1968 DATSUN 510 seat adjustment

CHAPTER

TWELVE

DIFFERENTIAL
REAR
AXLE
AND
REAR
SUSPENSION
149

DIfferentIal

Rear
axle
and

suspension

Codspnng

Shock
absorber

Rear

suspensIOn
arm

Rear
axle

shaft
Wheel

beanngs

Seals

Rear

spnng

Axle
case

SpecificatIons

CHAPTER
THIRTEEN

FRONT

AXLE
FRONT
SUSPENSION
AND
STEERING
168

Wheel
hub
and

bearmg

StabilIzer

TenSion
rod

Spnng
and
strut

assembly

Transverse
lInk

Lower
ball

Jomt
Front

suspension
adjustment

Wheel

alignment

Posture

adJustment

Steenng
system

SpeCificatIons

CHAPTER
FOURTEEN

BRAKES
187

Brake

pedal

Master

cylInder

Front
diSC
brakes

Rear
brakes

Front
drum
brakes
Wheel

cylInders

Brake

system
bleedIng

Handbrake

Service
data
and

speCificatIons

CHAPTER
FIFTEEN

BODY
ELECTRICAL
SYSTEM

Wmng

SWitches
and
fuses

Instrument

meters
and

panels

Heater
205

Wmdshleld

wipers

Wmdslueld
washers

Headlamps

WIrIng
diagrams

CHAPTER

SIXTEEN

BODY

223

Front

body
trIm

Bumpers

Hood
lock
control

Doors
Door
locks
and

regulators

Trunk
lId
and

rear

bumper

Seats

Tad

gate

INDEX

235

I

ENGINE
AND
IGNITION
TUNE
UP
4

25

block
the
throttle
and
choke
m
the
WIde

open

position

3
Remove
all
four

spark
plugs

4

Sequentially
press
a

compressIOn
test

gauge

mto
each
of
the

spark
plug
holes
and
crank
the

engme
for
at
least
four
strokes
Record
the
com

pressIOn
readmg
for
each

cylmder
Standard

compressIOn
readmg
IS
171
Ibs
m
12
0

kg
cm
Mmlmum

acceptable
readmg
IS
159

lbs
m
2

11
5

kg
cm

5
No

readmg
should
be
less
than
80
of
the

highest
cylmder
reading
ExceSSive

vanatiC
ns

between

cylmders
accompanied
by
low

speed

mlssmg
of
the

cyhnder
or

cylmders
that
read

low

usually
mdlcates

a
valve
not

properly
seat

mg
or
a
broken

piston
ring

Low

pressures
even

though
uniform

may

mdicate

worn

nngs
ThIS

IS

especlall
true
1f
ex

cessive
011

cQIlsumptlon
has
been
noticed
If
one

or
more

cylmders
read
low

or
uneven

inject

about
a

tablespoon
of

engine
ail

on

top
of
the

piston
of

that

cylinder
and
crank
the

engine

several
tlmes

noting
the

compressIOn
reading

If

compressIOn
has
nsen
the

piston

nngs
or

cylmders
are
worn
and
should

befserviced
If

compressIOn
has
not

unproved
after

addmg
oil

the
valves
are

Stlcking
or
are
not

seating

prop

erly

If
two

adjacent
cylmders
have
low

compres

sion
and

mjectmg
01

9es
not
increas
the
read

mg
the
head

gasket
between
the

cylmders
IS

probably
leaking

VALVE
CLEARANCE
ADJUSTMENT

Valve

adjustment
should
be
done
in
two

steps
first
With
the

engme
cold
and
then
at

operatmg
temperature
Refer
to

Figure
6

and

proceed
as
follows

1
Remove

arr
liter

2
Remove
rocker

arm
cover
Take

care
not
to

damage
the

gasket

3
Remove
the

spark
plugs
and

rotate
the
en

gine
unt1l
number
1

cylinder
IS
at

top
dead
center

o
l
the

compressIOn
stroke
This
can
be
de

tepnmed
w
hen
the

top
dead
center
mark
on

the
crankshaft

pulley
is

m

alignment
With
the

statIOnary

pomter
and
both
valves
for

number

1

cylmder
are
closed

I
4

Counting
from
the
front
of
the

engme
ad

Just
valves
1
2
3

and
5
as
follows
Loosen
the

pivot
lockmg
nut
and
turn
the

pivot
screw
unt1l

clearance
between
the

pivot
screw
and
the
rock

er
ann
IS
0
0079

m
0
200mm
for
the
mtake

valves
and

0
0098
in
0
25mm
for
the

exhaust

valves
Check

clearances
With

a
feeler

gauge
as

shawn
When
correct

tlghten
the

pivot
locking

nut

l

1

5
Rotate
the
crankshaft
unt1l
the
number
4

pISton
IS
at

top
dead

center
an
the

compressIOn

stroke
This

IS
one

complete
revolution
of
the

crankshaft

Agam
the
0

degree
mark
should

align
With
the

pomter
and
both

valves
on
num

ber
4

cylinder
should
be
closed

6

Adjust
valves
4
6
7
and
8

as
above

i

I

7

Replace
spark
plugs
Ignition
WIres

r
ick
r

1

arm
cover

gasket
and
air
filter

8
Start

engine
and

run
it
unt1l

operating
tem

perature
IS
reached

9
Remove
rocker

ann
cover
and

repeava
iius

ment
Clearances
should
be

0
0098

m
0

25fumj

for
the

mtake
valves
and
00Il8
m
0
30mi

for
the
exhaust
valves
Check
clearances
before

loosening
the

pivot
lockmg
nuts
as

they

may

already
be

properly
set
If

not

adjust
as
re

quir
l

ADDmONAL

CHECKS

l

Qunng
tune

ups
check
the

followmg
Ite

far

SignS
of
defects

or
excessive
wear
I

i

1

Inspect
the
carburetor
for

buildup
of

foreign

matenal

Pay
Special
attention
to
the

throat
and

linkages
Clean
or
overhaul
as

required
Det8
1ls

for
carburetor
mamtenance
are

given
in

Chapter

seven

FUEL
SYSTEM
69

CARBURETOR

The
carburetor
IS
an
Hltach1

Type
DAF328

Several
varIations
are
used

dependmg
on
the

model

year

type
of
transmissIOn
and
the
emIS

SIon
control

system
The
dIfferent
models
are

the
same
as
far
as
basiC

operation
IS
concerned

Therefore
the

followmg
dISCUSSIon
covers
a

typIcal
carburetor
The

automatIc
choke
IS
used

on
automatIc
transmISSIon
and
1972
models

only
All
other
chokes
are
manual

Refer
to

Figure
8
The
carburetor
conSIsts
of

a

pnmary
system
used
m
normal

runnmg
and
a

secondary
system
used
for

hIgh
speed
or

heavy

load

operatIons

CARBURETOR
ADJUSTMENT

Idling
Adjustment

Idle

adjustment
IS
made

by
the
throttle

adjust

and
Idle

adjust
screws
both
of
wh1ch
are
located

at
the
bottom
of
the
carburetor

1

Screw
the
Idle

adjust
screw
all
the

way
in

to

the

fully
closed

pOSItIon
Do
not
over

tIghten

CD

6
2
Unscrew
the
Idle

adjust
screw

approXImately

three

cor
nplete
turns

3
Screw
m
the
throttle

adjust
screw
two
or
three

turns
and
start
the

engui
e

4
Screw
out
the
throttle

adjust
screw

slowly

until
the
onset

roughness
followmg
a

gradu81

speed
drops

5
Screw
m

the
Idle

aOJust
screw
untIl
the

engme

runs

smoothly
at
the

hIghest

speed

6

Readjust
the
throttle
screw
to

drop
the

engme

speed
Repeat
these

adjustments
untIl
a
smooth

engme
speed
at
the

proper
Idle

rpm
IS
ach1eved

Refer
to
the
tune

up
chapter
for

proper
rpm

Fuel
Level

Adjustment

Constant
fuel
level
IS
mamtamed

by
the
float

and
the
needle
valve

Figure
9
sb
ws
the
fuel

level

system
wlthm
the
carburetor
If
the
level
IS

at
the
lIne
on
the

f
lel
reservOir
level
is

properly

set
If
not

adjust
It

by
bendmg
the
float
seat

Adjust
the

gap
between
the
valve
stem
and
the

float
seat
to
00591
m

1
5mm
with
the
float

fully
luted

up
by
bendmg
the
float

stopper

1213141516

20

I

h

r

1
Secondary
main

nozzle

2
Secondary
small
venturi
10

Secondary
bypass
hole
18

Primary
slow
air
bleed

3

Secondary
main
air
bleed
11

Secondary
throttle
valve
19
Air
vent

4

Secondary
slow

Jet
12
Choke
valve
20
Level

gauge

5

Secondary
slow
air
bleed
13

Primary
main
air
bleed
21

Primary
main

Jet

6
Needle
valve
14

Primary
main
nozzle
22
Idle
limit
screw

7
Float
15
Economizer
bleed
23
Idle
hole

8

Secondary
emulSion
tube
16

Primary
slow

let
24

Bypass
hole

9

Secondary
main

Jet
17

Primary
economizer
25

Primary
throttle
valve

70

CHAPTER

SEVEN

CD
1
Float
seat

2
Roat
3

Roat

stopper

4
Needle

valve

Starting
Interlock
Valve

Opening
Adjustment

Figure
10
shows

the
Interlock
valve

openmg

mechanISm
The
choke

valve
at
a
full

closed

pOSItion

automatIcally
opens
the

throttle
valve

at

a
16

degree

angle
for

startlng
ter
reassem

bly
or
to
set
the
interlock

opening

angle
bend

the

choke

connectlng
rod

so
that

a

fully
closed

choke

valve
will
leave

a
clearance

of
0
0512
m

1
3mm
between
the

choke
valve
and
the
throt

tle
chamber
ThIS

IS
shown

as
dImension
A
in

Figure
10

@

7

1
Crank

rod
6
Choke

connecting
lever

2
Choke

crank
le
er
7
Throttle
lever

3

Choke
lever
8
Throttle
chamber

4
Choke
VBI
e
9
Throttle
lever

5
Choke

connecting
rod
Interlock

Opening
of

Primary
and

Secondary
Throttle
Valves

Refer
to

Figure
11
The

primary
throttle

valve

should
be
at
a

degrees
When
the

adjust

plate

I

fixed
to
the

pnmary
throttle

valve
IS

open
to
a

degrees
It
comes
In
contact

WIth
the

connecting

lever
at

pOInt
A

When
the
throttle
valve
is

opened
further
where

the

connectIng
lever
IS
in

contact
With
the

stopper

POInt
B
the
connect

mg
lever
detaches

and
the

secondary
system
is

actllated
The

lInkage
between
the

pnmary
and

secondary
throttles

operates
properly
if
the
dis

tance

6etween

theilirotlle
valve
anainner
will

of
the
throttle
chamber
G
amounts

to
the
fol

lowmg
a

degrees
IS
59

degrees
DImenSIon
G

IS
03583
In
910mm

Figure
12
shows

the

measurement

bemg
checked

@

2

Secondary

I

1

Connecting
le
er

2
Return

plate

3

Adjusting

plate
4
Throttle

chamber

5
Throttle
valve

I

1

I

r

t
i
t
r

1
I

j

I

00

I
r
@

162

CHAPTER
TWELVE

14
Coat
the
front
bracket

pm
and

bushmg
and

shackle

pm
and

bushing
With
a

soap
solution

pnor
to

assembly

15
The
front

pm
secunng
nut
and
shock
ab

sorber
lower
end

securmg
nut
should
be

re

tightened
after

the
vehicle

is

sittmg
on
the

ground

16

Make
certaJn
the
shackle

bushmg
flange
is

clamped
evenly
on
both
Sides

SHOCK
ABSORBER

REMOVAL
INSPECTION
AND

INSTALLATION

WAGON

1
Jack

up
the

center
of
the
rear
axle
and

sup

port
th
e
axle

housmg
With
stands

2
Reinove
the

lower
end
of
the
rear
shock

absorber
from

spring
seat

3
Loosen
the
four
bolts

secunng
the

upper

bracket
to

body
Remove
shock
absorber
and

upper
bracket

4
Check
shock
absorber
for
leaks
and

cracks

Check
the
shaft
for

straighmess

Replace
1f

defective

5

Inspect
rubber

bushmgs
for

damage
cracks

and

general
condition

Replace
1f
defective

6
Install
the
shock
absorber

by
reversing
the

procedure
used

durmg
removal

DIFFERENTIAL

pICK
UP

The
dlfferenl1al

carner
IS
made

up
of
alum

mum

alloy
and
uses
a

hyp01d
bevel

gear

Proper

lubncatIon
IS
essenl1al
Check
and

replemsh
the

lubncant

every
3
000

mlles
Drain
and
refill

every
30
000
inlles

Figure
30
IS
a
cross
sectional

View
of
the

pick

up
dIfferential
Difterential
Removal

Pick

up

1
Jack

up
the
rear
wheels
and

support
vehicle

With
stands

2
DIsconnect
dnve

pmlOn
companlOn
flange

to

yoke
connectIon

3
Remove

rear
axles

as
descnbed
later
m
thIS

chapter

4
Remove
dlfferenl1al

gear
assembly

Difterential

Inspection
Pick

up

The

followmg

mspection
can
be
done
Without

disassembly
of

the
d1fferenl1al
If
abnormahties

or

damage
eXiSts
refer
further
serVice
and

reparr

to

your
dealer

1
Check
the

tooth
contact

pattern
WIth
lead

OXide
at
two
or
three

pomts
after

remoVlDg
rear

cover
Refer
to

FIgure
5
for

correct
contact

pattern
If
the

pattern
IS

faulty
disassembly
and

adJustment
of
the
dIfIerentialIs

required

2
Measure
backlash
between
dnve

gear
and

pmlOn
With
a
dial
mdlcator
Backlash
should

be

00051
to
0
0071

m
013

to
0
18mm

3
Rotate
the

gears
and
lISten
for

SignS
of
bear

mg
noise

4

Inspect
gear
teeth
for

SIgnS
of

damage
or

cracks

Difterential
Installation

Pick

up

Install
the
differential

by
reversmg
the

pro

cedures
used

dunng
removal

REAR
AXLE
AND

SUSPENSION

pICK
UP

The

rear
axle

IS
of
the

semi

floatIng
type
The

rear
wheels

use

tapered
roller

beanngs
Figure

31

IS
a
cross
sectional
view
of
the
rear
axle

REAR
SUSPENSION

TORQUE
TIGHTENING

SPECIFICATIONS
WAGON

Shock

absorber

upper
bracket
to

body
bolts

Shock
absorber
to

upper
bracket

lock
nuts

Shock
absorber

to
lower
bracket
lock
nuts

Rear

spnng
U
bolt
nuts

Shackle
nuts

Front

pm
nuts

Front
bracket

flxmg
nuts

Brake
dISC
to
rear

housmg
bolts

DifferentIal
carner

to
axle

housmg
bolt

Dnve
shaft

flange
nuts
11
to
18
ft
Ib
1

5
to
2
5

kg
m

12

to
16

ft
db
17
to
2
2

kg
m

25
to
33
ft
Ib
35
to
45

kg
m

43

to
47
ft
Ib
60
to
6
5

kg
m

32
to
36
ft
Ib
45
to
50

kg
m

32
to

36
ft
Ib
45
to
5
0

kg
m

13
to
17
ft
Ib
18
to
23

kg
m

20
to

28
ft
Ib
28

to
3
9

kg
m

14
to
16
ft
Ib
20
to
2
2

kg
m

20
to
28
ft
Ib
28

to
3
9

kg
m

FRONT
AXLE
FRONT
SUSPENSION
AND

STEERING
177

5
Check
front
hub
for
cracks
and

damage
Re

place
1f
defectIve

6
Check
thrust

bearmg
for
wear

damage
rust

and
ease
of
rotatIon

Replace
1f
defectIve

Front

Suspension
Installation

1
Remstallation
is
the
reverse
of

removal

2

Apply
hght
coatIng
of
multI

purpose
grease

to
all

shdmg

parts

3
Install

bushmg
carefully
so
that

grease
groove

IS
on
the

upper
Side
and
the

bushmg
Joint
is
faced

rearward
Remove

grease
mpple
and
dn11

grease

hole

through
bushmg
through
hole
With
an

0
1181

m
3mm
dn11
Remove
metal

shaVlDgs

and
burrs
Ream
the
mner
d1ameter
of
the

bushing
to
07878
to
0
7888
m
20
010
to

20035mm

4
Install
thrust

bearmg
so
that
the
covered
face

Side
is

upward

5
Push

up
the
bottom
of
the

spmdle
hghtly

Measure
clearance
and
select
a

spmdle
shim
to

prOVide
the

followmg
clearance

standard
Clearance
0
001
In

004mm

ShIms
are
available
m
vanous
thicknesses

6
FIt

kmg
pm
and
make
certam
It

operates

smoothly

7

Apply
sealer
to
new

plug
and
install

8
Install

bearmg
outer
race
Fill
wheel
hub
and

hub

cap
With
multI

purpose
grease
Fill

space

between
wheel

bearing
rollers

and

grease
seal

hp
pocket
With
multI

purpose
grease
Make
cer

tam
wheel

beanngs
are
coated

completely

9

Apply
multI

purpose
grease
to

spmdle
shaft
wheel

bearmg
washer

and
to
the
wheel

bearmg

lock
nut

10
Make
certam
that
no
dIrt
or

foreign
matenal

IS

permitted
m
contact
with

parts
or

grease

dunng
assembly

Wheel

Bearing
Adjustment

1
Install

spindle
nut
and

torque
to
23
1
to
24
6

ft
lb
3
2
to
3

4

kg
m

2
Turn
wheel
hub

a
few
tImes
m
both
the
clock

Wise
and
counterclockwISe
directIon
Recheck

the

spmdle
nut

tighmess

3
Back
off

spmdle
nut
from
40
to
70

degrees

until
hole
m

spmdle
and
nut
COinCIde
Insert

cotter

pm
and
bend
over
around
nut

4
Turn
wheel
hub
a
few
turns
in
both
d1rectIons

to
seat

bearmg
Check
the

startmg
torque
of
the

hub
With
a

spring
gauge
as
shown

Figure
20

Startmg
torque
should
be
as
follows

New

Beanng
and
Seal
130
In

Ib
or
less

15
kgl
an

or
less

i

Used

Beanng
and
Seal
6
1
In
Ib
or
less

7
kgl
an
or
less

5

ReadJust
spmdle
nut
as

necessary
to
achieve

proper
startmg
torque
When
correct
mstall
the

hub

cap

Front

Suspension
Pick

up

Durmg
the

followmg
procedures
refer
to

FIg

ure
4
at
the

begmning
of
this

chapter

Front

Suspension
Removal

1
Jack

up
the
vehicle
and

support
It
With
stands

2
Remove
wheels
Remove
front
axle
as

pre

Viously
described

3
Remove
brake
hose
from
wheel

cylinder

CHAPTER
SIXTEEN

ThIS

chapter
provides
infOrnl8tion
and

pro

cedures
for
removal

adJustment
and
or
re

placement
of
various

body
components
in

cluded
are
the

hood
front
trinl
doors
seats

locks

bumpers
tail

gates
and
door
and
window

controls
The
illustrations

given
are

typical
of

the
sedan
the
station

wagon
IS
similar
Details

on
the

pick
up
are

given
in

separate
illustrations

Other

body
repairs
require
special
knowledge

CD
L

BODY

and
tools
and
should
be

referred
to

your
Datsun

dealer
or
local

body
shop

FRONT
BODY
TRIM
AND

BUMPERS

Figure
1
next

page
is

an

exploded
diagram

of
the

body
tnm
and

bumper
for
the
sedan

Figure
2
shows
the
front

bumper
on
the

pick
up

Refer
to
the
illustratIons
and

remove
and

replace

1
Front

bumper

2

Bumper
stay

3
Front
member

INDEX

A
Inspection
and

repair
191

Air
cleaner
Pad

replacement
190

Exploded
views
63
64
Piston
seal

replacement
193

Removal
and

replacement
62
Reassembly
and
installation
193

Removal
190

Air

pump
40

Brakes
front

pick
up

Alternator

Brushes
104
Adjustment
201

Diode
103
Exploded
View
195

Disassembly
98
ServiCing
194

SpecdicatIons
194
203
204

Exploded
Views
41
99

Brakes
rear

pick
up

Inspection
and

repair
101

Adjustment
202

Output
checks
104

Exploded
View
195

Reassembly
104

Servicing
194

Removal
40
98

Brakes
rear
sedan
and

wagon

Rotor
102

Adjustment
202

Stator
102

Exploded
view
194

Axle
removal

pick
up
175

Inspection
and

repair
193

Reassembly
194

B
Removal
and

disassembly
193

Breaker

points
110

Ball

JOint
lower
sedan
and

wagon
174
Bumpers

Battery
Exploded
view
front

pick
up
223

Inspecllon
aiii
I

servicing
21
Exploded
View
front
sedan
and

wagon
224

SpeCific
gravity
21
Exploded
view
rear
sedan
230

Body
Exploded
view
rear

wagon
231

Body
Irlm
and

bumpers
223
224

Door
lock
and

regulator
225

C

Doors
225

Hood
lock
control
225
Camshaft

Seats
228

DeSCription
34

Tail

gate
228

Exploded
view
37

Trunk
hd
and

bumper
228

Inspection
48

Brake

pedal
Reassembly
54

Inspection
and

repair
187

Sprocket
53

Installation
188

Tlmmg
chain
57

Removal
187
Carburetor

Brakes
Cleaning
and

inspection
75

Adjustment
201
202
Dash

pot
adjustment
71

Bleeding
196

DesCription
37
69

Brake

pedal
187
Disassembly
71

Front
diSC
sedan
and

wagon
190
193

Exploded
Views
74
75

Front
drum

pick
up
194
Fuel
level

adjustment
69

Handbrake
197
201

Idhng
adjustment
69

Master

cyhnder
188
Interlock
valve
70

Rear

pick
up
194

Reassembly
76

Rear

sedan
and

wagon
193
Removal
40
71

SpeCifications
and
service
data
203
204
Sectional
view
69

Troubleshooting
16

Throttle
valve
70

Wheel

cyhnders
pIck
up
196
Charging
system

Brakes
front
diSC
sedan
and

wagon
Troubleshooting
12

Adjustment
201
Choke
and
accelerator

Disassembly
191

Disassembly
and

installation
82

Exploded
view
192

Exploded
view
83