1969 DATSUN 610 oil

inter
r
0J

@
jll@

FIg
M
7

Over
unning
clutch

assembly
1

m
ILE

COMMUTATOR

0
5
to
0
8
mrtl

ROUND

O
0197
to
0
0315
nl

SEGMENT

MICA

CORRECr
INCORRECT

Fig
M
9

Undercutting
the
commutator
insulation

Fig
M
11

Testing
the
field
coils
for
continuity

5

y
SERIES
COIL

5

r
SHUNT
COIL

Fig
M
13

Testing
the
solenoid
witch

10
J

Fig
M
8

Checking
the
brush

pring
tension

Fig
M
lO

Checking
the
armature
shaft
for
run
out

J

I

I
J

I

L
j
J

j

Fig
M

12
Testing
the
field
coils
for

earthing

1

rl

wr

v
E
L
DIMENSION

131
7

to
32
3mm
1
248
to
1
272
in

I

Adjus
llUt

2
PluJlKeradjuster

F
8
M
14

Measuring
the

gap
between

pinion

and

pinion
stop

I

stopper
to

the
overrunning
clutch

side
and
removing
the

stopper
clip
Remove
the

stopper
and

overrunning
clutch
as

shown

inFig
M
7

Oean

the
dismantled

components
and
check
them
for

wear
or

damage

Cbeck
the
brushes
and
renew

them
if
worn
below
6
5mm

0
257
in
Fit
new
brushes
if
the
brush
contact
is
loose
Cbeck

the
brush
holders
and

spring
clips
and
make
sure

that

they
are

not
bent
or
distorted
The
brushes
should
move

freely
in

their

housings
and
can
be
eased
with
a
file
if

necessary
The
brush

spring
tension
should

be
approximately
0

8kg
1
76Ib

and

can
be
checked
with
a

spring
balance
as

shown
in
Fig
M
S

Armature

assembly

Make
sure
that
the
surface
of
the
commutator

is
not

rough
or

pitted
Oean
and

lightly
polish
with
a
No
500

emery

cloth
if

necessary
If
the
commutator
is

badly
worn
or

pitted

it
should
be
skimmed
in
a
lathe

only
a

light
cut
must

be
taken

to
remove

the
minimum
amount

of
metal
If
the
commutator

diameter
wear
limit
of
0
2mm
0
OS
in

is
exceeded
the

assembly
must
be

renewed

Undercut

the
mica
between
the
commutator

segments

when
the

depth
of
mica
from
the
surface
of
the

segment
is

less
than
0
2mm
0
08

in
The

depth
should
be
between

0
5
0
8mm
0
0197
0
0315
in
as
shown
in

Fig
M
9

The
armature
shaft
should
be
checked
for

straightness

by
mounting
between

the
centres
of
lathe
and

positioning

a
dial

gauge
as
shown
in

Fig
M
I
O
Renew

the
armature

if
the

bend
of
the
shaft
exceeds
0
08mm
0
0031
in

Field
coils

testing

Test
the
field
coils
for

continuity
by
connecting
a

circuit

tester
between
the

positive
terminal
of
the
field
coil
and
the

positive
terminal
of
the
brush
holder
as
shown
in

Fig
M

I
I
If

a

reading
is
not

obtained
the
field
circuit
or
coil
is

open

Cbnnect
the
tester
to
the

yoke
and
field
coil

positive

teoninal
as

shown
in

Fig
M
12
to

check
the
field
coils
for

earthing

Unsolder
the
connected

part
of
each
coil
and
check
the

circuit
for

earthing
in
a
similar
manner

Renew
the
field

coils

if

they
are

open
earthed
or
short
circuited

Outch
assembly

The

overrunning
clutch
must
be

replaced
if
it
is

slipping

or

dragging
Examine
the

pinion
and
sleeve

making
sure
that

the

sleeve
is
able
to
slide

freely

along
the
armature
shaft

spline

Inspect
the

pinion
teeth
for

signs
of

rubbing
and
check
the

fly

wheel

ring
gear
for

damage
or
wear

Bearings

Inspect
the
metal

bearing
bushes
for
wear
and
side

play

The
bushes
must

be
renewed
if
the
clearance

between
the

bearing

bush

and
armature
shaft

is
in
excess
of
0
02mm
0
008
in

New

bearing
bushes
must
be

pressed
in
so
that

they
are
flush

with
the
end
of
the
case
and
reamed
ou
t
to

give
a
clearance
of

0
03
0
10
mm
0
0012
0
0039
in

H
Solenoid

assembly

Inspect
the
solenoid
contact
surface
and

replace
if

showing

signs
of

wear
or

roughness
Replace
the

pinion
sleeve

spring
if

weakened

Check
the
series
coil

by
connecting
an

8
12

volt

supply

between
the
Sand
M
terminals
as
shown
in

Fig
M
13
The

series
coil
is
normal
if
the

plunger
operates

Test
the
shunt
coil

by
connecting
the
S
terminal
the
M

terminal
and
the
solenoid

body
as
shown
in
the
lower
illustration

of

Fig
M
13

Open
the
M
terminal
when
the

plunger
is
operated

the
shunt
coil
is

satisfactory
if
the

plunger
stays
in
the

operated

position

Measure
the

length
L
between

theylonger
adjusting
nut

and
solenoid
cover

Press
the

plunger
against
a

firm
surface
as

shown
in

Fig
M
14
and
check
that
the
dimension
is
within

the
figures

given
Turn
the

adjusting
nut
if

necessary
until
the

required
dimension
is
obtained

STARTER
MOTOR

Assembly
and
Installation

The
assembly
and
installation

procedures
are
a
reversal

of
the
removal
and

dismantling
operations
When

assembling

the
starter
smear

the
armature
shaft

spline
with

grease
and

lightly
oil
the

bearing
bushes
and

pinion

ALTERNATOR

The
alternator
is
driven

by
the
fan
belt
and
has
an
advant

age
over
a

dynamo
in
that
it

provides
current
at

low

engine

speeds
thereby
avoiding
battery
drain
Maintenance
is
not

normally
required
but
the
tension
of
the
fan
belt
should
be

checked
and

adjusted
if

necessary
as

described
in
the

section

COOLING
SYSTEM
Care
must
be
taken
not
to

overtighten

the
fan
belt
or

the
alternator

bearings
will
be
overloaded

The
alternator

output
can
be
checked
with
the
alternator

in

the
vehicle

by
carrying
out
the

following
test
Ensure
that
the

battery
is

fully
charged
Withdraw
the
connectors
from
the

alternator
F
and
N
terminals
and
connect
a

jumper
lead
between

the
F
and
A
terminals

Connect
a
voltmeter
to
the
E

and
A
alternator
terminals

with
the

negative
lead
to

terminal
E
and
the

positive
lead
to

the
terminal
A
as
shown
in

Fig
M
IS
Switch
the

headlamps

on
to
full
beam
and
start

the

engine
Increase
the

engine
speed

gradually
and
note

the

reading
on
the
voltmeter
when
the

engine
reaches
a

speed
of

approximately
lOaD

rpm
The

alternator
is

operating

satisfactorily
if
the
voltmeter
shows
a

reading
above
12
5
volts
If

the

reading
is
below
12
5
volts
the

alternator
is
defective
and
should
be
removed
for

inspection

ALTERNATOR
Removal

Disconnect
the

negative
lead
from

the

battery
and
the
two

lead
wires
and
connector
from
the
alternator

Slacken
the
alter

nator

mounting
bolts
and
take
off

the
fan
belt
Take
out

the

mounting
bolts
and
withdraw
the
alternator
from
the
vehicle

III

Pr
d
rp

r

1

J

Fig
M

20
Pulling
out
the
rear

bearing

Fig
M
23

Testing
the

stator
for
conduction

Fig
M
25

Inspecting
the

positive
diodes
inteN
Il1JIi

OJaIlir

J

Fig
M
lI

Testing
the
rotor
coils
for
conduction

Fig
M
ll

Testing
the
rotor
coils
for
earthing

Fig
M
24

Testing
the
stator
for

earthing

TERMINAL

OPLATE

Fig
M
26

Inspecting
the

negative
diodes

113

ALTERNATOR
Dismantling

Refening
to

Fig
M
16
remove

the

pulley
nut
and
take
off

the

pulley
rim
fan
and

spacer
Withdraw
the
brush
holder

retaining
screws
and
remove
the
brush
holder
cover
Withdraw

the
holder
and
brushes
as
shown
in
Fig
M
17

Slacken
and
remove
the
three

through
bolts
and

separate

the
diode

housing
from
the
drive
end
housing
by
tapping
the

front
bracket

lightly
with
a
wooden
mallet

Fig
M
18

Remove
the
screws
from
the

bearing
retainer
and

separate
the

rotor
from
the
front
cover

Fig
M
19

Remove
the
rear

bearing
from
the
rotor

assembly
with
the

aid
of
a

puller
as
shown
in

Fig
M
2D
Take
off
the
diode
cover

and
unsolder
the
three
stator
coil
lead
wires

from
the
diode

terminal

Remove
the

A
terminal
nut
and
diode
installation
nut
and

remove
the
diode

assembly
Do
not
force

the
diode

assembly

when

removing
or
it

may
be

damaged
Remove
the
stator
from

the
rear
cover

ALTERNATOR

Inspection

Use
an

ohmmeter
as

shown
in
Fig
M
21
to
test

the
rotor

field
coil

Apply
the
tester
between
the

slip
rings
and
check
that

the
resistance
is

approximately
4
4
ohms
at

normal
ambient

temperature
Check
the

conductivity
between

slip
ring
and
rotor

core
as
shown
in

Fig
M
22
if

conductivity
exists
the
field
coil

or

slip
ring
must
be

earthing
and
the
rotor

assembly
should
be

renewed

Cbeck
the
stator
to
ensure
that
there
is

conductivity

retween
the
individual
stator

coil
terminals
as
shown
in

Fig
M

23
If
there
is
no

conductivity
between
the
individual
terminals

the
stator
is
defective

Check
each
lead
wire

including
the
neutral
wire
as
shown

in

Fig
M
24
If
there
is

conductivity
between

any
wire
and
the

stator
COTe

the
stator
core

is

earthing
and
the
stator
must

be

replaced

Diodes

Three

positive
diodes
are
mounted
on
the
positive
plate

and
three

negative
diodes
are
mounted
on
the

negative
plate

The
diodes
allow

current
to
flow
in
one
direction

only
The

diodes
on
the

positive
plate
only
allow
current
to
flow
from

the
terminal
to
the

positive
plate
whilst
the
diodes
on
the

negative
plate
only
allow
current
to
flow
from
the

negative

plate
to
the
terminal
A
diode
which
allows
current
to
flow

in
ooth
directions
or
does
not

allow
current
to
flow
in
the

correct
direction
is
unserviceable
and
all
six
diodes
must
be

replaced
Use
a
tester
as
shown
in
Figs
M
25
and
M26
to
check

each
diode

Brushes

Check
the
movement
of
the
brushes
in
their
holders
The

brushes
should
move

freely
and
can
be
eased
in
necessary
by

carefully
ming
the
sides
Oean
the
brush
holders
before

replacing

the
brushes
Renew
the
brushes
if

they
are
worn
below
a
length

of
7mm
0
275
in
With
the
brush

projecting
approximately

2mm
0
08
in
from
the
holder
it
is
possible
to
measure
the

brush

spring
pressure
using
a

spring
balance
as
shown
in

Fig
M
27

The

pressure
of
a
new
brush
should
be
255
345

grammes

9
0
12
2
oz
the

pressure
will
however
decrease

by
approxi

mately
20

grammes
per
I
amm
0
039

in
of
wear

ALTERNATOR

Assembly
and
Installation

Asssembly
is
a
reversal
of
the

dismantling
prQcedure
noting

the

following
points
The
stator
coil
lead
wires
must
be
resoldered
to
the
diode

assembly
terminal
as

quickly
as

possible
or

the
diodes

may
be

damaged
When

installing
the
diode
A
tenninal
make
sure

that

the

insulating
bushing
and
tube
are

correctly
fitted

The

pulley
nut
should
he

tightened
to
a

torque
reading
of

350
400

kg
cm
301
344Ib
in
Mount
the

assembly
in
a

vice
as
shown
in

Fig
M
28
and
when
the

pulley
is

tightened

make
sure
that
the
deflection
of
the

pulley
groove
does
not

exceed
O
3mm
m
o
118

in

ilEA
D
LAMPS

Replacing

All
weather

type
sealed
beam

headlamp
units
are
fitted
to

the
vehicle
Each

lamp
is
of
the
double
fIlament

type
with
a

full
beam
filament
of
50W
and
a
dipped
beam
filament
of
40W

The

replacement
of
the
sealed
beam
unit
can

be
carried

out
as
follows

Remove
the

wiring
socket
from
the
back
of
the

headlamp

unit
On

Coupe
models
withdraw
the
screws

attaching
the

front

grille
to
the
radiator
core

support
On
all
other
models

remove

the
three

retaining
screws
and
remove
the

headlamp
rim

Withdraw
the
three

retaining
screws

securing
the

retaining

ring
3
in

Fig
M
29
and
remove

the
sealed
beam
unit

When

installing
a
new
sealed
beam
unit
make
sure
that
the

Top
mark
on
the
ring
is

uppennost
when
fitted

HORNS

The
circuit
for

the
horns
is
shown
in

Fig
M
30
The
horns

can
be
adusted
for
v01ume
and
tone
in

the

following
manner

Remove
the
connector

and
the

retaining
nut
in

the
centre

of
the
horn
withdraw
the
horn
from
the
vehicle
Connect
a

voltmeter
and
ammeter

into
circuit
as
shown
in

Fig
M
3I
Set

the
switch
to
ON
and
check
that
the
voltmeter
shows
a

reading
of
12
to
12
5
volts
The
sound
can
be

regulated
by

turning
the

adjusting
screw

Fig
M
32
A

reading
of

2
5

amps

should
be
obtained
for
the
flat

type
of
horns
or
5
0

amps
for

the

spiral
type
of
horns

Turning
the

adjusting
screw
clockwise
will
increase
the

current

turning
anti
clockwise
decreases
the
current

Install
the
horns
in
the
vehicle
and
check
that
the
correct

sound
can
still
be
obtained
when
the

higher
voltage
of
14
15

volts
is

generated
by
the
alternator
Turn
the

adjusting
slightly

if

necessary
then

tighten
the
locknut

INSTRUMENT
PANEL
Removal

The
instrument

panel
holds
the
various
meters

and

indicators
A
printed
circuit
board
is
located
at
the
rear
of
the

panel
and
the
connections
to
it
are

multiple
connectors
When

the

panel
is
remove

the
instruments
are

easily
withdrawn
for

inspection
and

servicing

Disconnect
the

battery
negative
terminal

2
Remove
the
windscreen

wiper
switch

lighting
switch
and

choke
control
knobs

by
pressing
them
in
and

turning

anticlockwise
Remove
the
escutcheon

3
Disconnect
the

cigarette
lighter
cable
at
the
rear
of
the

instrument

panel
and
turn

the

cigarette
lighter
outer
case

so
that
it
can
be
removed

115

N
Engme
SYMPTOMS
I

Trouble
Shooting
Lubrication
System

SYMPTOMS

bed
t
f
I
h
i
1m
0
p
q
r
I
I
II
bed
t
f
I
h
Ii
I
m
n

ENGINE
WILL
NOT
CRANK

ENGINE
CRANKS
SLOWLY

ENGINE
CRANkS
BUT
OOES
NOT
START

ENGINE
STARTS
BUT
RUNS
FOR
SHORT

PERIODS
aNL
Y

ENGINE
I
tISFIRES
AT
LOW
SPEED

ENGINE
MISFIRES
AT
HIGH
SPEED

ENGINE
MISFIRES
AT
ALL
SPEEDS

ENGINE
MISFIRES
ON
ACCELERATION

AND
FAILS
TO
REV

ROUGH
IDLE

RUNS
ROUGH
AT
HIGH
SPEED

lACK
OF
POWER

POOR
CCElERA
nON

LACK
OF
TOP
SPEED

EXCESSIVE
FUEL
CONSUMmON

EXCESSIVE
OIL
CONSUMmON

PINKING

COMPRESSION
LEAK
PROIABLE
CAUSE

Faull
In
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IYltem
Refer
to
the
ELECTRICAL

EQUIPMENT
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dilllflOlIll

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d
Mechanieal
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Flult
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ltem
Refer
to
the
IGNITION

SYSTEM
IeCtion
for
di
I

f
Flult
the
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Refer
to
the
FUEL
SYSTEM

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cylinder
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WW
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ENGINE
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PERIODS
ONLY

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ENGINE
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tank
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CLUTCH
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a
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I
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Ti
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h
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p
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q
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lI
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drio

TIghtenIng
Torques

LIB

engines
Three

speed
geabox
ENGINE

2
5
4
0

kgm
18
29
Ib
ft

0
3
0
4

kgm
8
13
IbJI

Ll
1
8

kgm
8
0
12
llbJt

1
6
2

5
kgm
12
18Ib
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I
I
1
8

kgm
8
0
12
llbJt

0
7
I
I

kgm
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1
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0

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7
0
12
0

kgm
51

87IbJI

0
8
1
0

kgm
5
8
7
2
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0
3
0
4

kgm
2
2
2
9Ib
ft

2
3

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14
22IbJI

J
9
2
2

kgm
14
16IbJI
Gearbox
to

engine

Dust
cover

Front
cover

Rear
extension

Bottom
cover

Reverse
idler
shaft

Detent
ball

plug

Mainshaft
nut

Mainshaft

bearing
retainer

Speedometer
pinion
sleeve

lock

plate

Reverse

lamp
switch

Control
lever
nut
Cylinder
head
bolts

1st

stage

2nd
stage

3rd

slage
4
0

kgm
28
9Ib
ft

6
0

kgm
43
4lb
ft

6
5
8
5

kgm
47
0
61
5

Ib
ft

Connecting
rod

big
end
nuts

Ll4
Ll8

engines

Ll6

engine

Flywheel
bolls

Main

bearing
cap
bolts

Camshaft

sprocket
bolt
4
5
5
5

kgm
33
40
Ib
fl

3
2
3
8

kgm
23
27
lb
ft

14
16

kgm
l01
106Ib
ft

4
5
5
5

kgm
33
40Ib
ft

12
16

kgm
86
8
116IbJt

0
6
0
9

kgm
4
3
6

5IbJt

I
I
1
5

kgm
8
0
10
8

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fl

2
3

kgm
14
5
21
7Ib
ft

5
6

kgm
36
43
Ib
ft

0
6
0
9

kgm
4
3
6
5
Ib

ft

12

16kgm
86
8
115
7

IbJt
LIB

engines
Four

speed
gearbox
Oil

sump
bolts

Oil

pump
bolts

Oil
drain

plug

Rocker

pivot
locknuts

Camshaft

locating
plate
bolts
2
5
4
0

kgm
18
29

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0
8
1
0

kgm
5
8
7
2Ib
ft

Ll
l

7kgm
8
12IbJt

Ll
I

7kgm
8
12Ib
ft

3
3
44

kgm
24
32IbJI

1
7
2
1

kgm
12
15

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2
3

kgm
14
22Ib
ft

0
5
0
7

kgm
3
6
5
IlbJI

0
8
I
I

kgm
5
8
8
0Ib
ft

0
8
Ll

kgm
5
8
8
01b
ft

0
8
1
0

kgm
5
8
7
2Ib
ft
Gearbox
to

engine

Dust
cover

Front
cover

Bottom
cover

Rear
extension

Detent
ball

plug

Reverse

lamp
switch

Lower
bracket
bolt

Shift
rod
nut

Cross
shaft
bracket
bolt

Gear

change
lever

mounting
bolt
Crankshaft

pulley
nut

Outch

mounting
bolts

L14
Ll6

Ll8
2
4
2

6kgm
174
18
8

Ib
ft

1
6
2
2

kgm
12
16Ib
fl

PROPELLER
SHAFf
AND
DIFFERENTIAL

GEARBOX

17

20kgm
l22
145IbJI

14
17

kgm
101
123Ib
ft

13
20

kgm
94
145Ib
fI
Drive
pinion
nuts
Saloon

Drive

pinion
nuts

Estate
car

Drive

pinion
nuts
Van
Ll4
and
L16

engines
Three

speed
Gearbox

Rear
extension
to
case

bolts
2
8
4
4

kgm
20
32lb
ft

Gearbox
10

engine
2
5
4
0

kgm
18
29Ib
fI

Bnttom
cover
L1
1
7

kgm
8
0
12
3
lb

ft

Ll
1
7

kgm
8
0
12
3
lb

fl

3
5
5
0

kgm
25
3
36
2

Ib
ft

1
8
2
1

kgm
13
0
15
2

Ib
ft

2
4

kgm
14
5
29
Ib
ft

0
7
L1

kgm
5
1
8
0
lb

ft

0
7
Ll

kgm
5
1
8
0
lb

fl

9
11

kgm
65
1
79

51b
ft
Crown
wheel
bolts

1400
and
1600

cc
Saloon

1400
and
1600
cc
Eslale

1800ce
Saloon

I800cc
Estate

1800cc
Van
7
8

kgm
51
58Ib
ft

4
8
5
5

kgm
35
40
Ib
ft

7
8

kgm
51
58Ib
ft

7
8

kgm
51
58Ib
ft

4
8
5
5

kgm
35
40
Ib
ft

0
9
1
2

kgm
6
5
8
7Ib
ft

1
9
2
6

kgm
13
7
18
8

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1
9
2
6

kgm
13
7
18
8

Ib
f
Front
cover

Drain

plug

Selector
lever
bolts

Side
retainer
bolts
Saloon

Drive

flange
bolts
Saloon

Reverse

lamp
switch

Idler
shaft

screw

Rear
cover
bolts

Cross
shaft
lock

pin

Final
drive
to

mounting
member

1400
and
1600cc
models
6
8

kgm
43
4
57
8IbJI

1800cc
models
5
7

kgm
36
2
50
6Ib
fI

Final
drive
to

suspension
member
6
7

kgm
43
4
51
0
Ib
ft

Final
drive
to
drive
shafls
5
6

kgm
36
431b
ft

Final
drive

flange
to

propeller
shaft
1
6
2
4

kgm
12
17
Ib
ft

Final
drive

flange
to

propeller

shaft
Eslale
1
6
2
4

kgm
l2
17Ib
ft

Mainshafl
locknut

Ll4
and
L16

engines
Four

speed
gearbox

Rearexlension
to
case

bolts
1
6
2
5

kgm
12
18Ib
ft

Gearbox
to

engine
2
5
4
0

kgm
18
29Ib
ft

Bottnm
cnver

L1
1
8

kgm
8
13
Ib
ft

Fronl
cover
L1
1
8

kgm
8
13
IbJI

Drain

plug
3
5
5
0

kgm
25
3
36
2

Ib
f

2
4

kgm
14
5
28
9IbJt

9
11

kgm
65
1
79
5Ib
ft
Final
drive

flange
to

propeller

shaft

l800cc
610

only
Reverse

lamp
switch

Mainshaft
nut
2
0
2
7

kgm
14
5
19
5
lb

ft

4
6

kgm
29
43
Ib
ft

Oil
drain
and
flller

plug
Saloon

129