1979 DATSUN 210 water pump

DATSUN
210
Model
8310
Series

SECTIONCD

COOLING
SYSTEM

em

CONTENTS

COOLING
SYSTEM

DESCRIPTION

WATER
PUMP

TORQUE
COUPLING

TEM
COUPLlNG

THERMOSTAT
CO
2

CO
2

CO
2

CO
3

CO
4

CO
4
RADIATOR

RADIATOR
RESERVOIR
TANk

SERVICE
DATA
AND

SPECIFICATIONS

TROUBLE
DIAGNOSES
AND

CORRECTIONS
CO
5

CO
5

CO
6

CO
7

DESCRIPTION

The

cooling
system
is
of
the

con

ventional

pressure
type
A

centrifugal

1P

a

COOLANT
LEVEL

Pour
coolant
into
the

radiator

up
to

the

cap
and
also
into
the
reservoir

up

to
the
MAX
level

CAUTION

To
avoid
serious

personal
injury
never

remove

radiator

cap
quickly
when

engine
is

hot
Sudden
release
of

cool

ing
system
pressure
is

very
dangerous

If

it
is

necessary
to
remove
radiator

cap
when
radiator
is
hot
turn

cap

slowly
counterclockwise
to
the
first

step
After
all

pressure
in
the
cool

ing

system
is
released
turn

cap
passing

the

stop
and
remove
it

DRAINING
AND

FLUSHING

THE
COOLING

SYSTEM

To
drain

the

cooling
system
re

move
radiator

cap
release
drain
cock
C09ling
System

COOLING
SYSTEM

pump
installed
on
the

timing
chain

cover
serves
to
circulate
the

coolant

The

pressure
t
pe
radiator
filler

cap

at
the
bottom
of
radiator
and
drain

plug
on
the
left

side
of

cylinder
block

If
the
heater

system
is

instaDed
set

heater

control
valve
to

open
position

Mter

the
coolant
is

drained

complete

ly
close
drain
cock
and

plug
and
refdl

the

system
with
clean
soft
water

WATER

PUMP

The
water

pump
is
of
a

centrifugal

type
which
is
mounted
on

the

engine

front
cover

TJ
te
pump
shaft

is

sup

ported
by
a
double
row
of
baD

bear

ings
press
fit
in

an
aluminum
die
cast

pump
body
The

bearings
are

per

manently
lubricated
and
sealed
to

pre

vent
loss
of
lubricant
and

entry
of
dirt

CO
2
installed

on
the
radiator

operates
the

cooling
system
at

higher
than
atmos

pheric
pressure

To
heater

From
heater

C0126

Fig
COol

Cooling
System

C0042

Fig
CO
2
Water

Pump
and

Timing
Chain
Couer

REMOVAL

1
Drain

coolant
into

a
clean
con

tainer

2
Loosen

bolts

retaining
fan
shroud

to

radiator
and
remove
shroud

3

I
Loosen
belt
then
remove
fan

blade
fan

spacer
and

pulley
from
hub

2
Loosen

belt
then
remove
fan

blade
from

torque
coupling
and

torque
coupling
and

pulley
from

hub

Air

conditioning
system
equipped

models

only

4
Remove

pump
assembly
and

gas

ket
from
front
cover

C0051

Fig
CO
3

Removing
Water

Pump

INSTALLATION

1
Be
sure
to
clean
the

gasket
sur

faces
in
contact
with

pU
flP
and
front

cover

Always
use
new

gaskets
when

installing
pump
assembly
Be

sure
to

tighten
bolts

i
l
Tightening

torque

Water

pump

securing
bolts

0
9
to
1
4

kg
m

6
5
to
10
1
ft
Ib

2
Fill

cooling
system
and

check
for

leaks
at

pump

3

InstaD
fan

pulley

spacer
or

torque

coupling
and

fan
blade

and

tighten
attaching
bolts

securely
Install

belt

and

adjust
for

specified
tension

4

Operate
the

engine
at

fast
idle

and

re

Check
for
leaks

S

Install
fan

shroud

Note

Ensure
that
clearance
between

shroud
and
fan
even
at

any

place

DISASSEMBLY

Water

pump
should
not
be
disas

sembled
Cooling

System

INSPECTION

Inspect
pump
assembly
for
the

following
conditions
and

replace
if

necessary

I

Badly
rusted

or
corroded

body

assembly
and
vane

2
Excessive
end

play
or

roughness

of

bearings
in

operation

Note
If

excessive
mechanical
seal

squeak
occurs
when

engine
is
mn

ning
use
suitable
water

pump
seal

lubricant
to

prevent
squeak

ADJUSTMENT

Check
belt
deflection
between

alternator
and

fan

pulley
by
a

force
of

10

kg
22
Ib

Fan
belt
deflection

8
to
12

mm

0
31
to
0
47
in

If

adjustment
is

necessary
loosen

bolt

retaining
alternator

adjusting
bar

to
alternator
Move
alternator
toward

or

away
from

engine
until
the

correct

tension
is

obtained

TORQUE
COUPLING

The

torque
coupling
keeps
the
fan

speed
at
2
900

rpm
rated

or
below
to

conserve

horsepower
at

high

engine

speed
It
also

helps
reduce
fan
noise
to

a
minimum

during
high
speed
opera

tion

This
unit
is
filled
with
a

special

silicone
oil
used

as
a
fluid

coupling

which
controls
the

fan

speed
Silicone

oil

can
not
be

replenished

The

torque
coupling
is
installed

only
on
the
model

equipped
with
the

air

conditioning
system
In
this
case

use
7
x
350
mm

13
78
in
diam

eter

cooling
fan

CO
3
C0052
t
Wheel

2
Disc

3

Bearing

Fig
CO

4

Torque
Coupling

REMOVAL

Lousen
fan

belt

2
Remove

fan
blade
from

torque

coupling

3
Remove

torque

coupling
from

pulley
and
water

pump
hub

by
re

moving
securing
nuts

INSTALLATION

I
InstaD
the

torque
coupling
in
the

reverse
order
of
removal

2
Install
belt
and

adjust
belt

ten

sian

DISASSEMBLY

The

torque
coupling
is
so

designed

that

it
can
not
be

disassembled

INSPECTION

Inspect
torque

coupling
for
oil

leak

age
If

necessary
replace

Cooling
System

TEM
COUPLlNG

Non
Califomia

model

equipped
with
air

conditioning

Tem
coupling
is

a

type
of
fan

coupling
which
is

provided
with
a

temperature
control

system

The
conventional

coupling
always

slips
the
fan
at

a

high

speed
under
a

constant

ratio

regardless
of
the

engine

cooling

requirement

The

slipping
ratio
of
the
Tem

coupling
however
is

properly
changed

with
the

cooling
requirement

ON
denotes
that

cooling
is

required
and
the
fan

operates
up
to

about
2

900rpm
When

high
cooling
is

not

required
during
cold
season
with

the

engine
warmed

up
etc
the

oper

ation

is

placed
under
OFF
condition

and
the
fan

slips
at
about
2

050

rpm

The
coiled
bimetal
thermostat

installed
on
the
front
center

portion
of

the
Tem

coupling
detects

temperature

of
air

passing

through
the
radiator

The
air

temperature
is

directly

relative

to
the

engine
coolant

tempera

ture

and
the
inside
slide
valve

is

opened
or

closed
as

required
and
thus

the
ON
OFF
control
is

performed

When
the
air

temperature
rises

the

bimetal
is

expanded
and
the
valve
is

opened
silicone

oil
is
forwarded

to
the

groove
that

transmits

torque
and
the

system
is

placed
under
ON

con

dition

When

the
valve
closes
silicone
oil
is

not

supplied
to
the

groove
oil
in

the

groove
is
accumulated

on
the
Tem

coupling
periphery
due
to
the
centrifu
1
Bi
metal

thermostat

2

Slide
valve

3

Reserve
chamber

fOl
OFF

4

Bearing

5

Coupling
part
labyrinth

6
Driven

part

C0130

Fig
CO
5

Tem

coupling

gal
force
and
led
into

the
reserve

chamber
Now
oil
is
eliminated
from

the

groove
and
the

system
is

placed

under
OFF
condition

With
this

system
when
fan

cooling

is

not

required
the

output
loss

IS

miniinized
and
noise
can
be
far

reduced

Q

i
tionalCOUPling

WATER
PUMP

SPEED

Q

ON

OFF

Tem
coupling

WATER
PUMP

SPEED

C0029

Fig
CO

6
Characteristic

of

Tern

coupling

I

SPECTION

Check
Tem

coupling
for

oil

leakage

or
bend
of
bimetaL

If

the
above

symptoms
are
found

replace
it

with
a
new
one
as
an

assembly

CO
4
THERMOSTAT

REMOVAL
AND

INSTALLATION

I
Drain

cool
nt

partiaUy

2

Disconnect

upper
radiator

hose
at

water

outlet

3

Disconnect
air

hose
for

air

injec

tion

systein
at
check
valve

Fxcept

FU

models

4

Loosen
belt

for
air

injechon

system
by
loosening
idler

pulley
se

curing
nut

and

adjusting
bolt

Except

FU
models

CD
@
ID

I

2

3
C0053

Idler

pulley

Nut

Water
outlet

Fig
CO
7

Disconnecting
Air
Hose
and

Loosening
Belt

Except
FU
models

5
Loosen
bolts
and
remove
idler

pulley
bracket

Except
FU
models

6
Disconnect
air

induction

pipe

FU
models

7
Remove

bolts
and
remove
water

outlet

gasket
and
thermostat
from

thermostat

housing

I

Thermostat

2
Air
check
valve

Except
FU
models

3
Water
outlet

Fig
CO

Removing
Thennostat

8

After

checking
thermostat
rein

stall
with
a
new

housing
gasket
in

place

9
Reinstall
water
outlet

Condition

Loss
of

water

Poor
circulation

Corrosion

Overheating

Over

cooling
Cooling
System

TROUBLE
DIAGNOSES
AND
CORRECTIONS

Probable
cause

Damaged
radiator
seams

Leaks

at
heater
connections

or
plugs

Leak
at

water

temperature
gauge

Loose

joints

Damaged
cylinder
head

gasket

Cracked

cylinder
block

Cracked

cylinder
head

Loose

cylinder
head
bolts

Restriction
in

system

Insufficient
coolant

Inoperative
water

pump

Loose
fan
belt

Inoperative
thermostat

Excessive

impurity
in
water

Infrequent
flushing
and

draining
of

system

Inoperative
thermostat

Radiator
fin
choked
with
mud
chaff
etc

Incorrect

ignition
and
valve

timing

Dirty
oil
and

sludge
in

engine

Inoperative
water

pump

Inoperative
torque
coupling
or

tem

coupling

Loose
fan
belt

Restricted
radiator

Inaccurate

temperature
gauge

Impurity
in
water

Inoperative
thermostat

Inaccurate

temperature
gauge

CO
7
Corrective
action

Repair

Repair

Tighten

Tighten

Replace

Check

engine
oil
for

contamination
and
reml

as

necessary

Replace

Check

engine
oil
in

crankcase
for

mixing

with
water

by
pulling
oil

level

gauge

Replace

Tighten

Check
hoses
for

crimps
and
clear
the

system

of
rust
and

sludge
by
flushing
radiator

Replenish

Replace

Adjust

Replace

Use
soft
clean
water
rain

water
is
satis

factory

Cooling
system
should
be
drained
and
flush

ed

thoroughly
at
least
twice
a

year

Permanent
antifreeze

Ethylene
glycol
base

can
be

used

throughout
the

seasons
of
the

year
and

change

periodically
at

intervals

recommended

Replace

Clean
out
air

passage
thoroughly
by
using
air

pressure
from

engine
side
of
radiator

Adjust

Refill

Replace

Replace

Adjust

Flush

radiator

Replace

Use
soft
dean
water

Replace

Replace

CLEANING
AND
INSPECTION

Dirt

gum
water
or
carbon
con

tamination
in
or
on
exterior

moving

parts
of
a
carburetor
are
often

respon

sible
for

unsatisfactory
performance

For
this

reason
efficient
carhuretion

depends
upon
careful
cleaning
and

inspection
while

servicing

Blow
all

passages
and

castings

with

compressed
air
and
blow
off
all

parts
until

dry

Note
Do
not

pass
drills
or
wires

through
calibrated

jets
or

passages

as
this

may

enlarge
orifice
and

seriously
affect
carburetor
calibra

tion

2
Check
all

parts
for
wear
If
wear

is
noted

damaged
parts
must
be
re

placed
Note

especially
the

following

I
Check
float
needle
and
seat
for

wear
If
wear
is

noted
assembly
must

be

replaced

2
Check
throttle
and
choke
shaft

bores
in
throttle
chamber
and
choke

chamber
for
wear
or
out
of
roundness

3

Inspect
idle

adjusting
needle
for

hurrs
or

ridges
Such
a
condition
re

quires
replacement
Engine
Fuel

3

Inspect
gaskets
to
see
if

they

appear
hard
or

brittle
or
if

edges
are

torn
or

distorted
If

any
such

condi

tion
is
noted

they
must
be

replaced

4

Check

filter
screen

for
dirt
or
lint

Clean

and
if
screen
is

distorted
or

remains

plugged
replace

5

Check

linkage
for

operating

condition

6

Inspect
operation
of

accelerating

pump
Pour
fuel
into
float
chamber

and
make
throttle
lever

operate
Check

condition
of
fuel

injection
from
the

accelerating
nome

7
Push

connecting
rod
of
dia

phragm
chamber
and

block

passage
of

vacuum
with
finger
When

connecting

rod
becomes
free
check
for
leakage
of

air
or

damage
to
diaphragm

Jets

Carburetor
performance
depend

on

jets
and
air
bleeds
That
is

why

these

components
must
be
fabricated

with
utmost
care
To

clean
them
use

cleaning
solvent
and

blow
air

on
them

Larger
inner
nwnbers

stamped
on
the

EF

29
jets
indicate

larger
diameters
Ac

cordingIy
main
and
slow

jets
with

larger
numbers

provide
richer
mixture

the
smaller
numbers
the
leaner
mix

ture

Conversely
the
main

and
slow
air

bleeds

through
which
air

to

passes

make
the
fuel

leaner
if

they
bear

larger

numbers
the
smaller

numbers
the

richer
fuel

Assembly

To
assemble
reverse

the
disassem

bly

procedure
taking
care
to
the

following

I
Thoroughly
wash
all
the

parts

before

assembling

2

Inspect
gaskets
to

see
if

they

appear
hard
or
brittle
or
if

edges
are

torn
or
distorted

If

any
of
such
undesirable
condi

tions
is

noted

they
must
be

replaced

3
Install

jet
and
air

bleed

having
the

Same
size

number
as
that
of

original

one

4

After
reassembling
carburetor

check
each

rotating
portion
or

sliding

portion
for
smooth

operation

e

In
o

L

1

Ignition
switch

2
Vacuum
switching

v3
lve

3

Top
detecting
switch

4
Function
check
connector

EC330A

i

Fig
EC
99

Checking
Top
Detecting

l

Switch

Vacuum

dela
valve

Remove
vacUum

delay
valve

2

Blow
air
from
th

port
of

the

distributor
side
The
vacuum

delay

valve
is
in

go
ij
condition
if
the
air

flows

through
the
valve

3

Try

again
from
the
opposit

side

of
the
valve
Th
valve
is
in

goo

condition
if
th
a
flow
resistance
is

greater
than

the

step
2
abov

Distributor
side

Carburetor
side

Distribu
tor
side

Carburetor
side

EC346

Fig
EC
100

Checking
Vocuum

Dewy
Valve
Emission

Control

Syst
m

4

If
the
condition
of

spark
delay

valve
is

questionable
dip
port
into

a

cup
filled
with
water
Blow
air
from

brown
face
side
Small
air
bubbles

should

appear

CAUTION

Be
c
areful
to
avoid

entry
of
oil
or
dirt

into
valve

7

E
C279

Fig
EC
101

Checking
Vacuum

D

lDy
Valve

CATALYTIC

CONVERTER

California
dels

DESCRIPTION

1

The

catalytic
converter

accelerates

the

chemical
reaction
of

hydrocarbons

CD
0
He
and

carbon
monoxide
O
in

the
exhaust

gas
and

changes
them
into

non
harmful

carbon
dioxide

C02

and
water

H20
This
chemical

reac

tiOD

process
requires
the

proper
a

mount
of
air
which
is

supplied
by
the

air

pump
Refer
to
the
item
AJ

S

This
air
is
called

secondary
air

The

Catalytic
converter
is
mounted

0

the
models
destinbd
for
California

OPERATION

Exhaust

gas
emitted

from
the
en

gine
contains

some
harmful
substances

due
to

incomplete
combustion
in

the

combustion
chamber
The
air

injection

stem
i

designed
to
reduce
the

con

tent
of

such
substances
in

the
exhaust

gas
In
this

system
the

secondary
air

is

led
from
the
ch
ck
valve
and

injected

in
o
the

exhaust
manifold
With
this

injection
of

the

secondary
air

hydro

carbons

He
and
carbon
monoxide

CO
in
the

exhaust

gas
are
gradually

oxidized
with

oxygen

02
in
the

secondary
air

and
converted
into
nOD

harmful
carbon
dioxide

C02
and

water

HP

The

catalytic
converter
further

cleans

engine
exhaust

gas
Through

catalytic
action
it

changes
residual

hydrocarbons
and

carbon
monoxide

contained
in

exhaust

gas
into

carbon

dioxide
and
water
before
exhaust

gas

is

discharged
to
the

atmosphere

0

Secondary
air

Carbon
monoxide

hydrocarbon

Carbon
dioxide

gas

Nater

EC

i

A

I
Front
tube

2

Catalytic
converter

3
Center
tube

4
Main
murner

EC
33
EC215

Fig
EC

I02
Function
of

Catalytic
Converter

The
3N71
B
trammission
is
a

fully

automatic
unit

consisting
primarily
of

a
3
element

hydraulic
torque
converter

and
two

planetary
gear
sets
Two

multiple
disc
c1utclies
a

multiple
disc

brake
brake

band
and
one

way
clutch

provide
the

friction
elements

necessary

to
obtain

the
desired
function
of
the

two

planetary
gear
ets

A

hydraulic
control

system
is

used

to

operate
the
friction
elements
and

automatic
shift
controls

TORQUE
CONVERTER

The

torque
converter
is

attached
to

the
crankshaft

through
a
flexible
drive

plate
Heat

generat
in
the

t
rque

converter
is

dissipated
by
circulating

the
transmission
fluid

through
an
oil

to

water

type
cooler
in

the
radiator

lower
tank

The

welded
comtruction

of
the

torque
co
verter

prevents
di
3

ssembly

or
service
unless

highly

specialized

equipment
is
available

Qj
gJ
Autpmatic
Trimsmissi6n

DEScRIPTION

FLUID

RECOMMENDAnON

Use
DEXRON

type
automatic

transmission
fluid

only

IDENTIFICATION
NUMBER

Stamped
position

The

plate
is

attached
to
the

right

han
side
of
transmission

case

AT
M

Fig
AT
l

Identification
Number
Identification
of
number

arranaemanta

JAPAJllUTOIlATlC
TRAJISIIISSIO

C8
Ull

MODEL
X
0
12
3

NO
7
6
0

1
2

34

Number

designation

76
0
I
2

34

L

Serial
productioo

number

for
the
month

Month
of

production

1
Jan

2
Feb

X

Oct
Y

Nov
Z

Dec

Lut

IJgUre
denotins

the
year
A

D

IJ

III

J

W

f

r
lrr

G

1

Transmission
case

2
Oil

pump

3
Front
clutch

4

Band
brake

5
Rear
dutch

6
Front

planetary
geat

7
Rear

planetary
gear
8
One
way
clutch

9
Low
4
Reverse
brake

10
Oil
distributor

11
Governor

12

utput
shaft

13
Rear
extension
14
Oil

pan

IS
Control
valve

16

Input
shaft

17

Torque
converter

18
Converter

housi

19

Drive

pia
te
Tightening

torque
T
of

bolts
and
nuts

kg
m
ft
lb

@
T
4

to
5
29
to
36

@
T

14
to
16
101

to
116

@
T
4

5

to
5
5

33
to
40

@
T

0
6
to
0
8
4

3
to
5

8

@

T
0
5
to
0
7

3
6
to

5
1

T
2

0
to
2
5

14
to
18

@
T

1
3
to
1

8
9

to
13

@
T

0
55
ta
0
75
4
0
to
5
4

CD
T

0
25
to
0
35
1
8
to
2
5

AT312

Fig
AT
2
3N71B

Automatic
Trammiuion

AT
2