1968 DATSUN 510 check oil

EMISSION
CONTROL
SYSTEM

121

CD

FLAME
ARRESTER

CRANK
CASE

VENTILATION
CONTROL
VALVE

WIll
be
heard
1f
the
valve
IS

workIng
Place
a

finger
over
the
valve
mlet
as
shown
In

Figure
9

A

strong
vacuum
should
be
felt
If
the
valve
IS

not

operatmg
properly
replace
It
Do
not
at

tempt
to
clean
It

3
Check
the
ventilator
hose
for
obstructIons

and
cracks
Clean
with
solvent

or

replace
as

reqwred

AIR
INJECTION
SYSTEM

Check
Valve

ThIS
test
can
be

performed
at
the
same
tIme

as
the
air

pump
test
OIL
SEPARATOR

1

128

CHAPTER
ELEVEN

1
Clutch
disc

assembly

2
Clutch
cover

3
Hex
bolt

4
Lock
washer

5
Withdrawal
lever

6
Withdrawal
lever

ball

pin

7
Lock
washer

8
Retainer

spnng

9
Clutch
sleeve

10
Release

bearing

11
Holder

spring

12
Dust
cover

13
Return

spring

14
Push
nut

15
Hex
nut
CD

9

11

8

6

7

1
Release

beanng
2

Beanng
sleeve
2

5
13

12

15

14

Clutch

Inspection
and

Repair

1

Thoroughly
clean
all
dISassembled

parts
ex

cept
for
the

dISc

assembly
and
release

bearmg

In
a
SUItable
solvent

2
Check

all

parts
carefully
for
wear
cracks

and
other
defects

3
Check
the
clutch
disc
for
oil
soaked

or

cracked

faCIngs

warpmg
loose
nvets

exceSSIve

wear
and
broken

spnngs

4
Check
the

pressure
plate
for

sconng
bum

marks
blue
tlnted
areas
and
cracks

If

any
of

the
above
condItIons
are
found

re

place
the
clutch
dISC
and
or
the

pressure
plate

Replace
dISC

assembly
1f

facmg
IS
worn
so
that

the

facmg
heIght
above
the

nvet
IS
less
than

00118m
03mm

Very
mmor
bum

marks
and

CLUTCH
TRANSMISSION
AND
DRIVESHAFI
129

scratches
on
the

pressure
plate
may
be

removed

with

crocus
cloth

If
the
source
of
clutch
trouble
IS
still
not
evl

dent
take
the

pressure
plate
and
disc
to
a

compe

tent

garage
to
check
the

pressure
plate
finger

release

height
and
nmout
Never

attempt
to
ad

just
the

fingers
or
dismantle
the

pressure
plate

Without

proper
tools
and

experience

Check
the
release

bearing
by
holdmg
the
Inner

race
and

rotatmg
the
outer
race
With

hght
pres

sure

applied
If
the

bearing
is

rough
or

noisy

replace
it

CAUTION

Never
clean
the
release

bearing
In

solvent
It
IS

prelubriCflted
at

the

fac

tory
Simply

wipe
with
a
Unt

free
cloth

If
the
release

bearing
shows

any
signs
of
loss

of

lubncant
install
a
new

bearing
Replace
the

sleev
lu
SignS
of
wear
are
evident

Clutch

Reassembly

1
Be

sure

your
hands
are
clean
for
the
initIal

assembly

2

Inspect
the
clutch

facings
pressure
plate
and

flywheel
to
be
sure

they
are
free
from

grease
oil

and
other

foreIgn
material

3

TIghtly
fit
release

bearmg
onto
the

bearing

sleeve
When

beanng
IS
mstalled
turn

bearmg

With

a

finger
to
make
sure
It

operates
smoothly

4

Apply
multI

purpose
grease
to
the

bearmg

sleeve
InSIde

groove
See

Figure
5

CD
Ji

rot

Pac
thiS
r

r
r

1
1i

QI
ecess

5

Apply
multi

purpose
grease
to
the

WIth

drawallever
and

bearing
sleeve
contact

point
and
to
the
Withdrawal
lever
ball

pm
and
with

drawallever
contact

point

f

6
Clean
the
clutch

pllot
bushmg
and
fill
It

With
multi

purpose
grease

7
Mount
the
WithdraWal
lever
release

bearing

and

bearing
sleeve
to
the
clutch

housing
Install

dust
cover
on
clutch

housing
and
connect
return

spring
to
WithdraWal
lever

8
Place
the

pressure
plate
and
clutch
disc
in

positIon
on
the

flywheel
Make
certain
the

pres

sure

plate
is
In
the
same

positIon
relative
to

fly

wheel
as
when
removed
Use
a
clutch

alIgning

bar

Special
Tool
ST20630000

FIgDfe
6
to

alIgn
the
clutch
dISc

splIne
to
the

pllot
bearing

CD

NOTE

If
the

special
tool
is
not
avail

able

cut
an

input
shaft
from
a

Junk

transmission

9
Install
the

pressure
plate
mounting
bolts

Tighten
the
bolts

dIagonally
opposite
each
other

one
turn
at
a
time
to

prevent
warpmg
Torque

the
bolts
to
10
8
to
15
9
ft
lbs
1
5
to
2
2

kg
m
Remove

durmny
shaft

10
Install
the
clutch

housing
to
the

engme

Clutch
ntrol

Datsuns
have
a

hydraulic
clutch
control

system
It
consISts
of
a

pendant
clutch

pedal

142

CHAPTER

ELEVEN

face
See

Figure
33
When
the

gap
IS
less
than

o
031
m
0
8mm

replace
the
balk

ring

@
1
2

to
1
6

mm

0047
to
0

063
In

12
Check
the

sh1fnng
msert
for

damage
or

wear

Replace
as

required

13
Check
the

OIl
seal
for
deformatIon
wear

or
cracks

Replace
1f
defectIve

14
Check

the
rear

engme
mount
Insulators
Re

place
1f
worn
or

defectIve

Transmission

Reassembly
and

Adjustment

Reassemble
the
transmISSIon
In
the

reverse

sequence
used
ill

dIsassembly
The

followmg

Items
should
be
observed

dunng

reassembly

1
Be
certaIn
that
the
1st

2nd
and
3rd
4th

syn

chronizer
hubs
are

facmg
ill
the
correct
dIrec

tIon

2
Use
a
brass
dnft

to
fit
the
1
st

gear
needle

bearlOg
collar

to
the
shaft

as
shown
In

Figure
34

il

@
3
Use

a
hollow
dnft
and

press
arbor

to
fit

the

main
shaft

ball

bearmg
to
the
shaft

as
shown

10

Figure
35

4
To
hold

synchronIZer
hub
end

play
to
a
mm

imum

snap
rmgs
of

vanous
thIcknesses

are

available

5
To
lock
the
malO
shaft

m
the
transrmSSlOn

case
double
mesh
the

gears
and
msert
the
as

sembly
10
the

case
Install
the
lockwasher
and

lock
nut

on
the

mam
shaft

Torque
the
lock

nut

to
57
8
to

79
5
ft
lb
8
0
to
11
0

kg
m

Fumly

bend
the

lock
washer
around
the
lock

nut
as

shown

In

Figure
36

1
lock
washer
2
Lock

nut

6
Assorted

thIckness

snap
nngs
and
thrust

washers

are
avallable
to
malOtam

proper
end

play
after

assembly
ThIS

applIes
to
the
main

146

CHAPTER

ELEVEN

o

i

fij@
0
@

7
B@

I

l

I

L
J

1
Before

disassembly
clean
all

parts
and

mark

locations

2
Remove
four

snap
gs
from
each

universal

JOInt
as
shown
in

Figure
43

@

3

LIghtly

tap
base
of

yoke
with
a
hammer

WIthdraw

beanng
race
See

Figure
44
Be

care

ful
when

remoVIng
the

bearmg
race
as
the

needle

bearmgs
InSIde
are
loose

and
are

easlly
lost

Inspection
and

Repair

1
Check
each

part
for

SIgnS
of
wear

damage

nlSt
dIStortIOn

and

pItting
Replace
as

reqUIred

If

any
part
of
the

journal
assembly

reqUIres
re

placement
replace
the
entIre

assembly
am
@
t

@

2
If
the
dnve
shaft
tubes
show

SIgnS
of

damage

have
them
checked

for
nmout
and
balance

by
a

dealer

or
an
automotIve
machine

shop

Assembly

1

Apply
wheel

bearing
grease
lIberally
to
the

needle

bearmgs
Insert
them

m
the

bearing
face

and

mstall
onto
the

journal
Replace
snap
ring

Vanous
thIckness

snap
nngs
are
avatlable
to

adjust
aXIal

play
in
the

Journal
assembly

2

Apply

gear
Oil
to

inSIde
of

splIne
and
outside

of

yoke
SlIde
the
dnve
shaft

splIned
yoke
onto

the
transmIssion
maIn
shaft

Sl1hnes
sedan
and

wagon

3

Apply
wheel

bearmg

grease
lIberally
to
the

drive
shaft

center

spline
Fill
the

caVIty
with

wheel

bearmg

grease
through
the

grease

mpple

pick

up

4
FJ
nlSh

assembly
by

reversIng
procedures
used

durmg
removal

CLUTCH
TRANSMISSION
AND
DRIVESHAFI
147

SERVICE
DATA
AND
SPECIFICATIONS

Table
3

gives
the
service
data
and

specIfica

tIons
for
the

dnveshaft

AUTOMATIC
TRANSMISSION

CHECKS
AND
ADJUSTMENTS

Whlle
removal
and

repair
of
the
automatic

transmisSIOn
IS
not

recommended
the

follo
VlIlg

checks
and

adjustments
should

help
prevent

costly
repatrs

Transmission
Oil
Check

Check
the
automatIc
transmission
oil
level
at

least

every
3
000
mlles

Replemsh
With

hIgh

qualIty
automatIc
transmISSIon
flUId
as

reqUIred

Be
careful
not
to
overfill
as

damage
to
the
seals

can
result
To
check
the
011
level

proceed
as

follows

1
Start
the

engme
and

nm
it
untIl
normal

oper

atrng
temperature
IS
reached

2

Apply
brakes
and

move
the
transmission

shut
lever

through
all
drive

pOSItions
and

place

lever
In

park
position

3
WIth

engme
running
remove
tranSmISSIon

dIp
StIck
clean
It
WIth
a
lInt
free
cloth
or

paper

and
return
it
to
the
transmission

4
Remove

dIp
stIck

agam
and
examine
level
on

dIp
stIck

gauge
It
should
be
between
the
low

and
full
marks

Replenish
as

necessary

5

VIsually
InSpect
the
color
and
condItIon
of

the
OIl
on
the

dIp
stIck
Normal
color
of
the
OIl

IS
red
If
the
color
IS
abnormal
dram
and

re

place
If
the
011
has
detenorated

to
a
vamlsh

lIke

qualIty
It

may
cause
the
control
valve
to

stIck
Blackened
oil

may
mdlcate
a
burned

clutch
or
brake
band
6
Should
the
above
condItIons

exist
refer

mamtenance
to
a
transmISSIon

specIalIst

Transmission
Oil

Leakage
Check

011

leakage
may
occur
at
the

Junction
of
the

transmissIon
and
rear
extensIon
011
tube
con

nectors
011

pan
OIl

pressure
mspectIon
holes

downshIft
solenoid
or
breather

pipe

Abnormal
OIl

usage
usually
mdlcates
leaks

that
should
be

stopped
before
severe

damage
IS

done
To

mspect
for
011
leaks

proceed
as

follows

1
LIft
car

up
on
hOISt
or

Jack
up
and

place
on

stands

2
Clean
outsIde
of
transmISSIon
case
With

cleanIng
solvent
to
remove
dIrt
and
011

accumu

latIons

3
Start

engme
and
nm
untIl

operating
temper

ature
is
reached

4
ShIft

gear
lever
to
dnve
to
Increase
011

pres

sure
and
CIrculatIon
WIthin
tranSmISsion

5

Inspect
pOInts
mentIoned
above
for

SIgnS
of

leakage
Leakage
of
transrmSSIOn
011

IS
dIStrnC

tIve

by
its
reddISh
color

6
If
leaks
are
detected
refer
servIce
and

reparr

to

qualIfied
transrmssion

specialISt

Kick
down
Switch

and
Downshift
Solenoid

Checks
and

Adjustment

When
ktck
down

operatIon
IS
not
correct
or

the

speed
changmg
pomt
IS
too

high
check
the

klck
down
SWItch
downshIft
solenOId
and
the

wlDng
between
them

Figure
45
shows
the
loca

tIOn
of
these

parts
To
check

operatIon
proceed

as
follows

Table
3
J

DRIVESHAFT
SERVICE
DATA
AND
SPECIFICATIONS

SpeCifications

Axial

play
of

spider
Journal

Sleeve

yoke
spltne
to
malnshaft

Spline
lash
wear
Itmlt

MaXimum
drive
shaft
runout

Journal
diameter
wear
limit

Penmlsslble

dynamiC
unbalance
at
4
000

rpm

Tightening
Torque

Flange
yoke
to

compaRlon
flange
nuts

CompaRlon
flange
center

bearing
nut
pick

up

Bearing
mounting
bracket
installation
bolt
00315
In
008mm

OtoO
0031
In
OtoO
08mm

00197
In

0
5mm

00236
In
06mm

00059
In

0
15mm

0278
In
oz

15

gr
cm

2893
to

615ft
Ib
40
to
8
5

kg
m

74
to
111
ft
Ib
10
to
15
kg
m

18

to
20
ft
Ib
24
to
2
7

kg
m

DIFFERENTIAL
REAR
AXLE
AND
REAR
SUSPENSION
151

4
Lower
the

Jack
and

r
move
dIfferentIal
from

rear
of
vehIcle
See

Figure
4
After
removal

sup

port
suspensIon
member
wIth

a
stand
to

prevent

distortlon
and

damage
to
the
Insulators

Differential

Inspection
Sedan

The

followmg
mspectIon
can
be
done
WIthout

disassembly
of
the
dIfferential
If
abnormalitIes

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

removmg
rear

cover
Refer
to

Figure
5
which
shows
the

cor

rect
contact

pattern
If
the
contact

pattern
IS
m

correct

dIsassembly
and

adjustment
of
dIffer

entlalls

reqUIred

CD
TOE

HEEL
DRIVE

SIDE
HEEL
COAST

SIDE

2
Use
a
dIal
mdtcator
to
measure
backlash
be

tween
the
dnve

gear
and

pmIOn
Backlash

should
be

0
0039
to
0
0079
m
0
10
to

o
20mm
Check

all

gear
teeth
for

damage
and

cracks

3
Check
runout
at
the
rear
of
the
dnve

gear

If
the
tooth
contact

pattern
or
backlash

IS
ab
normal
Runout
should
be
less
than
00031

m

0
08mm
See

Figure
6

4
Rotate
the

gears
and
lIsten
for

SignS
of
de

fective

bearmgs
If
noises
are
eVIdent
the
dIf

ferential
must
be
dIsassembled
and

repaired

CD

Diflerentiallnstallation

Sedan

1
Mount
the
dIfferentIal

assembly
to
the
rear

suspensIOn
member

2
FIt
the
dIfferentIal

mountlng
member
to
the

fittmg
hole

by
pushIng
It
forward
with

a
bar

Torque
the

nuts
to
61
ft
lb

8
5

kg
m

3
Install
axle
dnve
shafts
dnve

shaft
and

handbrake

rear
cable

REAR

AXLE
AND
SUSPENSION

SEDAN

Figure
7
and

Figure
8

page
153
are
ex

ploded
dIagrams
of
the
sedan
rear
axle
and

suspensIOn
The

fully
independent
rear

suspen

SIon
IS
a
semI

traIlIng
arm

deSIgn
With
a
sus

penSIOn
member

suspensIOn
arms
coIl

spnngs

and

hydraulIc
shock
absorbers
The
wheel

bearings
are
lIfetime
lubncated

Rear
Axle

and

Suspension
Removal
Sedan

1
Jack

up
the

rear
of
the
veh1cle
and

support

It
on
stands

2
Remove
wheels

3
Refer
to

Figure
9
and
dtsconnect
handbrake

lInkage
and
rerum

sprmg
Remove
tall

pIpe
and

muffler

4
DISconnect
brake
hose
from
brake
tube
Re

move
four
bolts

holdmg
dnve
shaft
to
dIf

ferential

Lower
dnve

shaft

gently
to

ground

154
CHAPTER

tWELVE

move
two
nuts

attachmg
dtfferenual

suspension

member
to
the

body

7

Gently
lower
the

suspension
assembly
from

the

body
by
10wermg
the

jack
Support
the

suspension
so
It

does
not

fall
off
of
the

Jack

See

Figure
11
WIthdraw

Jack
and

suspension

from
vehicle

Rear
Axle
and

Suspension
Inspedion

And

Repair
Sedan

WIth
the
rear

suspension
removed
from
the

vehicle

InSpect
all

parts
for
wear
and

damage

Pay

special
attention

to
the

bushings
in
the

suspensIon
arms
and
robber

bumpers
Check

conditIon

of
the

spring
robber

msulators
in
the

suspensIOn
member
and
drive
unit

mounting

member

Replace
as

required

Rear
Axle

and

Suspension
InstaDation
Sedan

1
Instalation

procedures
are
the

opposite
of

removal

2
Be
sure
that
the

suspension
member
and
dnve

unit

mountmg
member
are
med

up
correctly

3

Tighten
fixing
nuts
and
bolts

as
follows

Suspension
Member

Mounting
Nuts
72
It

Ib
10

kg
m

Dlfferenbal

Mounting
Nuls
62
It
Ib
85

kg
m

Shock
Absorber
Lower
End
Nuts
17
It
Ib
23

kg
m

COIL
SPRING

SEDAN

Coil

Spring
Removal
Sedan

1
Jack

up
rear
of

vehicle
and

support
it
on

stands
2
Remove
wheels

3
Disconnect
handbrake

mkage
and
retl1rn

spring

4
Remove
dnve
shaft

flange
nuts

Figure
12

5
Remove
nuts
from
lower

part
of

bumper

assembly

6
Place
a

Jack
under

suspension
arm
and

re

move
shock
absorber
from

lower

mounting

Lower

Jack
and
remove
coll

spring
spnng
seat

and

bumper
assembly

Coil

Spring
Inspection
and

Repair
Sedan

1
Check
condItIon
of
coll

sprmg
for
wear
and

damage
Replace
if
defective

2
Check

all
robber

parts
for

wear

damage
and

general
condItion

3
Installation
of
the
coll

spnng
assembly
is
the

reverse
of
removal
Make
certam
the
coil

spring

is
installed
With
Its
flat
face
at
the

top

SHOCK
ABSORBER

REMOVAL
REPLACEMENT

INSTALLATION

SEDAN

1

Open
the
trunk
and

remove
the
mer

2
Remove
double
nuts
that
fasten

upper
end

of
rear
shock
absorber
to
the

body
Figure
13

3

DIsconnect
lower
end
of
shock
absorber
from

suspensIon
arm

4
Check

general
conditIon
of
shock
absorber

Check
for
011
leaks
cracks
and

straIghtness
of

shaft

Replaceif
defectIve

5

Inspect
robber

bushmgs
for

damage
wear

and

general
condition

Replace
as

required

6
InstallatIon
IS
the
reverse
of
removal