1968 DATSUN 510 four wheel drive

18

CHAP1
lER
THlREE

c

c

c

ce

J

1

Ii

j

Wheel

Alignment
Worn
more
on
one
sIde
than

the
other

Edges
of
tread
feathered

r

I

0c
l

Road
Abrasion

Rough
wear
on
entire
tire
or

In

patches

t

y

1

OverInflabon
Worn
more
In
center
than
on

sides
Wheel
Balance

Scalloped
edges
indicate

wheel
wobble
or

tramp
due
to
wheel
unbal

ance

f
Q
F

r

r

r

f

i
m

i
O

2

7

iK

J

1

J

i
i

5J

CombInation
Most
tIres
exhibit
a

combination

of
the
above
This
tIre
was

overinflated
center

worn

and
the
toe
In
was

Incorrect
feather

Ing
The
driver
cornered
hard
at

high
speed

feathering
rounded
shoulders
and
braked

rapidly
worn

spots
The

scaly
roughness
In

dlcates
a

rough
road
surface

WHEEL
BALANCING

All
four
wheels
and
tIres
must
be
ill
balance

along
two
axes
To
be

ill
statIc
balance

weight

must
be

evenly
dlstnbuted
around
the
llXlS
of

rotatIon

Figure
3A
shows

a

statIcally
unbal

anced
wheel

Figure
3B
shows
the
result
wheel

tramp
or

hoppmg
Figure
3C
shows

proper
static

balance

To

be
ill

dynamiC
balance
the
centerhne
of

die

welghtmusCcomclde
with
the
centerhne
of

the
wheel

Figure
4A
shows
a

dynamically
un

balanced
wheel

Figure
4B
shows
the
result

wheel
wobble

or

shmuny
Figure
4C
shows
the

proper
dynannc
balance

44
CHAPTER
SIX

@

@

eight
connecting
rod
bolts
Remove
the
four

bottom

caps
along
with
assoc1ated
rod

beanngs

as
shown

m

Figure
25
Be
certain
to

identify

each

part
for

later

reassembly
on

the
correct

rod

3

Gently
push

up
each

connecting
rod
into

the

cylinders
far

enough
to

clear
the

crankshaft
Do

not

push
them

up
so
far
that
the

piston
rings
hit

the

ridge
at
the

top
of

the

cyImders
Remove
the

upper
beanngs
and

identify
for
later

reassembly

4
Remove

the
five
bolts

holding
the

flywheel

to
the

crankshaft
as
shown
in

Figure
26
For

models
Wlth
automatic
transmisslOn
there

is
a

convertor

plate
in
front
of
the
drive

plate
fly

wheel
and
a
crankshaft

plate
m

back
of
the

drive

plate
also

attached

by
the
five
bolts

5
Remove
bolts
from
front
main

bearing
cap

and
three
center
main

bearings
Identtfy
caps

and

beanngs
for

reassembly
@

NOTE
Removal

of
the
rear
mam

bearing

requires
the
use

of
a

specuzl

tool
ST4463000D
shown
in

f
Q

URE
27

6
Remove
the
rear
mam

bearing
cap
as
shown

in

Figure
28

7
Remove
the

rear
011

seal
as
shown
m

Figure

29

8
Remove

crankshaft
from

cylinder
block

9
Remove

and

1dentify
the
mam

beanngs
from

the

cyhnder
block

JOurnals

136
CHAPTER
ELEVEN

5
DIsconnect
and
remove
starter
motor
from

flywheel
housmg
as
descnbe4
In

Chapter
NIne

6

Dls
onnect
handbrake
WIre
at

equalIzer

pIVOt
See

Figure
15
sedan
and

wagon

I

j

7
Loosen
the
two

exhaust
center

p1pe
clamps

and

turn
the

premuffier
complete
With
center

pIpe
to
the
left
as
shown
m

FJgure
16
sedan
and

wagon

f

W

y
I

0
Y
h

0

ilo

8
DIsconnect
front
exhaust
tube
from
exhaust

man1fold

pICk
up

9
Rem

ye
four
bolts
from

companion
flange

of

gear
carner
and
detach

dnve
shaft
See

Figure

17
Seal
the
end
of
rear
extensIon

housmg
to

prevent
011

leakage

1
0
Dlsconn

i
gpeedometer
drive
cable
from

rear
extensIOn
as
shown
In

Figure
18

11
On
models
s

quipped
disconnect
neutral

gear
sWitch
third

gear
sWitch
and
reverse

gear

sWItch
as
shown
in

Figure
19
next

page

f
t

iT
l
t

t

W
12
Refer
to

Figure
20
whIch

IS
an

exploded

View
of

the

gear
shIft
lever
and
control

system

DependIng
on
the
model
dISconnect
the
shift

lever
as
shown

13
Remove
cross
shaft

assembly
from
trans

rmsslOn
case
See

Figure
21

14
Remove
clutch

operating
cylinder
from

clutch

housmg

15
Place
a

Jack
beneath
the

engme
011

pan
and

SuppOFt
the

engme
Do
not

apply
Jack
pressure

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

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

17
CHAPTER
THIRTEEN

CD

7
Remove

bearing
collar
and
extract
the
outer

beanng
cage

8
Use
a
screwdriver
to
remove
front
hub

grease

seal
and
imIer

bearmg
cage

9
Use
a
dnft
to

punch
out
the
outer
and
mner

race
of
the
outer

bearmgs
Punch
out
imIer

bearing

10
Detach
rotor
from
wheel
hub

as
shown
in

FJgUre
7
@
1

Upper
Imk

2
Lower
Imk

3
TenSIOn
rod

4
Knuckle

spindle
support

5

Upper
link

sptndle

6
lower
link

spmdle

7
Fulcrum

pm

8
Fulcrum
bolt

9
Cotter

ptn

10
Shock
absorber

11
Frame

12

AdJustmg
shim

13
Lower

bumper
rubber

14

Upper
bumper
rubber

15
Bracket

Wheel
Hub
nnd
Wheel

Bearing

Inspection
nnd

Repair

1

Inspect
all

parts
for
wear
and

damage
and

clean
with
solvent

2
Rotate

bearmgs
by
hand
to
make
certain

they

move

freely
If

draggnIg
IS

eVident

replace

bearings

3
Check
the
axle
for

sconng
excessive
wear

rust
or
other

daJP

age
Reparr
or

replace
as

requIred

4

Inspect
the
rotor
for

scoring
pIttIng
or
rust

If

damaged
reconditIon
the
rotor

by
haVlDg
It

tumed
or
refaced
Refer
to

Chapter
Fourteen

Wheel

Hub
nnd
Wheel

Bearing
Installation

1

Assembly
is
the
reverse
of

removal

2

Apply
wheel

bearing
grease
to
the
inside
of

hub

cap

3

Replace
grease
seals
with
new
ones
whenever

they
are
removed

4

Torque
bolts
to

specIficatIons
on
next

page