torque DATSUN B110 1973 Service Owners Manual

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

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
MECHANICAL

o

Match
mark

Key
groove

Fig
EM
78
1

Setting
chain

12

Install
the
timing
chain
and

camshaft

sprocket

Camshaft

sprocket

tightening
torque

4

0
to
4
8

kg
m
29

to
35
ft
lb

Fig
EM

78
2
Chain
tensioner
installation

Fig
EM
7B
Cam

sprocket
gear
installation

Notes
a
Make

sure
that
the

camshaft

sprocket
dowel

hole
and
crankshaft

sprocket
key
are
in
line
and

both
the
dowel
hole
and

key
are
located
down

ward
b
Set
the

timing
chain

making
its

mating
marks

meet
with
those
of
crankshaft
sprocket
and

camshaft

sprocket
at
the

right
hand
side

13
Install
the

timing
chain
tensioner
and

tighten
the

tensioner
bolts
to
a

torque
of
0
6
to
0
8

kg
m
4
3

to
5

8

ft
lb

Check
the
tensioner

spindle
projection

Wear
limit

Spindle
projection

mm
in
15
0

591

Fig
EM
79

Checking
the
tension

spindle
projection

14
Install
the
crankshaft
oil

thrower

15

Install
the

new
oil
seal
to
the
front
cover
The

front
cover
oil
seal
should
be

replaced
when
the
front

cover
is

disassembled

16

Install
the

front
cover

applying
the

sealing
agent
to

both
surfaces
of
the

gasket

Tightening
torque

0
5
to
0
7

kg
m
3
6
to
5
1

ft
lb

EM
29

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

ENGINE
MECHANICAL

20
Install
the

push
rods

21
Install
the
rocker
shaft

assembly
and

tighten
the

rocker
shaft
bracket
bolts
to
the

specified
torque

Tightening
torque

2
0
to
2
5

kg
m
15

to
18

ft
Ib

Note

Tightening

operation
should
be
made

gradually
in

separating
two
or
three

stages
and

outwardly
from

the
center
bracket

Fig
EM
B
RockeT

shaft
installation

22
Install
the

intake
and
exhaust
manifolds

Tightening
torque

0
9

to
I
4

kg
m
6
5
to
10

ft
lb

Fig
EM
B4

Installation

of
intake
and

exhaust

manifolds

23

Adjust
valve
clearance
with

the

specified
di

mensions
Fig
EM
85
Valve
clearance

adjustment

Intake
at
cold

rom
in
0
35
0
0138

Exhaust

at
cold

rom

in
0
35
0
0138

24
Install
the
rocker
cover
and
carburetor

assembly

25

Install
the

water

pump
and
thermostat

Tightening
torque

0

9
to
I
4

kg
m

6
5
to
10
ft
lb

26
Install
the
crankshaft

pulley

Tighten
the

crank

pulley
bolt
to
the

specified

torque

Tightening

torque

15
to
16

kg
m

109
to
116

ft
lb

Tightening
tOI
q
e
15

JP
16

g
m

10l
to
11
ft
Ib

Fig
EM
B6

CTankshaft
pulky
installation

EM
31

ENGINE

MECHANICAL

SERVICE
DATA
AND
SPECIFICATIONS

GENERAL
SPECIFICATION

Cylinder
arrangement
4
in
line

Displacement
cc
cu
in

mm
in
1
171
71
5

73

x
70
2
874

x
2
756

Bore
and
stroke

Valve

arrangemen
t
Over
head
valve

Firing
order
I
3
4
2

Engine
idle

rpm
800
Manual
transmission

650in
D

Automatic
transmission

Compression
ratio
8
5

Oil

pressure
Hot

at
2
000

rpm

kgfcm2
Ibfsq
in
3
0

to
3
5
43
to

50

TIGHTENING
TORQUE

Unit

kg
m

ft
lb

Cylinder
head
bolts

Flywheel
bolts
5
5
to
6
0
40

to
43

3
2
to
3

8
23

to
28

6
5

to
7
5
47
to
54

5
0

to
6

0
36
to

43

4
0

to
4
8

29
to
35

0
4
to
0
6
2

9
to
4
3

l
l
to
I
7
8
0

to
12

0

9

to
I
4
6
5

to
10

15

to
16
108
to
116
Connecting
rod
nuts

Main

bearing
cap
bolts

Camshaft

gear
bolts

Oil

pan
bolts

Oil

pump
bolts

Oil
strainer

bolts

Crank

pulley
bolts

EM
33

ENGINE
LUBRICATION
SYSTEM

Inspection
and

repair

Clean
the
disassembled

parts
with

cleaning
solvent
and

inspect
for
defects

Inspect
the
drive
rotor
shaft
for

excessive
wear
and

scores
and
check

the
following
clearances

Side

clearance
between

Quter
and

inner
rotors
0
12
mm
0

0047
in
or
below

Tip
clearance
0
04
to
0
I2mm

0
0016

to
0
0047
in

Clearance
between
outer

rotor
and

body

0
15
to
0

21
rom
0
0059
to
0
0083
in

Adjusting
regulator

Insert
valve
in
the

body
and
measure
the
distance
A

from
the
valve
end
to
the

spring
contacting
face
inside
the

plug
See

Figure
EL
4

2
The
distance
from
the

spring
contacting
face
inside

the
valve
to
the
valve
end
amounts
to
18
mm

0
7086
in

3
On

inspecting
the
above

dimensions
determine
the

thickness
of

adjusting
shim

Shim
thickness
A
18

mm
0

7086
in

spring

length
at

compression
load
3
67

kg
8
091bs

Assembly

Assembling
the
oil

pump
is
the

reverse
order
of

disassembly

Note
3

Be
sure
no
traces
of

grinding
chips
lint
or
dirt

remain

b
Be

sure
gasket
is
not
turned

up
and
discon

tinued

OIL

PRESSURE

REGULATOR

VALVE

The
oil

pressure
regulator
valve
is
not

adjustable
At

the

released

position
the

valve

permits
oil

passing
through

a

passage
on
the

pump
cover
to
the
inlet

side
of
the

pump

Measure
the

regulator
valve

spring
dimension

to
ensure

that
the

spring
is

provided
with
the
correct
tension
e

Q

@

I

I
Adjusting
shim

2

Valve

spring

13
I
RegulatoT
valve

Fig
EL
4

RegulatoT
valve

Tightening
torque

Oil

pump
cover

bolts

kg
m
ft
lb
2
0
1
45

Oil

pump
mounting

bolts
kg
m

ft
lb
13
to

1
5

9
4to
II

Cap
nut

regulator

valve

kg
m
ft

lb
4
0
to
5
0

29
to
36

Specifications

Oil

pressure
at

idling

kgfcm2
Ibfsq
in
0
9
to
1
2

13
to
17

Regulator
valve

spirng

Free

length
mm
in

Pressured

length
mm
in
4349
l71

30
3
I
19

Regulator
valve

opening

pressure
kgfcm2
lbfsq
in
3
8
to
4
2

54
to
60

OIL

FILTER

The

oil
filter
is
of
a

cartridge
type
The
oil
filter
is

installed

or
removed

using
special
tool

The
filter
element
and
the
filter

body
are
caulked

together
I
t

must
be

replaced
with
a

new
one
as
an

assembly

When

installing
the

oil
filter
fasten
it
to
the
oil

pump

EL
3

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

When

the
contacts

stationary
and

movable
are
dused

the
motor

operates
to
crank
the

engine
and
the
series

coil
of
the
solenoid
is
cut
out
The

magnetic
force
of
the

shunt
coil
is

sufficient
to
hold
the

pinion
in
mesh
after

shifting
the

system

When
the

engine
is

operated
and
the

ignition
switch
is

set
to
ON
the
series
coil

demagnetizes
the
shunt

coil
and
the
return

spring
actuates
the

plunger
to
return

to
the

original
position
Consequently
the

motor

stops

More

positive
meshing
and
demeshing
of
the

pinion
and

the

ring
gear
teeth

are
secured

by
means
of
the
over

running
clutch
The

over

running
clutch
employs
a
shift

lever
to

slide
the

pinion
along
the

armature
shaft
so
as
to

engage
or

disengage
with
the

ring
gear
teeth
The

over

running
clutch
is

designed
to
transmit

driving
torque

from
the

motor
armature
to
the

ring
gear
and

to

permit

the

pinion
over

running
the

armature
when
the

engine
is

started
ENGINE

ijJ

1

t

2

3

4

5

6

7
Stationary
contact

Serie
coil

Ignition
switch

Solenoid

Shunt
coil

Plunger

Return

spring
8

Shift
lever

9
Drive

pinion

10

Ring
gear

11
Pinion
sleeve

spring

12

Armature

13
Movable

contactor

14

Battery

Fig
EE
5

Starting
motor
circuit

CONSTRUCTION

1

2

3

4

5

6

7

8

9

10

11

12

13
j
@

Gear
case

Du
t
cover

Shift
lever

Dust
cover

Shift
lever

pin

Magnetic
switch

Center
bracket

Armature

Thrust
washer

Metal

Stopper
washer

Stopper
l

lip

Pinion

stopper
@

@

o

@
i
1I
@
@
@

14

15

t6

17
Pinion

Over

running
clutch

Field
coil

Yoke
18
B
rush
cover

19

Brush

20
Rear
cover

21

Through
bolt

Fig
EE
6

Exploded
view

of
staTting
motoT
SI14
B7M

Disconnect
the

black
and

yellow
wire
from
the

magnetic
switch

terminal
and

black

battery
cable
from

the

battery
terminal
REMOVAL

I
Disconnect
the

ballery
ground
cable

EE
4

ENGINE
ElECTRICAL
SYSTEM

shunt
coil
is

satisfactory
if
the

plunger
is
attracted

continuously

s

SERIES
COIL

S

SHUNT
COIL

Fig
EE
21

Inspecting
series
and
shunt
coils

When

measuring
the
L

dimension

depress
the

plunger

against
a
wall
and
measure
the

length
L

between

the

adjusting
nut
and

magnetic
switch
cover
as

shown
in

Figure
EE

22
and

adjust
if

necessary

II
L

T

Plunger
L
dimension

31
7
to
32
3
mm
1
248

to
1
272
in

I

11
I
Adjusting
nut

121
Plunger

adjuster

Fig
BE
22

Adjusting
L
dimension

REASSEMBLY

Reassemble
the

starting
motor
in

reverse

sequence
of

disassembly

When

assembling
be
sure
to

apply
grease
to
the

armature
shaft

spline
and

apply
oil
to
the
rear

cover
and

gear
case

bearing
metals
and

pinion
slightly
TEST

Performance

test

The

starting
motor
should
be

subjected
to
no
load

and
lock

torque
tests
whenever

it
has
been
overhauled

to
ensure
that
it

operates
correctly
when
installed
on
the

engine
The

starting
motor
should
also
be

subjected
to

these
tests
when
the

cause
of

abnormal

operation
is

to
be

determined
These
tests
are

summarized
as

follows

No

load
test

Connect
the

starting
motor
in
series
with

the

specified

battery
12
volts

and
an

ammeter

capable
of
indi

cating
1

000

amperes

Specified
current
draw

and
revolution
in
these

tests
are

shown

in

specifications
and
service
data

STARTER

MOTOR

s
SWITCH

o
BATTERY

EtJ

VOLTMETER
AMMETER

EE026

Fig
EE
2J
No
load
test

Torque
test

Torque
testing
equipment
should
be
used

to
measure

the

torque
the
motor
will

develop
A

high
current

carrying
variable
resistance

should
be
connected
to
the

circuit
so
that
the

specified
voltage
at
the

starting

motor

may
be
obtained
since

a
small
variation
in
the

voltage
will

produce
a

marked
difference
in
the

torque

development

Specified
power
voltage
and

torque
are
shown
in

Figure
EE
24

EE
9