling
and

Assembling

Remove
the
C
washer
socket
screw
and

upper
bracket

bolt
Remove
the
lower
bracket
bolts
and
detach
the
remote

control

linkage
from
the
column

assembly

Remove
the

snap
ring
at
the

top
of
the
column
and
extract

the
column
shaft
from
the

jacket

Disconnect
the
rubber
coupling
from
the
lower

joint

then
remove

the
snap
ring
and
dismantle
the
lower
joint

S25

Tighten
the
inner

socket
until
the
ball
seat
is
at

the
rack

end
then
back

off
the
socket

by
30
to

40

degrees
and

tighten

the

stop
nut

to
a

torque

reading
of
8
0
to
10
0

kgm
57
8
to

72
3
Ib
ft
as

shown
in

Fig
C
25

With
the

tie
rod
assembled
measure
the
force

required
to

swing
the
tie
rod
Hook
a

spring
balance
at
the
end
of

the
rod

as
shown
in

Fig
C

26
and
check
that
the
force
is
from
3
0
to

6

0

kgm
6
6
to
13
2
lb
Measure

the
stroke
of
the

rack
which

should
be
73
0
mm

2
874
in
Fit

grease
nipples
at
both

ends
of
the
rack
and

pinion
housing
Apply
multipurpose
ase

to
each

joint
until

a
small

quantity
of

grease
appears
at

the
out

let

hole
in
the
boot
Do
not
use
an
excessive

amount
of

grease

The

pinion
housing
should

be
lubricated
until
a
small

quantity

of

grease

appears
between

rack
and

housing

Remove

the

grease
nipple
and
fit
the

plug
Fit
the
boot

Fill

the
grease
reseIVoir
with

grease
and
attach
it
to

the
rack

housing
Adjust
the

length
of

the
tie
rods
at
both

sides
as

des
ribed
under
FRONT
WHEEL

ALIGNMENT

Assemble
the

steering
lower

joint
to
the

rack
and

pinion

and

tighten
the
lower

joint
bolt
to

a

torque
reading
of
4
0
to

5
0

kgm
29
0
to

36
0
Ib
ft
Installation
of

the
rack
and

pinion
assembly
is
a
reversal

of

the
removal

procedure

COLLAPSIBLE

STEERING

Removi
8
and

Dismantti
8

The

steering
coluJllfl
See

Fig
C
3
can
be
removed

in
a

similar
manner
to
the
standard

type
of
column

Take
care
not

to

drop
the
column

when
it
is
removed
from
the

vehicle
or
the

shaft

may
collapse
Do
not
exert

any
pressure
on

the
column
or

the
bellows
may
be
defonned
To
dismantle

proceed
as
follows

Remove
the

retaining
wire
and

pull
out

the
lower
shaft

Disconnect
the
control

linkage
if
the
vehicle
is
fitted
with
auto

matic
transmission
Slide
the

steering
shaft
bracket

away
With

draw
the

screws
and

separate
the

upper
and
lower
tubes

Assembly
is
a
reversal
of

the

dismantling
procedure
Note

that
the
slot
in
the
universal

joint
must
be

aligned
with
the

punch

mark
at
the

top
of
the

upper

steering
shaft
as
shown
in

Fig
C
28

When

installing
the
column
make
sure
that

the
bellows
do
not

become
bent
of
twisted

as
the

clamp
and
bottom

plate
bolts

are

tightened

TechnICal
Data

TYP

Gear
I1ltio
Rack
and

pinion

17
8
I

Steerin
column
shaft

spring
Wire
diameter

Freelenath

CoiltW
llJ

Load

length

Retainer

sprinJ
dimension
Wire
diameter

F

CoilturnJ

l
oadxlensth

Side
rod

SPrina
dimeruion
Wire
diameter

Fn
elenath

Coil
turns

Load
x

lensth

Side
rod
inner
ball

joint
ax
ia
I

play

Side
rod

outer
ball

joint
uiaJ

play

Pinion

thrultplay

Retainer
float

play

Rack
moke

Side
rod
inner
ball

joint

swinsinl
torque

Side
rod
uter
ball

joint

swingina
torque

Pinion
oration

torque

Rack

pre1
d

Wheel

alipment
1IIl1a
a
ondition

Cut

c
m

Kinl
pin
inclination

Toe
in

S
In

teerinlan

eOut
10
40

8005

12

15
mm
0
47
0

59
in

38024

35036
2
9

mm
0
11
2
in

36
5
mm

1
4370
in

3

25q
551
18mm
0
7087

2

6
mm
1
102in

26
3
mm
1
035
in

5
5

20

kl
lbs

16
3

mm
0
642
in

26
mm

0
102

in

19
0
mm
0
748

in

6
3

40

q
88Ibs
17
0

mm
0
669
in

0
06
mm
0
002
m

0
1
0
5
mm

0
0039
0

0197
in

less
than
0
3
mm
0

0118
in

0
09
mm
0
0035
in

73
mm
t

2
87
in

0
8
1

5

q
m

5
8
10

8Ib
n

0
8
J
S

kg
m
5
8
JO
8Ib
ft

8

20q
7
17
lb

in

8
18

q
l7
6
39

7Ibs

Strut

DlelDbly

Strut
outer
Ilia

50
8
mm

2
0
in

Piston
rod
di
a

20
mm

0
787
in

Cylinder
inner
dia
30mm
I
181
in

Dampinl
force
at

pistonlpeed

0
3
m
I

1
08
ft
I

Expansion
67

IOq
I47
7
221bs

Compression
25

4kl
55
1

8
81bs

Shock
absorber
inner

cylinderlcngth
IOmm
16
1

in

R
IlD
vchicle

LH
D

ehide

CoiIsprina

LIi
IlIi
OOIh

Wire
diameter
mm

in
12
0
472
12
0
472
12
0
472

Coil
diameter
mm
in

130
5
12
130
5

12
130
5
12

Coil
Ium
S

Coil

effective
turnl

6
5
6
5
6
5

Free

lenJth
mm
in
371
5
14
6
386
5
15

2
371
5
14
6

Installed
hei
ht
load

mmq
180
270
200

270
180
270

in
lb
7
1
594
7

9
594
7
1
594

SpriDgCOfl
ltant

ka
mm

1
45
US
1
45

529

1