height DATSUN B110 1973 Service Owner's Manual

ENGINE

3
Connect
a
3

way
connector
a

manometer
and
a

cock
or
an

equivalent
3

way
change
cock
to
the

end

of
the

vent
line

4

Supply
fresh
air
into
the

vapor
vent
line

through
the

cock
little

by
little

until
the

pressure
becomes
368

mm

Aq
14
5
in

Aq

5
Shut
the
cock

completely
and

leave
it
that

way

6
After
2
5
minutes
measure
the

height
of
the

liquid

in
the
manometer

7
Variation
of

height
should
remain
within
254

mmAq
1
0
in

Aq

8
When
the
filler

cap
does
not
close

completely
the

height
should

drop
to
zero
in
a

short
time

9

If
the

height
does
not

drop
to
zero
in
a

short
time

when
the

filler

cap
is
removed
it
is
the
cause
of
the

stuffy
hose

Note
In

case
the
vent
line
is

stuffy
the

breathing
in

fuel

tank
is
not

thoroughly
made
thus

causing

insufficient

delivery
of
fuel
to

engine
or

vapor

lock

It
must
therefore
be

repaired
or

replaced

3

way

connector

Cock

Air

Manometer
Vapor
liquid

seearator

Flow

guide
valve

E

CQ29

Fig
ET
40

Checking
evaporative
emission
control

system

Checking
flow

guide
valve

I
Disconnect
all
hoses
connected
to
the

flow

guide

valve

2
While
lower

pressure
air
is

pressed
into

the
flow

guide
valve
from
the
ends
of
vent
line
of

fuel
tank
side

the
air
should

go
through
the
valve
and
flow
to

crankcase

side
If
the
air
does
not
flow
the

valve
should

be

replaced
But
when
the
air
is
blown
from

crankcase

side
it
should
never
flow

to
the
other

two
vent
lines

3
While

the
air
is

pressed
into

the
flow

guide
valve
from
the
carburetor
air

cleaner
side

it
flows
to
the

fuel

tank
side
and
or

crankcase
side

4

This
valve

opens
when
the

inner

pressure
is
10

mmHg
0
4
in

Hg
In

case
of

improper

operations
or

breakage
replace
it

From

carburetor

air
cleaner

From
fuel
tank

i

I
I

ti

i

i

1
1

i
To
ran
kcase

E
C030

Fig
ET
41
Flow

guide
valve

Checking
fuel
tank

vaCCUID
relief

valve

operation

Remove
fuel
filler

cap
and
see
if
it
functions

properly

as

follows

Wipe
clean
valve

housing
and
have
it
in

your
mouth

2

Inhale
air
A

slight
resistance

accompanied
by
valve

indicates
that
valve
is
in

good
mechanical
condition
Note

also
that

by
further

inhaling
air
the
resistance
should
be

disappeared
with
valve
clicks

3

If
valve
seems
to
be

clogged
or
if
no
resistance
is
felt

replace
cap
as
an

assembled
unit

T

1i
v

rUr1f
AlI
j

r
I
r
tLMJJl

rr
L

cc

11

J
v

II

4J
L

Valve
I

valve
seat

Spring
Valve

housing

Fig
ET

42
Fuel

filler
cap

ET
24

ENGINE
MECHANICAL

Bendin9
limit
0
05mm
0
0020
in

Standard
0
of5mm
0
0006
in

or
less

Fig
EM
44

Camshaft
bend
check

Standard

height
of
cam

mm
in
36
45
to
36
55

I
435
to
I
439

Wear

limit
of
cam

height

mm
in
0
5
0
0197

Allowable
difference
in

diame

ter
maximum
worn
and
mini

mum
worn

parts
of
camshaft

journal
mm
in
0
03

to
0
07

0
0012
to
0
0028

Maximum
tolerance
in

journal
diameter

mm
in
0
1

0
0039

Camshaft
end

play

mm
in
0
02

to
0
08

0

0008
to
0

0031

CYLINDER
BLOCK

Check
the

cylinder
head

visually
for
defects
such
as

cracks
and
flaws

2

Measure
the

top
of
the

cylinder
block
cylinder
head

mating
face
for

warping
If
the

warp
exceeds
the
limit

correct
it

EM
15
Standard
Maximum

tolerance

Surface
flatness
less
than

mm
in
0
05
0
0020
0
1
0
0039

Distortion
limit
0
10mm
0
0039
in

Standard
0
05mm
0

0020

inLor
less

Fig
EM
45

Cylinder
block

surface
check

3
Measure
the

cylinder
bore
for
out
of
round
and
wear

with
a
bore

gauge
If
wear
or
out
of
round
is
excessive

rebore
the

cylinder
walls

by
means
of
a

boring
machine

Wear
limit
0
2mm

0

0079

Fig
EM
46

Measuring
the

cylinder
bore

4
When
wear
or

out
of
round
is
minor
and
within
the

limit
remove
the

step
from
the

topmost
portion
of

the

cylinder
by
the
use

of
a

ridge
reamer
or
other
similar
tooL

ENGINE

Fig
EM
75
Piston
and

connecting
rod

assembly
installation

Notes
8

I
nsert

the

pistons
in
the

corresponding
cyl

inders

b

Apply
engine
oil
to

parts
as

requried

c

Arrange
pistons
so

that
the
F
mark
on
the

piston
is
faced
to

the
front
of
the

engine

d
Install

piston
rings
at
180
to
each
other

avoiding
to
fit
them
in
the
thrust
and

piston

pin

axial
directions

Fig
EM
76

Connecting
rod

cap
installation

Note

Arrange
connecting
rods
and

connecting
rod

caps

so
that
the

cylinder
numbers
are
faced

toward
the

same
direction

EM
28
q

Install

the

connecting
rod

cap

Tightening

torque

32
to
3
8

kg
m
23
I

to
7
S
ft
lb

10
Make

sure
that
end

play
of
the

connecting
rod

large

end
is

correct

Big
end

play

j

I

Fig
EM
77

Big
end

play
check

Big
end
end

play
0
2

to
0
3

0

0079
to
0
0118

11
Install
the
camshaft
and

crankshaft

sprockets

temporarily
for

adjustment
of
the
tooth

height
by

using

adjusting
washers

Height
difference

mm
in
less
than
O
S

0
0197

Adjusting
washer

thickness
mm

in
O
IS
0
006

Fig
EM
78

Adjusting
sprocket
tooth

height

ENGINE

SPECIFICATION

a
Valve
mechanism

Valve
clearance
Hot

Intake
mm
in

Exhaust
0
35
0
0138

0
35
0
0138

Valve
clearance
Cold

Intake

Exhaust
mm

in

0
25
0
0098

0
25
0
0098

Valve
head
diameter

mm
in

Intake
35
1
378

29
1
142
Exhaust

Valve
stem
diameter

mm
in

Intake
7

970
to
7
985

0
3138
to
0
3144

7

945
to
7

960
0
3128
to
0
3134

Exhaust

Valve

length
mm
in

Intake

Exhaust
102
35

to
102
65
4
030
to
4

041

102
35

to
102

65
4
030

to
4
041

Valve

spring
assembled

height
111m

kg
in
lb
8
5
0

3346

46
5
1
831

30
2
58
5
1
I99

129

38
7
23
9
1
524
52
7

5
0
Valve
lift

mm
in

Valve

spring
free

length
mm

in

Valve

spring
loaded

length
mm

kg
in
lb

Valve

spring
effective
turns

Valve

guide
length
111m

in
4
100
0

1614

26
4
1

031
1

53
2
087
Valve

spring
wire

diameter
mm

in

V
alve

sp
g
coil
diameter

inm
L

Valve

guide
height
from

head

surface
111m

in
18
0
709

Valve

guide
inner
diameter

mm
in

Intake
8
015

to
8
000
0
3156
to
0
3150

Exhaust
8
015
to
8
000
0
3156
to
0

3150

EM
34

ENGINE
MECHANICAL

Piston
diameter

standard
mm
in

Oversize

50
mm
in

Oversize
100
mm
in

Oversize
150

mm
in

Ellipse
difference
mm
in

Ring
groove
width

Top

2nd

Oil
mm
in

Piston

to
bore
clearance
mm
in

g
Piston

pin

Pin
diameter
mm
in

Pin

length
mm
in

Piston

pin
to

piston
clearance
mm

in

Interference
fit
of

piston
pin
to

connecting

rod

bushing
mm
in

h
Piston

ring

Ring
height

Top

2nd

Oil
mm
in

Side
clearance
mm
in

Top

2nd

Oil

Ring
gap
mm

in

Top

2nd

Oil

EM
37
72
967
to
73

017

2
8727
to
2

8747

73
467
to

73
517

2
8924

to
2
8944

73
967
to
74
017

2

9121
to
2
9140

74
467
to
74
517

2
9318
to
2

9337

0
01
to

0
03
0
0004
to
0

0012

2
0
0

0787

2

0
0
0787

4
0
0
1575

0
023
to
0
043

0
0009
to
0
0017

17
447
to
17
452
0
6869
to
0

6871

0
6869
to
0
6871

65
23

to
65
48
2
5681
to
2
5779

0
006

to
0

008
0

0002
to
0
0003

at
200e

680
F

0

017
to
0
034

0
0007
to
0
0013

2
0
0
0787

2
0
0
0787

4
0
0
1575

0
04
to

0
07
0
0016
to
0
0027

0
04
to

0
07
0
0016
to
0

0027

0
04
to
0

08
0

0016
to
0

0031

0
2

to
0
35

0
0079
to
0

0138

0
2

to
0
35

0
0079
to
0

0138

0
3

to
0
90
0

0118
to
0

0354

ENGINE

SPECIFICATIONS

Dimensions
of
radiator

core

Height
x
Width
x
Thickness
mm
in
330
x

344
x
32

13
0
x

13
5
x
1
26

Type
Corrugate
fin

type

Radiator
fin

spacing
mm
in
2

5
0
098

Radiator

capacity
K
cal
hoC
335

Water

capacity
with
heater
kg
em
lb

sq
in

t
US

qt
Imp
qt
0
9IO
l
13II4

4

9
5

I
4

X
Cap
working

pressure

SERVICE
JOURNAL
OR
BULLETIN
REFERENCE

DATE
JOURNAL

or

BULLETIN
No
PAGE
No
SUBJECT

CQ

4

ENGINE

ffi68
mmAq
14
5

mAq

3

way
connector

Cock

II
M

nam
e
Flow

guide
valve

This
valve
is
mounted
in

the

engine
compartment

f
tHks
A
F
and
C
are

engraved
in
the

body
of
the

valve
to

indicate
the
connection
of
the

vapor
vent
line

l
l
1

from
Fuel
tank

to
Crankcase

Fig
EF
3B
Flow

guide
valve

MAINTENANCE
AND

TESTING

Checking
of
fuel
tank

vapor
liquid

separator
and

vapor
vent
line

Check
all
hoses
and
fuel
tank
filler

cap

2
Disconnect
the

vapor
vent
line

connecting
flow

guide

valve
to

vapor
liquid
separator

Flow
guide
valve
3
Connect
a
J

way
connector
a
manometer
and
a
l
ul
k

or
an

equivalent
3

wav

change
cock

to
the
end
of
the

vent
line

4

Supply
fresh
air
into
the

vapor
vent
line

through
the

cock
little

by
little

until
the

pressure
becomes
368

romAq

14
5
in

Aq

5

Shut
the
cock

completely
and
leave

it
that

way

6

After
2
5
minutes
measure
the

height
uf
the

liquid
in

the
manometer

7
Variation
of

height
should
remain
within
25

mmAq

1
0
in

Aq

8
When
the

filler

cap
does
not
close

completely
the

height
should

drop
to
zero
in
a
short
time

9
I
f
the

height
docs
not

drop
to
zero

in
a
short
time

when
the
filler

cap
is
removed

it
is
because

of
the

stuffy

hose

Note
In
case
the
vent
line
is

stuffy
the

breathing
in
fuel

tank
is
not
thoroughly
made
thus

causing
insuf

ficient
delivery
of
fuel
to

engine
or

vapor
lock
It

must
therefore
be

repaired
or

replaced

1
m

eparator

1
Fuel
filler
cap

Y

XI

EC029

Fig
EF
39

Checking
evaporative
emission
control

system

EF
26

ENGINE

CLEANING
AND

INSPECTION

Clean

all
disassembled

parts
Be

careful
not

to
use

grease
dissolving
solvent

for

cleaning
of
the
over

running

clutch
armature

assembly
magnetic
switch

assembly
and

field
coils
since

solvent
dissolves

grease
packed
in
the

clutch
mechanism
and

damages
the
coils
or
insulators

Check
them
for

damage
or
excessive
wear

Replace

them
as

required

Terminal

Check
the
terminal

for

damage
and
wear
and

replace
if

necessary

Field
coil

Check
the

field
coil
for
insulation
If
the

coil
insulator

is

damaged
or
worn

replace

Testing
field
coil

for

continuity

Connect
test

probe
of
a
circuit
tester
or
a
resistance

counter
to
the
field
coil

positive
terminal
and

positive
brush

holder
If
the

tester
indicates

no

continuity
the
field
circuit
or

coil
is

open

O

Fig
EE
12

Cotltinuity
test

of
field
coil

Testing
field
coil
for

ground

Place
one

probe
of

a
circuit
tester
onto
the

yoke
and

the
othef
on
to
the
field
coil

positive
tenninal
If

resistance
is

read
the
field
coils
are

grounded
ol

I

Fig
EE
13
CTound
test

of
field
coil

Field
coil
test
for

short
ircuit

Un
solder
the

connected
section

of
each
coil

and
check

the

circuit
with
a
tester
in
the
same

manner
as

described
above

When
the
coil
is
defective

replace
the
coil

Brush
and
brush
lead
wire

Check
the
brush

contact
for

surface
condition
and

wear
When
the

brush
contact
is

loose

replace
the
brush

If
the
brush
is
worn
and

height
is
less

than
6
5

rom

0
2569
in

replace
it

Check
the
connection
of
the
lead

clip
and

lead
wire
for

conditions

Check
brush

holders
and

spring
clip
to

ensure
that

they

are
not
deformed
or
bent
and

properly
hold
brushes

against
the

commutator

If
the
brushes
Of
brush
holders
are

dirty
clean

Brush

spring
tension

Measure
the
brush

spring
tension

using
a

spring
scale
as

shown
in

Figure
EE
14
The

reading
should
be

approxi

mately
0
8

kg
I
76
Ib

EE
6

ENGINE

ElECTRICAL

SYSTEM

SPECIFICATIONS
AND
SERVICE

DATA

Specifications

Manual

Automatic

Transmission

Transmission

Make
and

type
HITACHI

SI14
87M
HITACHI
S114
156

Nominal

output
KW

1
0

1
0

System

voltage
V

12
12

Weight
kg
Qb
4

6
10
1
54
11

9

No

load

Terminal

voltage
V

12
12

Current
A

less
than
60
less

than
60

Revolution

rpm
more
than
7

000
more
than
6

000

Load

Terminal

voltage
V
6
3

6
3

Current
A

less
than
420
less

than
420

Torque
kg
m
ft

Ib

more
than
0

9
6
5

more
than
1
0

7
2

Shifting
type
of

pinion
gear

Magnetic
shift

Magnetic
shift

Number
of
teeth
on

pinion

gear
9

9

Service
data

S114

87M

S114
156

Brush

length

Standard

height
mm
in

16

0
630
14

0
551

Wear
limit

mm
in

6
5
0

256
4
5
0

177

Brush

spring
tension

Standard

pressure
kg
Qb
1
6

3
5

0
8
1
8

Commutator

Outer
diameter

Standard
OD

mm
in

33
1

299
33

I
299

Wear

limit
mm
in

2
0

079
2

0
079

Difference
between
maximum

and

minimum

diameters

Repair
limit
mm
in

0
4

0
0157
0
4
0

0157

Repair
accuracy
mm
in

0
05
0
0020

0
05
0

0020

Depth
of
mica

Repair
limit
mm
in

0
2

0

0079
0
2
0

0079

Repair
accuracy
mm
in

0
5

to
0
8
0

5
to
0
8

0

0197

to
0
0315
0
0197
to
0
0315

Clearance

between
arma
ture
shaft
and

bushing

mm
in

Repair
limit

0

2
0

0079
0
2

0
0079

Vi

Repair

accuracy
mm
in

0
03
to
0
1
0
03
to
0
1
1

r

0

0012
to
0
0039

0
0012
to
0
003Q

EE

11

CLUTCH

2

Measuring
and

adjusting
height
of

diaphragm
spring

I
Line

up
distance

piece
special
tool

ST20059001

on

clutch

assembly
base

plate
special
tool
ST20101O
0

ST20059001

I

ST20101000

Fig
CL
5

Base

plate
and
distance

piece

2

Place
the
clutch

assembly
on
the
distance

piece
and

set
the

clutch

assembly
on

the
base

plate
stationarily

Under
this
condition
the

distance

piece
is

placed
beneath

the

pressure
plate

3
Measure
the

diaphragm
spring
height
from
the

upper

surface
of
the
base

plate
with
vernier

caliper
depth
gauge

Height
of

diaphragm
spring
end
29
0

to
31
mm

1
142
to
1
220

in
at
diameter
62
mm
2
441
in

29
0
to
31

It
142
to
1

2201

6212
44
t

r
1

G
L
ir

I
LJIlW

I

y
y
x
l
i
0

BASE
PLATE

Unit

mm
in

Fig
CL
6

Measuring
height
of
dio

phTagm
spTing
4

Adjust
height
of

the

diaphragm
spring
by
the
use
of

diaphragm
spring
adjusting
wrench

special
tool

ST20
1
05000

if

required

Fig
CL
7

Adjusting
dio

phTagm
spring
height

Disc

assembly

If

the

facing
is

soiled
with

grease
or
oil
clean
off

with

gasoline
tetracWoride
and
dress
the

facing
with
a

wire
brush

Replace
the

facing
if

required

2

Check
the
disc
for
deflection
and

repair
or

replace
if

the

deflection
at
the
outer
circumference
of
the

facing

exceeds
the
following
value

Upper
limit
of
the
deflection

0
5

mm
0

0197
in

at

85
mm
3
3460
in

radius

Unit
mm
in

Fig
CL
8

Checking
disc

fOT
deflection

CL
3