1973 DATSUN B110 oil type

BODY
ElECTRICAL

When
the

ignition
switch
is
set
to
ON
the

ignition

wa

rning
circuit
is

closed
and
current
flows
flows
from
the

ignition
switch
to
the

warning
lamp
bulb

and

ground

through
the

regulator
When
the

engine
is
started
and
the

generator
comes
into
operation
the

generator
output

current

opposes
the
current
flowing
from
the

warning

lamp
in

effect
it
breaks
the

warning
circuit

ground

connection
and
the

lamp
goes
out

l

r

hffi
u

z
Ignition
switch

I
Q
6

I
0

c

M
1
E

8

ca
i

L

g

PI
lot
c

P

I

j

co

rt
0

relay
E
0

5

y
y
1

N
N
3

Alternator

Regulator

Fig
BE

41
Circuit

of
ignition
warning
system

HAND
BRAKE
WARNING
LAMP

This

lamp
functions
both
hand
brake

warning
larnp
and

BULB
SPECIFICATIONS
service
brake
line

pressure
differential
warning
lamp

When
a

difference
between
front
and

rear
brake
line

pressures
reaches
the
rated

range
13
to
17

kgfcm2
185

to

242
lb

sq
in
the

ground
circuit
for
the

warning
lamp

is

closed
and
the

warning
lamp
lights

IGNITION
SWITCH

WARNING

LAMP

L
E

WARNING

SWITCH

1
SERVICE

BRAKE
LINE

PRESSU
R
E

DIFFERENTIAL

WARNING

J
SWITCH

Fig
BE

42
Circuit

diagram
for
brake

warning

system

tern
Specifications

Square

type
meter
Round

type
meter

Meter
illumination

larnp
VoW
12
3
4
2
12

1
7
3

Turn

signal
pilot
lamp
VoW
12
3
4
2
12
1
7
2

Head

lamp
main
high
beam

VoW
12
3
4

I
12

17
1

pilot
lamp

Ignition
warning
lamp
VoW
123
4

I
12
17
1

Oil

pressure
warning
lamp
VoW
12
3
4

1
12
1
7

1

Hand
brake

warning
lamp
VoW
12
1
7
1

for
U
S
A

CANADA

Clock
illumination

lamp
VoW
123
4
I
12
17
2

Figure
encircled
in

parentheses
indicates
number
of
bulbs
used

BE
21

GENERAL

INFORMATION

RECOMMENDED
LUBRICANT
SPECI

FICATIONS

Item

Gasoline

engine
oil

o
Transmission

and

steering

Differential

Automatic

TIM
fluid

Multipurpose
grease

Brake

and
clutch
fluid

Antifreeze
coolant

i
Specifications

SAE
Classification

SO
or
SE

API
G
L
4

API
GL
5

Type
DEXRON

NLGI2

DOT
3

Long
Life
Coolant

GI
6
Remarks

Furthermore
refer
to

SAE
recommended

viscosity

table
See

Page
GI
5

Lithium

soap
base

EMISSION
CONTROL
AND

TUNE
UP

Capacity

Maximum
3
3
L
X

US

gal
y

Imp
gal

2
3
L
US

gal
f

Imp
gal
Minimum

Make
sure
that

engine
oil
is

not
deteriorated
with

cooling
water
or

gasoline
Drain

and
refill
the
oil

if

necessary

Notes

a
A

milky
oil
indicates
the

presence
of

cooling

water

Find
the
cause
for

necessary
corrective
action

b
Oil
with

extremely
low

viscosity
indicates

dilution
with

gasoline

2
Check

oil
level
If
found
below
L

mark
refill
to

H
mark

on

gauge

Fig
ET
3

Checking

engine
oil
level

Replacing
oil
filter

The
oil
ftIter
is
of
a

cartridge
type
The
oil
filter

can
be

removed

using
oil
ftIter
wrench
STl9320000
Check
for
oil
leaks

through
gasketed

flange
If

any

leakage
is
found

retighten
slightly
If

necessary

replace

filter
as
an

assembly

2
When

installing
an
oil
filter

tighten

by
hand

Note
Do
not

overtighten
oil
filter
or
oil

leakage
way

result

Changing
engine
coolant
L

L
C

Nissan

long
life
coolant

LLC
is
an

ethylene
glycol
base

product

containing

chemical
inhibitors
to

protect
the

cooling
system
from

rusting
and
corrosion

The
L
L
C

does
not
contain

any

glycerine
ethyl
or

methyl
alcohol
It
will
not

evaporate

or
boil

away
and

can
be
used
with
either

high
or
low

temperature
thermostat
It

flows

freely
transfers
heat

efficiently
and
will
not

clog
the

passages
in
the

cooling

system
The
LL

C
must
not
be

mixed
with
other

products
This
coolant
can
be
used

throughout
tlie

seasons
of
the

year

Whenever

any
coolant
is

changed
the

cooling
system

should
be
flushed
and

refilled
with
a
new

coolant

Check
the
level
J

Percent
Boiling
point

0
9

kgfcm2
Freeze

concen

tration
Sea
level

cooling
sys
protection

tern

pressure

30
1060

C
I

240C
15OC

221OF
255OF
5OF

50
IUY
C
1270C
35
C

2280
F
2610F
3IOF

DC
OF

0

321

10
14

20141

50
58
I

I

I

I

1

I

I

1
30
1
22

40

401

40
10
30
50
20

EGOOl

Fig
ET
4
Protection

concentration

ET
3

ENGINE

CYLINDER
BLOCK

The

cylinder
block
in

a
mono
block

special
casting

structure

adopts
five

bearing

support
system

The
A
12

Engine
is

provided
with

baffle

plate
and
steel

net
to

reduce
oil

consumption
the
steel
net

scoops
oil

j
y

r

0

Q

0

T

Fig
EM
2

Cylinder
block

Fig
EM
3

Cylinder
block

CRANKSHAFT

The
crankshaft
is
made
of

special
forged
steel
and

provided
with

a
high

capacity
balance

weight
The

crankshaft

improves
engine
quietness
and

durability
t

high
speed
operation

The
main

bearing
are
lubricated
from
oil
holes
which

intersect
the
main
oil

gallery
in

parallel
with
the

cylinder

bores
v

Fig
EM
4

Crankshaft

PISTON
AND
CONNECTING
ROD

The

newly
designed
lightweight
piston
is

of
cast

aluminum

slipper
skirt

type

The
A
12

Engine
uses
concave
head

pistons
The

piston

pin
is
of
a

special
steel
hollow

type
and
is
connected
to

the

piston
in

a
full

floating
fit
and

to
the

connecting
rod

in

press
fit

The

connecting
rod
is

made
of

forged
steeL
Full

pressure
lubrication
is

directed
to
the

connecting
rods

through
drilled
oil

passages
from
the

adjacent
main

bearing

journal

Oil
holes

on
the

connecting
rod

journals
are
designed

so

that
oil
is

supplied
to

give
maximum
lubrication

just

before
full

bearing
load
is

applied

J

oO

o

e

Fig
EM
5
Piston
and

connecting
rod

CYLINDER
HEAD

The

cylinder
head
is

made
of

light
and

strong

aluminum

alloy
with

good
cooling
efficiency
A

special

aluminum
bronze
valve
seat
is
used
on
the
intake
valve

while

a

special
cast
valve
seat
is
installed
on
the
exhaust

valve
These

parts
are
hot

press
fitted

EM
2

ENGINE
MECHANICAL

Fig
EM
6

Cylinder
head

CAMSHAFT

Camshaft
is
made
of

special
cast
iron

and

supported
by

five
cannshaft

bearings

1

1

f

r

f

r

I

Fig
EM

Camshaft

Camshaft

bearings
are

lubricated
from
oil

holes
which

intersect
the
main

oil

gallery
of

the

cylinder
block

Concentric

passages
are
drilled
in

the
front
and
rear

parts
of
the

camshaft
for

supplying
oil
to
each

cam
lobe

through
an

oil
hole

drilled
in
the
base

circle
of
each
lobe

Lubricant
is

supplied
to
the
front

oil

gallery
from
2nd

camshaft

bearing
and
to
the

rear
oil

gallery
from
4th

camshaft

bearing

From
the
center
camshaft

bearing
lubricant
is

supplied

to
the
valve
rocker
shaft

through
the
center
locker
shaft

bracket

VALVE
MECHANISM

The
valve

system
has

push
rod

type
rocker
arm
which

uses
the

single
type
valve

springs
a

Fig
EM
8

Vol
mechanism

CAMSHAFT
DRIVE

The
camshaft
is

driven
with
a
double
row

roller
chain

which

is
driven

by
the
crankshaft

Tension

of
the

chain
is
controlled

by
the
chain

tensioner

which
is

operated
with

spring
and
oil

pressure

The
rubber

shoe

type
tensioner

insulates
vibration
of

the
chain
and
controls
tension

of
the

chain

Fig
EM
9

Comshdft
drive
chain

MANIFOLD

The
intake

manifold
is
a
mono

block
aluminum
cast

The

exhaust
manifold
is

made
of

a
cast
iron
The

semi

dual
exhaust

system
which
combines
exhaust

gas

flow
at
the

point
of
exhaust

pipe
connection

improves

exhausting
efficiency

The
exhaust
manifold
has

a
heat
control

valve
which

assures
stable

and
smooth

engine

running
after

starting

during
cold

season
The
manifold

is
connected
to
the

exhaust

pipe
by

flanges
which

completely
eliminate

exhaust

leaking

EM
3

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

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
lUBRICATION
SYSTEM

LUBRICATION
SYSTEM

CONTENTS

DESCRIPTION

LUBRICATION
CIRCUIT

OIL
PUMP

Description

Removal
EL
1

EL
2

EL
2

EL
2

EL
2
Disassembly

I

nspection
and
repair

OIL
PRESSURE
REGULATOR
VALVE

OIL
FILTER
EL
2

EL
3

EL
3

EL
3

Fig
EL
l
Lubrication
circuit

DESCRIPTION

The

lubricating
system
is
of
a

pressure
feed

type
and

consists
of

highly
efficient

components
suited
for

high
speed
running
and

output

EL
1