1973 DATSUN B110 Service Repair Manual

ENGINE
ElECTRICAL
SYSTEM

SPECIFICATIONS

Make
and

type

Primary
voltage
v

Spark

gap
mm
in

Primary
resistance

at
200C
680

F
n

Secondary
resistance

at
200C
680F
Kn

External
resistor

at
200C
680
F
n

Applied
resistor
HANSHIN
HITACHI

H5
15
2
C6R
601

12
12

more
than
7

more
than
7

0
28
0
28

1
17
to
I
43
l
l
7

to
I
43

11
2
to
16
8
11
2

to
16
8

l
3tol7
l
3tol7

RC
15
5560R
151O

SPARK
PLUG

CONTENTS

DESCRIPTION

INSPECTION

CLEANING
AND

REGAP
EE
37

EE
37

EE
38

DESCRIPTION

The

spark
plugs
are
of
the
resister

type
having
14
mm

0
551
in
threads
and
0
8
to
0
9
mm
0
031
to
0
Q35
in

gap

Note
All

spark
plugs
installed
on
an

engine
must

be
of

the

same
brand
and
number
of
heat

range

INSPECTION

1
Remove

spark
plug
wire

by
pulling
on
boot
not
on

wire
itself

2
Remove

spark
plugs

3

Check
electrodes
and
inner
and
outer

porcelains
of

plugs
noting
the

type
of

deposits
and
the

degree
of

electrode
erosion

Refer
to

Figure
EE
74

Normal
Brown

to

grayish
tan

deposits
and

slight
elec

trode
wear
indicate
correct

spark

plug
heat

range
SPECIFICATIONS
AND

SERVICE
DATA

TROUBLE

DIAGNOSES
AND

CORRECTIONS
EE
38

EE
39

Carbon
fouled

Dry
fluffy
carbon

deposits
on
the

insula

tor
and

electrode
were

mostly
caused

by
slow

speed

driving
in

city
weak

ignition
too
rich
fuel
mixture

dirty
air

cleaner
etc

H
is

advisable
to

replace
with

plugs
having
hotter
heat

range

Oil
fouled
Wet

black

deposits
show

excessive
oil

en

trance
into
combustion

chamber

through
worn

rings

and

pistons
or
excessive

clearance
between

valve

guides

and

stems
If
the
same

condition
remains

after

repair

use
a

hotter

plug

Overheating
White
or

light
gray
insulator
with
black

or

gray
brown

spots
and

bluish
burnt
electrodes
indicate

engine

overheating
Moreover
the

appearance
results

from
incorrect

ignition
timing
loose

spark
plugs
low

fuel

pump
pressure
wrong
selection

of
fuel
a

hotter

plug
etc

H
is
advisable
to

replace
with

plugs
having
colder

heat

range

EE
37

ENGINE

Overheating

Normal
Carbon
fould

Fig
EE
74

SpaTk
plug
Life

4

After

cleaning
dress
electrodes
with
a

small
fine
fIle

to
flatten
the
surfaces
of
both

center
and
side
electrodes

in

parallel
Set

spark

plug
gap
to

specification

5

Install

spark
plugs
and

torque
each

plug
to
1
5

to
2

0

kg

m
ll
to
15
ft
lb

6
Connect

spark
plug
wires

CLEANING
AND
REGAP

Clean

spark
plugs
in
a

sand
blast

type
cleaner
Avoid

excessive

blasting
Clean
and
remove
carbon

or
oxide

deposits
but
do
not
wear

away

porcelain
If

deposits
are

too
stubborn
discard

plugs

Mter

cleaning
spark

plugs
renew

firing
surface

of

electrodes
with
me
mentioned
above
Then

gap
spark

plugs
to
0
8
to

0
9
mm
0

030
to
0
035

in

using
a
round

SPECIFICATIONS
AND
SERVICE
DATA

Make

Model

Size
Screw
dia

x
Reach

mm
in

Plug
gap
mm
in

Tightening

torque
kg
m
ft
b

EE
38
wire

feeler

gauge
All

spark

plugs
new
or
used
should
have

the

gap
checked
and
reset

by
bending
ground
electrode

Fig
EE
75

Setting
spaTk
plug
gap

NGK

HITACHI

BP5ES
1A6PW

14
x

19
0
55
x
0

75

0

8
to
0

9
0
031
to
0
035

1
5
to

2
5
11
0
to
15
0

ENGINE
ELECTRICAL
SYSTEM

TROUBLE
DIAGNOSES

AND

CORRECTIONS

When

engine
does
not

start

If
there
is
no
trouble
in
fuel

system

ignition
system

should
be
checked
This
can
be

easily
done

by
detaching
a

high
tension
cable
from

spark
plug
starting
engine
and
observing
condition
of

spark
that
occurs
between

high

tension

cable
and

spark
plug
terminal
After

checking
this

repair
as

necessary

Length
of

Trouble
location
Cause
Remedies

spark
gap

No

sparks
at
all
Distributor

Defective
insulation
of
condenser

Replace

Breakage
of
lead
wire
on
low
tension
side

Repair

Defective
insulation
of

cap
and

rotor
head

Replace

Point
does

not

open
or
close

Repair

Ignition
coil
Wire

breakage
or
short
circuit

of
coil

Replace
with
new

one

High
tension
cable
Wire

coming
off

Repair

Defective
insulation

Replace

I

to
2
mm

0
0394
Distributor
Point

gap
too
wide

Correct

to
0
0787
in

or

Oil

sticking
on

point
Clean

irregular

Point
burnt

too
much

Replace

Less
than
6

mm
Spark
plugs
Electrode

gap
too
wide
Correct
or

replace

0
2362
in

Too

much
carbon
Clean
or

replace

Broken
neck
of
insulator

Replace

Expiry
of

plug
life

Replace

2

When

engine
rotates
but
does

not
run

smoothly

In

this
case
there

are

many
causes
resulting
from
the

ignition
system
and

other

engine
conditions

not
related
to
ignition
Therefore
first

complete

inspection
of

ignition

system
should
be
carried
out

EE
39

Troubles

Engine
misses

Engine
causes

knocking
very

often

Engine
does

not

give
enough

power
Trouble
location

Distributor

Ignition
coil

High
tension
code

Spark
plugs

Distributor

Spark
plugs

Distributor

Spark
plugs
ENGINE

Causes

Dirty
point

Improper
point
gap

Leak

of

electricity
of

cap
and
rotor
head

Defective
insulation
of
condenser

Defective
arm

Defective

spring
of
arm

Breakage
oflead
wire

Worn

out
or

shaky
breaker

plate

Worn
out
or

shaky
distributor
shaft

Layer
short

circuit
or
use
of

inferior

quality

Deterioration
of

insulation
and
leak

of

electricity

Dirty

Leak
of

electricity
at

upper
porcelain
insu

lator

Improper
and
advance

timing

Coming
off
or

breakage
of

governor
spring

A

pin
or
a

hole
of

governor
portion
worn

out

Burnt
too
much

Improper
and
retarded

timing

Defedive
function
of

governor

Dirty
point

Point

gap
too
narrow

Dirty

EE
40
Remedies

Clean

Correct

Repair
or

replace

Replace

Oil
shaft

Replace
assembly

Replace

Replace
assembly

Replace
assembly

Replace
with

good

one

Replace

Clean

Repair
or

replace

Correct
the

fitting

Correct
or

replace

Replace

Replace

Correct
the

fitting

Replace
assembly

Clean

Correct

Clean

DATE
ENGINE
ElECTRICAL
SYSTEM

SERVICE
JOURNAL
OR
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or

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ENGINE

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DATSUN
1200

MODEL
B
110
SERIES

I
NISSAN

I

NISSAN
MOTOR
CO
LTD

TOKYO
JAPAN
SECTION
ER

ENGINE

REMOVAL

INSTAllATION

It

ENGINE
MOUNTING

ENGINE
REMOVAL
AND

INSTALLATION
ER
1

ER
4

ENGINE
REMOVAL
INSTAllATION

ENGINE
MOUNTING

CONTENTS

FRONT
ENGINE
MOUNTING

Removal

Reinstallation
ER
1

ER
1

ER
2
REAR
ENGINE

MOUNTING

Removal

Reinstallation
ER
2

ER
2

ER
3

r

0

iQ
@

q

Fig
ER
1
Structural
view

of
engine
mounting

This

engine
adopts
the

same

engine

mounting
method

as
AIO
The

strength
of
overall

engine

mounting
construc

tion
however
has

been
increased
in

response
to
the

increased

engine
weight
and

engine

output
Consequently

the

parts
used
for

engine
mounting
arc

not
inter

changeable
with
those
for
the

A
10

although
their

shapes

and
constructions
are

similar
FRONT
ENGINE

MOUNTING

Removal

I

Suspend
the

engine
with
wire

or
chain

2

Loosen
the

front

engine
mounting
insulator

upper

nuts
both
sides

ER

1