clock DATSUN 510 1968 Service Repair Manual

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24

CHAPTER
FOUR

block

and
should
be
used
as
the
reference

point

m

II
1akmg

adjustments

6
With
a

piece
of
white
chalk
mark

a
hne
down

the
center
of
the

pomter
and
mark
the

timing

groove
on
the
crankshaft

pulley
which

IS
to
be

used
m

tImmg
the

engine
SpecIficatIon
for
tun

ing
reqUIres
trlhmg
at
10

degrees
before

top

dead
center
wluch
would
be
the

fourth
mark

from
the
left
end
of
the

row
of
marks

7
Loosen
the
hold
down
bolt
at
the
base
of
the

dlstnbutor

8
Locate
the
slow

speed
1
Ile

adjustIng
screw
on

the
carburetor

so
that
Ile

speed
can
be

adjusted

whIle

runnmg
Also
locate
throttle

adJustmg

screw

9
Start

engme
and

adjust
speed
With
the

adJust

ing
screws
to
the

readmgs
below

Smgle
pomt
dIStributor
600

rpm

Dual

pomt
trlbutor
700

rpm

10
Alternate

adjustment
of
the
two
screws

untIl
the
smoothest
Idle
at
the

proper
speed
IS

achieved

11
Pomt
the

tlIrung
lIght
at
the

stationary

pomter
When
the

lIght
flashes
the

timmg
mark

n
the
crankshaft

pulley
should

hne

up
With
the

mark
on
the

stationary
pomter
If
It
does
not

exactly
Ime

up
rotate

the
dlstnbutor

gradually

untIl
the
marks

align
mdlcatlng
correct

timmg

12
Shut
off
the

engme
remove
the

tmung
lIght

and
tachometer

tighten
the
hold
down
bolt
on

the
dlStnbutor
and
connect
the
vacuum
advance

hne
to
the
tli
tnbutor

IGNITION
TIMING

IDLE

SPEED
IDLE

MIXTURE

DUAL
POINT
DISTRIBUTOR

ONLY

The

followmg
applies
to
velucles
With
dual

pomt
distributor
and
an
exhaust
emission
con

trol
deVice
If
these

procedures
are
followed

ha
ul
exhaust

emisSion
should
be
below
the

maximum
allowable
level

1
Locate
the
Idle

and
throttle

adJustmg
screws

on
the
carburetor

2
Warm

up
the

engine
thoroughly

3
Connect

tachometer
and

tmung
light

4
Set
the

Id
le
speed
at
700

rpm
With
the
Idle

adjust
screw
5

Adjust

IgnltJ
on

tuning
at
10

degrees
before

top
dead

center

6
Increase
the

speed
of
the

engme
to
2
000

rpm

With
the
accelerator

or
throttle

hnkage
and
hold

for
about

15
seconds

7
Return
to
Idle
for
one
mmute

8
Set
the

engme
to
best
Idle
at
750

rpm
770

rpm
for
automatJ
c
transIDlsslOn
With
the
Idle

and
throttle

adJustmg
screws

9
Re

uce

engme
speed
at
700

rpm
720

rpm

for

automatic
transmission

by
turnmg
the
Idle

adJustmg
screw
clockWise
for
a
leaner
IlliXture

10
Connect
a
wife
lead
between
the
advance

ami
retard
Side
tenrunals
See

Figure
4

Speed

should

drop
from
100
to
150

rpm

11
Check

IgIl1tIon
tmung
With

tImmg
light
It

should
now
be
at

top
d
ad
center

12
If
the

tlmmg
IS

nSJt
correct

stop
the

engme

and

adjust
the
retarded
breaker

pomt

13
Start
the

engme
and
reclieck
ili

tmung
If

l

incorrect
reset
the
retarded
breaker

pomt
until

it
IS
correct

Repeat
s
nece

s

14
Disconnect
the
wife

bet
reen
the
advance

and
retard
termmals

15
Recheck

tmung
It
should

be
10

degrees

before

top
dead

center

16
If
mcorrect

repeat
the
above

procedures

un
tIl

satIsfactory

17

T
he
Idle

speed
of
automatic
transnllsslOn

vehicles
should

be
about
575

rpm
With
the

gear

j

selector

m
the

dhve

poSltlon
c

t

DWELL
ANGLE
SETIING

1
Connect

the
dwell

angle
meter

2

PLoJust
dwell

angle
to
49

to
55

degrees

OMPRESSION
TEST

I

A

compressIOn
test
IS

performed
to
check
for

worn

piston
nngs
or
to
detect
the

cause
of

a

low

speed
miss
Before

undertaking
the

test

el
llmate
the

pOSSibility
of

sticky
valves

by
usmg

one
of
the

oil
additives

deSigned
for
the

purpose

With
valves
free
test

compressIOn
as

follows

1
Run
the

engme
for
15
to
20
mmutes
untIl

normal

operating

temperatures
are
obtained

2
Shut
off

engme
remove
arr
cleaner
and

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

202
h

l
CHAPTER

FOURTEEN

Rear

Brake

Adjustment
Sedan

and

Wagon

I
Jack

up
the
rear
wheel

2
Release
the

handbrake

completely

3

Figure
27
shows

the

adJustmg
screw
for
the

sedan

Figure
28
for
the

wagon
Depress
the

I
rake

pedal
several
tImes
and
turn
the

adJusting

screw

clockWise
untIl
the
drum

cannot
be
moved

I

by
hand

4
Return

adJusting
screw
counterclockwISe

untIl
the

shoes
are

Just
clear
of
the

drum
ThIS

should
be

about
three
notches

5
Rotate

the
drum
to
see
If
the
shoes

are

draggmg
It
so

readJust
untIl
the

drag
IS

gone

Rear
rake

Adjnstment

pick
np

I
Jack

up
rear
wheel

2
Release
handbrake

AdJust
the
wheel

usmg

the

same

procedure
given
for
the
front

wheel

See

Figure
29
Handbrake

Adjnstment
f

I
Release

handbrake
and

adJust
rear
brakes
as

preViously
descnbed

2

AdJust
the
front

and
rear
handbrake
cable

by

adJustIng
nuts

shown
m

Figure
30
The
stroke

of
the
handbrake

control
stem
should
be
3
346

to
3
740
m

85
to
95mm
sedan

only

3
Refer
to

Figure
31

AdJust
the
front
cable

by

turnmg
the

adJusting
nut
so
that
the

control

stem
stroke

IS
4
330
to
4724
m
110
to

120mm

wagon

only

19
1
18
1

1
2
3
S
6
7
8
9

14
17
18
19
20
21
22
23
24

InstrUment
paoel

Nut
sptlng

screW
Washer
sptlng
washer

Wing
nut

Cluster
ld

f
lpanslon
out

screW
fle
j
ble
s
1afl

SOcKet
assembly

aulb
12
volt
3
watt

I
oltage
regulator

CIrcuit
plate

speedometer
assembly

fuel
gauge
assembly

Water
temperature
gauge

ClOCK
assemblY
Jt

I
f
J
1
J
fX
v

J
G

11

6
n
a