1973 DATSUN B110 charging

DATSUN

1200

MODEL
B
11

0
SERIES

L
NISSAN

I

NISSAN
MOTOR
CO

LTD

TOKYO
JAPAN
SECTION

EE

ENGINE

ELECTRICAL

SYSTEM

BATTERY

STARTING
MOTOR

CHARGING

CIRCUIT

ALTERNATOR

REGULATOR

IGNITIO
N

CIRCUIT

DISTRIBUTOR

IGNITION
COIL

SPARK
PLUG
EEl

EE
3

EE

15

EE

16

EE

23

EE

29

EE
29

EE

36

EE

37

ENGINE
ElECTRICAL
SYSTEM

BATTERY

CONTENTS

REMOVAL

CHECKING
ELECTROLYTE
LEVEL

CHECKING
SPECIFIC
GRAVITY
EE
1

EE
l

EE
1

REMOVAL

Disconnect
the

negative
terminal

first
and
then

the

positive
terminal

2
Remove
the
retainer
nuts
and
take
off

retainer

3
Release

retainer
bolts
and

remove

battery

CHECKING

ELECTROLYTE
LEVEL

Adjust
the

electrolyte
level
in
the

battery
when
the

battery
is
in
a

fully
charged
condition
The

electrolyte

hould
maintain
its
indicated

correct
level

in
the

battery

N
water
other
than

distilled
water
should
be
added

Q

cD

I

1
Vent

plug

2

Electrolvte

3
Level
indicator

Fig
EE
1

ElectTolyte
level

CHECKING
SPECIFIC
GRAVITY

The

specific
gravity
of
the

battery
liquid
is
measured

by
means
of
a

hydrometer
When

according
to

the
table

described

later
the

charging
of

the

battery
is
below

60

percent
the

specific
gravity
is
below
1

20
as
corrected

at

200e
680F
and
also

when
the
difference
in

the

specific
CHARGING

BATTERY
FREEZING
EE
2

EE
3

gravity
of

the
individual
cells
is
above
0
025
the

battery

must
be

changed
or

adjusted

tl

f

ead

p
level

jSCale
2

II

It
I
TheTmat

gauge

I
2

Hydrometer

Fig
EE
2

Checking
specific
gTavity

Temperature
conversion
in

measuring

specific
gravity

The
standard

specific
gravity
of
the

electrolyte
is

obtained
when
the

battery
is

fully
charged
at
an
electro

lyte
temperature
of
200

e
680
F

When

temperature
rises
loe
1
80F
the

specific

gravity
decreases
0

0007
and

reversely
when

temperature

drops
loe
I
ROF

the

specific
gravity
increases

0
0007

Therefore

assuming
the

specific
gravity
at
tOe
is

St

S20

the

specific

gravity
at
200e
680F

is
calculated

according
to

the

following

expressions

S

o
St

0
0007
t
20

If
0

0007
t
20
is
X

S

o
St
X

Accordingly
if
X
is
known
beforehand
S

o
can
be

obtained

easily
The
values
of
X

are
shown
in
the

following
table

EE
1

ENGINE

Temperature

Oc
of
Temperature

C
F
x
Temperature

Oc
F
x

0
32
0
0
014
14
572
28

82
4

0

004
0

006

33
8
IS
59
0
19

I
84
2

0
013

2

35
6
16
60
8

0
003
30
86
0

0
007

3

37
4
0
012
17
61
6

0
001
31
87
8

0
008

4

39
2
18
64
4

32
89
6

0
011

0
001

5
41
0
19

66
2

33
91
4
0
009

6
42
8
0

010
20
68
0

0
34
93
2
0
010

7
44

6
0
009
21
69
8
35
95
0

0
001
0
01l

8
46
4
22
71
6
36
96
8

0
008

9
48
2
23

73
4
0

002
37
98

6
0
012

10
50
0
0
007
24

75
2

0
003
38
100
4

0
013

II

51
8
25

77
0

39
t02
2

0
006

0
004

12
53
6

16
78
8
40

104
0

0
Ot4

13
55
4
0

005
27
80
6
0

005

The
state

of

discharge
of

the

battery
can
be
determined

by
checking
the

specific
gravity
according
to
the
follow

ing
table
The

electrolyte
level
should
be

satisfactory

U

tn

l

k
1

I
P

I

IZf

I
r7

42
I

bt
7

J
I
I

11
0

I
M
I

L
J
I

10
20
30
0
50

60
70
aD
90

100

Charging
condition

Fig
EE
3

Charging
condition

CHARGING

When
the

specific
gravity
of
he

electrolyte
is

below

1

20
with

the

electrolyte
level

being

satisfactory
it
is

necessary
to

recharge
the

battery
Whenever
a

quick
x

Converted

specific
gravity
520

V

9d

f

o
1

28

u
1
6

c

E

1
24

l
22

o

0

U5

S

I

1

1
2

1
10

1

NON
M

i

Electrolyte

temperature
lOCI

charge
is
carried
out
the

negative
terminal
of
the

battery
must
be
disconnected
The
corroded
terminal

posts
of
the

battery
should
be
cleaned
with
warm

water
of

bicarbonate

of
soda
solution

prior
to

charging
The

following

points
should
be
observed
in

charging

If
the
electrolyte
level
is

below
the

plates
add

distilled
water

2
Remove
all
the
vent

plugs
and

keep
them

at
a

particular
place

3

Keep
the

electrolyte

temperature
below
450C

l130F
during
charging

4

During
charging
the

voltage
increases

gradually
until

it

reaches
the

particular
maximum
value
2
5

Vice
II
The

charging
is

completed
when
this
value

stays
almost

constant
for
more
than
one
hour
and
all
cells

gas
freely

EE
2

ENGINE
ElECTRICAL
SYSTEM

5

If
the

specific

gravity
is
above
1
260
200C
or
680F

after

charging
adjust
it

by
adding
distilled
water

6

Keep
any
open
flame

away
from
the

place
where
the

battery
is

being

charged

7

Replace
vent

plugs
and
clean
the

upper
face
of
the

battery
after

charging

BATTERY

FREEZING

Temperatures
at
which

battery

electrolyte
freezes

vary

with

acid
concentration
or
its

specific

gravity
A

battery

with

an
insufficient

state
of

charge
will

freeze
at
lower

temperatures
If

specific

gravity
of
a

battery
falls
below

I
I

the
indication
is
that
the

battery
is

completely

discharged
and
will

freeze

readily
when

temperatures
fall
below

freezing

point

Note
Use
extreme
caution
to
avoid

freezing

battery
since

it
will

usually
ruin
the

battery

o

I

I
1

G
10

I

1
o

i
20

I

u
30

I
I
0

40

I
0

SO

I

60

0

I
E

f
o

70

I

80

1
00

1
04
1
08
I
12

1
16
20

24
1

28
1
32

E

E004

Specific
gravity
of

electrolyte

Fig
EE
4

FTeezing
point
of
electrolyte

STARTI
NG

MOTOR

CONTENTS

OPERATION

CONSTRUCTION

REMOVAL

DISASSEMBL
Y

CLEANING
AND

INSPECTION

Terminal

Field
coil

Brush
and
brush

lead
wire

Brush

spring
tension

Armature

assembly

Over

running
clutch

assembly

Testing
brush

holder
for

ground
EE
3

EE
4

EE
4

EE

5

EE
6

EE
6

EE

6

EE

6

EE
6

EE
7

EE
8

EE
8

OPERATION

The

purpose
of
this

starting
system
is
to
crank
the

engine

When
the

ignition
switch
is
set

to
start
current
flows

through
the
series

and
shunt

coils
of
the

solenoid
and
Pinion

case

bearing
metal

Magnetic
switch

assembly

REASSEMBL

Y

TESr

Performance
test

Diagnoses
of
test

Magnetic
switch

assembly
test

SPECIFICATIONS
AND
SERVICE
DATA

Specifications

Service
data

TROU8LE

DIAGNOSES
AND

CORRECTIONS
EE
8

EE
8

EE
9

EE
9

EE
g

EE
10

EE
10

EE
11

EE
11

EE

11

EE
12

thus
the

solenoid
is
excited
The

plunger
is

pulled
into

the
solenoid
so
that

it

operates
the
shift
lever
to

engage

the
drive

pinion
with

flywheel
ring

gear
and

the

magnetic

switch
is

closed

EE
3

ENGINE

Arma
ture
shaft

Outer
diameter

Pinion
side
mm
in
12

950
to
12
968

0

5082
to
0

5105

11

450
to
II

468

0
4507
to
0
4515

0

1
0

0039

0
08
0
0031
Rear
end
mm
in

Wear
limit

Bend

limit
mm
in

mm
in

Gap
1
between
the

pinion
front

edge

and
the

pinion
stopper
mm
in
0
3
to
1
5

0
0118
to

0
0591

Magnetic
switch

Coil
resistance

Series
cuil
Q

Shunt
coil
n

Plunger
L
dimension
mm
in
0
3
at
20De

68UF

0
9
at
ooe
680F

317t032
3

l
248
to
1
272

TROUBLE

DIAGNOSES
AND

CORRECTIONS
12
950
to
12
968

0
5082
to
0
5105

11

450
to
II

468

0
4507
to
0
4515

l

0
1

0
0039

0
08

0
0031

0
3
to
1
5

0

0118
to
0

0591

0
3

at
20De

680Fl

0
9
at
200e
680F

317
to
32
3

l
248
to
I
272

Troubles
Trouble
location
Causes
Remedies

Starting
motor
will
not

operate

No

magnetic
switch
Battery
Defective

battery
Replace
battery

operating
sound

Over
discharging
Measure

specific
gravity

of

e
Ie

ctrolyte
and

ch
lrge
or

replace
the

battery

Ignition
switch
Defective
contact
Correct

or

replace
ig

nition
switch

Wiring
Faulty
starting
motor

grounding
Correct

Faulty
battery
grounding
Correct

Broken
or
disconnected
cable
Correct

or
replace

EE

12

Magnetic
switch

operating
sound
is

heard

The

starting
motor

rotates

Pinion

gear
does

not

intermesh
with

ring

gear
ENGINE
ELECTRICAL
SYSTEM

Starter

Magnetic
switch

Battery

Wiring

Starting
motor

Magnetic
switch

Ring
gear

Starting
motor
Broken
armature
or
field
coil
cable

Broken
brush

pig
tail

Defective
mica

Broken
or
shorted
series
coil

Faulty
plunger
sliding

Over

discharging

Faulty
terminal

contact
or
loose

connection

Faulty
B
or
M
terminal
connections

Shorted
armature
or
field
coil

Worn

brush
or

improper
spring

pressure

Contaminated
commutator
or
de

fective
mica

Faulty
brush
connection

Seized
metal

Armature
contacted
with

pole
core

Insufficient
plunger
L

dimension

Faulty
contact

Broken
or

shorted
shunt
coil
wire

Worn
teeth

Weakened

pinion
sleeve

spring

Worn

pinion
teeth

EE

13
Replace

Replace

Correct
or

replace

Replace

Repair
or

replace

Measure

specific

gravity

of

electrolyte
arid

charge
if

necessary

Clean
and

retighten

Retighten

Repair
or

replace

Repair
or

replace

Clean
or

repair

Repair

Replace

Repair
or

replace

Adjust

Replace

Replace

Replace

Replace

Replace

Pinion
intermeshes

with

ring
gear

Starting
motor

rotates

and

pinion
intermeshes

with

ring
gear
but
ro

tation
is

too
slow

When

starting
switch
is

set
to
OFF
the
start

ing
motor
does
not

stop
Starting
motor

Battery

Wiring

Ignition
switch

Starting
motor

Ignition
switch

Magnetic
switch

Starting
motor
ENGINE

Faulty
pinion
sliding

Dropped
off
lever

pin

Excessive

plunger
L
dimension

Defective

over

running
clutch

Over

discharging

Improper
or
loose
terminal
contact

Improperly
tightened
connection

Rough
contact
surface

Shorted
armature
coil
or
field
coil

Worn
brush
or
insufficient

spring

pressure

Contaminated
commutator
or
im

proper
brush
contact

Defective
mica

Lack
of
metal
lubrication

Armature

contacted
with

pole
core

Faulty
returning

Seized
contact

Shorted
coil

Faulty

plunger
sliding

Pinion
does
not

disengage
from
the

ring
gear
smoothly

Pinion

spline
does
not

disengage

smoothly

Seized

pinion
metal

EE
14
Repair

Repair

Adjust

Replace

Charge
battery

Repair
and

retighten

Retighten

Repair
or

replace

Repair
or

replace

Repair
or

replace

Repair

Repair

Repair
or

replace

Repair
or

replace

Replace

Replace

Replace

Replace

Repair
or

replace

Repair
or

replace

Replace

ENGINE
ElECTRICAL

SYSTEM

CHARGING
CIRCUIT

IGNITION

1

i
n

ITCH

r
B

i
i

vel

oU

ARMATURE

lip
J

l
t

lJ

FIEL

Df

e
I
I
3
2

I

u
P

5
0

IL
U
p

P
f

H
i

I

I

L

J

L
J

ALTERNATOR

VOL
TAGE

REGULATOR
The

charging
circuit

consists
of
the

battery
alternator

regulator
and

necessary
wiring
to
connect

these

parts
The

purpose
of
this

system
is
to
convert

mechanical

energy

from
the

engine
into

electrical

energy
which

is
used
to

operate
all

electrically
operated
units
and
to

keep
the

battery
fully
charged

When
the

ignition
switch
is

set
to
on

current
flows

from
the

battery
to

ground
through
the

ignition
switch

voltage

regulator
IG
terminal

primary
side
contact

point

PI

movable

contact

point
P2

voltage
regulator
F

terminal
alternator
F
terminal

field
coil
and
alternator

E

terminal
as
shown
in

Figure
EE
27

by
full

line
arrow

marks
Then

the
rotor
in
the
alternator
is
exited
On
the

other

hand
current
flows
from
the

battery
to

ground

through
the

ignition
switch

warning
lamp
voltage
regu

lator
L
terminal

lamp
side

contact

point
P4

movable
contact

point
PS
and

voltage

regulator
E

terminal
as
shown

by
dotted
line

arrow
marks
Then
the

warning
lamp
ligh
ts

When
the

alternator

begins
to

operate
three

phase

alternating
current
is

induced
in
the

armature
This

alternating
current
is

rectified

by
the

positive
and

negative

silicon

diodes
The

rectified
direct
current

output
reaches

the
alternator
A
and

E
terminals

On

the
other
hand
the
neutral

point
voltage
reaches

N
and
E

terminals

nearly
a

half
of
the

output

voltage
and

current
flows

from

voltage
regulator
N

terminal
to
E

terminal
or

ground
through
the
coil
VCI
as
shown
in

Figure
EE

28

by
the
dolled

line

arrow

marks
Then
the

coil
vc
I
is

excited
and
the

movable

contact

point
P5

comes
into
contact

with

voltage

winding
side
contact

point
P6
This
action

causes
to

turn
off
the

warning
lamp
and

complete
the

voltage

winding
circuit
as

shown

by
the
ullline
arrow
marks

When
the

alternator

speed
is
increased
or

the

voltage

starts
to
rise

excessively
the
movable
contact

point
P2

is

separated
from

the

primary
side
contact
P

1

by
the

magnetic
force
of

coil
V2

Therefore

register
RI
is

applied
into
the
field
circuit

and

output
voltage
is

decreased
As
the

outpu
t

voltage
is

decreased
the

movable

contact

point
P2

and

primary
side

contact
PI
comes

into

contact
once

again
and

the
alternator

voltage

increases

Thus
the

rapid
vibration

of
the

movable

contact

point
P2
maintains
an

alternator

output

voltage
to
constant

When
the

alternator

speed
is

further
increased
or
the

voltage
starts
to
rise

excessively
the

movable
contact

point

P2

comes
into
contact
with

secondary
side

contact

point
finally
Then
the

field
current
is
shut
off
and

alternator

output
voltage
is
decreased

immediately
This

action

causes
to

separate
movable
contact
P2
from

secondary
contact
P3

Thus
the

rapid
vibration
of
the

movable
contact

point
P2
or

breaking
and

completing

the
field
circuit
maintains
an
alternator

output
voltage
to

constant

j

T
SA

TIERY

I

l

e

7

Fig
EE
27

ChaTging
ciTcuit
1

EE
15