1969 DATSUN 610 ECU

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

Gean
all

parts
thoroughly
and
renew
if

damaged
If
the

column
shaft
or

jacket
is

excessively
damaged
the

steering
gear

housing
must

be
checked
A

damaged
bearing
must

be

replaced

together
with
the
column

jacket
assembly

Assembly
is
a

reversal
of
the

dismantling
procedures
The

column
shaft

journal
should
be
lubricated
with

multipurpose

grease
which
can
also
be
used
to
fill

up
the
dust
cover
Grease

the
needle

bearing
when

assembling
the
universal

joint
Use

the

tightest
snap

ring
available
when

fitting
the
needle

bearing
Snap

rings
are

supplied
in
oversizes
of
0
95
mm
05
mm
and
1

5

mm

0
0374
0
0413
and
0
0453

in

Installation
of
the
column

assembly
is
a
reversal
of
the

removal

procedures
Tighten
the
rubber

coupling
bolts
to
a

torque
reading
of
I
S
to
1
8

kgm
I
0
8
to

13
0
Ib
ft
Refit
the

steering
wheel
and

tighten
the
nut
to
a

reading
of
4
0
to
5
0

kgm
28
9
to
36
2Ib
ft

RACK
AND
PINION
AND
TIE
ROD

Removing
and

Dismantling

1

Jack

up
the
vehicle
and

support
it
on
stands
Remove
the

road
wheels

2
Slacken
the
bolts

connecting
the

pinion
to
the

steering

lower

joint
See
Figs
C

16

3
Remove
the
bolts
from
the
steering
column
rubber
coupl

ing
See

Fig
C
15
and
remove
the

splash
board

Fig
C
17

4

Remove
the
tie
rod
ball
stud
nut
and
disconnect
the
tie

rod
from
the
knuckle
arm

Fig
C
I8

5
Lift
the

engine
slightly
with
suitable
tackle
but
take
care

not
to

damage
the
accelerator
or
remote
control

linkage

Remove
the
bolts

securing
the
steering
gear
housing
to
the

suspension
member
Withdraw
the
rack
and

pinion

assem

bly

Dismantle
as
follows

Detach
the

steering
lower

joint
from
the
rack
and

pinion

assembly
Clamp
the
unit
in
a
vice

taking
care
not
to

damage

the

steering
gear
housing

Refer
to

Fig
C
16
and
take
off
the
dust
cover
and
boot

clamps
at

both
sides
Slacken
the
stopper
nut

remove
the
tie

rod
inner
socket
and
disconnect
the
tie
rods
from
the
rack

Withdraw
the

spring
seat
and
tie

rod

spring
Take
off
the

steering

gear
boots
at
both
sides
Slacken
the
locknut
and

disconnect
the
tie
rod
outer
socket
from
the
ball

Slacken
the
locknut
remove
the
retainer

adjusting
screw

and
withdraw
the
steering

gear
retainer
See

Fig
C
19

Take
off
the
oil
seal
remove
the
snap
ring
and
withdraw

the

pinion
Remove
the

snap
ring
and
withdraw
the

bearing
from

the

pinion
Remove
the
filler

plug
and
take
out
the
rack
Remove

the

grease
reservoir

Clcan
all

parts
thoroughly
and

replace
any
which
show

signs
of
wear
or

damage
Check
the
axial
play
of
the
inner

and

outer
ball

joints
The

play
should
be
0
06
mm
0
0024
in
for

the
inner
ball
joint
and
from
0
1
to
0
5
mm
0
0039
to
0
0197

in
for
the
outer

joints
Use
a

spring
balance
to
check
the
force

required
to

swing
the
ball

joints
this
should
be
between
0
8
to

LS

kgm
5
8
to
10
8Ib
ft
Renew
the
oil
seal
Examine
the
retainer
and

tie
rod

springs

and

compare
them
with
the
values

given
in

Figs
C
20
and
c
n

RACK
AND
PINION
AND
TIE
ROD

Assembling
and
Adjusting

Press
the

bearing
on
to

the
pinion
gear
and
fi
t

the
tigh
test

snap
ring
available

Snap
rings
are

supplied
in
the

following
over

sizes

Snap

Ring
Thicknesses

1
04
to
1
09
mm
0
0409
to
0
0429
in

1
09
to
I
14
mm

0
0429
to
0
0449
in

1

14toI19mm
0
0449toO
0469in

Ll9
to
1
24
mm

0
0469
to
0
0488
in

1

24
to
1
29
mm
0
0488
to
0
0502
in

Clamp
the

steering
gear
housing
in
a

vice
Grease

the
teeth

and
friction
surfaces
of
the
rack
with

multipurpose
grease

Lubricate
the

gear
housing
from
the

pinion
housing
side

Ensure
that
the
rack

projects
by
an

equal
amount

of

96
mm

3
8
in
in
both
ends
of
the

housing
with
the
rack

teeth

directed
towards
the

pinion
shaft

Grease
the
pinion
teeth
end

bushing
and

pinion
bearing

Engage
the
tccth
of
the

pinion
with
the
rack
and
insert
the

pinion
Make
sure
that
the

bushing
does
not
become
damaged

The
rack
must

project
from
the

housing
by
an

equal
amount

at
each
side
with
the

groove
on
the

pinion
serration

facing

upwards

Fit
the

snap
ring
into
the
housing
groove
to
hold
the

bearing
outer
race

in

position
The

snap
ring
must

fit

tightly

and
can
be
selected
from
the

following
oversizes

Snap
Ring
Thicknesses

LS5
to

1
60
mm
0
0610
to
0
0630
in

1
60
to
1
65
mm
0
0630
to
0
0650

in

1
65
to
I
70
mm
0
0650
to
0
0669
in

1
70
to
I
75
mm
0
0669
to
0
0689

in

Fit
the
oil
seal
Use
a
dial

gauge
as

shown
in

Fig
C
22
to

check
the
thrust

play
of
the
pinion
The

play
should
be
less

than
0
09mm
0
0035
in

Grease
the
retainer
and
insert
it

with
the
spring
Tighten

the
retainer
adjusting
screw

fully
then
back
it
off

by
20
to

25

degrees
Tighten
the
locknut
to
a

torque
reading
of
4
0
to

6
0

kgm
28
9
to
43
4lb
ft
Coat
the
locknut
with

liquid
pack

ing
Three
Bond

When
the
rack
and

pinion
is
assembled
measure
the
force

required
to
rotate

the
pinion
and
also
the

preload
of
the
rack

Use
a

spring
balance
as
shown
in
Figs
C
23
and
C
24
and
check

that
the

pinion
torque
is
8
to
20

kg
cm
7
to
17
Ib
in
and
the

rack

preload
is
from
8
to
18

kg
17
6
to
39
7Ibs
Take
care

to
slide
the

assembly
over
the

complete
range
of
the
stroke

Fit
a
dust
cover

clamp
at

each
end
of
the
housing
Install

the

stop
nut
on
the
threads
of
the
rack

Liberally

grease
the
ball
joint
friction
area
of
the
tie
rod

assembly
Assemble
the
spring
and
ball
seat
and
fit
the
inner

socket

part
of
the
tie
rod

assembly
to
the
rack
Make
sure
the

boot
is

positioned
at
the
ball
stud
end
Note
that
the
left
hand

tie
rod
is
marked
with
an

L
the

right
hand
rod
is
not
marked

527

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

ENGINE

t
Main

bearing
cap
bolt

Connecting
rod
bolt

Flywheel
bolt

Crankshaft
nut

Cylinder
head
bolt

Camshaft

centre
bolt

Spark
plug

Oil
mtef
centre
bolt

Water

pump
blind

plug

Carburettor
bowl
set
screw

Rocker

cover

securing
screw

FRONT
SUSPENSION
Tlght
enlna

Torques

10
11

kg
m
72
3
79
5Ib
ft

4

5
5

kg
m

32
6
36
2Ib
ft

10
11

kg
m
72
3
79
5

Ib
fL

15
20

kg
m

l08
5
144
6Ib
ft

8
9

kg
m
57

9
65
1
Ib
fl

4
5
5
5

kg
m

32
6
39

81b
ft

3
4

kg
m
21
7
28
9Ib
ft1

2
8
3

2

kg
m

20
3
23
21b
ft

1
5
2

kg
m

l0
9
14
5Ib
ft

0
15

0
2

kg
m
Ll
I
4lb
ft

0
33
0
4

kg
m
2
4
2
9

lb
ft

Front
wheel

spindle
nut
3
3
5

kg
m
21
7
25
3
Ib
ft

Front

disc
brake
back

plate

to
strot

assembly
2
7
3
7

kg
m

19
5
26

7Ib

ft

Disc
brake

calliper
fixing

bolts

7
3
9
9

kg
m

52
8
71
6Ib
ft

Disc
brake
rotor

fixing
bolts
3
9
5
3

kg
m
28
2

38
3
Ib

ft

Stabilizer

fixing
bolts

transverse
link
bracket
side
1
2

1
7

kg
m

8
7
12
3Ib
fl

Stabilizer

fixing
bolts

frame
bracket
side
1
9
2

5

kg
m

13
7
18
1
lb
ft

Compression
rod
to
frame

bracket

bolts
7
2
9
6

kg
m
52
1
69
2Ib
fl

Compression
rod
to
transverse

link
bolts
4

9
6
3

kg
m
35
4
45

6
lb
ft

Strut

assembly

upper
support

nuts
3
9
5
2

kg
m
28
2
37
6Ib
ft

Steering
knuckle
arm
to

strut

assembly
6
0
8
0

kg
m
43
4
57
8Ib

ft

Transverse
link
to

suspension

cross

member
fixing
nut
12
2
13
5

kg
m
88
2
87

6Ib
ft

S36
Lower
ball

joint
to
transverse

link

fixing
nut

Lower
b
JH

joint
stud
nut

Suspension
aoss
member

mounting
boils

Engine
mounting
bracket

bolts

Piston
rod
self

locking
nut

Gland

packing

Wheel
nuts

BRAKING
SYSTEM

Fulcrum

pin
of
brake

pedal

Connection
of
brake
tube

Rotor

fixing
bolts

Wheel

cylinder
fixing
bolts

Studs
side

Hexagon
side

Bridge
tube

Brake
hose
to
wheel

cylinder

Calliper
to
knuckle

t1ange

Disc
to
knuckle

flange

Spindle
nut

STEERING

Steering
wheel
nut

Rubber

coupling
bolt

Lower

join
t
bolt

Retainer
locknut

Side

rod
inner
socket

stopper
nut

Side

rod
locknut

Side
rod
ball
stud
nut
1
9
5

kg
m
l3
7
18
llb
ft

7
6

kg
m
139
8
1

0
Ib
ft

1
9
2
5

kg
m

13
7

18
1
lb
ft

1
3
1
7

kg
m

9
4
1
3Ib
ft

6
0
7
5

kg
m
43
4
54
2Ib
ft

6
0
6
5

kg
m

43
4
47
0
Ib
fl

8
0
9
0

kg
m
57
8
65
I
Ib
ft

3
5
4
0

kg
m
25
3
28
9

Ib
fLl

1
5
1
7

kg
m

10
8
1
3
lb
ft

3
9
5
3

kg
m
28
2
38
3
Ib

fL

0
5
0
7

kg
m
3
6
5
1Ib

fL

1
5
2
1

kg
m

l0
8
15
2Ib
ft

I
7
2
0

kg
m
l2
3
14
5Ib
ft

17
2
0

kg
m
l2
3
14
5Ib
ft

73
9
0

kg
m
52

8
i5
1
Ib
ft

2
7

3
7

kg
m
l9
5
26
8Ib

ft

3
0
3
5

kg
m
21
7
25
3lb
ft

1
5
1
8

kg
m

10
8
13
0
Ib
ft

4
5

kg
m
28
9
36

2
Ib
ft

4

6

kg
m
28
9
43
4
lb

ft

8
10

kg
m
52
8
72
3Ib
ft

9

kg
m
65

llb
ft

5
5
7
6

kg
m
39
8
54
9Ib
ft