lock DATSUN B110 1973 Service Repair Manual

ENGINE

Pig
EM
62

Bearing
clearance
check

Measuring
connecting
rod

bearing
clearance

Measure

connecting
rod

bearing
clearance
in
the

same

manner

Tightening

torque

3
2
to
3

8

kg
m
23

to
28
ft
Ib

Bearing
oil
clearance

Standard
Wear
limit

Main

bearing

clearance

rom
in
0
020

to
0
062

0

0008
to
0
0024
0
1

0
0039

Connecting
rod

bearing

clearance

mm
in
0
020

to
0
050

0
0008
to

0
0020
0
1

0
0039

2
If
clearance
exceeds
the

specified
value

replace

bearing
with
an

undersize

bearing
and

grind
out
the

crankshaft

journal
adequately
Fig
EM
63

Bearing
clearance
check

Fitting
crankshaft
bearings

I
Set

the
bushings
on
the
main

bearing
cap
and
the

cylinder
block

bearing
recess
and

tighten
the

cap
bolts
to

the

specified
torque

Tightening
torque

5
0
to
5
3

kg
m
36
to
38
ft
lb

2
Loosen
the

cap
bolt
on

one
side
and
measure

clearance
between

the

cap
and

cylinder
block
side

n
n

u

ii
Bearing

6
Weight

EM143

Fig
EM
64

Bearing
crush
check

EM
22

ENGINE
MECHANICAL

3
Ascertain
that
the

clearance
is
within
double
the

figure
listed
below

If
it
is

not

replace
the

bearing

4

Handle
the

connecting
rod

bearing
in
the

same

manner

Connecting
rod

cap
tightening
torque

3
2

to
3
8

kg
m
23

to
28
ft
lb

Bearing
crush

All
main

bearing

mm
in
o
to

0
03
0
to

0
0012

All

connecting
rod

bearing
mm

in
0
Ql5
to
0
040

0

0006
to
0
0016

Main

bearing
undersize

Bearing
size

Bearing
top
Crank

journal

1
100

thickness
mm
in

diameter
mm
in

STD
1
835
to
1
822

49
951
to
49
964

0
0722
to
0
0717
1

9666
to
1
9671

25
1

960
to
1
947

49701
to
49
714

undersize
0

0772
to
0

0767
1

9567
to

1
9572

50
2
085
to
2
072

49451
to
49

464

undersize
0
0821
to
0

0816
1

9469
to
1

9474

75
2
210
to
2
197

49
201
to

49
214

undersize
0
0870
to
0
0865

1
9370

to
1

9376

100
2
335
to

2
322
48
951
to

48
964

undersize
0

0919
to
0

0914
1
9272
to
1
9277
Connecting
rod

bearing
undersize

Bearing
top
Crank

pin

Bearing
size

thickness
mm
in
diameter

mm
in

1
500
to

1
508
44
961

to
44
974

0
0591
to
0
0594
1
8489

to
I

7706

8

1
540

to
1
548

44

881
to
44
894

undersize
0
0606
to
0

0609
1
7670
to
I
7675
STD

12
1
560

to
1
568
44
841

to
44
854

undersize
0
0614
to
0

0617
I
7654
to
I
7659

25
1
625
to
1

633
44
711

to
44
724

undersize
0
0640

to
0

0643
1
7603
to
I
7608

50
I
750
to

1
758
44
461
to
44
474

undersize
0
0689
to
0

0692
1
7504
to
I
7509

75
1
875
to
1
883
44
211
to
44
224

undersize

0
0738
to
0
0741
1
7406
to
I
7411

100
2
000
to
2
008
43
961
to
43
974

undersize
0
0787
to
0
0791
1
7307
to
I

7313

Fitting
camshaft

bushings

When
clearance
exceeds
the
specified
value
remove

all
camshaft

bushings
by

using
the

special
tool
and

replace

with
service

parts

Notes
3
Coincide
the

bearing
oil
hole
with
the
oil
hole

of
the

cylinder
block
side

b
After

replacing
all
bushings
correct
the
bear

ings
by
line

boring

c

I
nstall
the

taper
plug
into
the

cylinder
block

applying
the

sealing
agent

Fig
EM
65

Replacing
camshaft
bushings

EM
23

ENGINE

ST130300
1

EM156

Fig
EM
69

Piston

pin
installation

Fig
EM
70
Piston
and

connecting
rod

assembly

Notes
8
Piston

pin
is

press
fitted
to
the

connecting
rod

tightly
and

fitting
force
is
from
1
to
3
tons
When

fitting
piston
pin
special
tool
must
be
used

When

pressing
the
piston
pin
into
the
connecting

rod

apply
engine
oil
to
the

pin
and
the
small
end

of
the
connecting
rod

b

Arrange
the

connecting
rod
so
that
the
oil

jet

of
the

connecting
rod

large
end
is
directed
toward

the

right
side
of

the

cylinder
block

2

Installing
piston
rings

Install
the

top
and
second

fings
in

right
positions
so

that

the
marks
are

faced

upward

3

Fix

bearings
on
the

connecting
rod
and
the

con

necting
rod

cap

Note
Clean
the
back
side
of
the

bearing
carefully
ASSEMBLING
ENGINE

Set
the

cylinder
block
on
the

working
stand
with
the

engine
bottom

faced

upside

2

Install
the
valve
lifters

Install
the

camshaft
and

retain

by
the

camshaft
locate

plate
Locate

plate
tighten

ing

torque
is
0
4

to
0
5

kg
m
2
9
to
3

6
ft
lb

Note
Set
the
locate

plate
so
as
the
LOWER
mark

comes
to
the

engine
bottom
side

Set
the
main

bearings
on
their

positions
on
the

cylinder

block

Fig
EM
71

Installing
camshaft
ocate

plate

Fig
E1U
7
2
lvlajn
betlrj

lg
cap

Notes
a
The
center

bearing
No
3

bearing
is
a

flanged

type
for
thrust
force

b
Two
inner

bearings
No
2
and
No
4
are
of
the

same

type

c
The
front

bearing
No
1
is
the

same
type
a

the
rear

bearing
No
5

d
All

bearings
except
for
No
1

bearing
are

interchangeable
between

upper
and
lower
bear

ings

EM
26

ENGINE
MECHANICAL

3

Apply
engine
oil

to
the
main

bearing
surfaces
on

both
sides
of
the

cylinder
block
and

cap

Install
the
crankshaft

4
Install
the
main

bearing
cap
and

tighten
the

bolts

with

specified
torque

Tightening

torque

5
0

to
6

0

kg
m
36

to
43

ft
lb

Notes
a

Arrange
the

parts
so
that
the
arrow

mark
on

the

bearing
cap
is
faced
toward
the
front
of
the

engine

b
Prior
to

tightening
the

bearing
cap
bolts

place

the

bearing
cap
at
a

proper
position
by

shifting

the
crankshaft
in
the

axial
direction

c

Tighten
the

bearing
cap
bolts

gradually
in

separating
two
to

three

stages
and

outwardly
from

the
center
beari

ng

d
After

securing
the

bearing
cap
bolts
ascertain

that
the
crankshaft

can
be

easily
rotated

5
Make
sure

that
the
crankshaft
end

play
is

correct

Crankshaft
end

play

0
05

to
0
15

rom
0
0020
to

0
0059

in

Fig
EM
73

Crankshaft
end

play
check

EM
27
Fig
EM
73
t

Applying
adhesive

6
Install
the
rear
oil
seal

7
Install
the

flywheel
securely

using
the

lock
washers

and

tighten
the
bolts
with

specified

torque

Tightening
torque

6
5
to
7
5

kg
m
47

to
54

ft
lb

Iii

Fig
EM
74

Flywheel
installation

8
Rotate
the

engine
a

quarter
turn
and
install
the

piston
rod

assembly

ENGINE

17
Install
the
oil
strainer
and
the
oil

pan
using
the

gasket

Apply
sealing
agent
on

hath
surfaces
of
the

gasket

especially
on
the
front
and
rear

portions
of

the
oil

pan
Oil

pan
tightening
torque

0
4

to
0
6

kg
m

I
9
to
4
3

ft

lbJ

I
R
I
nvcrt
the

engine
and

install
the

cylinder
head

assembly
and

gasket

Cylinder
head

gasket
with
O

ring

Cylinder

block

side

Steel

sheet
D

QCO
0
0

i

O
1

nrr
11

I

Li
I
I

Vo
o
f

C
C
r
c

Sealing
agent
not

required

Cylinder

head

side

Joint

sheet

Remarks
Install
without

applying
sealing
agent

Be
careful
not
to

damage
the

push
rod
side

because

this
side
has

previously
been

provided

with

sealing
agent

Fig
EM
80

Cy
linder
head
installatjo
1

Note

Apply
sealing
agent
overall
the

cylinder
block

surface
Place
the

gasket
on
it
and

apply
sealing

agent
to
the

gasket
top

19

Tighten
the

cylinder
head
bolts
to
the

specified

torque

The

cylinder
head
uses
two

types
of
installation
bolt

one
is
for
the
center

right
side
and
the
other
is
for
all

other

positions
The

bolt
for
the

center

right
side
has
a
O

ring

j
I

Y

J
CYlinder
head

I
I
Cvlinderheadgasket

I
Cylinder
block

O

ring
To
be

inserted
into
hole
in

cylinder
block

T

mark
on
its
head

Tightening
torque

5
5
to
6
0

kg
m
40
to

43
ft
lb

fI
J
D

Bolt
number
Diameter
Identification
mark

CD
7
9
to
8
1

1

0
3111
to
0

3189
T
mark

Except
for

CD
8
87

to
9
03

o
not
marked

0
3492
to
0
3555

Fig
EM
8t
Head
bolt

segment

l

Fig
EM
82

Tightening
sequenc

EM
3D

LUBRICATION
CIRCUIT

Oil
drawn

from
the
oil

pan
through
the
inlet

screen
and

tube

to
the
inlet
side
of
the
oil

pump
is
delivered

by
th

oil

pump
through
the
outlet

portion
of
the
oil

pump
and

the
oil

gallery
to
the
inlet

side
of
the
full
flow
oil

filter

and
to
the

main
oil

gallery

The
main
oil

gallery

supplies
oil
to
the

crankshaft
main

bearings
and

drilled

passages
in
the
crankshaft
and

thus

oil
is

fed

directly
from
the

main

bearings
to
the

connecting
rod

bearings

Oil

injected
from

jet
holes

on

connecting
rods

lubri

cates
the

cylinder
walls
and

pistion
pins

The
oil

distributed
from
the
main

gallery
enters
the

chain

teosioner
and
the

pad
is
held

against
the

chain

by

oil

pressure
and

spring
The
oil

also
lubricates
the

timing

chain

through
the

jet
hole

located

near
the
chain

Furthermore

lubricant
is

supplied
to
each
camshaft

bearing
through
each
crankshaft
main

bearing
and

finally

to
the
011

gallery
in
the
rocker

shaft

through
the
center

camshaft

bearing

The
rocker

arm
and
valve

are
lubricated

by
the
oil

through
the
oil

gallery
in
the

rockershaft

To
this

oil

gallery
lubricant

is

supplied
through
the

center

camshaft

bearing
as
shown

in

Figure
EL
I

OIL
PUMP

Description

The
oil

pump
assembly
is
installed
on
the
bottom
of

the

cylinder
block
and
driven

by
the
distributor

drive

shaft

assembly
The
oil

pump
is
of

a
rotor

type
The
oil

pressure
is

regulated
by
the

regulator
valve
camshaft

Removal

Engine
in
vehicle

Drain

engine
oil

2
Remove
the
frunt

stabilizer

3
Remove
the

splash
shield

board

4
Detach
the
oil

pump
body
together
with
drive

gear

spindle
ENGINE

Fig
EL
2
Removal

of
oil

pump

Disassembly

Prior
to

disassembling
check
to

determine
that
the

pump
is

defective

Take

out
a
total
of
2
bolts

securing
the

pump
cover

to
the

pump
body
The

outer
and
inner

rotors
and
drive

shaft
can

then
be

disassembled

2

Applying
a
suitable
wrench
or

spanner
loosen
off
the

regulator
valve

Note
a
When

placing
the
valve
in
a
vise
use
extreme

care
not
to
distort
the

pump
body
and
cover
in
the

jaws

b
Do

not

pull
out
the
drive
shaft

pin

securing
the

driven
shaft
and
inner
rotor
The
shaft
is

press

fitted
to
the
rotor
with
the

pin
calked

n

Trochoid

Fig
EL
Oil

pump

EL
2

COOLING
SYSTEM

COOLING
SYSTEM

CONTENTS

DESCRIPTION

WATER
PUMP

Removal

THERMOSTAT

Removal

Inspection
CO
1

CO
2

CO
2

CO
2

CO
2

CO
2

DESCRIPTION

The

cooling
system
is

of
a

closed

pressure
type
with

high
cooling
capability
Cooling
water

flowing
through

resistance
free
water

passages
in
the

cylinder
head
and

cylinder
block
is

maintained
at

adequate

temperature
Installation

RADIATOR

Removal

Inspection

SPECIFICATIONS
CO
3

CO
3

CO
3

CO
3

CO
4

range
at
aU
times

by
means

of
an

ample
capacity
water

pump
of
a

corrugated
fm

type
radiator
with

high
cooling

efficiency
and
of
a

pellet
type
thermostat

I

I

I
0

Jrl
oA

Fig
COol

Cooling
system

CO
I

ENGINE

INSPECTION

Check

the

upper
and
lower
bodies
for
cracks

2

Check
the
valve

assembly
for

wear
of
the
valve
and

valve

spring
Blow
the
valve

assembly
by
breath
to

examine
its

function

3

Check
the

diaphragm
for
small
holes
cracks

and

wear

4

Check
the
rocker

arm
for
wear
at
the

portion
in

contact
with

the
camshaft

5

Check
the
rocker
arm

pin
for
wear
since
a
worn

pin

may
cause
oil

leakage

6

Check
all
other

components
for

any
abnormalities

and

replace
with
new

parts
as

required
ASSEMBLY

Assembly
is
done
in
reverse
order
of

disassembly
For

reassembly
and

reinstallation
the

following
matters

should
be
noted

Use
new

gasket

2
Lubricate
the
rocker
arm

link
rocker
arm

pin
and

lever

pin
before
installation

3
To

test
the
function

position
the

fuel

pump
assem

bly
about
I

meter
3
3
ft
above
fuel
level
with
a

pipe

connecting
the
fuel

pump
and
the
fuel

strainer
and

operate
the
rocker

afm

by
hand
If
fuel
is
drawn

up
soon

after
the
rocker
arm
is
released

the
function
of
the

pump

is

satisfactory

CARBURETOR

CONTENTS

DESCRIPTION

STRUCTURE
AND
OPERATION
EF

8

EF

9

EF
10

EF
11

EF
12

EF
12

EF
12

EF
14

EF
14

EF
15

EF
15

EF
16

EF

16
Primary
system

Secondary
system

Anti

dieseling
solenoid
valve

Float

system

Electric
automatic
choke

ADJUSTMENT

Idling
adjustment

Fuel
level

adjustment

Fast
idle

adjustment

Vacuum
break

adjustment

Choke
un
loader

adjustment

DESCRIPTION

The
carburetors
are

of
a

downdraft

type
which
is

designed
and
built

to
increase

power
and

fuel

economy
as
Bi
metal

setting

Adjustment
of

interlock

opening
of

primary
and

secondary
throttle
valves

Dash

pot
adjustment

MAJOR
SERVICE
OPERATIONS

Removal

Disassembly

Cleaning
and

inspection

Assembly
and
installation

JETS

SERVICE
DATA
AND
SPECIFICATIONS

TROUBLE
DIAGNOSES
AND

CORRECTIONS
EF
17

EF
18

EF
18

EF
19

EF
19

EF
19

EF
21

EF
22

EF
22

EF
22

EF
22

well
as
to
reduce
the

emission
of
exhaust

gases

These
carburetors

present
several
distinct
features
of

importance
to
the

car
owners

A

summary
of
features
is
as
follows

EF
8

ENGINE

Step
system

The
construction
of
this

system
corresponds
to

the

idling
and
slow
system
of
the

primary
system

This

system
aims
at
the

power

filling
up
of
the

gap

when
fuel

supply
is

transferred
from
the

primary

system
to
the

secondary

system
The

step
port
is

located

near
the

auxiliary
valve
in
its

fully
closed

state

Anti

uesetmg

solenoid

Ignition
switch

OFF
ON

I

L
i1

7

I
Anti

dieseling
solenoid

valve

When
the

ignition
key
is
turn

to
OFF

current
will

not
flow

through
the

solenoid
and
the
slow

system
fuel

passage
is

closed
to
shut
down

the

engine
without

dieseling

If
anti

dieseling
solenoid
is
found

defective

replace
the

solenoid
as
an

assembled
llnit

Fuse

Ignition
switch

T
Baitery

717

Fig
EF
20
Schematic

drawing
of
anti

dieseling
solenoid

Removal
and

installation
of
anti
dieseling
solenoid

Removal

Solenoid
is

cemented
at

factory
Use

special
tool

STl9
I

50000
to

remove
a

solenoid

When

this
tool
is

not
effective
use
a

pair
of

pliers
to

loosen

body
out
of

position

Installation

I

Before

installing
a
solenoid
it
is
essential

to
clean
all

threaded

parts
of

carburetor
and
solenoid

Supply

screws
in
holes

and
turn
them
in

two
or
three

pitches

2

First
without

disturbing
the

above

setting
coat

all

exposed
threads
with
adhensive
the
Stud
Lock
of

LOCTlTE
or

equivalent

Then

torque
screws
to
35
to
55

kg
cm
30
to
48

in
lb

using
a

special
tool
STl9150000

After

installing
anti

dieseling
solenoid
leave

the

carburetor

move
than
12
hours
without

operation

3
Mter

replacement
is

over
start

engine
and
check
to

be

sure
that
fuel
is
not

leaking
and
that
anti

dieseling
solenoid
is
in

good
condition
Notes
a
Do
not
allow
adhesive

getting
on
valve

Failure
to
follow
this
caution
would
result
in

improper
valve

performance
or

clogged
fuel

passage

b

In

installing
valve
use
caution
not
to
hold

body
directly
Instead

use
special
tool

tight

ening
nuts

as

required

Float

system

Fuel
fed
from
the

fuel

pump
flows

through
the
filter

and
needle
valve
into
the
float
chamber
A
constant
fuel

level
is
maintained

by
the
float
and

needle
valve

As
ventilation
within
the
float

chamber
is
of
an

air
vent

method

Electric
automatic
choke

An
electric
heater

warms
a

bimetal
interconnected
to

the
choke
valve
and
controls
the

position
of
choke
valve

and
throttle
valve
in
accordance
with
the

elapse
of
time

or

the
warm

up
condition
of

engine

The
construction
and
function
of
each

part
of
this

automatic

choke
are

as
follows
See

Figure
EF
21

EF
12

ENGINE

AD
JUSTMENT

Idling
adjustment

Idle

mixture

adjustment
requires
the

use
of
a
CO

meter
When

preparing
to

adjust
idle
mixture
it
is

essential
to
have
the

meter

thoroughly
warmed
and

calibrated

Warm

up
the

engine
sufficiently

2
Continue

engine
operation
for
one
minute
under

idling
speed

3

Adjust
throttle

adjusting
screw
so
that

engine
speed

is
800

rpm
in
N

position
for

automatic
transmission

4
Check

ignition

timing
if

necessary
adjust
it
to

the

specifications

Ignition
timing
50
800

rpm

5

Adjust
idle

adjusting
screw
so
that
ca

percentage
is

1
5
t
0
5

6

Repeat
the

adjustments
as

described
in

steps
3

and

5

above
so
that
ca

percentage
is
1
5

to
5
at
800

rpm

Cautions
a
On
automatic
transmission

equipped

model
check
must
be
done
in
the
0

position
Be
sure
to

apply
parking
brake
and

to
lock
both
front
and

rear
wheels
with
wheel

chocks

b
Hold
brake

pedal
while

stepping
down

on

accelerator

pedal
Otherwise
car
will
rush
out

dangerously

7
On
automatic
transmission

equipped
model
make

sure
that
the

adjustment
has
been
made

with
the
selector

lever
in
N

position

And
then
check
the

specifications
with

the
lever
in

D

position
Insure
that
CO

percent
and
idle

speed
are
as

follows

Idle

rpm
650

ca

percentage

with

lever
in
D

position
15
to
5

If

necessary
adjust
by

progressively
turning
throttle

adjusting
screw
and
idle

adjusting
screw
until
correct

adjustments
are

made

Notes
a
Do
not

attempt
to
screw
down
the
id
Ie

adjusting
screw

completely
to
avoid

damage
to
the

EF
14
tip
which
will
tend
to
cause
malfunctions

b
After
idle

adjustment
has
been
made
shift
the

lever
to
N
or
p

position
for
automatic

transmission

c

Remove
wheel
chocks
before

starting
the
car

Throttle

adjusting

screw

2
Idle

adjust

ing
crew

3
Idle
limiter

cap

4

Stopp
r

Fig
EF
23
Throttle

adjusting
screw
and
idle

adjusting

screw

Idle
limiter

cap

Do
not
remove
this

idle
limiter

cap
unless

necessary

If
this
unit
is

removed
it
is

necessary
to

fe

adjust
it
at

the
time

of
installation
To

adjust
proceed
as
follows

1
Make
sure
that
the

percentage
of

CO
contents

satisfies
the

specifications

2

Install
idle
limiter

cap
in

position
making
sure
that

the

adjusting
screw

can
further
turn
3

8
rotation
in
the

Ca
RICH
direction

j
j
Carburetor

stopper

o

u

o

i

r
3
8
rotation

0

0

Idle
limiter

cap

0
0

CO
lean

Fig
EF
24

Setting
idle
limite

cap