1979 DATSUN 210 oil temperature

DATSUN
210
Model
8310
Series

SECTIONET

ET

ENGINE
TUNE
UP

CONTENTS

EMISSION
CONTROL
DEVICES

BASIC
MECHANICAL
SYSTEM

ADJUSTING
INTAKE
AND
EXHAUST

VALVE
CLEARANCE

CHECKING
AND
ADJUSTING
DRIVE

BELTS

CHANGING
ENGINE
OIL

REPLACING
01
L
FI
L
TER

CHANGING
ENGINE
COOLANT

CHECKING
COOLING
SYSTEM
HOSES

AND

CONNECTIONS

CHECKING
ENGINE
COMPRESSION

IGNITION
AND
FUEL

SYSTEM

CHECKING
BATTERY

CHECKING
AND
ADJUSTING

IGNITION
TIMING

CHECKING
IGNITION
WIRING

CHECKING
AND
REPLACING
SPARK

PLUGS

CHECKING
AND
ADJUSTING
CARBURETOR

IDLE
RPM
AND
MIXTURE
RATIO

CHECKING
CHOKE
MECHANISM

Choke

plate
and

linkage

CHECKING
FUEL
SHUT
OFF
SYSTEM

FU
models
ET
2

ET
3

ET
3

ET
3

ET
3

ET
3

ET
4

ET
4

ET
4

ET
5

ET
5

ET
5

ET
6

ET
6

ET
7

ET
9

ET
9
REPLACING
FUEL
FILTER
ET
10

CHECKING
FUEL
LINES

Hoses

piping
connections
etc
ET
10

REPLACING
AIR
CLEANER

FILTER
ETlO

CHECKING
AUTOMATIC
TEMPERATURE

CONTROL
AIR
CLEANER
ET
10

EMISSION
CONTROL

SYSTEM
ET
11

CHECKING
VACUUM
FITTING
HOSES

AND
CONNECTIONS
ET
11

REPLACING
AIR
PUMP
AIR
CLEANER
FILTER

Except
FU
models
and
Canada
models
E

1122i

REPLACING
AIR
INDUCTION
VALVE
FILTER

FU
models
and
Canada
models

E
tlil1r2
C

REPLACING
PCV
VALVE
AND
FILTER

ETf

CHECKING
VENTI
LATION
HOSES

E1P12

CHECKING
VAPOR
LINES

Eli
J2

CHECKING
FUEL
TANK
VACUUM
RELIEF
I

f
III

VALVE

ET
13

REPLACING
CARBON
CANISTER
W

FILTER
ET
d

SERVICE
DATA
AND

SPECIFICATIONS
ET
14

TROUBLE
DIAGNOSES
AND

CORRECTIONS
ET
16

SPECIAL
SERVICE
TOOL
ET
23

Engine
Tune

up

BASIC
MECHANICAL
SYSTEM

ADJUSTING
INTAKE

AND
EXHAUST

VAL
fE
CLEARANCE

Note
After

tightening
cYlinder
head

bolts

adjust
intake
and
exhaust

valve

clearances

Valve
clearance
ai
ljustment
cannot

be

made
while
the

engine
is
in

opera

tion

To

adjust
proceed
as
follows

I
Start

engine
and

warm
it

up
uritil

water

temperature
indicator

points
to

the
middle
of

gauge
Then

stop
engine

2
Rotate

crankshaft
to

bring
No
I

cylinder
in

top
dead
center
on
its

compression
stroke

3
Remove

valve
rocker

cover

Adjust
valve
clearance
at

following

four

points
while

engine
is
still
hot

CD
Exhaust
valve

of
No
I

cylinder

@
Intake
valve
of
No
I

cylinder

@
Intake
valve
of
No
2

cylinder

@
Exhaust

valve
of
No
3

cylinder

Note

Numbers
in

circle

agree
with

those
in

accompanying
sketch

tiri

Fig
ET
1

Adjusting
Value
Clearanu

4

Again
rotate
crankshaft
one
turn

so
that

No
4

piston
is
in

top
dead

center
on
its

ompression
stroke
Ad

just
following
valve

s

CID
Exhaust

valve
of
No
2

cylinder

@
Intake
valve
of
No
3

cylinder

j
Intake
valve
of
No
4

cylinder

@
Exhaust
valve
of
No
4

cylinder

Adjustment
should
be
made
while

engine
is
hot
After
all
valves
have
been

adjusted
correctly
tighten
lock

nut

firmly
to
secure
ihe

adjustment

Valve
clearance

Hot

Intake

0
35

mm
0
014

inl

Exhaust
0
35
mm

0
014

in

tJl
Tightening
torque

Valve

rocker

adjusting
nut

1
6

to
2
2

kltm

12

to
16
ft
lb

Alternator

Crankshaft

pulley

Unit
mm

in

Idler

pulley

Fig
ET
2

CHANGING
ENGINE

OIL

1

Check
if
oil
is
diluted
with
water

or

gasoline
Drain
and
refill
oil
if

necessary

Note

a
A

milky
oil
iiulicates
the

presence

of

cooling
water
Isolate
the
cause

and
take
corrective
measure

b
An
oil

with

extremely
low

viscosity

indicates
dilution
with

gasoline

2
Check

oil
level
If
below
the

specified
level
raise
it

up
to
the
H

level

3

Change
engine
oil
in

accordance

with
the
maintenance

schedule

Engine
oil

capacity

A14

With
oil
filter

3
7
liters

3
U
US

qt
3
Yo

Imp
qtl

ET3
CHECKING
AND

ADJUSTING
DRIVE

BELTS

I

Check
for

cracks
or

damage
Re

place
if

necessary

2

Normal
drive

belt
deflection
is

showndI
figure
below
when

moderate

thumb

pressure
is

applied
midway

between

pulleys

Thumb

pressure
10

kg
221bl

Idler

pulley

Compressor
p1
111ey

AC710

Checking
Drive
Belts

for
Deflection

Without
oil
filter

3
2
liters

3

USqt
2

U

ImP
ltl

A15

With
oil
filter

3
3
liters

3
US

qt
2
U

Imp
qd

Without
oil
filter

2
8
liters

3
us

qt
2

Imp
qd

REPLACING
OIL

FILTER

The
oil
filter
is
a

cartridge
type
and

can
be

removed

using
Oil
Filter

Wrench
STl9320000

I
Check
for

oil
leaks

past
gasketed

Oange
If

leakage
is

found
retighten

just
enough
to

stop
leakage
If
reo

tightening
is

no

longer
effective
re

pl
ice
mter
as

an

assembly

2

When

installing
oil
mter

tighten

by
hand

Note
Do
not

overtighten
oil
filter

lest

leakage
shoUld
occur

CHANGING
ENGINE

COOLANT

PERMANENT

ANTI
FREEZE

COOLANT

Note

The

permanent
anti

freeze

coolant
is
an

ethylene
glya
l
base

product

containing
chemical
in

hibitors
to

protect
the

cooling

system
from

rusting
and
corrosion

The
anti

freeze
does
not
cOntain

any
glycerine
or

ethyl
alcohol
It

will
not

evaporate
or
boil
a

ay
and

can
be

ilsed
with
either

high
or
low

temperature
thermostats
It

flows

freely
transfers
heat

efficiently

and
will
not

clog
the

passages
in

the

cooling

system
The
anti
freeze

must
not
be
mixed

with
other

product
This
coolant
can
be
used

throughout
the
seasons
of
the

year

Whenever
coolant
is

changed
the

cooling

system
must
be
flushed
and

refilled
with
a
new
coolant
Check
the

coolant
level

See
instructions

attached
to

the

anti
freeze
container
for

mixing
ratio

of
anti
freeze

to
water

CHECKING
COOLING

SYSTEM
HOSES

AND
CONNECTIONS

Check
hoses
and

fittings
for
loose

connections

or
deterioration
Re

tighten
or

replace
if

necessary

INSPECTION
OF
RADIATOR

CAP

Apply
reference

pressure
0

9

kgj
cm2
13

psi
to

radiator

cap
by

means
of
a

cap
tester
to

see
if
it
is

satisfactory
Replace

cap
assembly
if

necessary
I

j
ngine
Tune

up

ET012

Fig
ET

3

Testing
Radiator

Cap

COOLING
SYSTEM

PRESSURE
TEST

Witli
radiator

cap
removed

apply

reference

pressure
1
6

kgfcm2
23

psi
to
the

cooling
system
by
means

0

no

Fig
ET
4

Water

capacity
M
Tmodelsl

Without
heater

5
2
liten

5
1f
US

qt
4

Imp
qt

With
heeter

5
9
Iiten

6
4
US

qt
5

Y

Imp
qt

Water

capacity
AfT
modelsl

Without
heater

5
0
liters

5

y
US

qt
4

Imp

qt

With
heater

5
7
liten

6
US

qt
5

Imp
ill

CHECKING
ENGINE

COMPRESSION

Note

a
To
check

cylinder

compression
it
is

essential

to
remove
all

spark
plugs

The

purpose
of
this
test
is
to

ET
4
determine
whether
there
is
exces

sive

leakage

past
piston
rings
head

gasket
etc
To
test

engine
should

be
heated
to
the

operating
t
M

ture
and
throttle
valve

opened

b

Cylinder
compre
on
in

Cylinders

should
not
be
less

than
llO
of
the

highest
reading
Different

compres

sion

in
two
ore
more

cYlinder
usual

ly
indicates
an

improperly
seated

valve
or
broken

piston
ring

c
Low

compression
in

cylinders
am

result
from
worn

piston

rings
This

trouble

may
usuaDy
be
accom

panied
by
ex
ssive
fuel

consump

tion

I

Warm

up
engine
sufficiently

2

Disconnect

aU

spark

plugs

3
Disconnect
anti
dieseling

solenoid

valve
connector

4

Properly
attach
a

compression

tester
to

spark

plug
hole
in

cylinder

being
tested

FiI
ET
S
ET529

Testing
Compre
sion

Pr
s8ure

5

Depress
accelenit6r

pedal
to

open

throttle
and
choke

valves

Note
Do
not

pump
pedal

6
Start

engine
as

quickly
as

pos

sible

Compression
pressllre

kg
cm2
ii
at

rpm

Standard
13

5
192

350

Minimum
12
5

1781
350

If

cylinder

compression
in
o
e

or

more
cylinders
is
low

pour
a

small

quantity
of

engine
oil
into

cylinders

through
the

spark

plug
holes
and
retest

compression

I

If

addingoil
helps
the

compres

Condition

IMPROPER
ENGINE

IDLING

Fuelsystam
out
of

order

Low

1
ion
Engine
Tune

up

Probable
cause

Clogged
or

damaged
carburetor

jets

Incorrect
idle

adjustment

Clogged
air
cleaner
filter

Damaged
manifold

gaskets
or
carburetor

insulator

bnproper
float
level

adjustment

LoOse
air
hoses

or
air
fuel
mixture

hoses
of

carburetor

Malfunctioning
carburetor
choke

Malfunctioning
anti

backfire
valve

Malfunctioning
automatic

temperature
con

trol
air
cleaner

Inoperative
idle

compensator

Carbon
canister

purge
line
hose

damaged
or

disconnected

Stick
E
F
E
v

ve
shaft

Othen
Incorrect
valve
clearance

Extremely
low
revolution

Malfunction
of

the

ignition
system
spark

plug
high
tension
cable

ignition
coil
etc

incorrect
basic

ignition
timing

Malfunction
of

chol
e

valve
or

linkage

Malfunction
of

vacuum
motor

sensor
or

hoses
of

air
cleaner

Incorrect
idle

adjustment

Cloged
air
cleaner

fIIter

Malfunction

of
idle

compensator
of

air

cleaner

Malfunction
of
E
G
R

control
valve

Loose
manifold
and

cylinder
head
bolts

Higli

engine
idle

opem
Dragged
accelerator

linkage

Incorrect
idle

adjustment

Malfunction
of

T
O

C
s

system
or
tluottle

opener
Except
FU
models

Malfunction
of

speed
switch
and
harness

Except
FU
models

ET

18
Corrective
action

Clean
or

replace

Adjust

Replace
element

Replace
gasket
or
insulator

Adjust

Check
for
loose
connections

Check

lUId
adjust

Check
for
loose
connection

of
vacuum
hose

Check
A
I

C
air

cleaner

Check
for
connection

of
idle

compensator

hose
or

replace
idle

compensator

Connect
or

replace

Repair

Previously
mentioned

Adjust

Adjust

Replace

Adjust

Adjust

Check
for
loose
hoses

Replace
system
com

ponentsif
necessary

Adj
lSt
idle

speed

Replace
air

cleaner
filter

Replace

Clean
or

replace

Retighten
bolts

Check
ahd
correct
accelerator

linkage

Adjust
idle

speed

Check
for
loose
vacuum
hose
and
harness

connections

Adjust
replace
if
necessary

Check
for
loose
connections

Repair
or

replace
if

necessary

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

10

Replenish
coolant
and

check
for

leaks

INSPECTION

I

Submerge
thermostat
in

hot

water
SOC
90F
above
the

specified

temperature
Refer
to
Service
Data

and

Specifications

2

After

preparing
for
the
marked

screwdriver

at
about
8

mm
0
31
in

from
the

tip
inspect
the
lift

height

H
of
valve

by

inserting
it

f

C0097

Fig
CO
g
In

pecting
Thermostat

3
Now

place
thermostat
in

water

SoC
90F
below
the

specified
temper

ature

If
thermostat
does
not

operate
at

the
above

specified
temperature
it

must
be

replaced
because
it
cannot
be

repaired

Note

If

necessary
check
a
new
ther

mostat
before

installing
it
in

the

engine

RADIATOR

The
radiator
filler

cap
is

designed
to

maintain
a

pre
set

pressure
0
9

kgfcm2

13

psi
above

atmospheric

pressure

The
relief
valve

consisting
of
a

blow
off
valve

and
a

vacuum
valve

helps
to

prevent
the

coolant
from

boiling
by
giving

pressure
to
it
How

ever
when
the

pressure
is

reduced

below

atmospheric

pressure
the
vacu

wn
valve
allows
air
to

re
enter
the

radiator

preventing
the
formation
ofa

vacuum
in
the

cooling
system

On
models

equipped
wi

th
the
au
to

malic

transmission
the
oil
cooler
is
Cooling
System

combined
with
the
radiator
to

cool

transmission

fluid

REMOVAL
AND

INSTALLATION

1
Drain

coolant
into
a

clean
con

tainer

2
Disconnect
radiator

upper
and

lower
hoses

On
models
with
automat

ic

transmission
disconnect
cooler
inlet

and
ou
tlet
lines

from
radiator

3
Rem
Ne
fan
shroud

retaining

bolts
and
remove
fan
shroud

4
Remove
radiator

retaining
bolts

and
then

remove
radiator

upward

S
I

nstaD
radiator
in

the
reverse
se

quence
of
removal
Note
the
fol

lowing

I
Insert

hoses
in
their

positions

until

they
bottom

2
Ensure
that
arrow
marks
on

hoses

are
clearly
visible
from

upper

direction

when
hoses
are
assembled

3
Ensure
that
clearance
between

radiator
hose
and

any

adjacent
parts
is

30
mm
1
18
in
min
On
air
condi

tioner

equipped
models
a
minimum

clearance
of
18
mm
0
71
in
should

exist
between

compressor
and
hose

4

Ensure
that

clearance
be
tween

shroud
and
fan
is

even
at
any
place

Note
Be
careful
not
to

damage
radi

ator
fins
and
core
tube
when
install

ing

INSPECTION

Radiator

cap
should
be
checked
for

working
pressure
at

regular
tune

up

intelVals
First
check
rubber
seal
on

cap
for
tears
cracks
or
deteriontion

after

cleaning
it
Then
ins
taD
radiator

cap
on
a

tester
If

cap
does
not
hold

or

will

not
release
at
the

specified
pres

sure

replace
cap

Fig
CO
lO

Testing
Radiator

Cap

CO
5
Also

inspect
radiator
for

leakage

using
cap
tester
and

applying
a

pres

sure
of
1

6

kgfcm2
23

psi

If

a

leakage
is
detected

repair
or

replace
radiator

ET116

Fig
CO
II

Testing
Cooling
System

Prtuurt

RADIATOR

RESERVOIR
TANK

OPERATION

The
radiator
reservoir
tank
is

mounted
to
the

right
hand
side
core

support
through
the
bracket
When

the

coolant

temperature
in
the
radiator

rises

and

pressure
builds

up
to
an

extent
the

pressure
relief
valve

provided
in

the
radiator

cap

opens
to

release
excess
coolant
into

the
re

servoir

tank
When
the
coolant

temper

ature
lowers
and

pressure
decreases
in

the
radiator
the
vacuum
valve

provid

ed

in
the
radiator

cap
opens
to
allow

the
coolant
to

re
enter
the
radiator

u

V

O
I

MAX
Ii

1i

i

iT

1
I

I

11

1

i

MINij

o

f

G

p

rl

MAX
ii
i

p

It

ot

MINi
II

L
Cooling
System

l

CQ074

Pressure
relief
valve

opens

f

C007S
Vacuum
valve

opens
INSPECTION

1
Check
the
amount
of

coolant
in
the

reservoir
tank
If
the
coolant
level

is

below

the
MIN
level
remove

the
re

servoirtank
ruler

cap
and
add

enough

oolant
to
reach
MAX

level

If
the
reservoir
tank
is

empty

check

the
coolantlevel
in
the

radiator

If
the
coolant
in

the
radiator
is

insuf

ficient

pour
it
into

radiator

up
to
the

radiator

cap
and

also

pour
it
into
the

reservoir

tank
until
MAX

level

If
the

coolant
in
the
reservoir
tank

d
ecreases

abnormally

rapid
check
for

a
leak
in
the

cooling

system

REMOVAL
AND

INSTALLATION

1
Reservoir
tank
is

only
inserted
to

reservoir
tank

bracket
and
can
be

easily
removed

To
install
reservoir
tank
reverse
the

order
of

remova

Fig
CO
12

Opefation
of
ReserVoir
Tank

SERVICE
DATA
AND

SPECIFICATIONS

Thermostat

Valve

opening

temperature
Oc
OF

Maximum

valve
lift

mmjOC
in
oF

Radiator

Type

Manual
transmission

Automatic
tralUJ1lission

Cap
relief

pressure
kg
cm2

psi

Testing
pressure

kg
cm
2

psi

Fan

Fan

belt
deflection

mm
in

cO

6
Temperate

type
Frigid
type
Tropical
type

82

180
88

190
76
5

I
70

8

95
8
loo
8
90

0
3
I

203
0
31j2
i
2

0
31
194

Corrugated
fm

type

Corrugated
fm

type
equipped
with
oil
cooler

0
9

I
3

1

6
23

8
to
12

0
31
to
0
47

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