stop start DATSUN 210 1979 Service Manual

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

35
to
45

pm

Automatic
transmission

in
60

position

10
to
20

pm

FU
model

60
to
70

rpm

13

I
Remove

cap
and
connect
air

hose
to
air
check
valve

Except

Canada
and
FU
models

2
Remove

cap
and
connect

air

hose
to
air

induction

pipe
Canada

and
FU
models

If

engine
speed
rises

readjust
it

to

the

specified
speed
with

throttle
ad

justing
screw

Note
Check
throttle
return

spring
for

CI3cks

squareness
or
deformation

if

necessary

replace
with
a
new

one

14
On
FU
models

proceed
as

follows

Open
throttle
valve

by
turning

throttle
shaft
then
close
it
And

make

sure
throttle
valve
switch
of
fuel
shut

off

system
operates
click
sound
is

heard
or

continuity
turns
to
OFF

when
throttle
valv

is
closed

If

not

adjust
throttle

valve
switch

In
air

conditioner

equipped
models

inspection
in

step
13
should
be

carried
out
when

engine
is

running

with
air

conditioner
in
ON

F
I

C
D
is

actuated

Refer
to

Checking
Fuel
Shut
off

System
in
this
section

Idle
limiter
cap

Do

not
remove
this
idle
limiter

cap

unless
necessary
If
this
unit
is
re

moved
it
must
be

readjusted
at
the

time
of

reinstallation
To

adjust

proceed
as
follows

I
After

adjusting
throttle
or
idle

speed
adjusting
screw
check
to

be
sure

that
the
amount
of
CO

contained
in

exhaust

gases
meets
the
established

standard

2

Install
idle
limiter

cap
in

position

making
sure
that
the
adjusting
screw

can
rotate
another
1
8
turn
in
the

CO
RICH
direction
Engine
Tune

up

CO
rich

l
8

rotation

CO
lean

ISo

Idle
limiter

cap

ET031

Fig
ET
16

Setting
of
Idle
Limiter

Cap

CHECKING
CHOKE

MECHANISM
Choke

plate
and

linkage

I

Check
choke

valve
and
mecha

nism
for
free

operation
and
clean
or

replace
if

necessary
A

binding
can

result
from

petroleum
gum
formation

on
choke
shaft
or
from

damage

2
Sefore

starting
engine
fully
de

press
accelerator

pedal
to
ensure
that

choke
valve
closes

properly

3

Push
choke
valve
with
a

finger

and
check
for

binding

4
Check
to
be
sure
that
bi
metal

cover
index
mark
is

set
at
the
center

of

choke

housing
index

mark
as

shown

below

Note
Do

not
set
bi

metal
cover
index

mark
at

any
position

except
the

center
of
choke

housing
index

mark

tfljlL
L

i

05

1
Hi
metal
cover

2
Choke

housing
ind
x
marks

3
Hi
metal
cover
index
mark

ET034

Fig
ET
17

Bi
metal
Setting

ET
9
CHECKING
FUEL

SHUT
OFF
SYSTEM

FU
models

Precautions

a
Before

checking
make
sure

engine

is

warmed

up
and
choke

valve
is

fully
open

b
On
air
conditioner

equipped
mod

els

turn
off
air

conditioner
switch

in

steps
I

through
S

Idle

engine

2

Disconnect
anti

dieseling
solenoid

valve

connector
and
make

sure
that

engine
stops
If
not

replace
anti

dieseling
solenoid
valve

assembly

Fig
ET
18
Checking
Anti

dieseling

Solenoid

for
Function

FU

models

3

Connect
anti
dieseling
solenoid

valve

connector

4

Restart

engine

S

Increase

engine
speed
slowly

under
no
load
and
make

sure

engine

speed
is

within
the

specified
range

when
throttle
valve

switch
is

operated

Operation
of
throttle

valve
switch

is

judged
by
hearing
Click
sound

caused

by
microswitch

inside
throttle

valve

switch
Then
decrease

engine

speed
slowly
and

make
sure

engine

speed
is
within
the

specified
range

when
throttle

valve
switch
is

operated

If

not
adjust
throttle
valve
switch

6
In
air

conditioner

equipped
mod

els

proceed
as
follows

1
Check
F
1

C
D

rpm
and

correct

if

necessary

2
With
air

conditioner
in
ON

F
l
C
D
is

actuated
increase

engine

speed

slowly
then
decrease
it
And

make

sure
throttle
valve

operates

click

sound
is
heard

or

continuity

turns
to

OFF
when

engine
speed

decrease
to

idling

If

not

adjust
throttle
valve
switch

Fig
ET
19

AdjlUting
Throttle
V
ve

Switch

FU
models

If
throttle

valve
switch

g1f1not
be

adjusted
to

specification

replace
Engine
Tune

up

Note

If
it
is
difrlCUlt
to

judge
open

tion
of
throttle
valve

switch

by

hearing
Click
sound
caused

by

microswitch
check

as
follows

1

DiscollI
ecl

throttle
va1ve

switch

ronnector

and
connect
circuit

tester
to
throttle
va1ve
switch

2

Run

engine
under

no
load

Increase

engine
speed
slowly
and
make
sure

it
is

within
the

specified
range
when

throttle
valve
switch
is
turned

on

Then
decrease

engine
speed
slowly

and
make
sure
it
is

within
the

specified
range
when
throttle
va1ve

switch
is

turned
off

If
not

adjust
throttle
valve
switch

3
Make

sure

continuity
of
throttle

vaIve
switch
turns

to
OFF
in
the

operation
desaihed

in

step
6

Engine
operation
Engine
speed
when

throttle
valve

switch

operates
Throttle

valve
switch

continuity

When

engine
speed

increases
1

150
i200

rpm

1

000
1
200

rpm
When

engine
speed

decreases

REPLACING

FUEL

FILTER

I

Check
for
a

contaminated
filter

and

water

deposit

0

9

ET011

Fig
ET
20
Fuel
Filter

All

engines
use
a

replaceable
car

tridge
type
fuel
filter
as
an

assembly

2

Replace
fuel
filter
in
accordance

with
maintenance

schedule
OFF

ON

ON

OFF

CHECKING

FUEL

LINES

Hoses

piping

connections
etc

Check
fuel
lines
for

loose
connec

tions
cracks

and
deterioration
Re

tighten
loose

connections
and

replace

any
damaged
or

deformed

parts

REPLACING
AIR

CLEANER
FILTER

Viscous

paper
type
air

cleaner
filter

does

not

require
any
cleaning
opera

tion
until

it
is

replaced
periodically

Sushing
or

blasting
operation
will

cause

clogging
and

result
in

enrich

ment
of
carburetor

mixture
and

should
never
be

conducted

Replace
air

cleaner
filter
in

accord

ance
with
maintenance

schedule

ET
10
CHECKING

AUTOMATIC

TEMPERATURE

CONTROl
AiR

CLEANER

I
Check

that
vacuum
hoses

Intake

manifold
to
3

way
connector
3

way

connector
to

temperature
sensor

3

way
connector
to
idle

compensator

temperature
sensor
to
vacuum
motor

are

securely
connected
in

C9rrect

posi

tion

2

Check
each
hose
for

cracks
or

distortion

3
Check
A
T
C

system
for
function

by
proceeding
as
follows

ConfIrm
that

engine
is
cold
before

starting
test

With

engine
stopp
d

distonnect

fresh
air

duct

Place
a

mirror
at

the
end
of
air

c1eaner
inlet

pipe
as

shown
and
check

to

see
if
air

control

valve
is
in

correct

pOsition

2J

v
7

EF210

Fig
ET
21

Inspecting
Valve
Position

Air

control

va
ve
is
in

correct

posi

tion

if
its

cold
air
inlet
is

open
and
hot

air

inlet
is

closed

4

Start

engine
and

keep
idling

Immediately
after

engine
starting

check
air
control

valve
for
correCt

position
as
described
above
In

this

case
correct

position
of
air

control

valve
is

the
reverse
of

step
3
under

hood
air
inlet
is

closed
and
hot
air

inlet

is

open

5

Check
that
air
control

valve

gradually
opens
to
cold
air
inlet

side
as

engine
warms

up
When
environmental

temperature
around

temperature

sensor
is

low

spend
more
time
for

engine

warning
up
operation
of

facili

tate
smooth

operation
of
air

control

valve

If
the

above

test
reveals

any
prob

lem

in
the

operation
of
air

control

valve

carry
out
the

further

inspection

described
in

Section
EF

TEMPERATURE
SENSOR

Removal

I

Using
pliers
flatten

clip
con

necting
vacuum

hose
to

sensor
vacuum

tube

1

Pipe

2
Catch

3
Fixed
with

adhesive

4
Hose

5
Tab

6

Clip

7
Gasket

EC019

Fig
EF
7

Removing
Seruor

2
Disconnect
hose
from

sensor

3
Take
off

clip
from
sensor
vacuum

tube
and
dismount
sensor

body
from

air
cleaner

Note

The

gasket
between

sensor
and

air

cleaner
is
bonded
to

the
air

cleaner

side
and

should
not

be

removed

Installation

Mount
sensor
on
the

specified

position

2

Insert

clip
into

vacuum
tube
of

sensor
After

installing
each
vacuum

hose

secure
hose
with
the

clip

Note
Be

sure
to
install
vacUl
11n

hose

correctly
Correct

position
is
R
H

side
to

Ntisan

mark
at
the

top

face
of
sensor
for
intake
manifold

L

H
side
for

Deuum
motor

VACUUM

MOTOR

1

Remove

screws

securing
vacuum

motor

to
air
cleaner

2

Disconnect

valve
shaft

attached

to

vacuum
motor

diaphragm
from
air

control
valve

and

remove

vacuum

motor

assembly
from
air

cleaner

3
To
install

reverse
the

removal

procedures
Engine
Fuel

Fig
EF

8
Removing
Vacuum
Motor

INSPECTION

AIR

CLEANER
FILTER

Viscous

paper

type
air

cleaner
filter

does

o
ot

rt

quire
any
cleaning
opera

tion

until
it

is

replaced
periodically

Brushing
or

blasting
operation
will

cause

clogging
and
result

in
enrich

ment

of
carburetor
mixture

and

should
never
be

conducted
For
reo

placement
interval
of
air

cleaner
filter

refer
to

Maintenance

Schedule

AUTOMATIC

TEMPERATURE

CONTROL
SYSTEM

Engine
failures

resulting
from
a

malfunctioning
A
T
C

system
are

manifest

during
cold
weather

opera

tion
Such
failures

include

Engine
stall
or
hesitation

Increase
in
fuel

consumption

Lack
of

power

If
these

phenomena
should

occur

check

A
T
e

system
as

described
in

the

following
before

carrying
out

inspection
of

carburetor

I
Check
that

vacuum
hoses
are

se

l

urely
connected
in
correct

position

2

Check
each
hose

for
cracks
or

distortion

3

Check
A
T

C

system
for

proper

function
as

follo
ys
Confirm
that

engine
is

cold
before

starting
test

With

engine
topped
disconnect

fresh
air

duct
if
so

equipped

Place
a
mirror
at
the
end

of
air

cleaner
inlet

pipe
as
shown
and

check

to
see
if
air
control
valve

is
in
correct

position

EF
4
Fig
EF
9

Inspecting
Valve
Po

man

Air
control
valve
is

in
correct

posi

tion
if
its
cold
air
inlet

is

open
and

hot

air
inlet
is

closed

4
Start

engine
and

keep
idling

Immediately
after

engine

starting

check
air
control

valve
for

correct

position
as
described
above
In

this

case
correct

position
of
air
control

valve
is

the

reverse
of

step
3

under

hood
air
inlet
is
closed

and
hot
air

inlet
is

open

S

Check
that
air
control
valve

grad

ually
opens
to

cold
air

inlet
side

as

engine
warms

up
When

environmental

temperature
around

temperature
sen

sor
is
low

spend
more
time

for

engine

warming
up
operation
to
facilitate

smooth

operation
of
air
control

valve

If
the
above

test
reveals

any
prob

lem
in
the

opera
ion
of
air
control

valve

carry
out
the

following
test

VACUUM
MOTOR

I
With

engine
stopped
confirm

that

cold
air
inlet
is

open
and

hot
air

inlet
is

c1
Sed

If
not

check
air
control
valve
link

age
for

proper
operation

2

DiscoJln
ct
ac
um

motor
inlet

vacuum
hose

and
connect

another

hose
to
the

inlet
to

apply
vacuum
to

vacuum
motor

Vacuum
can

be

appli
d

by
breathing
in

tile
hos
e
end

as

shown
Then

confirm
that

the
air

control
valve

moves

3
With
hot
air
inlet
in

open
posi

tion
as

described
in

step
2

above

pinch
vacuum
hose
with

fingers
and

cut
off
air
from

vacuum
hose
In

this

condition

check
that
air
control

valve

maintains
the

condition
described
in

step
2

for
more
than

30
seconds

and

that
hot

air
inlet

is

open
If

diaphragm

spring
actuates

the
air
control
valve

by

5

The

pressure

gauge
indicates

static
fuel

pressure
in
the
line

The

gauge
reading
should
be
within
the

specified
value

Fuel

pump
pressure

0
21
to
0
27

kg
em2

3
0
to
3
8

pli
I

Note
If
the

fuel
in
the
carburetor

float
chamber
has

run
out
and

engine
has

stopped
remove

clip
and

pour
fuel
into

carburetor
Fasten

clip
securely
and

repeat
static

pres

sure
test

If

pressure
is
not
within
the

specifi

ed
limit
remove

pump
as
an

assembly

CAPACITY
TEST

The

capacity
test
is

conducted

only

when
static

pressure
is
within
the

specification
To

conduct
this

test

proceed
as
follows

1
Disconnect

pressure
gauge
from

T
connector
and
in
its
vacant

place

install

a
suitable

container

as
a
fuel

sump

2

Start

engine
and
run
at

1
000

pm

3

Pump
should
deliver
the

specified

amouni

of
fuel

If

little
or
no
fuel
flows
from

open

end
of

pipe
it
is

an
indication

that

fuel
line

is

clogged
or

pump
is

mal

functioning

Fuel

pump
capacity

450

cc
27
46

eu
inl
min

at
1
000

rpm

REMOVAL
AND

INSTALLATION

Note
When

disconnecting
fuel

lines

use
a

container
to
receive

fuel

remaining
in
fuel
hoses

I
Disconnect

inlet
and

outlet
fuel

hoses
from
fuel

pump

2
Remove

fuel

pump

3
To

install
reverse
the
order
of

removal
Engine
Fuel

DISASSEMBLY

@@

@@

@

@@

1

Remove
screws
and
detach

upper

and
lower
bodies

2

Remove
screws
and
take
off

cap

and

cap
gasket
from

upper
body

3

Remove
inlet

and
outlet

connee

tors

4
Remove
valve
retainer
screws
and

take

off
valve

retainer

S
To

remove
diaphragm

press

down
its
center

against
spring
force

With

diaphragm
pressed
down
ilt

it

until
end
of

pull
rod
touches
inner

wall
of

body
Then
release

diaphragm

to
unhook

push
rod

Note
Be

careful
not
to

damage
dia

phragm
or
oil

seal

INSPECTION

Check
all

components
for
cracks

EF
7
I

Packing

2
Valve
a5scm

bly

3
Retainer

4
Screw

5

Diaphragm
assembly

6

Diaphragm
spring

7
Retainer

8

Diaphragm
assembly

9

Complete
body
lower

10
Screw

11
Washer

spring

12
Fuel

pump
cap

13

Cap
gasket

14
Connector
inlet

15
Connector
outlet

16
Rocker

arm

spring

17
Nut

18

Washer

spring

19
Washer

pJain

20
Gasket

21

Spacer

22
Rocker

pin

23

Spacer

24
Rocker

arm

EC134

Fig
EF
16

Fuel

Pump

wear
or

any
abnormalities
and

replace

with
new

parts
if

necessary

ASSEMBLY

I
To
assemble

reverse
the
order
of

disassembly
Closely
observe
the

following
instructions

Use
new

gaskets

Lubricate
rocker
arm

rocker
arm

link

and
rocker
arm

pin
before

installation

2
After

assembly
test
the
function

as
follows

a

Position
fuel

pump
assembly
about

I

meter
3
3
ft

above
fuel

level
of

fuel
strainer
and

connect
a

pipe

from
strainer
to

fuel

pump

b

Operate
rocker
arm

by
hand
If
fuel

is

drawn

up
soon
after
rocker

arm
is

released
fuel

pump
is

functioning

properly

CHOKEUNLOADER

I
Close
choke
valve

completely

2

Hold
choke

valve

by
stretching
a

rubber

band
between
choke
shaft
lever

and

stationary
part
of

carllUretor

3
Pull

throttle
lever
until
it

com

pletely
opens

4
Under
this
condition

adjust
clear

ance
e
See
illustration
between

choke
valve
and
carburetor

body
by

bending
unloader

tongue
See

Fig

EF
37

Clearance
C

All

modelS
ex

pt
F
U
model

2
36

mm
0
0929

in

FU
model

2
17

mm
0
0854
in

Note
Make

sure
that
throttle
valve

opensfuDy
when
carburetor
is

mounted

on
car

If
throttle
valve
fails
to

open
fully

unloader
becomes

inoperative
re

suiting
in

poor
acceleration
after

engine
is
started

AUTOMATIC

CHOKE

HEATE
IRCUIT

Checking
heater

circuit
with

function

connector

CAUTION

00

not
attach

test
leads
of
8
circuit

tester
to
those
other
than

designated

I

With

engine
not

running
check

for

continuity
between
A
and

B

If

continuity
exists
heater
is

fune

tioning
properly

If

continuity
does
not
exist

check

for
discon
nected

connector
or

open

P
T
C

heater
circuit

2

With

engine
running
at

idle
check

for

presence
of

voltage
across
A

and
B

If
voltmeter

reading
is
12
volts

heater
circuit
is

functioning
proper

ly

If
voltmeter

reading
is
zero

check

for
disconnected
connector

open

circuit
or

faulty
automatic

choke

relay

3

Replace
faulty

parts
Engine
Fuel

c

i

CD

1
Rubber
band

2
Unloa
er

tongue

3
Choke
vaJve

f
rC
EC150

Fig
EF

37

Adjusting
Choke
Unloader

SJ

v

1

Ignition
switch

2
Automatic
choke

relay

Engine
stop
ON

Engine
start
OFF
3
Automatic
choke
heater

4
Function
test
connector

5
L
terminal
of
alternator

EF

16
Fig
EF

38
EF433A

Checking
Automatic
Choke
Heater
Circuit

with
Function
Teat
Connector

Engine
Fuel

Upon
completion
of

adjustment

make
sure
that

link

system
opera
tes

smoothly
It
is

necessary
to
remove
Carburetor

from

engine
in

adjusting
this
accelera

tor

pump
stroke
limiter

1

Remove
carburetor

from

engine

2

Insert
a
l
l

to
I
S
mm
0

043
to

0
059

in
feeler

gauge
a

piece
of

round

stock
of

proper
thickness
is

best

betwee
l
primary
ca

buretor

throat
and
throtile
valve
ACCELERATOR
PUMP

STROKE

LIMITER

In

rmal
service

operation
this

limiter
should

not
be
removed
or

bent

In
J

0

ID

@

l

1IJl

J
J
00

I
f

oj

G
1
3
IO
2

mm
0
051
IO
004
in

Fig
EF
44
AdjlUting
Acce
rator

Pump
Stroke
Limiter
1
Primary
carburetor
throat

2
Throttle
valve

3
Lever

4

Limiter
5
Piston

6

Pin

7
Feeler

gauge

E
F048A

3

With
throttle
valve
held

open

properly
by
feeler

gauge
check

that

lever

barely
contacts

pin
If
lever
and

pin
are
not
in

contact

bend
limiter
until

proper
contact
is

made

OZ
00
A

fID

1

S

@

4
1

Full

travel
of

lever

f

EF049A
A
1
Lever

2
Correct

contact
area

3
Limiter

4
Pin

5

Pistgn
6
Correct
cont
ct
area

7
Lever

8

Limiter

9
Pin

10
Piston

Fig
EF
45
Stroke
Limiter

DASH

POT

I

Idling
speed
of

engine
and
mix

ture
must

be
well

tuned

up
and

engine

sufficiently
warm

2
Turn
throttle
valve

by
hand
and
read

engine
speed
when
dash

pot
just

toucnes

stopper
lever

3

Adjust
position
of
dash

pot
by

tuming
nut
until

engine
speed
is

in
the

specified

range

California

models
Non

Califomia

models

Automatic

transmission
1

900

to
2

100
1
900
to

2
100

Manual
transmission

1
900

tp
2

100
2
300

to
2

500

FU
model

1

900
to
2

100

EF

t8
1
Lock
nut

2
Dash

pot

E

F730

F
ig
EF
4

Ll
dj

ting
h

P
ot

4

Tighten
lock
nuts

5

Make
sure
that

engine
speed

drops
smoothly
from
2

000

to
1
000

rpm
in

about
three

seconds

ACCELERATING
PUMP

I

Visually
inspect

accelerating

pump
cover

for

any

sign
of
fuel

leaks

2

If
fuel

leaks
are
found

check

gasket
and

replace
if

necessary

3

Turn
throttle

valve

by
hand

make
sure
fuel
is

injected

through

injector
nozzle

Note
To

check
or

fuel

injection

peep
into
nozzle
rom

upper
side

while

directing
flashlight
beam
to

ward

primary
barrel

ANTI
DIESELING

SOLENOID

VALVI

Start
the

engine
and

keep
at

idling

speed
Disconnect
the

lead
w

e
for
the

anti
dieseling

solenoid
at
the

connec

tor

If
the

engine
does

not

stop
when

the
lead

wire
is

disconnected
the

solenoid
is

stuck
Reconnect
the
lead

wire
and

start
the

engine
Then
turn

off
the

ignition
switch

If
the

engine
does
not

stop
when

the

ignition
switch
is
turned
off

this

indicates
that
the

striking
solenoid

valve
is

stuck
or

short

circuited

If
the

harness
i
in

good
condition

replace
the
solenoid
valve
as
a
unit

1

Servo

diaphragm
4

Stopper

2
Bracket
5
Link

3
Lock
nut
6
Carburetor

EF732

Fig
EF
56

Adjusting
Seroo

Diaphragm

Adjwting
Screw

FUEL

SHUT
OFF

SYSTEM

Precautions

a

Before

checking
make
sure

engine

is

warmed

up
and
choke
wive
is

fully
open

b

On
air
conditioner

equipped
mod

els
turn
off

air
conditioner
switch

in

steps
I

through
12

c

Keep
clutch

pedal
held
down
with

your
foot
while

depressing
accele

g

f
J

1
Engine
Fuel

rator

pedllI
when
shift
leVer
ISm

any
position
other
than

neutral

Otherwise
car
will

surge
forward

abruptly

Note
Do

not
attach
test
leads
of
a

circuit
tester
to
terminals
other

than
those

designated

Run

engine
at

idling

speed

2
Disconnect

anti
dieseling
solenoid

valve
connector
and
make

sure
that

engine

stops
If

not

replace
anti

dieseling
solenoid
valve

assembly

EF856

Fig
EF

57

Checking
Function

of

Anti
die

eling
Solenoid
Valve

31
A

t

CID

@

V

II
l

To

distributor

T
n

l1on
coon
o

1

Ignition
switch

2
Fuse

3

Anti
dieseling
solenoid

4

Neu
tral

detecting
switch
5
Throttle
valve
swltch

6

Engine
revolution
switch

7

Transistor

ignition
unit

8
Function
test
connector

Fig
EF
58

Checking
Fuel
Shut
off

System
Operation
with
Function

Test
Connector
EF436A

EF
22
3
Conilect
anti

ieselingsolenoid

valve
connector

4
Restart

engine

5
Connect

circuit
tester

as
shown
in

Fig
EF
S8

6

Depress
clutch

pedal
and

shift

gears
into
5th

position

7

Depressing
clutch

pedal
increase

engine
speed
to

about
3

000

rpm
by

depressing
accelerator

pedal
Then

quickly
close
throttle
wIve

by
re

leasing
accelerator

pedal

8
At
this
time
check

for

presence

of

voltage
across
A

and
B

I
If

voltmeter

reading
i
ero
dur

ing
acceleration
and
is
12V

during

deceleration
fuel
shut
off

system
is

functioning

2
If

voltmeter

reading
is

zero
or

l2V
in

both

engine
operations
fuel

shut
off

system
is

malfunctioning

In

any
case
continue
with
the

following
items

9

Shift
lever
to
neutral

then
in

crease

engine
speed
and

quickly
close

throttle
valve

If

voltmeter

reading
is

zero
in
both

engine
operations
and
results
of
test

i
tern

8
are
correct
neutral

detecting

switch
is

functioning
properly
If
not

check
neutral

detecting
switch
harness

and
connections

Replace
if

necessary

10
Turn

off

ignition
switch

II

Disconnect
throttle
valve
switch

connector
and
connect

circuit
tester

to
throttle
valve
switch
connector

12

Run

engine
under

no
load
In

crease

engine

speed
slowly
and
make

sure

engine
speed
is
within
the

speci

fied

range
when
throttle
valve
switch
is

turned
on

Then

decrease

engine
speed
slowly

and
make
sure

engine
speed
is
within

the

specified
range
when
throttle
valve

switch
is
turned

off

If
not

adjust
throttle
valve

switch

13
In
air

conditioner

equipped

models

proceed
as
follows

I
Check
F
l
C
D

rpm
and
correct

if

necessary

2
With

air
conditioner
in
ON

F
l
C
D
is
actuated
increase

engine

speed
slowly
then
decrease
it
And

make

sure
throttle
valve

operates

Click
sOund
is
heard
or

continuity

turns
to
OFF
when

engine
speed

decreases
to

idling

Remove

snap
ring
CD
and
lock
bolt

@
and
the

following

parts
can
be

detached
from
heat

control
valve

shaft

Key

ID

Counterweight

@

Thermostat

spring

@

Coil

spring

@

Note
As

previously
descnbed

heat

control

valve

j
is

welded

to
valve

shaft

@
at

exhaust
manifold

and

cannot
be
disassembled

To
install

reverse
the
removal

procedure

INSPECTION

1
With

engine
stopped
visually

check
the

quick
heat
manifold

system

for
the

following
items

I
Check
heat
control
valve
for

malfunction
due

to
break
of

key
that

locates

counterweight
to
valve
shaft

2
Rotate
heat
control
valve
shaft

with

fingers
and
check
for

binding

between
shaft
and

bushing
in

closing

and

opening
operation
of

heat
control

valve
If

any
binding
is
felt
in

rotating

operation
move
valve
shaft
in
the

rotation

direction
several
times
If
this

operation
does
not
correct

binding

condition
it
is

due
to
seizure
between

shaft
and

bushing
and
exhaust
mani

fold
should

be

replaced
as
an

assem

bly
Emission
Control

System

Counterweight

Heat
control
valve

Stopper
pin

EC249

Fig
EC
IO

Checking
Heat
Control

Valve
Movement

2
Run

engine
and

visually
check

counterweight
to
see
if
it

operates

properly

I
When

engine
speed
is
increased

discharge

pressure
of

exhaust

gases

causes

counterweight
to

move

down

ward

clockwise

2
For

some
time

after

starting

engine
in

cold
weather

counterweight

turns
counterclockwise
until
it

comes

into

contact
with

stopper
pin
installed

to

exhaust
manifold

EC
9
Counterweight
gradually
moves

down

clockwise
as

engine
warms

up

and
ambient

temperature
goes
higher

around
exhaust
manifold

If
it
does
not
move
at
all
check

and

replace
thermostat

spring

AIR

INJECTION

SYSTEM
A

I
S

DESCRIPTION

The
Air

Injection
System
A
I
S

is

adopted
on
U
S
A

models

except
FU

models

and

injects
compressed
air

secondary
air

coming
from
the
air

pump
into

the
exhaust

port
of
the

cylinder
head
to
reduce

hydrocarbons

He
and

carbon

monoxide
CO
in

exhaust

gas
through
recombustion

There

are
two

types
of
Air

Injection

System

Fresh
outside
air
is
drawn

by
the
air

pump
through
the

air

pump
air

cleaner

Compressed
air
is

injected
into

the

exhaust

manifold

through
the

check
valve

The
A
B

valve

supplies
air
from
the

carburetor
air
cleaner
to
the

intake

manifold

so
as

to

prevent
after

fire

during
deceleration

The
amount

of

injected
air
is
con

trolled

by
C
A

C
valve

California

models
or
air

relief
valve

Non

California
models

CONSTRUCTION

NON

REDUCTION
GEAR
TYPE

6

00

1

Magnetic
switch
assembly

2
Dust
cover

Adjusting
washer

3
Torsion

spring

4

Shift
lever

5
Dust
cover

6
Thrust
washer

7
E

ring

8
Rear
cover

metal

9

Through
bolt

10
Rear
cover

11
Brush
holder

12
Brush
U

Ul
@

13
Brush

spring

14
Brush

IS
Yoke

16
Field
coil

17
Armature

18
Center
bracket

19
Pinion

assembly

20
Dus

t
cover

21
Pinion

stopper

22

Stopper
clip

23
Gear
case

24

Gear
case
metal

REDUCTION
GEAR
TYPE

1

Magnetic
switch

assembly

2
Dust
cover

AdjUsting
was
r

3

Torsion

spring

4

Shift

lever

5

Through
bolt

6
Rear
cover

7

O

ring

8
Yoke

9
Field
coil

10
Brush

11
Armature

12

Ceo
tel

bearing

13
Brush

spring

14
Brush
holder
6

8
Engine
Electrical

Systeni

3

@

1

E
E660

Fig
EE
6
Non
Reduction
Gear

Type
Starting
Motor

4

4

15
Dust
cover

16
Center

housing

17
Reduction

gear

18
Pinion

gear

19

Packing

20
Gear
case
EE614

Fig
EE
7
Reduction
Gear

Type
Starting
Motor

EE
5