1968 DATSUN 510 transmission

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Page 38 of 252

DATSUN 510 1968 Service Repair Manual
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47

8
78mml
I

Tlmmg
Indicator

48
lock
washer
spring

49
Water
Inlet

50
R

Page 40 of 252

DATSUN 510 1968 Service Repair Manual
I
Piston
with
pin

2
Piston
nng
set

3
Piston
nng
set

4
Connecting
rod

5
Connecting
rod
bolt

6
Connecting
rod
nut

7
Connecting
rod
bushing

8
Crankshaft

9
011
gallery
plug

10
Bushing

Page 42 of 252

DATSUN 510 1968 Service Repair Manual
ENGINE

37

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27

Inner
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seat

s

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 44 of 252

DATSUN 510 1968 Service Repair Manual
ENGINE
39

Figure
11
Remove
the
clutch
return

spnng
from

Its

holdmg
bracket
and
the
clutch

operatmg

cylmder
from
the
clutch
withdrawal
lever

19
Disconnect
the

speedometer
ca

ENGINE
39

Figure
11
Remove
the
clutch
return

spnng
from

Its

holdmg
bracket
and
the
clutch

operatmg

cylmder
from
the
clutch
withdrawal
lever

19
Disconnect
the

speedometer
cable
from
the

side
of
the
transnnsslOn
as
shown
m

Figure
12

20
Disconnect
the
flat

attachmg
plug
connector

from
the
reverse

lamp
sWitch
on
the

translDlSSlon

housing

21
At
the
transnnsslOn

housmg
disconnect
the

shIft

and
the
select
rods
Remove
the
cross
shaft

assembly
by
remOVIng
Its
bracket
from
the
Side

member

22
DISconnect
the
front
exhaust

pipe
from
the

exhaust
manIfold

by
remoVing
the
two
connect

mg
bolts

23
Disconnect
the
center
exhaust

pipe
from
the

rear
exhaust

pipe

24
Remove
the
front
exhaust

pipe
the

pre
muffler
and
the
center
exhaust

pipe
from
the

vehicle

25
Disconnect
the
dnve
shaft
from
the

matIng

flange
of
the

gear
carner

26
Insert
a

Jack
under
the
transmiSSIOn
and

jack
It

up
Just
a
little
to
remove
some
of
the

tension
from
the
rear
motor
mounts

CAUTION

Use
care
m
the

placement
of
the

lack

head
to

prevent
transmiSSIOn

housmg

damage
A
block

of
wood
can
be
m

serted

between
the

Jack
head
and

transmISSIOn

for

protection
The
block

of
wood
should
be

long
enough
to

span
the
transmiSSion

housmg

27
Remove
the
rear

engine
mountIng
cross

member

by
remoVing
the
bolts

holdmg
the
en

gine
mountIng
msulator
the

mountIng
cross

member
and
the
handbrake

clamp

28
Remove
the
bolts

secunng
the
front

engine

mountmg
msulators
to
the
front
cross
member

NOTE
At
thiS
time
all
Wires
hoses

and

lmkages
should
have
been
dIScon

nected

from
the

engme
and
transmIS

sIOn

Recheck
thiS
and

make
sure
that

no
loose

ends
Will

hamper
actual
en

gme
removal

29

RIg
a
cham

or
cable
hOist
to
the

lifting
eyes

stnngers
located

on
the

nght
front
and
left

rear

of
the

cylmder
head
Take

up
slack
m
the
hOist

30

Figure
13
shows
the

engme
bemg
lifted
Re

move
the

engine
slowly
by
lowenng
the

jack

beneath
the
transnnssion

gradually
until
It
can

@

Page 45 of 252

DATSUN 510 1968 Service Repair Manual
40
CHAPTER
SIX

be
removed
Hoist
the

engme
off

Its
mounts
and

adjust
the
cham
or
cable
to
tIlt
the

engme
as

shown
in
the
illustration
ContInue
to

raIse

gradually

31
Once

40
CHAPTER
SIX

be
removed
Hoist
the

engme
off

Its
mounts
and

adjust
the
cham
or
cable
to
tIlt
the

engme
as

shown
in
the
illustration
ContInue
to

raIse

gradually

31
Once
the

engine
and
transmission
are
clear

of
the
vehIcle
lower
them
to
a
swtable

support

or
stand
and
dIsconnect
the
hOISt

32
The
transmISSIon
can
now
be
freed

by
re

movmg
the
bolts

holdIng
the
clutch

assembly
to

the

flywheel
housing
and

movmg
the
clutch

assembly
back
to

dIsengage
the
dnve
shaft

splmes

33
Witlltlie

engIne
removed

carefiillyinspect

the

mountIng
Insulators
for

SIgnS
of

damage
or

detenoratIon

Replace
them
1f

necessary

ENGINE
DISASSEMBLY

ThIS
sectIon
covers

dIsassembly
of
the

engine

once
It
has
been

removed
from
the
vehIcle
All

steps
would
be
followed
for
a

complete
engme

overhaul
But
smce

many
of
the

procedures
can

be
done
WIthout

removing
the

engIne
from
the

velucle
a

complete
course
of
actIon
should
be

decided
on
before
needless
removal
and
ms

assembly

Mount
the

engme
on
a
stand
or
other
sUItable

work
surface
before

msassembly
Thoroughly

clean
the
extenor
WIth
steam
or
solvent

CAUTION

Remove

the
alternator
starter
motor

carburetor
and
dIStributor

from
the

engine
before

cleaning
to

prevent

damage

Once
clean

mspect
the

engme
for

SIgnS
of

damage
or

mlssmg
parts
cracks
or
accumulated

rust
on
the
block

especIally
around
the
soft

plugs
cracks
In
the
clutch

housing
and
dents

or
cracks

In
the
oil

pan

DISassemble
as
follows

Alternator
Removal

1

Figure
14
shows
the

positIon
of
the
alternator

on
the

engme
and
a
VIew
of
the
alternator

mountIng
parts
Remove
the
two

bolts
lock

washers
and
shmls

holding
the
alternator
to
the

adjustIng
bar
and
the

adjustIng
bar
to
the

engme

block

2
Remove
the
two
bolts
and
lockwashers

hold
ing
the
alternator
to
lower

mounting
bracket

3
Remove
the
alternator
and

mountmg
brack

ets

Starter
Motor
Removal

1
Remove
two

mountIng
bolts
and
lockwashers

holdmg
starter
motor
to
clutch

housmg

2
Pull
starter

assembly
toward
front
of

engme

and

remove

Distributor
Removal

1
Scnbe

ahgnment
marks
on
the
mstrlbutor

shaft
tl
ie

ihsthDutor
mountmg
oracket
anihlfe

front
cover
so
that
the
dIStnbutor
can
be
re

placed
accurately
later

2
Remove
two
bolts
and
lockwashers

holdIng

the
dlstnbutor

mountmg
housmg
to
the

front

cover

3
Pull

up
on
the
dlstnbutor
and
remove
it

as

a
unit

Carburetor
Removal

1
Remove
the
four
nuts
and
lockwashers

join

mg
the
carburetor
and
mtake
manifold
then

remove
carburetor

Oil

Pump
Removal

1
Remove
the
four

mountIng
bolts
and
lock

washers

2
WIthdraw
the
011

pump
assembly
from
tht

front
cover
as
shown
m

Figure
15

@

Air

Pump
Removal

1
Remove
the
bolt

passmg
through
the
slot
on

Page 48 of 252

DATSUN 510 1968 Service Repair Manual
ENGINE

43

@

0
00

o

mg
the
cham

tenslOner
to

the
block
to

free
the

sprIng
loaded

tenslOner

assembly

2
Remove
the
four

bolts

and

lockwashers
hold

mg
the
left
and

rIght
s

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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