1979 DATSUN 210 alternator belt

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

PRELIMINARY

CLEANING
AND

INSPECTION

Before

disassembling
engine
ob

serve
the
following
items

I

Prior
to

disassembling
check

outer

parts
for

sign
of
leak

past
their

gasketed
surfaces

2
Check
carburetor
and
fuel

pump

for
condition
fuel
hoses
for
deteriora

t
ion

cracks
or
otherwise

leakage
of

fuel

past
their

jointed
or

connected

surfaces

3

Wipe
dust
and
mud
off

engine

4

Inspect
outer

parts
for
visual

faults
and
broken
or

missing

parts
such

as
bolts
and

nuts

5
Check

piping
and
electrical
cir

cuits

for
deterioration
breakage

fittings
discontinuity
or
insulation

DISASSEMBLY

To

remove

engine
from
car
refer
to

Section
ER

for
Removal

1
Remove

starting
motor
then
re

move
transmission
from

engine

2
Remove
clutch
assembly

3
Remove

alternator
fan
belt
alter

nator
bracket
and
alternator
adjusting

bar

4
Remove

idler
pulley
air

pump

belt
and
idier

pulley
bracket

If
so

equipped

Note
Loosen
idler

pulley
nut
and

belt

adjusting
bolt
in
that
order

@

1

Idler

pulley
nut

2
Belt

adjusting
bolt

3
Air

pump
belt

4
Idler

pulley
bracket
EM527

Fig
EM
2

Removing
Idle

Pulley

Air

Pump
Belt
and
Idle

Pulley
Bracket
Engine
Mechanical

ENGINE
DISASSEMBLY

5

Remove
air

pump
pulley
air

pump
and
air

pump
bracket
If

so

equipped

6
Remove
fan
fan

spacer
and

pul

ley

7
Remove

oil
level

gauge

8
Remove

distributor

cap
and

high

tension

cables
as
an

assembly

9
Disconnect
distributor
vacuum

line
from
distributor
and
remove
dis

tributor

10
Disconnect

fuel
line
from

carbu

retor

II
Remove
fuel

pump
and
fuel
line

12
Remove
water
outlet
and

thermostat

13
Remove

engine
mounting
brack

et
R
H

14
Remove

oil

pump
and
filter
as

sembly

EL043

Fig
EM

3

Removing
Oil

Pump

15

Remove

spark
plugs

16

Install

Engine
Attachment

KVlOI02500
to

cylinder
block

using

engine

f1
ounling
bracket

R
H
attach

ing
studs
fuel

pump
attaching
studs

and
alternator

bracket

attaching
bolt

holes

17
Mount

engine
on

Engine
Stand

ST050I
SOOO

Fig
EM
4

EM
3
18
Remove

engine
mounting
brack

et

L
H

19
Disconnect

air
vacuum
and

blow

by
hoses
from
air

cleaner

20
Remove
air
cleaner
and
air

cleaner
brackets

21

Remove
vacuum
control
valve

assembly
and
bracket

as
a
unit

22
Remove
carburetor
and
baffle

plate

23

Remove
E
G
R
control
valve

24

Remove
intake
and
exhaust

manifold
assemblies

EM528

Fig
EM
5

Removing
Manifold

25
Remove
P
C
V

hose

pipe
con

nector
to
control
valve

26
Remove

rocker
cover

27
Loosen
valve
rocker

adjusting

nut
and
turn

adjusting
screws
out
to

disengage
push
rods
Then

evenly

loosen
rocker
shaft
bolts

28
Remove
rocker
shaft

assembly

EM453

Fig
EM
6
Removing
Rocker

Shaft

Assembly

29
Withdraw

push
rods
and

keep

them
in

correct
order
1

30
Loosen

cylinder
head
bolts

a

little
at
a
time

in
the

sequence
shown

in

Fig
EM
and
remove

cylinder

head

and
fan
belt

Be

sure
that
belt
deflection
is
held

within

specified
range
when
moderate

force
is

applied
midway
between

pul

leys

Belt
deflection

8t012mm

0

31
to
0
47
in

Force

10

kg
22Ib

Deflection
Fan

pulley

f

Crank

pulley
Alternator

pulley

EM768

Fig
EM
81
Fan
Belt
Temion

52
Install
air

pump
bracket
air

pump
and
air

pump
pulley
If

so

equipped
Engine
Mechanical

53
Install
idler

pulley
bracket
air

pump
belt
and

idler

pulley
If

so

equipped
See

Fig
EM
2

Be
sure
deflection
of
air

pump
belt

is

same
as
that
of
fan
belt

Belt
deflection

8
to
12
mm

0
31
to
0
47
in

Force

10

kg
22Ib

Deflection

10

kg
22Ib

Fig
EM
82
Air

Pump
Belt
Tension

EM
17
54

Install
clutch
and
cover
assem

bly
using
Clutch

Aligning
Bar

STI0610000

For

details
refer
to
Installation
in

CL
Section

Fig
EM
83

Installing
Clutch

Assembly

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

REMOVAL

1

Disconnect

battery

negative

cable

2

Disconnect
two

lead
wires
and

oonnector
from
alternator

3

Loosen

adjusting
bolt

4

Remove
alternator
drive

belt

5

Remove

parts
associated
with

alternator
from

engine

6
Remove
alternator

from
car

DISASSEMBLY

I
Remove

through
bolts

Separate

front
cover
with
rotor

from
rear
cover

with
stator

by
lightly

tapping
front

bracket
with
a

wooden
mallet

rnJ

J

i

EE525

Separating
Front

COI
T

Fig
EE

31

2

Place
rear
cover
side
of

rotor
in
a

vise

with
soft

jaw
and

remove

pulley

nuts
Then
remove

pulley
and
fan

from
rotor
shaft

3

Remove

setscrews
from

bearing

retainer
and

separate
rotor
from
front

EE526

Fig
EE
32

Removing

Pulley
and
Fan

tr

s

0
27

Fig
EE
33
Removing
Rotor
Engine
Electrical

System

4
Pull

rear

bearfug
off
rotor

assem

bly
with
a

bearing
puller
or

press

EE037

Fig
EE
34

Pressing
Out

Rear

Bearing

I

EO

Fig
EE

35
Pulling
Out
Rear

Bearing

5

When

removing
IC

regulator

only

proceed
as
follows

I

Using

soldering
iron

disconnect

wire

connecting
diode

set

plate
to

brush
at
brush

terminal

2

Remove

bolt

securing
diode
set

plate
to
rear
cover
side
face

3

Remove
nut

securing
battery

terminal
bolt

4

To
facilitate
removal

s1ighly
lift

stator

coil

together
with
diode
set

plate
from

re
r
cover
Then
remove

screw

connecting
diode
set

plate
with

brush

5

Separate
stator
coil
and
diode

together
with

rear
cover
and

remove

brush
and

IC

regulator

6
Disconnect
stator

coil
lead
wires

from
diode
terminals
with

a

soldering

iron

Remove

screws

securing
brush
re

move
stator
from

rear
cover

EE648

Fig
EE
36

Removing
Stator

Coil

EE
14
7

Disconnect
wire
from
diode
tor

minal
at
brush
terminal
with

soldering

iron

Remove

brush

assembly
with
IC

regulator
by
loosening
screws

8
Remove
diode

holder

by
loosen

ing
screws

acefii
li

E
E649

Fig
EE

37

Removing
Diode
Holder

INSPECTION
AND

REPAIR

ROTOR
INSPECTION

I

Continuity
test
of
rotor
coil

Apply
tester
between

slip

rings
of

rotor
If

there
is

no

continuity
field

coil
is

open

Replace
rotor

assembly

Fig
EE

38

Continuity
Test

of

Rotor
Coil

2

Ground
test
of
rotor
coil

Check

continuity
between

slip
ring

and

rotor
core
If

continuity
exists

replace
rotor

assembly
because
rotor

coil

or

slip
ring
may
be

grounded

EE532

Fig
EE
39
Te

ting
Rotor
Coil

for
Ground

Engine
Electrical

System

TROUBLE

DIAGNOSES
AND

CORRECTIONS

I

BATTERY

Battery
is
not

charged
correctly

I

Correctly
adjust
belt
tension
of
alternator

2

Complete
connections
in

charging
system

3

Securely
connect

battery
terminals

Lighting
Joadtest

I
Make

sure
that

electrolyte
level
is
correct

2
Crank

engine
for

three
seconds
with

ignition
system
open

3
Turn
on

headlight
low
beam
for
one
minute

and
then
measure

specific

gravity
of

each
cell
of

battery

Specific
gravity
of
each
cell
is

less

than
1

200

N50Z
or
1

220

NS70

1
When

specific
gravity
can
not
be

raised
above
1

200

by
charging

the

battery
is
run
down
Specific
gravity
of

some
cells
is

above
1
200

N50Z
or
1

220

NS70
but
others

show
lower

specific
gravity

Unbalance
is
within

0
05

Discharged

battery
Charge
it

and

repeat

lighting
lood
test

Unbalance
is
within
0
05

Batter
is

satisfactory

EE
J4
Specific
gravity
of
each

cell
is

above

1

200

N50Z
or
1

220
NS70

Unbalance
of

specific
gravity
be

tween
cells
exceeds
0
05

I

Battery
is

run
down

Unbalance
of

specific
gravity
be

tween
cells
exceeds
0

05

I

Battery
is

run
down

Engine
Electrical

System

III

ALTERNATOR

Including
voltage
regulator

Condition

No

output

Excessive

output

Low

output

Noisy
alternator
Probable
cause

Sticking
brushes

Dirty
brushes
and

slip
rings

Loose
connections

or
broken
leads

Open
stator

winding

Open
rotor

winding

Open
diodes

Shorted
diodes

Shorted
rotor

Shorted
stator

Ground
BAT

terminal

Broken
fan
belt

Voltage
regulator
breakdown

Poor
connection
of
alternator

S
terminal

Open
diode

Loose
or
worn
fan
belt

Slicking
brushes

Low

brush

spring
tension

Voltage
regulator
breakdown

Dirty

slip
ring

Partial
hort

ground
or

open
in

stator

winding

Partially
shorted
or

grounded
rotor

winding

Open
or

damaged
diode

Loose

mounting

Loose
drive

pulley

Broken
ball

bearing

Improperly
seated
brushes

EE

36
Corrective
action

Correct
or

replace
bru
hes
and
brush

springs

Clean

Retigliten
or

older
connection

Replace
leads
if

necessary

Repair
or

replace
stator

Replace
rotor

Replace

Replace

Replace
rotor

Replace

Replace
insulator

Replace

Check

regulator

operation
and

repair
or

replace
a

required

Correct

Replace

Retighten
or

replace

Correct
or

replace
brushes
and

springs
if

necessary

Replace
brush

spring

Check

regulator
operation
and

repair
or

replace
as

required

Clean

Replace
tator

Replace
rotor

Replace
diode

Retighten
bolts

Retighten

Replace

Seat

correctly

REMOVAL

It
is
much
easier

to
remove

engine

and
transmission

as
a
single
unit
than

to

remove
alone
After
removal

engine

can
be

separated
from
the
transmission

assembly

WARNING

a
Place
wheel
chocks
in
fronl

of

front

wheels
and
in

rear
of

rear

wheels

b
Be
sure
to
hoist

engine
in
a
safe

manner

c
You
should
not
remove

engine

until
exhaust

system
has
com

pletely
cooled
off

Otherwise

you
may
burn

your

self
and
or
fire

may
break

out
in

fuel
line

Note
Fender
coven
should
be

used

to

protect
car

body

1
Disconnect

battery
ground
cable

from

battery
terminal
and
fusible
link

at
wire

connector

2
Remove
hood

as
follows

CAUTION

Have
an
assistant

help
you
so
as
to

prevent

damage
to

body

I
Mark
hood

hinge
locations
on

hood
to
facilitate
reinstallation

2

Support
hood

by
ltand
and
re

move
bolts

securing
it

to
hood

hinge

being
careful
not
to
let
hood

slip
when

bolts
are

removed
See

Fig
ER
2

3
Remove
hood
from
hood

hinge

f

Il

I

BF133A

Fig
ER
2

Removing
Hood

Remove

under
cover

Drain

radiator
coolant
and

engine
3

4

oil

5

Disconnect

upper
and
lower
hoses

from
radiator
and
disconnect
oil

cooler
hoses
automatic
transmission

only

6
Remove
four
bolts

securing
radia
Engine
Removal
Installation

tor

to

body
and
detach
radiator
after

removing
radiator
shroud

7

Remove
air
cleaner

assembly

from
carburetor
as
follows

1
Remove

fresh
air
duct
from
air

cleaner

2
Remove
hot
air
duct
from
air

cleaner

3

Loosen
air
cleaner
band
bolt

4
Disconnect
air

cleaner
to
air

pump
hose

at
air
cleaner

5

Disconnect
air
cleaner

ta
rocker

cover
hose

at
rocker
cover

6
Disconnect
air

cleaner
to
A
B

valve
hose
at
air

cleaner

7
Disconnect
air
cleaner
to
related

vacuum
hoses
at
air

cleaner

8
Disconnect
accelerator
control

wire
from
carburetor

9
Disconnect

the

following
cables

wires

and
hoses

Wire

to
auto
choke
heater

Wire
to

throttle

opener
cut
solenoid

or

throttle
switch

Wire

to
fuel
cut
solenoid

Wire
to

vacuum
switching
valve

High
tension

cable
between

igni

tion
coil
and
distributor

Battery
cable
to
starter
motor

Wire
to
distributor

Wire

to
thermal
transmitter

Wire

to
alternator

Engine
ground
cable
oil

pressure

switch
and

engine
harness
No
2

See

Fig
ER
3

o

1
Ground
cable

2

Engine
harness
No

2

3
Oil

pressure
switch

Fig
ER

3
EA368

Disconnecting
Cable
and

Wire

Fuel
hose

at
fuel

pump
and
fuel

return

hose
at
connection

Air

pump
air

cleaner
hose

Carbon
canister
hoses

Heater
inlet
and
outlet
hoses
if

so

equipped

ER
3
Vacuum
hose
of

brake
booster
at

intake
manifold

Air
conditioner

equipped

model

10
Remove

compressor
belt

To

remove
loosen
idler

pulley
nut

and

adjusting
bolt

1
Remove
air

pump

2
Remove

compressor
retaining

bolts
and
move

compressor
toward

fender
to
facilitate
removal
of

engine

Nole
Never

discharge
gas
from
com

pressor
while
work
is

being

per

formed

II

Compressor

EA478

Fig
ER
4

Location

of
Air

Compressor

3
Disconnect
vacuum
hose
of
air

conditioner
from
connector
of
intake

manifold

4
Remove

F
i

C
D

actuator
from

bracket

II
Remove
clutch

operating
cylin

der
from
clutch

housing
manual
trans

mission

only

dJ

Tightening
torque

Clutch

operating
cylinder

E
A3

to
clutch

housing

3
1

to
4
1

kg

22
to

30
ft
lbl

Fig
ER
5

Removing
Clutch

Operating

Cylinder