DATSUN B110 1973 Service Repair Manual

The

lamp
does

not

go
out
when

the

engine
is

started
Faulty
charging
system
BODY

Inspect
the

charging

system

WINDSHIELD
WIPER
AND

WASHER

Description

Wiper
motor

replacement

Wiper
blade

operating
range
CONTENTS

BE
26

BE
27

BE
27

Description

The
windshield

wipers
consist

of

wiper
motor
link

mechanism

wiper
arms
and

blades
The

wiper
motor

unit

consists
of

a
motor
and
auto

stop
mechanism
The

wiper
rnotor
is

of
a
2
speed

type

When
the

wiper
switch
knob
is

pulled
to
the
I

st

step

the
windshield

wipers

operate
at

low

speed
and
when

pulled
to
the
2nd

step
operate
at

high
speed

The

wiper
motor
unit
is

located
on

the
cowl
dash
in

BATTERY

Cl

WIPER

MOTOR

rrQ

J
WASHER
MOTOR

IB

ILRI

L
CJ

LA

t
Y

I
Ll

j

IBI

1
f
I

LW

I
Wiper
washer
switch

replacement

Washer
nozzle

adjustment

TROUBLE

OIAGNOSES
ANO

CORRECTIONS
BE
27

BE
27

BE
28

the

engine

compartment
and
the

link
mechanism
is

located
behind
the

instrument

panel

The

electrically
operated
windshield
washer
consists
of

washing
fluid
lank

with

rnotor
and

pump
washer

nozzles

and

vinyl
tube
used

to

connect
those

compo

nents

The

windshield
washer

switch
is

combined
with

the

windshield

wiper
switch
to
a

single
unit

When

operating

the
washer

twist
the

switch
knob

IG

FUSE

W

v

l

i

f
WIPER
SWITCH

10FFI
I
2

I
TWIST

I

y

ILl

I

b

I

J
6

I
BLII

Fig
BE
43
Circuit

diagram
for
windshield

wiper
washer

system

BE

26

BODY

ELECTRICAL

Wiper
motor

replacement

First

of
all
remove
the

connector

plug
from
the

wiper
motoI

2
Remove
a
nut
used
to
connect

wiper
motor
worm

wheel
shaft
to

the

connecting
rod
from
passenger

compartment
side
dash

panel

3
Loosen
three
bolts
used
to
install
the

wiper
motor
on

the
cowl
dash
remove
the

wiper
motor

4
Reinstall
a
new

wiper
motor
in
reverse

sequence
of

removal

Fig
BE
44

Wiper
motor

Q

V
rt

ir
o
y

At

Jllif

Fig
BE
45

Wiper
motor

linkage

Wiper
blade

operating
range

When

removing
the

wiper
arm
loosen

the

wiper
arm

attaching
nut
and

pull
out
the

wiper
arm
from
the

pivot

shaft
When

installing
the

wiper
arm
on
the

pivot
shaft
provide
the
arm
with
a

proper
installation

angle
so
that

the
windshield

wiper
blade
is

positioned
correctly
The

wiper
arm

attaching
nut

tightening
torque
is
60
5

kg
m

434
36
2lb
ft

Fig
BE
46

Removing

wiper
arm

00

I

i

Fig
BE
47

Wiper
arm

installation

Wiper
washer
switch

replacement

Remove
the

connector
from
back
of
the

wiper

washer
switch

2

Depressing
and

turning
the

wiper
switch

knob

counterclockwise
remove
it

3
Loosen

the
escutcheon
and

remove
the

wiper
switch

from
the
cluster
lid

Washer
nozzle

adjustment

When
the

washer
nozzle
is
installed
or
when
washer

fluid
is
not

sprayed
properly
adjust
the
nozzle
direction

so
that

fluid
is

sprayed
in

range
indicated
in

Figure
BE
48

BE
27

BODY

Flashed

range
of

washing

solve
lt
Ca
ution
in

use
of

washer

r
500
mm

19
7
n

E

I
fTh

e

i

E
I

I
N

j
1
N

I
1

r
j

I

I
e

f
1
Never

operate
the

washer

continuously
for
more
than

30
seconds
or
without
the

washing
liquid
This
often

causes
the
washer
s

improper
operation
Normally
the

washer
should
be

operated
for

less
than
10

seconds
at

time

Fig
BE
48

Adjusting
washer
nozzle

TROUBLE

DIAGNOSES
AND

CORRECTIONS

Condition

Probable
cause
Corrective

action

Wiper
system
does
not

oper

ate
Open
or
short
circuit

of
feed
har

ness
Repair
harness

Blown
ofT

fuse
or

improper
fuse

contact
Replace
or

correct
fuse

position

Improper
connector
contact

Correct
contact

Defective
control

switch

Replace
control

switch

Defective

motor

Replace
motor

Slow

rotation
of

wiper
motor

Rotating
part
is
out

of
lubricant

Lubricate

rotating
part

Defective
motor

Replace
rnotor

Wiper
speed
does
not

change
Defective

switch
or

improper
switch

contact
Replace
or

repair
switch

Wiper
does
not

stop

Improper
switch
contact

Replace
or

repair
switch

Irnproperly
grounded
switch

Repair

Improper
adjustment
of

aut
stop

point
Replace
motor

Noisy
wiper
motor

Defective
motor

Replace
motor

8E

2B

BODY
ELECTRICAL

Improper
stop
position
of

wiper
arm
Improperly
positioned
blade
and

arm
Correct

position

Damaged
or
worn
auto

stop
point
Replace
motor

Improper
wiping
Worn

rubber
blade
Replace
blade

Inadequate
pressing
force
of

wiper

arm
Replace
wiper
arm

IGNITION
SWITCH
AND
STEERING
LOCK

CONTENTS

IGNITION
SWITCH

Removal

IGNITION
SWITCH
WITH

STEER
ING
LOCK
BE
29

BE
29

BE
29

IGNITION
SWITCH

This
3
or
4

position
switch
is
installed
on
the

ignition

switch
bracket

which
is
installed
on
the
instrument

panel

with
two
screws
and
controls
the

engine
ignition
system

and
most
of
electrical

equipment

Removal

Remove
the

ignition
switch
connector
loosen
the

ring

nut
remove
the

ignition
switch

from
the
bracket
Description

Steering
lock

replacement

Warning
switch
and

warning
buzzer
BE
29

BE
30

BE
30

Fig
BE
49

Removing
ignition
switch

IGNITION
SWITCH
WITH

STEERING
LOCK

Description

The

steering
lock
is
built
in
the

ignition
switch
When

the

key
is

set
to
Lock

position
and
rernoved
the

steering
system
is
locked

automatically
The

locking

8E
29

mechanism
is
installed
on
the

steering
jacket
tube
When

the

key
is
set
to

Lock

position
and

removed
the

steering
lock

spindle
is

inserted
in
a
notch
in

the
collar

which

is

stationarity
set
on
the

steering
shaft
to
lock
the

steering
wheel

The

ignitiun
switch

is
installed
on
the

back
of

key

cylinder
with
a

attaching
screw
and

interchangeable

tf
iY
t

7

a

1

Ignition
switch

part

2

Key
cylinder

part

3

Steering
jacket
tube

4
Lock
collar
5
Lock

pindle

6

Steering
shaft

7
Self

shear

type
screw

8

Attaching
screw

Fig
BE
50

Steering
lock

Key

position

Terminal
OFFor

GARAGE
Lock
ON

ST
ART

B

Battery

IG

Ignition

S
Starter

R
Resistance
b

1

Steering
lock

replacement

For
the

purpuse
of

tamper
proof
the
self
shear

type

screws
are

used
and
their

heads
are
sheared
off
when

installed
so
that

the

steering
lock

system
cannot
be

removed

easily
Replace
the

steering
lock

proper
in

accordance
with
the

following
instructions
when

required

Loosen

two

attaching
screws
and
break
the

remaining

twu
self
shear

type
screws
with

a
drill

or
other

proper

tool

Now
remove
the

steering
lock

proper
from
the
BODY

BE
30
steering
jacket
tube
When

installing
a
new

steering
lock

proper
be

sure
tu

tighten
two
new
self
shear

type
screws

to
shear

off
their

heads

Warning
switch
and

warnmg
buzzer

Fig
BE
51

Warning
switch

The
circuit
of
this

warning
system
is
closed

when
the

door
is

opened
with
the

steering
unlocked
because
the

door
switch
and

warning
switch

are
connected
in
series

When
the
cicuit
is
closed
the

buzzer
sounds

When

replacing
the

warning
switch
disconnect

two

cables
remove
the

cap
loosen
two

attaching
screws
and

remove
the

warning
switch

The

warning
buzzer
is
installed

on
the

back

left
side

of
the
instrument

panel
with

two

attaching
screws

FUSE
WARNING

SWITCH

WARN

BUZZ
G

n

WITCH

t

Fig
BE
52
Circuit

diagram
for

warning
system

BODY
ELECTRICAL

CLOCK

Installation

upper
portion
of
the

instrument

panel

Connect
red

blue
cable
or
red

green
cable
for
illumi

nation

lamp
of
the

clock
to
the
terminals
on
the

printed

circuit
board

for
illumination

lamp
on
the

meter

housing

Ground
the
clock

ground
cable
In
the

case
of
a

square

type
clock

tighten
the

ground
cable

together
with

the

meter

housing
installation
screw
1

When

installing
clock

first
of
all

remove
the
cluster

lid

2
Remove
the
mask
and
install
the

clock
on
the
cluster

lid
in
the

place
of
mask

3
Connect
blue
cable
or

yellow
red
cable

coming
out

from
the
clock
to
the
blue
cable
of

harness
laid

along
4
Reinstall
the

cluster
lid

RED
BLUE

CABLE
BLUE

CABLE

Fig
BE
53

Square
type
clock

Fig
BE
54

Round

type
clock

BE
31

BODY

RADIO

Removal

Remove
he
cluster
lid

2
Disconnect
the
lead
wires

from
the
radio

3
Remove
two

nuts
used
to
install
the

front
side

of
the

radio
on
the
instrument

panel

4

Loosen
two
screws
as
shown
in
the

Figure
BE
55

and
remove
the
bracket

used
to
install
the
rear
side

of
the

radio
on
the
instrument

panel

5
Remove
the

radio

Noise

prevention
chart

Run
the

engine
raise

the

antenna
set
volume
to

Condition

Apparent
cause

Ignition
system

Noise
occurs

when

engine
is

oper
High
tension

code

ated

Ignition
coil
i

O

i

M

1
iiJ

1
7

L
l

o
f

I
ft

V

r

1
1
v

I

I

t

i

J

iL

1

Power
soutee
cable

Blue
white
cable
of

harness

2
Power
source
cable
Radio

3

Speaker
cables
4

Antenna
cable

5

Single
pole
fuse

6

Spare
fuse

7

Attaching
screws

Fig
BE
55

Removing
radio

maximum

and
set
the

dial
at

a
medium

point
without

catching

broadcasting
wave

Repair

High
tension

code

may
be
dis

regarded
because
noise

suppressor

is
used

Apart
the

choke
wire

frorn
the

ignition
coil
as

far
as

possible

Install
a
0

5
uF

capacitor
in

primary

side
terminal
of

ignition
coil

Note
8e
careful
not
to
install

capacitor
in

secondary
or

primary
breaker
side
or

otherwise
the

engine
be

comes

improper

Connect
wire
between

engine
and

ignition
coil

locating
area
of

body

with
bond

BE
32

BODY

ELECTRICAL

Distributor
Secure

ground
of

ignition
coil

Secure
contact
of

carbon
electric

pole
and

rotor

Eliminate
excessive

tip
on
the

rotor

pole
or

cap
pole
by
scrubbing
with

a
screwdriver

Check

stagger
between

rotor
and

stator

Charging

system

Sound
of

alternating
current

pre

sents
Alternator
Install
a
0
5

l
F

capacitor

on

charging
terminal
A

Note
Do
not
use

capacitor
ex

cessively

If

capacity
is
used
ex

cessively
the
alternator
coil

will
be
broken

When

the
accelerator

pedal
is
de

pressed
or
released
noise

presents
Regulator
Install
a
0
5
l
F

capacitor
on
A

terrninal
of
the

voltage
regulator

Supplement
equipment

When

engine
starts
noise

presents

Noise

still

presents
even
after

stopping
the

engine
Operative
noise

of
ther

rnometer
and
fuel

gauge
Install
0
1
l

F

capacitor
between

terminal
and

ground
wire

Note
If

a

capacitor
having
ex

cessive

capacity
is
used
indi

cation
of
meter
will
be
devi

ated

Noise

presents
when
horn
is
blown

Horn
Install
a
0
5

IF

capacitor
on
the

horn

relay
terminal
or
horn

switch

Noise

presents
when
turn

signal

lamps
are

operated
Flasher
unit
Install
a
0

5
l
F

capacitor

Note
a
Be

sure
to
locate

capacitor
most
near

position

of
noise

source
and

connect
in

parallel
completely

d
Make

installation
and

conneCtion

securely

b

Cut
lead

wire
as
short
as

possible

c
Ground
wire
should
be

placed
on
the

body
e

Carefully
identify

marks
IN
or
OUT

BE
33

Removal
and
installation

A

I

I

I

@

I

Removal
and
installation
BODY

HEATER

CONTENTS

BE
34
TROUBLE
DIAGNOSES
AND

CORRECTIONS
BE

35

Fig
BE
56
Heater
unit
6

1
Heater
hose

2

Clamp

3
Shut
valve

4
Vent
valve

5
Room
valve

6
Defroster
hose

7
Defroster
nozzle

8
Control
wire

heater
control

to
room
valve

9
Control
wire

heater
control

to
water
cock

10
Control
rod

heater
control
to
shut
valve

11

Heater
cock

1
In

order
to
ease
the

operation
remove
the

package

tray
and
ash

tray
wires
between

water
cock
and
peater
control
and

room

valve
and
heater
control
at
the
heater

unit
side

Dis

connect
the
control
rod

from
the
shut
valve

2
Loosen
the

hose

clamps
and
disconnect
two
heater

hoses
between

the
heater
unit

and

engine
at
the

engine

side
Remove

the
hose

clamps
from
the
heater
hoses
Note
When

carrying
out
this

operation
be
sure
to
set
the

heater
control

upper
lever
to

OEF
and
lower

lever
to

OFF

3

Disconnect
cables
from
the
heater
unit
heater

control
and
main

harness
5

Withdraw
two

left
and

right
defroster
hoses

by

hand

4

Remove
the
wire

clamps
and
disconnect
two
control
6

Loosen
four

attaching
screws
used
to
install
the

BE
34

BODY
ELECTRICAL

heater

unit
on
the
dash

board
and

remove
the

heater
unit

carefully
panel

8
Rernove
two

self

tapping
screws
from
back
of
the

instrument

panel
and
remove
the

defroster
nozzle

7

When

removing
the
heater

control
from
the
instru

ment

panel
remove
the
control

knob
and
loosen
two

screws
used
to
install

the
heater
control
on
the
instrument
9
The
heater
unit
is
installed
in
reverse

sequence
of

removal

TROUBLE
DIAGNOSES
AND

CORRECTIONS

Condition
Probable
cause

Hot
air
does
not

come
out

Motor
does

not

operate
Open
or
short
circuit
of
feed

har

ness

Defective
switch

Defective
motor

Fan
cannot
be

rotated

smoothly
by
hand
Motor

journal
is
out
of
lubricant

or

stick

Hot
air

dose
not
come

out
nevertheless
fan
is

rotating
Slow
rotation

of
fan

Loose
fan

installation

Air

temperature
is
low

Hot

water
does

not
cir

culate
Defective
water

pump

Bent
or

clogged
of

connecting
hose

Defective
hot

water
cock

Air
is

left
in
the
hose

Water

temperature
is
too

low
Defective
thermostat

Water

leakage
from

heater
Defective
water
hose

Loose

clipping
of

water
hose

Improper
soldering
of
heater
core

Defective
defroster
Disconnected
defroster
hose

Bent
or
broken
defroster
hose

BE
35
Corrective
action

Check

and

repair
wiring
harness

Conduct

continuity
test
and

if

required
replace
switch

Replace
motor

Lubricate

journal

Replace
motor

Replace
motor

Repair

Repair
water

pump

Repair
or
clean

piping

Repair

Purge
air

out
of
hose

Replace
thermostat

Replace
water
hose

Retighten
clip

Solder

leaking
position

Correct
connection

Correct
or

replace