1968 DATSUN 510 water pump

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Page 4 of 252

DATSUN 510 1968 Service Repair Manual
II

CHAPTER
SIX

ENGINE

Cylmder
block

Crankshaft

PistOns
and

connectmg
rods

Cyhnder
head

Camshaft

Valve
mechamsm

Camshaft
dnve

Mamfolds

011

pump

Fuel

pump
Carburetor

Emission
c

Page 31 of 252

DATSUN 510 1968 Service Repair Manual
26

CHAPTER

FOUR

2
Check
all
belts
hoses
and
fuellmes

Replace

If

reqUIred
Check
the
tensIon
of
the
belts
for

the
au

pump
and
the
alternator

Adjust
as
re

qUIred
Normal
de

Page 38 of 252

DATSUN 510 1968 Service Repair Manual
4l
4111a
78
mml

la78mml

42
4
42
4OIla50mml

t
4544
i

35
45
lIq
D

1
43
45
44

6

1i
45
43
42
41
45
44
46
46
47

8
78mml
I

Tlmmg
Indicator

48
lock
washer
spring

49
Water
Inlet

50
R

Page 41 of 252

DATSUN 510 1968 Service Repair Manual
36
CHAPTER
SIX

0B

34

35

2224
19

21

p
7

31

13

4

7

O

41

rlj
17

11
lOlL
JET

2
Intake
valve

Insert

3
Exhaust
valve
Insert

4
Intake
valve

guide

5
Exhaust
valve

guide
3

Page 43 of 252

DATSUN 510 1968 Service Repair Manual
38

CHAPTER
SIX

EMISSION

CONTROL
DEVICES

All

Datsuns
have
a
sealed

type
of
crankcase

emISSion
control
device
and
an
exhaust
emISsion

control
deVice
Models
sold

m
Cahfornla

s

38

CHAPTER
SIX

EMISSION

CONTROL
DEVICES

All

Datsuns
have
a
sealed

type
of
crankcase

emISSion
control
device
and
an
exhaust
emISsion

control
deVice
Models
sold

m
Cahfornla

smce

1970
also
have
an

evaporative
emisSion

control

deVice
An

rmportant
part
of
the

exhaust
control

device
is
the
air

pump
located

at
the

bottom
left

hand
side
of
the

engme
It

IS
dnven

by
a
belt
off

of
the
crankshaft

pulley
and

supphes
air
to
the

exhaust

system
In
1972

an
electric
blower
in

corporated
m
the

air
cleaner

replaced
the

mechanical

pumI

ENGINE
REMOVAL

Expenence
has

shown
It
IS
easier

to
remove

the

engine
and

the
transmission

as
a

smgle
UnIt

than

to
remove
the

engme
alone
Once

the
en

gine
and

transmiSSIon
are

out
of

the
vehIcle
the

tranSmIssion
can
be

detached
from
the

engme

To
remove
the

engme
transmISsion

proceed

as
follows

1
Scribe

ahgnment
marks
on
the
hood

around

the

hmges
ThIS

will
make
remstallatlon

eaSIer

2
Remove
the

two
bolts
that
secure

each

hInge

and

remove
the
hood

It
is

not

necessary
to
re

move
the
hood

support
from

the

engme
firewall

3

DISconnect
the
lower

radIator
hose

from
the

right
hand
SIde
of
the

engine
and
at
the
bottom

of
the
radIator
ThIS
will

pernnt
coolant
to
dram

from
the

engme
and
the

radIator

4

Remove
the
draIn

plugs
from
the

engine

pan

and
translIDSsIon

and

completely
dram
lubn

cants
Into
suitable

contamers

5
DISconnect

the

battery
cables
from

the
bat

tery
loosen

the
two
hold
down

clamps
and

re

move

the

battery

NOTE

The
location
and

number

of

hoses

to
be
removed

from
the
air

cleaner
varies

from
model
to

model

It
IS

normally
easier
to
remove

the

hoses

from
the
sources
rather

than

try

to

dISconnect

them

from

yndemeath

the

air

cleaner
The
1972
model

Will

requlre
dlsconnectlOn

of
the
electrica1

cirCUit

In
the
air

cleaner

system
wing
nut
from
the

top
of
the
air
cleaner
and

remove
the

aIr
cleaner

7
DIsconnect
the

upper
radiator
hose
from
the

radiator
and
the
thermostat

housmg
Remove

the
hose

8
Disconnect
the
two
heater

hoses
from

the

nght
hand
side
of
the

engme
TIe
these
bac
so

they
won
t
interfere
with

removal
of
the

engme

9
Remove
the
radIator

grille

by
unscrewing
all

mountmg
screws

10
Remove
the
four

mounting
screws

holding

the
fan
shield
to
the
backside

of
the

radiator

11
Remove
the
four

mountmg
bolts

holdIng
the

radiator

In

place
In
automatic
tranSmISsion

models
dISconnect

the
two
transnnsslOn
oIl

cooler

lInes
from

the
bottom
of
the
radiator

Pull
the

radiator

straight
up
to
remove
Remove

the
fan

shield

12
Loosen

the

adjustment
and

mounting
bolts

from

the

retamIng
brackets
on
the
alternator

and

air

pump
If
so

eqwpped
The

alternator
is
lo

cated
at
the
bottom

nght
hand
Side
of
the

engme

and
the
air

pump
on
the

lower
left
hand
Side

13
Loosen
tenSIon

on
the

two
dnve
belts

re

move
the
belts
from

the
alternator
and
air

pump

and
then
from
the

fan

pulleys

14
Remove
the
bolts

holdIng
the
fan
and

pulley

to
the
water

pump
assembly
and
remove
the

fan
and

pulley

15

DISconnect
the
fuel
hne
from
the
fuel

pump

16
DIsco

ect
accelerator

control

linkage
and

choke

WIre
at
the
carburetor

17
Disconnect

the

wiring
from

the
starter

motor
alternator

Ignition
coIl
oIl

pressure

switch

and

temperature

transmItting
unit

NOTE
The

following

steps
are

per

formed

from
under
the
car
lack

up

the

front
of
the

car
and

position

stands
under

the

front
support

points

to

proVide

working
room

under

the

vehicle

WARNING

Never

climb
under
a
vehicle
that
is

supported
by
the

lack
only
If
stands

are

not
avflllable

sturdy
wooden

blocks
can

be
U3ed

6
Disconnect
all
hoses

that
lead
to
the

air

cleaner

remove
two

bolts
that
hold
the
air

cleaner
to

its

mountmg
bracket

unscrew
the
18
Remove
two
bolts

holdIng
the
clutch

operat

Ing
cylInder
to
the

flywheel
hOUSIng
shown

m

Page 47 of 252

DATSUN 510 1968 Service Repair Manual
4Z
CHAPTER
SIX

the

adJustmg
bar
mto
the

mountmg
flange
of
the

arr

pump

2
Remove
the
bolt

lInking
the

arr

pump
to
the

mountmg
bracket
and
remove

pump

3
The
bracket
has

Page 63 of 252

DATSUN 510 1968 Service Repair Manual
58

CHAPTER
SIX

Notch
for

t1mmg
check

Camshaft

locatmg
hole

Timmg

mark

11
Should

none
of
the
above

adjustments
be

adequate
return
the
camshaft

sprocket
to
the

No
1
hole
a

58

CHAPTER
SIX

Notch
for

t1mmg
check

Camshaft

locatmg
hole

Timmg

mark

11
Should

none
of
the
above

adjustments
be

adequate
return
the
camshaft

sprocket
to
the

No
1
hole
and

replace
the
Oll

pump
cam
and

bolt
Under
these
conditIons
the

cham
must
be

replaced

Front
Cover
Crankshaft

Polley

And
Water

Pomp
InstaDation

1
Press
a
new
Oll
seal
into
the
front
cover

2

Apply
gasket

seahng
compound
to
both
sides

of
the
left
hand

and

nght
hand
front

cover

gaskets
Mount
the

gaskets
and

front
cover
to

the
block
With
bolts
and
lockwashers
Check

the
seal
of
the
head

gasket
at
the

top
of
the
front

cover
Make
certam
to
attach
bolts
at
that

locatlon

3

Insert
woodruff

key
into
crankshaft
and
slide

crankshaft

pulley
onto
crankshaft

4
Install
crankshaft
bolt
and
washer
then

torque
as

per
the

speclficatlon
table

5
Coat
water

pump
gasket
on
both
sides
With

gasket
compound
and
mount
the
water

pump
to

the
front
cover
as
shown

m

Figure
67

Oil

Pump
Installation

1
With
No
1

cyhnder
at

top
dead
center
on
Its

compressIOn
stroke
mstall
the

packing
for
the

Oll

pump
and
distnbutor
dnve

spmdle
mto
the

front
cover

2
Install
the
Oll

pump
and
distnbutor
drive

spmdle
Refer
to

Figure
68
and
make
certain

that
the
dnve

spmdle

top
IS
located

m
the
11
25
@

a
m

position
The
smaller

portion
of
the

spmdle

should
be
toward
the
front
of
the

engme

Fuel

Pomp
Water
Inlet
Elbow
lbermostat

Housing
and
Water
Outlet
Elbow
InstliJIation

1
Install
the
fuel

pump
with
associated

gasket

2
Install
the
water
mlet
elbow
front
thermo

stat

housmg
thermostat
and
water
outlet
elbow

along
With
associated

gaskets

3
Bolt
the
front
and
rear

hftmg
eyes
to
the

right

front
and
left

rear
of
the

cyhnder
block

4
Install

gasket
and
front

cover
on
the
front
of

the
head

Oil
Strainer
and
Oil
Pan
Installation

1
Mount
the
011
stramer
With

gasket
to
the
bot

tom
of
the

cyhnder
block

Torque
to

specifica

tion

Page 64 of 252

DATSUN 510 1968 Service Repair Manual
ENGINE
59

2
Coat

the

pan
gasket
on
both
sides
With

gasket

compound
and
attach
the

oil

pan
to
the

cyhnder

block

Torque
as

specIfied

Manifold
and
Carburetor
Installation

1

ENGINE
59

2
Coat

the

pan
gasket
on
both
sides
With

gasket

compound
and
attach
the

oil

pan
to
the

cyhnder

block

Torque
as

specIfied

Manifold
and
Carburetor
Installation

1
Install
the
mtake
and
exhaust
manIfolds
WIth

associated

gasket
to
the

cylmder
head

2
Mount
the
carburetor
and

gasket
to
the
mtake

manIfold

2

Adjust
all
mtake
and
exhaust
valves
to
the

specIfied
clearance
for
a
cold

engme

Clutch

Assembly
Installation

CAUTION

Take

extreme
care
not
to

get
grease

or
011
on
the

clutch
or

flywheel
frlc

hon
contact

surfaces

1
Place
the
clutch
disc

assembly
on
the

flywheel

With
the

longer
chamfered

splmed
end
of
the
dISC

toward
the
transmISSion

2

Visually
align
or
use
a

dummy

splmed
dnve

shaft
to

ahgn
the
diSC

assembly
With
the

flywheel

pilot
beanng

3
Install
and

tighten
the
SIX
bolts

holdmg
the

clutch
cover

assembly
to
the

flywheel
Tighten

the
bolts
a
turn
each
tune

by
diagonal
pattern

until

they
are

tight
Tlghtenmg
torque
should
be

174

to
188ft
lbs
24
to
2
6

kg
m

NOTE
There
are
two
dowels
on

the

flywheel
to

locate
the
clutch
cover

4
Remove

dummy
shaft
If
used

after
the

above
bolts
are

fully
tightened

5
Refit
the
release

bearing
and
translI11Ssion

case
Miscellaneous
Installation

1
Connect
the
fuel
hose

on
the
front

part
of
the

engme
to
the
fuel

pump
and
to
the
carburetor

2

Gap
the

spark
plugs
and
mstall
them

usmg

new

gaskets

3
Coat
the
rocker
arm
cover

gasket
With
sealer

and

position
It
on
the

cylmder
head

4
Install
the
rocker
arm
cover
and

tighten
the

two
thumb

screws
that
hold
it

m

place

5
Install
distrIbutor

makmg
certam
that
the

notch

on
the
distributor
shaft

assembly
mates

With
the
drive

spmdle
Ahgn
the
location
marks

made

dunng
disassembly
so
that
the
distrIbutor

is

positioned
as
before

6

Install
and

tighten
the
bolts
which
hold
the

dIStributor

to
the
front

cover

7
Install

pomts
condenser
and
rotor

8

Replace
distrIbutor

cap
and
attach

spark
plug

Wires
m
the
correct

sequence
Make
certain
that

all
wires
are

firmly
seated
m
the
distrIbutor

cap

and
attached

securely
to
the

spark
plugs

9
HOISt
the

engme
assembly
from
the
work

stand

10
Install
the
alternator
bracket
alternator

and

engme
mounts
to
the
block

11
Install
the

IgnItIon
coil
oil
filter
oil

pressure

SWitch

dipstick
and

water
drain

plug

12
Connect
the

vacuum
Ime
between
the
dis

trIbutor
and
carburetor

13
Connect
the
transIDlSSlOn
to
the

engine
prior

to
mstallatIon
m
the
vehicle

Engine
Installation

Installation
is
the

reverse
of
the

procedures

followed
m

removal
Be
certaIn
thatlall

battery

connections
are
made

that
water
hoses

are
se

cured

wmng
IS
connected

properly
and
that
all

required
bolts
and
mounts
are
mstalled
and

tightened
Replace
the
radiator
fan
belts
and

radiator
shroud
Fill
the

engme
With
the

proper

grade
of
oil
and
the
radiator
With

recommended

coolant
Install
the
hood

to
the

hInges
according

to
the
marks
made

dUrIng
removal

SERVICE
DATA
AND
SPECIFICATIONS

Table
1
covers
servIce
data
and

engme
Speci

fications

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