1979 DATSUN 210 transmission

CAUTION

Do
not
allow
water
to

get
inside
the

thermal
vacuum
valve

EC161A

Fig
EC
77
Ch

c

jng
Th
rmal
Vacuum

Valve

3

port
type

Thermal

vacuum

valve

2

port
type

Dismount
thermal

vacuum
valve

from

engine

Note

Before

dismounting
drain
en

gine
c
oolant
from

engine

Apply
vacuum
to
thermal

vacuum

valve
and

check
to
be
sure

that
ther

SPARK
TIMING

CONTflOL

SYSTE
VI

DESCRIPTION

The

spark

timing
control

system
is

designed
to
control

the
distributor

vacuum
advance

under

varying

driving

conditions
so

as
to
reduce
He
and

NOx
emissions
Emission
Control

System

mal

vacuum
valve

opens
or
closes
in

response
to

engine
coolant

tempera

ture

as

specified

Thermal

vacuum
valve

should

open

at

a

temperature
specified
below

com

pleting
the
vacuum

passage

Thermal

vacuum
valve

opening

temperature

40
to

63
c
104
to
1450

Fl

CAUTION

00

not
allow
water
to

get
inside
the

thermal1
acuum
valve

Jl
i

g

J

eC
42

Fig
EC
78
Ch

ckjng
Thermal
Vacuum

Valve

M
T
model

When

the
transmission

is
shifted

into
the

4th
or
5th

gear
the
electric

current
flows
into

the
vacuum

switch

ing
valve
The
vacuum

switching
valve

is

then
actuated
and

close
the
vacuum

passage
As

a

res
li
the

distributor

fully
advances

its

ignition

liming

When
the
transmission
is

shifted

into

any
gear
other

than
4th
and
5th

current
flow
is

interrupted
The

vacu

umswitclting
valve
is

then
deactuated

and
the

vacuum
leak

passage
is

E026
BoP

T
valve

1

DiSCOIUlect
two
vacuum
hoses

on

BY
T
valve

2

Plug
one
of
two

port
of
BY
T

valve

Apply
a

pressure
above
SO

nimH20

1
97

inHP
to
B
P
T
valve
and

orally
suck
back
other

port
of
B
P
T

valve

as
shown
below

to
check
for

leakage
If

a
leak
is
noted

replace

valve

Apply
pressure
above

SO
mmH10
2
inH10

EC311A

Fig
EC
79

Checking
B
P
T
Valve

opened
This
weakens
the
vacuum

signaUransmitted
from
the
carburetor

As
a
result
the

ignition
timing
of
the

distributor
is

slightly
advanced

On
U
s
A
models

except
for

the

FU
model
a
thermal

vacuum
valve

3

port
type
is
added
on
the

vacuum

line
between
the
carburetor
and
dis

tributor

The
vacuum

signal
is
controlled

by

this
thermal

vacuum
valve

in
accord

ance
with
variation

in

engine
cooling

water

temperature

Emission
Control

System

M
T
models
For
U
S
A
models
except
FU
model

Distributor

r

To

B
P
T

valve

HIGH
vacuum

valve

OrifiCO

i
jarburetor

l

Vacuum

switching
valve

Ignition
switch

I

To
air

cleaner

Fuse

8
Top
switch

4th
5th

Others
Battery

8
ON

OFF

Canada
and
FU
models

OM

1orifico

F
JCMburetor

To
air
cleaner

1
V
cuum

switching
valve

To

intake
manifold
FU
models
only

Fuse

G1j
Ignition
switch

Battery

7

EJ
Top
switch

4th
5th
ON

Others
OFF

EC

27
Water

temperature

OC
OF

Below

5
to

18
41
to
64

Between

I
5

to
18
and

50
t063

41
to

64
and

I
122

to
145

I

I
Above
50
to
63

122
to
145
Transmission

ear

position

Top

4th
and

5111

Other
than

Top

Top

4th
and
5th

Other
than

Top

Top

4th

and
5th

Other
than

Top

Non
California

models

only
Thermal

Spark

timing
vacuwn

valve

Fully

advanced

I
Closed

Partially

advanced

Partially

I
advanced

Partially

I
Open

ad

ced

Fully

I
advanced

I
Closed

Partially

advanced

EC162A

Transmission
gear
Vacuwn

Ignition
timing
switching

position

valve

Top
4th
and
5th

Fully
advanced
Closed

Other
than

Top
Partially
advanced

Open

EC371A

Fig
EC

BO

Spork
Timing
Control

Sy
tem
MIT

Emission

Control

System

AfT
models

Spark
timing
control

systems
on

Arc
models

are
divided
into
3

types

On
California

models
a

top
detect

ing
switch
i3

added
on
the
line

pressure

circuit
beside

the
transmission
case
The
vacuum

switching
v
iJve

and

thermal
vacuum
valve

3

port

type

control

the

spark
advance

by
the

engine
cooling
temperature
and

gear

position

On

non
California
models

excpt

AfT
models
Califomle
models

Distributor

To
B
P

T

valve

1
Orifice

i1J

1
ICh

OJ

L
J
To
air

cleaner

Fu

EJ
Top
5witch

D3
R
ON

Others
4
OFF

Battery

Non
californla
models

except
Canada

To
air
cleaner

l

o

o
0

Ig

o

g
00

00
00

r
Vacuum

delay
valve

Thermal

vacuum

valve

Water

temperature

OC
OF
Thennal

vacuum

valve

Oosed
Ignition
timing

Below
5
10
18

41
io
64

Between

5
to

IB
and

50
to
63

411064
and
122
10
145

Above
50
to
63

122
to
145
Fully
advanced

PartiaDy
advanced

Open

Fully
advanced
Oosed

EC2a
Water

temperature

OC
oF

Bdow

51018
41
to
64

Between

5
to
18

and
50
10
63

411064
and

12210145

Above
50
to

63

122
to

145

Distributor

Carburetor

J

l
Canada
the
thermal

vaCUUDl

Vl
lve

3

port
type
and
vacuum
delay
valve

control
the

spark
advance

On

Canada
models
the
vacuum

delay
valve
is
installed

midway
on
the

vacuum

passage
from
the

carburetor

to

the
distributor

Transmission

gear

position
Thermal

vacuum

va1ve
Ignition
timing

R
and

D

3
FuBy

advanced

Other
than

Rnand

D
3
Oosed

Partially

advanced

R

a
gd

D
3

Other
than

R
and

0

3
Partially

advanced
Open

R
aud

D

3
Fully

advanced

Other
than

R
and

m
3
Oosed

Partially

advanced

Canada
models

Vacuum

delay
valve
Distributor

Carburetor

J

l

EC163A

Fig
EC
81

Spark

Timing
Control

Sy
tem

Af1

J

Vacuumswltching
valve

The
vacuum

switching
valve

changes
the

vacuum

passage
by
the

electrical
signa

The
solenoid
installed
in
the
valve

moves
the
needle

valve
and
controls

vacuum
signal
in

order
to

change
the

vacuum
advance

I
c

III

J

IL
jll
J

EC164A

Fig
EC
82
Vacuum

Switching
Valve

Thermal
vacuum
valve

3

port
type

U
S
A
modele

except

FU
model

The
thermal
vacuum
valve
detects

engine
cooling
water

temperature
and

controls
the
vacuum
signal
for
distrib

utor
vacuum
advance
mechanism

This
3

port
type
thermal
vacuum

valve
is

a
2

stage
action

type

That
is

when
the
water

temperature
is
too

low

or

high
the
acuum
signal
is
transmit

ted
to
the
distributor

ffi2
To
air

cleaner

From
B
PT

valve

From
distributor

EC156A

Fig
EC
83
Thermal
Vacuum
Valve

3

port
type

Top
detecting
switch

For
M
T
models

The

top
detecting
switch
for
M
T

models
is
located

on
the
side
face
of

the
transmission

gear
box

A

plunger
of
the
switch
detects
the

position
of
the

striking
rod
and
Emission
Control

System

changes
the

continuity
between

two

lead
wires

EC165A

Fig
EC
84

Top
Detecting
Switch

Top
detecting
switch

For
Celifornla
AfT
model

The

top
detecting
switch
for

Arr

models
is

installed
as
a

plug
for
t
e

governor
feed
line

pressure
take
out

port
for
service

This
switch
detects
the
line

pressure

for
the
band

servo
release
side
and

front
clutch
and

changes
the
continui

ty
between
lead
wires
to
the

switch

body

EC166A

Fig
EC
85

Top
Detecting
Switch

AfT
model

Vacuum

delay
valve

The
vacuum

delay
valve
prevents
a

rapid
vacuum

change
in
the
distributor

vacuum
advance
line
This
valve
is

designed
for

one

way
operation
and

consists
of
a
one

way
umbrella
valve

and
a

sintered
steel
fluidic
restrictor

B

P
T
valve
side

J

l

1

Sintered
metric
disc

2
One

way
unbreUa
valve

EC860

Fig
EC
86
Vacuum

Delay
Value

EC

29
In
line
orifice

Some
orifices
are
installed
in
the

midway
at

the
vacuum
line
The
size

of
the

orifice
is

important
to
control

vacuum
advance

Therefore

pay
attention

not
to
lose

them

and
install
a

proper
part
when

replacing

Orifice

EC167A

Fig
EC
87
In
line

Orifice

REMOVAL
AND

INSTALLATION

f
Vacuum

switching
valve

The

vacuum

switching
valve
is

located
on
the

rear
end
of
the

intake

manifold

I
Disconnect

a

pair
of

lead
wires

from
valve
and

two
rubber
tubes

2
Loosen
two

screws

securing
valve

to
intake
manifold

Vacuum

switching

valve
can
then
be
taken
out

3
Installation
is
in
the
reverse

s

quence
of

removal

EC16BA

Fig
EC
88

Removing
Vacuum

Switching
Valve

Top
detecting
switch

For
M
T
models

The

top
detecting
switch
is

located

on
the

side
face
of

the
transmission

gear
box

I
Disconnect

a

pair
of
lead
wires

2
Unscrew
the
switch

body
itself

The

switch
can
then
be
taken

out

3

Installation
is
in
the
reverse
se

quence
of
removal

dl
Tightening
torque

Top
cietectingswitch

2
0
to
3
0

kll
m

14
to
22

fHbl

@

EC892

Fig
EC
89

Remouing
Top

Detecting

Switch

Top
detecting
switch

For

AfT
models

The

top
detecting
switch
is

installed

on
the
side
face
of
the

gear
box

I

Disconnect
a
lead
wire

for

top

switch

2

Loosen
switch
itself

Switch
can
then
be
taken
out

Note

When
the

switch
is

remo
ed

automatic

transmission
fluid

flows

out

Prepare
some

rugs
to

prevent
the

fluid
rom

flowing
out

EC169A

Fig
EC
90

Remouing
Top

Detecting

Switch

An
models

3

Insta
tion

is
in

the
reverse
se

quence
of

removal
Emission
Control

System

dl
r

ingtorq

Top
detecting
switch

2
0
to
3
0

kll
m

14

to
22
ft

bl

Thermal
vacuum
valve

3

port
type

The

thermal
vacuum
valve
is
instal

led

on
the
rear
end
of

the

engine

cylinder
head

I

Drain

engine
coolant
about

one

liter

lUllS
qt
Ulmp
qt

2

Remove
manifold

nut

securing

heat
shi
eld

plate

r

l

EC170A

Fig
EC
91

Remouing
Hoot
Shield

Pwte

3
Disconnect
3
vacuum
hoses
and

unscrew
valve

itself
Valve
can
then
be

taken
out

4
Install

thermal

vacuum
valve
in

the

reverse

sequence
of

removal
At

this
time

the
valve
should
be

tighten

ed
to

a
tilt

angle
of
300

Note
Be
sure
to

apply
oealer
to

threads
o
the
valve

prior
to
instal

ling
new

valve
t
J
T1g11taning
torqUe

Thermal

cuum
waive

Less
than

2
2

kll
m
16
ft

bl

Manifold
nut

1
5

to
2

0kg
m

11
to
14
ft

bl

From
distributor

From
B
P
T

valve

From
air
cleaner

ECl71A

Fig
EC

92

mtalling
Thermal
Vacuum

Value
3

port
type

Vacl
ul11

delay
valVe

The
vacuum

delay
Valve
is

installed

on
the

midway
o
the
vacuum
tube

between

the
carburetor
and
distributor

vacuum
advance
mechanism

In

installing
the
valve
make
sure

that
the
brown
face

sid
is
connected

to
the
carburetor

side

Carburetor
sid

C
r

i

J

EG
30
Distributor

side

One
way

umbreDa
valve

Sintered
metal
disc

EC277

Fig
EC
93
In

tolling
Vacuum

Deloy
Value

REMOVAL

AND

INSTALLATION

I

Jack

up
the

car

Note

Apply
parking
brake
and

place
wheel

chocks

2
Remove

screws

securing
lower

shelter
of

catalytic
converter

Loosen

flange
bolt

connecting

catalytic
converter
to

front
and

rear

exhaust
tube

Catalytic
converter

assembly
can

then
be
taken
out

3

Installation
i
in
the

reverse
se

quence
of
removal

CAUTION

a
Be

careful
not
to

damage
catalytic

co
when

handliilg

b
Never
wet

catalyzer
with
water
oil

etc

t
J

Tightening
torque

Catalyti
converter
bolts

2
6
to
3
4

kg
m

19
to
25
ft
lb
Emission
Control

System

EC075A

EC076A

Fig
EC
103

Removing
Catalytic

Converter

INSPECTION

PrelimInary
In
pectlon

Vi

ually
check
condition
of
all

component

parts
including
hose

tubes
and
wires

replace
if

necessary

Refer
to
Air

Injection

System
for

inspection

EC
34
Catalytic
converter

Whether

catalytic
converter
is

nor

mal
or
not
can
e

checked

by
ob

serving
variation
in
CO

percentage

The
checking

procedure
is

as
follows

Apply
parking
brake
Shift

gears

into

Neutral
for
manual
transmis

sion

and
N
or

P
for

automatic

transmission

position

I

Adjust
engine
idling

speed
and

CO

percentage
Refer
to

Adjusting

Carburetor
Idle
RPM
and

Mixture

Ratio
for

adjustment

2
Race

engine
1
500

to
2
000

rpm

two
or

three
times

under
no
load
and

make
sure

that

specified
CO

percent

age
obtained

3
Remove

cap
and
connect

air
hose

to
air

check
valve

If

idling
speed
increases

readjust

it
to

specified
speed
with
throttle

adjusting
screw

4

Warm

up
engine
for
about
four

minutes

at
2
000

pm
under
no
load

S

Measure

Ci
percentage
at

idling

speed
After

stepAhas
been

complet

ed
wait
for

one
minute
before

making

CO

percentage
measurement

6
If
CO

percentage
measured
in

step
5
is

less
than
0
3
the

catalytic

converter

is
normaL

7

If
CO

percentage
measured
in

step
5
is

over
0
3
recheck
AJ
S
and

1

replace
air
check
valVe

The
perform

inspection
steps
4

and
S

8

If
CO

percentage
is

still
over
0
3

in

step
7

catalyt
iC

converter
i

mal

functioning
Replace
catalytic
con

verter

REMOVAL
AND

INSTALLATION

Disconnect

battery
ground
cable

Disconnect
harness

connector
and

battery
cable

at

magnetic
switch

2
Remove

bolts

securing
starting

motor
to
transmission

case
Pull

start

iog
motor

forward
and

remove
it

3
Inst
1I

starting
motor
in

reverse

order
of

removal

DISASSEMBLY

NON
REDUCTION
GEAR

TYPE

I
Disconnect

connecting
plate
from

M

terminal
of

magnetic
switch
Re

move
two

screws

securing
magnetic

switch
and
remove

magnetic
switch

assembly

2
Remove

dust
cover
E

ring
and

thrust
washer
s

EE311
@@

O

Fig
EE

8
Removing
DUll
Cover

E

ring
and
ThrUJJt

Washer

3
Remove
two
screws

securing

brush
holder

assembly

EE318

Fig
EE

9
Removing
Bru
h
Hold

Setacrews
Engine
Electrical

ystem

4
Remove
two
ihrough
bolts
and

rear
cover

5
Remove

brushes
from
their

hold

er

by
moving
each
brush

spring
away

from
brush
with
a
hook

Remove

brush
holder

6
Remove

yoke
assembly
and
with

draw

armature
assembly
and
shift

lever

7
Remove

pinion
stopper
located
at

the
end
of
armature
shaft
To
remove

stopper
first
move

stopper
toward

pinion
and
after

removing
stopper
clip

remove

stopper
with

overruniling

clutch
assembly
from
armature
shaft

EE271

Fig
EE

lg
Rf

moving
Pinion

Stopper

REDUCTION
GEAR
TYPE

1

Disconnect

connecting
plate
from

M
terminal
of

magnetic
switch
Re

move
two
screws

securing
magnetic

switch
and
remove

magnetic
switch

assembly

Note

Torsion

spring
can
be

pulled
off

magnetic
switch

2
Remove

through
baIts
and
rea

cover

Note

Rear
cover
can
be

pried
off
with

a
f1at
blade
screwdriver
inserted
be

tween
it

and

yoke
Be

careful
not

to
damage

packing
while

removing

reaf
cover

3
Remove

yoke
armature
and

brush
holder
as

an
assembly
from

center

housing

CAUTION

When

removing
be
careful
not
to

knock
brush
commutator
or
coil

against
any
adjacent
part

EE
6
o

7

EE615

Fig
EE
ll

Removing
Yo
and

Armature

4
To

remove
brush
holders

proceed

as
follows

I
Remove

brush
on

positive
side

from
its
holder

Note
Brush
on

positive
side
differs
in

that
it
is
isolated
from
brush
holder

and
its

lead
wire
is
connected
to

field
coil

2

Carefully
lifting
brush
on

nega

tive
side

away
from
commutator
sur

face
remove
it

from
brush
holder

EE616

Fig
EE
12

Removing
Br
h

5
Remove
bolts

securing
center

housing
to

gear
case
and
detach
center

housing

6
Remove

pinion

gear

CLEANING
AND

INSPECTION

Clean

all
disassembled

parts
but
do

not
use

grease
dissolving
solvents
for

cleaning
overrunning
clutch
armature

assembly
magnetic
switch

assembly

and
field
coils
since
such
a

solvent

would
dissolve

grease
packed
in
clutch

mechanism
and
would

damage
coils
or

other
insulators

Check
them
for
excessive

damage

or
wear
and

replace
if

necessary

Engine
Electrical

System

DISTRIBUTOR

D4K8
18

D4K8
15

I
D4K8

16

Type
D4K8
19

I
D4K8

13
D4K8

02

Applied
model
FU
model
California

models
Canada
Non
California
models

Transmission

MfT

Firing
order

Rotating
direction

IGNITION
COIL

Type

Applied
model

Primary
voltage

Spark
gap

SPARK
PLUG

Standard

Hot

Type

Cold

Applied
model

Size
screw
dia
x

reach

mm
in
AfT
MfT
MfT
AfT
MfT
AfT

I
3
4
2

Counterclockwise

cn
30

STC
30

All

v
12

mm
in
More
than
7
0
28

BP5ES
II

BP5EQ
13

BPR5ES

L46PW
1I
L45PM
13

BP4ES
1I

BP4EQ
13

BPR4ES

L47PW
1I

L47PM
13

BP6ES
1I

BP6EQ
13

BP7ES
1I

BP7EQ
13

BPR6ES

L44PW
1I

L45PM
13

BPR7ES

L45PW
1I
L44PM
13

U
S
A
FU
model
Canada

14
x
19
0
55
x
0
75

INSPECTION
AND
ADJUSTMENT

BATTERY

Type

Full

charging

specific
gravity
N50Z
NS70

1

26
1
28

EE
31