1979 DATSUN 210 ECU

TM798

Fig
MT

45
In

talling
Snap
Ring

Main
drive

Bear

I
Press
main

drive

gear
bearing
onto

shaft
of
main
drive

gear
using
Trans

mission

Drift
ST23800000

Make
sure

that

snap
ring
groove
00

shaft

clears

bearing

L
i

ST23800000

TM714

Fig
MT
46

Imtalling
Main
Drive

Bearing

2
Place
main
drive

bearing

spacer

on

main
drive

bearing
and
secure
main

drive

bearing
with

a
new
thicker

soap

ring
that
will
eliminate
end

play

Note
Mlike
sure

soap
ring
fits
in

groove

1
Main

d
ive

gear

2

Snap
ring

3

Spacer

4
Main
drive

bearing

TM715

Fig
MT
47

Irutalling

Snap
Ring
Manual

Transmission

Available

nap
rings

No

Thickness
mm
in

No
Thickness

mm
in

2
20
to
2
25

1
34
to
1
40
0
0866
to
0
0886

0
0528

to
0

0551
2
25
to
2
30

2

0
0886
to
0
0906

140rol46

2

0

0551
to
0

0575

2
30
to
2
35

3

146
to

1
52
0

0906
to
0

0925

3

0

0575
to
0

0598

2
35
to
2
40

4

1
52
to
1
58
0
0925
to
0
0945

4

0
0598
to
0

0622

2
40
to

2
45

5

1
58

to
1
64
0
0945
to
0
0965

5

0
0622

to
0
0646

2
45
to
2
50

6

0
0965
to
0
0984

1
64
to
1

70

6

0

0646
to

0
0669

2
50
to
2
55

7

1
70
to
I
76
0

0984
to
0

1004

7

0
0669

to
0

0693

2

55
to
2

60

8

0
1004100
1024

Counter

Beer
Note
Be
sure
to

measure
at
two
or

more

positions
on
the

end
urface

of
outer
race

1

Press
counter

gear
rear

bearing

onto

counter

gear
usingCountershaft

Bearing
Press
Stand
KV32
100200

KV32100100

r
I

J

I

1

T

II

I
TM117

Fig
MT
49

Mecuuring
Counter
Gear

End

Phly

TM716

Fig
MT
48

Installing
Counter

Gear

Rear

Bearing
3
Remove
counter

gear
assembly

from
the
transmission
case

4

Press
counter

reverse

gear
onto

counter

gear
assembly
using
Counter

shaft

Bearing
Press
Stand

KV32
100200

2

Install
a
counter

gear
thrust
wash

er
and

unter

gear
with
counter

rear

bearing
into
transmission

case
and

select
counter

gear
thrust
washer
of

proper
thickness

using
Counter
Gear

Height
Gauge
KV32
100
100

Select
washer

from
those
shown
in

the

following
table
so
that
end

play
of

counter

gear
is

specified
value
KV32100200

Standard
end

play

0

10
to
0
20
mm

0
0039
to
0
0079
in
TM719

Fig
MT
50

Installing
Counter

Revene

Gear

MT12

5
Fit

snap
ring
to

groove
in
rear
end

of

counter

gear
by
using
snap
ring

pliers

Note
Maire
sure

snap
ring
fits
in

groove

TM697

Fig
MT
5I

Imtalling
Snap
Ring

Assembly
to

adapter
plate

t

Install
baulk

ring
on
main
drive

gear
and
combine
with
mainshaft
to

complete
the
mainshaft

assembly

Note
Be
sure

to
install

pilot
bearing

in

place
when

combining
with

mainshaft

2

Combine
mainshaft

assembly

with

counter

gear
assembly
and

place

them
into

adapter
plate
simulta

neously

3
Pull
mainshaft

assembly
into

adapter
plate
using
Mainshaft
Puller

KV32
100400

When

installing
main

shaft

assembly

carefully
hold

gears
by

hand

Install
counter

gear
assembly

together
with
mainshaft

assembly
by

applying
light
blows
with

a
soft
faced

hammer

Make
sure
that

snap
ring
groove
on

mainshaft
rear

bearing
clears

adapter

plate

CAUTION

a
Take

care
not
to

drop
gears
on

floor
I

b
Take
care
not
to

damage
bearings

TM810

Fig
MT
52
1

Installing
Mainshaft

Assembly
Manual
Transmission

4

Fit

snap
ring
to

groove
in
main

shaft
rear

bearing
with

snap
ring
pliers

TM796

Fig
MT
53

Fitting
Mainshaft
Rear

Bearing
Snap
Ring

Note
Make

sure

snap
ring
fils
in

groove

5

Install

bearing
retainer
on

adapter

plate

Torque
screws
and
stake
each
screw

at
two

points
with
a

punch

fj
Tightening
torque

Mainshaft

bearing
retainer

saew

0
7

to
1
0

kg
m

15
1
to
7
2
ft
Ibl

TM811

Fig
MT
54

Staking
B

aring
Retain
r

Screw

6
Install
mainshaft
reverse

gear
and

thrust
washer
on
the
rear
end
of

mainshaft
To
secure
with
new

snap

ring
first
hold
it

temporarily
with

snap
ring
pliers
and
then

tap
it

lightly

with

Bearing
Drift
ST22350000

Note

a
Install
lhrust
washer

so
that

its

concave
side
is

on
mainshaet

reverse

gear

b
Make
sure

snap
ring
fits
in

groove

MT
13
J
r

Froni

Gear
side

TM100A

Fig
MT

55
Imtalling
R
Vf
e
Gear

Shift
forks
and
fork
rods

I
Insert

1st
2nd
fork

rod
into

adapter
plate
and

assemble
1st

2nd

fork

2
With
1st

2nd
fork
rod
set
at

Neutral
insert
interlock

plunger
into

adapter

plate

3
Insert

3rd
4th
fork
rod

into

adapter
plate
and
assemble
3rd
4th

fork

4
With

3rd
4th
fork
rod

set
at

Neutral
insert
interlock

plunger
into

adapter
plate

S
Insert

reverse
fork
rod
into

adapt

er

plate

Nole

a
Be
sure

to
install
interlock

plunger

when

installing
any
adjacent
fork

rods
to

adapter
plate

Properly
align
the

groove
in

assem

bled
fork
rod
with
interlock

plunger

b
Be

sure
to

align
3rd
4th
shift
fork

wilh
the

groove
in
their

coupling

sleeve
before

installing

c
Also

align
1st
2nd
shift
fork
with

their

coupling
sleeve

prop
dy
be

fore

inslalling

d
Shift
forks
for
3rd
4th
an
1st

2nd

are
one
and
the
same

parts

Make

sure
that
the

long
end
of
shift

fork
for
1st
2nd
is

placed
on

the

counter

gear
side
and
the

long
end

for
3rd
4th
is

on
the

opposite

side

5
Install
check
balls
and
check
ball

springs

Apply
locking
sealer
to
check
ball

plugs
and
install
in

place

Align
notches
in

reverse
3rd
4th

and
1st

2nd
fork

rods
with
check

balls

Note

a
In
the

standard

position
the

upper

surface
of
the

ping
is

nush
with

thaI
of

adapter
plate

b
CheCk

balfpIug
for
i
st
2nd
fork

rod
is

longer
than
those
for
reverse

forkrod
and
3rd
4th
fork
rod
Manual
Transmission

TRANS
SSION

ASSEMBLY

Transmission
case

assembly

Remove

adapter
plale
with

gear

assembly
from

Adapter
Setting
Plate

KV32100300

2

Clean

mating
surfaces
of

adapter

plate
and

transmission

case

Apply
sealant
to

mating
surfaces
of

adapter
plate
3
nd
transmission

case

3

Install
counter

gear
thrust

washer

selected

previously

Note

a

Apply
grease
to

stiding
sorface
of

thrust
washer

b
When

installing
thrust

washer
note

the
front
and
rear

directions

Fig
MT
56

Installing
Check
Ball
0

Plugs

6
1nstall
rev

rse
idler

gear

together

with
reverse
shift

fork

TM791

Fig
MT

57

Installting
Re
ldler

Getg
and

Shift
Fork

7

Install
each

fork
rod
on
shift
fork

with
new

retainif
g

pin
U
a

ham

mer

toseCUfe

pin
in

place

Note
To
insure

that
interlock

plunger

is
installed

properly
slide

3rd
4th

fork

rod
and

operate
the

other
fork

rod
Make
sure
that

the

gear

except

lrd
or
4th

gear
does

not
mesh

8

Apply

g
ar
oil
o

all

sliding
sur

faces
and
check

to
see
that
shift
rods

operate
correctly
and

gears
are
en

gaged
smoothly
Fig
MT

58
Installing
Thrust

Washer

Front
Oil

groove
side
Rear

Thrust
side

TM727

Fig
MT
59
Counter

Gear
Thru
t

Washt
r

4

Place
wooden

plate
of
more
than

15

mm
0
59
in
thick

under
transmis

sion

case
to
make
it

level

Slide
transmission

case
onto

adapter
plate
by
lightly

tapping
with
a

soft

hammer
until

case
bears

against

adapter
plate
and
be
sure
to
line

up

dowel

pin

Carefully
install
main

drive

bearing

and
counter

gear
front

needle

bearing

Make
certain

that
rnainshaft

rotates

freely

MT14
1

Wooden

block

TM813

Fig
MT

60

Installing
Transmiuion

Cale

5

Fit
main
drive

bearing
snap

ring

to

groove
in
main

drive

bearing
with

snap
ring
pliers

Note

Make
sure

snap
ring
fits
in

groove

Fig
MT

61
Fitting
Main

Dri

Bearing
Snap
Ring

Rear

extension

assembly

Clean

mating
surfaces
of

adapter

p
Iat
aIld
rear
e

tens
i91

Apply
sealant
to

mating
surfaces
of

adapter
plate
and
rear

extension

2

With
fork
rods
in

their
neutral

positions
turn

striking
rod

clockwise

and

gradually
slide
rear

extension
onto

adapter
plate
making
sure
that

striking
lever

engages
with

fork
rod

brackets

correctly

3
Install

through
bolts
with
washer

and

tighten

b
Tightening

torque

Rear
extension

installation

bolt

1
6

to
2
2

kg
m

12
to
16
ft
lb

4

Install

stopper
pin
bolt
into
rear

extension

and

tighten

l
J
Tightening
torque

Stopper
pin
bolt

0
5
to
0
8

kg
m

3
6
to
5
8
ft
lb

Be

sure
to

apply
sealant
before

installation

Stopper

pin
bolt
Sealant

TM814

Fig
MT
62

Installing
Stopper
Pin

Bolt

5

Apply
grease
to

plunger
and
in

stall
it
in
rear
extension

6

Install
reverse

check

spring
and

return

spring

Apply
locking
sealer
to
return

spring
plug
and
install
it
in

place

l
J
Tightening
torque

Return

spring

plug

0
5
to

1
0

kg
m

3
6

to
7
2
ft
lb

TM815
Plunger

Reverse
check

spring

Return

spring

Return

spring
plug

Fig
MT
63

Installing
Return

Spring

Front
cover

assembly

1

Select
front
cover

adjusting
shim

as
follows

I

Using
vernier

caliper
depth
gauge
Manual

Transmission

measure

depth
A

from
front
end
of

transmission

case
to
main
drive

bearing

outer
race
with
front

cover
adjusting

No
A

mm
in

I

2

3

4

5

6

7
shim
in

place

2

Select
a

shim
of
thickness
A

measured

Adjusting
shim

mm
in

6
05
to
6
09
0

2382
to
0
2398

6
10
to
6
14

0
2402
to
0
2417

6
15
to
6

19
0
2421
to

0
2437

6
20
to
6
24

0
2441
to

0
2457

6
25
to
6
29

0
2461
to

0
2476

6
30
to
6
34

0
2480
to

0
2496

6
35
to
6
39
0

2500
to
0
2516
0
50
0

0197

0

55
0
0217

0

60
0
0236

0
65

0
0256

0

70
0
0276

0
75

0
0295

0

80
0
0315

TM816

Fig
MT
64
Meaauring
Front
Cover

Adjusting
Shim

CD

1

Transmission
case

2
Main
drive

gear

3

Adjusting
shim

4

Bearing

TM817

Fig
MT
65

Selecting
Front
Co
r

Adju
ting
Shim

2

Clean

mating
surfaces
of
front

cover
and
transmission

case

3

Install
front
cover
to

transmission

case
with

the

adjusting
shim
and
0

ring
in

place

l
J
Tightening
torque

Front

cover
installation
bolt

1
0
to
1
6

kg
m

7
to
12
ft
Ib

Outer

parts
assembly

Install

speedometer
pinion
assem

MT15
bly
and

install

securing
bolt
and

tighten

l
J

Tightening
torque

Speedometer
Ieeve

locking

plate

bolt

0
3
to
0
5

kg
m

2
2
to
3
6
ft
Ib

2

Install
reverse

lamp
switch

and

tighten
At
the

same
time
install

top

detecting
switch
if
so

equipped

Be
sure
to

apply
locking
sealer

before
installation

l
J
Tightening
torque

Revene

lamp
switch
and

top
detecting
switch

2
0
to
3
5

kg
m

14
to
25
ft
Ib

3

Apply
a

light
coat
of
multi

purpose
grease
to
withdrawal
lever

release
bearing
and

bearing
sleeve
in

stall
them

on
transmission
case

After

connecting
them
with

holder

spring
install
dust
cover
to
transmis

sian

case

4

Install
control
lever

temporarily

and

move
shift
control
lever

through

all

gears
to
make

sure
that

gears

operate
smoothly

5

Install
drain

plug
coated
with

sealant
in

place

l
J
Tightening
torque

Drain

plug

2
5
to
4
0

kg
m

18
to
29
ft
Ibl

6
Make

sure
that
main

drive
shaft

rotates

smoothly
in

Neutral

Main

drive

gear
rotating
torque

Les
than
1

8

kg
cm
1

6
in

Ibl

Manual
Transmission

S

R

o

o

D
l

@

@

l

@

l

25
Control
lever
boot

26
Control

pin
bushing

27
Control
arm

pin

28
Control
lever

29
Control
lever
knob
1

2nd
3rd
fork
rod
9
4th

5th
shift
fork
17

Shift
arm
bracket

2

Retaining

pin
10
2nd
3rd
shift
fork
18
Arm
bracket
O

ring

3

Checking
ball

plug
11
Ist
reverse
shift

fork
19
Arm
bracket

plain
washer

4
Check
ball

spring
12

Striking
rod
20
O

ring

5
Check
ball
13
Striking
lever
21

S

lriking
guide

6
ht
reverse
fork
rod
14
Lock

pin
22

Striking
guide
oil
seal

7
Interlock

plunger
15
Striking
pin
23

Expansion
plug

8

4th
5th
fork
rod
16
Shift
arm
24
Control
lever

bushing
Tightening
torque
kg
m

fHb

@
0

9
to
1
2
6
5

to
8
7

@
8
2
to
to
O
59

to
72

TM229A

Fig
MT
68
FS5W60L
Transmission

Shift
Control

Components

REMOVAL
4

Jack

up
the

car
and

supporl
its

weight
on

safety
slands
Use
a

hy

draul

c
hoist
or

open

pit
if
available

Make

sure
that

safety
is

insured

S
Disconnect
front

exhaust
tube

and

remove
bolt

securing
exhaust

mounting
bracket
from
exhaust
front

tube
side

6
Disconnect
wires

from
reverse

back

up
lamp
switch

7

Disconnect

speedometer
cable

from
rear
extension
At
the
same
time

remove

top
detecting
switch
if

so

equipped

8
Remove

propeller
shaft

Refer
to

Removal
Section
PD
To

dismount
transmission

from
the

car

proceed
as
follows

Disconnect

battery

ground
cable

2
Remove
console
box
and

detach

rubber
boots
if
so

equipped

3
Place

transmission
control
lever

in

neutral

position
and

remove
it

CJi
J

TM781
Note

Plug
up
the

opening
in
the
rear

extension
to

prevent
oil
from

flow

ing
out

Fig
MT
69

Removing
Control
Lever

MT
17
9
Remove

clutch

operating

cylinder

from
transmission
case

10

Support
engine
by
placing
a

jack

under
oil

pan
with

a
wooden

block

used
between

oil

pan
and

jack

CAUTION

Do
not

place
the

jack
under
the
oil

pan
drain

plug

II

Support
transmission
with
a

transmission

jack

12
Loosen
rear

engine
mount
se

curing
bolts

CD

temporarily
and
re

move
crossmember

mounting
bolts

CV

o

Fig
MT
70
R

movi7l
lB
ar

Ensi

Mounting
Croum
mber
Manual
Transmission

3
Remove

starting
motor

14
Remove
bolts

securing
transmis

sJon
to

engine
and

gusset

Then

support
the

engine
and

trans

mission
with

jacks
and
slide
transmis

sion
rearward

away
from

engine
and

remove
from
the
car

CAUTION

Take
cate
in

dismounting
transmission

not
to
strike

any
adjacenl
parts
and

main
drive

gear

INSTALLATION

Install
the
transmission
in
the

re

verse
order
of
removal

paying
atten

tion

to
the

following
points

MT18
t
Before

installing
Clean

mating

surfaces
of

engine
rear

plate
and
trans

mission
case

2
Before

installing
lightly
apply

grease
to

spline

parts
of

clutch
disc

and
main
drive

gear
And

also

apply

grease
to

moving
surfaces
of
control

lever
and

striking
rod

3
Remove
filler

plug
and

fill

trans

mission
with
recommended

gear
oil
to

the

level
of
the

plug
hole

Oil

capacity

t
2
liters

2

US

pt
2

Imp
ptl

4

Apply
sealant
to
thread
of
filler

plug
and
install
filler

plug
totransmis

sian

case

l
l
Tightening
torque

Filler

plug

2
5
to
4
0

kg
m

t8

to
29
ft
bl

DISASSEMBLY

TRANSMISSION
CASE

DISASSEMBLY

1
Prior
to

disassembling
transmis

sion

thoroughly
wipe
off
dirt
and

grease
from
it

2

Drain
oil

thoroughly

3
Remove

dust
cover
from
trans

mission
case

Remove
release

bearing
and

with

drawallever

4
Remove
reverse

lamp
switch

and

top
detecting
switch

if
so

equipped

5
Remove

speedometer
pinion
as

sembly

6
Remove

nut
and
stopper

pin
bolt

from
rear

end
of
rear
extension

Fig
MT
71

Removing
Nut
and

Stopper
Pin
Bolt

7
Remove

return

spring
plug
return

spring
and

plunger
from
rear
exten

sion

@

@
Q

@

j

TM784

Fig
MT
72
Removing
Return

Spring
Plug

8
Remove

front
cover
Detach
0

ring
and

front
cover

adjusting
shim

1l
l

TM785

Fig
MT
73

Removing
Front
Cover

D

Ring
and

Adju
ting
Shim
Manual
Transmission

9
Remove
main
drive

bearing
snap

ring
with

snap
ring
pliers

Fig
MT
74

Removing
Main
Drive

Bearing
Snap
Ring

10
Remove
rear
extension

securing

bolts
and
turn

striking
rod
counter

clockwise

Drive
out
rear

extension
backward

using
a

standard

puller

TM548

Fig
MT
75

Removing
R
ar

Extension

11

Separate
transmission
case
from

adapter
plate
by
evenly

tapping

around
it

with
a
soft
hammer

CAUTION

00
not

pry
transmission
case
or
rear

extension
from

adapter
plate
with

screwdriver

TM262A

Fig
MT
76
Removing
Tran

miuion

Ca
e

MT19
12

Set

up
Adapter
Setting
Plate

KV32100300
on

adapter
plate

Place
the
above

assembly
in

a
vise

TM230A

Fig
MT
77
A

ttaching
Gear

Assembly
to

Special

Tool

13

Detach
counter

gear
thrust

washer

DISASSEMBLY
OF

GEAR
ASSEMBLY

Shift
forks

and
fork
rods

1

Drive
out

retaining
pins
from

each

fork
rod
with

Fork
Rod
Pin

Punch
ST23540000

TM231
A

Fig
MT
78

Driving
Out

Retaining

Pim

2

Remove
three
3

check
ball

plugs

TM232A

Fig
MT
79

Removing
Check
Ball

Plug

2
Install
needle

bearing
by
lightly

tapping
around
it

with
a

brass
drift

and
a
hammer

3
Install

reverse
idler

shaft
with

thrust
washer
in

adapter
plate
by

tapping
the
shaft
end
with

a
soft

hammer

TM243A

Fig
MT
I05
Installing
Re
Idler

Shaft

ASSEMBLY
OF
GEAR

ASSEMBLY

Clean
all

parts
in
solvent
and

dry

with

pressed
air

Synchronizer

1
2nd

3rd
41h
5th

speed

synchronizers

I
Place

synchro
hub
into

coupling

sleeve

2
Fit

shifIing
inserts
in
t1lree

grooves
in

synchronozer
hub

3
Install

spread
spring
to
inserts
so

that

insert
is

securely
attached
to
inner

side
of

coupling
sleeve

Install
Ihe
other

spread
spring
on

the

opposite
side
of

synchro
hub

Note

a
Be
careful
not
to
hook

front
and

rear

ends
of
the

spread
spring
to
the

same
insert

b
Be

sure
that

hub
and
sleeve

oper

ates

smoothly
and

correctly
by

hand

TM077

Fig
MT
I06

Enstalling
Spread

Spring
Manual
Transmission

TM131A

Fig
MT
I07

Installing
Spre
d

Spring
2

2
Ist

reverse

synchronizer

I
Position

shifting
insert

springs

and

shifting
inserts
in

three
3
slots
in

synchronizer
hub

2
Put

reverse

gear
on

synchronizer

hub

3
Install

shifting
insert
retainer
to

inserts
so
that
sert
is

securely
attach

ed
to
inner

side
of
reverse

gear

Mainshatt

I

Assemble
3rd

gear
needle

bearing

3rd

gear
baulk

ring
2nd
3rd

speed

synchronizer
assembly
2nd

gear
baulk

ring
2nd

gea
buihirig
needle

bearing

2nd

gea
and

thrust
washer
on
main

shaft
to

2

Press
mainshiift

bearing
onto

mainshaft
uSi

g
Mainshaft

Bearing

Drifl
ST22350000

L

ST22350000

TM711

Fig
MT
I08

Enstalling
Mainshaft

Bearing

Note
Assemble
2nd
3rd

speed

synchronizer

paying
attention
to

its

direction

MT
25
Front
hl
l
h2

2nd

gear
ide
3rd

gear
SIde

hi
h2

Fig
MT
109

Inslalling
2nd
3rd

Speed
Synchronizer

3
Position
5th

gear
needle
bearing

5th

gear
bawk

ring
and
4th

5th

synchronizer
assembly
on
the
front

side
of
mainshaft

4
Fit

a
new
suitable

snap
ring
in

place
so
that

there
exists
a
minimum

clearance
between
end
face
of

hub
and

ring

Note

Make
sure

snap
ring
fits
in

groove

Available

snap
rings

No

Thicknc
ss
mm

tin

2
1
55

to
1

60

0

0610
to
0
0630

1
60
to
1

65

0
0630
to
0

0650

1
65
to
1

70

0
0650
to
0
0669
3

TM798

Fig
MT
IlO

InslallingSnap
Ring

Main
drive

gear

1
Press

main
drive

gear
bearing
onto

shaft
of
main
drive

gear
using
Trans

mission
Drift
ST23800000

Make
sure
that

snap

ring
groove
on

shaft

clears

bearing