1969 DATSUN B110 engine

lI
I

DATSUN
1200

RANGE
1971
1973

MAINTENANCE
REPAIR

BY
DRAKE
AUTOMOTIVE
EDITORS

Quick
Referencelodel

MAINTENANCE
TUNE
UP
5

STEERING
89

ENGINEERING
13
REAR
DRIVE

ELECTRICAL
SYSTEM
35
SUSPENSION
93

IGNITION
SYSTEM
43
CLUTCH
99

FUEL

SYSTEM
49
TRANSMISSION
103

COOLING
SYSTEM
63
BODY
WORK
111

BRAKES
67
SPECIFICATIONS
129

FRONT
SUSPENSION
83

The

purpose
of
this
manual
IS
to

provide
the
automobile
owner
and
mechanic
with

a
reference
source

with
which
he
can

perform
normal
service

operations

We
endeavor
to

lOcorporate
the

latest
manufacturing

design
changes
and
up
to
date

specifications
at

the
time

of
publication
While
every
effort
IS
made
to
attain
accuracy

the
Publisher
cannot
be
held

responsible
for

manufacturing
changes
typographical

errors
or

omiSSions

Upon

compIling
the

information
contained
herein
we
have
tried
to
be
brief
and

Simple
relvlng
on

the
combination
of

photographs
Illustrations
and
text
to

make
thIS
manual
a

useful
tool

DRAKE

PUBLISHERS
INC

361
PARK
AVENUE
SOUTH

NEW
YORK
NY
10016

able
of

Contents

MAINTENANCE
TUNE

UP

DIsassembly
32

InspectIOn
RepaIr
33

VALVE

CLEARANCES
6

AdJustmg
Regulator
33

ENGINE

OIL

6

Assembly
33

OIL
FILTER

7

COOLANT
7

COMPRESSION
7

ELECTRICAL
SYSTEM

BATTERY

8

IGNITION
TIMING

8
STARTER

36

DIstributor

Breaker
Pomt

9
Removal

37

Condenser

9

InstallatIOn
37

Spark

Plugs
9
Trouble

Shootmg
37

Carburetor

9

ALTERNATOR

36

Idle
LImIter

Cap

10

Removal

37

Dash

Pot
automatic
transmISSIOn

11
InstallatIOn

37

model

only

11
REGULATOR

39

Carburetor

Return

Sprmg

11

DeSCriptIOn
39

Fuel
Filter
11

Trouble

Shootmg
40

ENGINE

IGNITION
SYSTEM

DESCRIPTION
14

DISTRIBUTOR
44

REMOVAL
14

ConstructIOn

44

INSTALLATION
14

Checkmg
and

Adjustment
44

CLEANING
INSPECTION
14

SP
ARK
PLUGS

46

DISASSEMBL

Y
14

DeSCriptIOn
46

INSPECTION
REPAIR

18

InspectIOn
46

PreparatIOn
18

Cleamng
Regap
47

Cyltnder
Head

18

Valve

Assembly
18

Valve

Spnng
19

Valve
Rocker
Shaft

Rocker
Arm

19

FUEL

SYSTEM

Valve
LIfter
Push
Rod

20

Camshaft
Camshaft

Bearmg
20
FUEL
FILTER

50

Valve

Tlmmg
20

DESCRIPTION
50

Cyltnder
Block

21
REMOVAL

50

PIston
Piston
Pm

Plsto
LRmg
21

INSTALLATION

50

Connectmg
Rod

23
FUEL

PUMP

50

Crankshaft

24

DeSCriptIOn
50

Bushmg
Bearing
24

Testmg
51

Crankshaft

Sprocket
Removal

DIsassembly
52

Camshaft

Sprocket
25

InspectIOn
52

Flywheel
25

Assembly
52

ASSEMBL
Y

25

CARBURETOR

52

PrecautIOn

25

DeSCription
52

Cyltnder
Head

25

Adjustment
53

PIston

ConnectIng
Rod

26

Removal

58

Engme
26

DIsassembly
58

OIL
PUMP

32

Cleanmg

InspectIOn
59

Removal

Engme
m

vehicle
32

Assembly
InstallatIOn

60

I

fable
of
Contents

BODY
WORK
SPECIFICATIONS

I
HOOD
112

SERVICE
DATA
130

Removal
112

ENGINE
134

InstallatIOn
112

General
SpeCificatIOn
134

HOOD
LOCK
112

Tlghtemng
Torque
134

Removal
112

SpeCIficatIOn
135

Adjustment
112

Coohng
System
139

LubncatlOn
114

Fuel

System
140

TRUNK
LID
LOCK
116

Starter
142

Removal
116

Alternator
143

Adjustment
116

Regulator
144

TRUNK
LID
TORSION
BAR
116

Dlstnbutor
145

DOOR
CONSTRUCTION
117

IgnItIOn
Cot
145

WIRING
DIAGRAMS
118

CLUTCH
146

BULB
SPECIFICATIONS
120

NOTES
174

HEADLAMP
121

THERMOMETER
AND

FUEL
METER
122

OIL
PRESSURE
AND
IGNITION

WARNING
LAMPS
126

I

I

t

I

3

ainteDaDee

TUDe

up

VAL
VE
CLEARANCES

Valve
clearance

adjustment
should
be
made

while

engme
IS

stationary

To

adjust
proceed
as
follows

Start

engme
and
run
It
until
It
IS
heated
to

operatIng
temperature
or
at

least
more
than

17S
of

engIne
011

temperature
then

stop

engIne

Rotate
crankshaft
to

bnng
No
1

cylInder
In

top
dead

center
on

ItS

compressIOn
stroke

Remove
valve
rocker

cover
to

gaIn
access
to

valve

operatIng
mechamsm

Adjust
valve

clearance
at

follOWing
four

pOints
while

engIne
IS
still
hot

1

Exhaust
valve
of
No
1

cylinder

2
Intake
valve
of
No
1

cylinder

3
Intake

valve
of

No
2

cylinder

5
Exham
t
valve
of
No
3

cylInder

ote

Numbers
in

parenthesis
agree
with

those
10

accompanY1Og
sketch

AgaIn
rotate
crankshaft

one
turn

so
that
No

4

piston
IS
In

top
dead
center

on
ItS

com

pressIOn
stroke

Adjust
follOWIng
valves

4
Exhaust
valve
of
No

2

cylinder

6
Intake
valve
of
No
3

cylinder

7
Intake
valve
of
No
4

cylInder

8
Exhaust
valve
of
No
4

cylinder

Rg
1

AdJustmg
valve
clearance

8
Adjustment
should
ue
made
whIle

engIne
IS

hot
After
all
valves
have
been

adjusted

correctly
tighten
lock
nut

firmly
to
secure
the

adjustment

Checking
and

adjusting
drive
belt

Check
for
a
cracked

or

damaged
V
belt

Replace
If

defective

Adjust
the
belt
tenSIOn
If

necessary
Belt

deflectIOn
when
thumb

pressure
of
220
Ib
IS

applied
midway
between

pulleys
0394
to

o
590
In

ENGINE
OIL

011

capacity
of

engIne

IncludIng
011
filter

Capacity

MaXimum
VB
US

gal
Imp
gal

MInimum
5IB
US

gal
III

Imp
gal

Make
sure
that

engIne
011
IS
not
detenorated

With

cooling
water

or

gasolIne
DraIn
and

refill
the
011
lf

necessary

Notes

a
A

m1lky
011
indlcates

presence
of

cooling
water

Valve
clearance

Hot
Intake

0014

In

Exhaust

Fig
2

AdJustmg
dnve
belt
tension

aintenIDce
une

up

Find
the
cause
for

necessary
corrective

action

b
Oil
with

extremely
low

viscosity
in

dicates
dllutton
with

gasoline

Check
011
level
If
found
below
L
mark
refill

to
H
mark
on

gauge

OIL
FILTER

The
011
filter

IS
of

a

cartndge
type

Check
for
011
leaks

through
gasketed
flange
If

any

leakage
IS
found

retIghten
shghtly
If

nece

sary
replaLe
filter
as

an

assembly

When

mstalhng
an
011
filter

tIghten
by
hand

Note
Do
not

overtighten
011
fIlter

or
oil

leakage
may
result

I

I
Fig
3

Checking
engine
011
level

Oc
OF

I
0
121

20141

30
21

401401

5015BI

I

EGOQl

I
10
20

Fig
4

Protection
concentration
COOLANT

L
L
C

IS

al
ethylene
glycol
base

product
con

tammg
chemical
mhlbltors
to

protect
the

coohng
system
from

rustmg
and
corrosIOn

The

L
I
C
does
not
con
tam

any
glycerme

ethyl
or

methyl
alcohol
It
wIll
not

evaporate

or
bOll

away
and
can
be

used
wIth
either

high

or
low

temperature
thermostat
It
flows

freely

transfers
heat

effiCiently
and
will
not

clog
the

passages
m

the

coohng
system
The
L
L
C

must
not
be
mIxed
wIth
other

products
ThiS

coolant
can
be
used

throughout
the
seasons
of

the

year

Whenever

any
coolant
IS

changed
the

coohng

system
should
be
flushed
and

refilled
wIth
a

new
coolant

Check
the
level

COMPRESSION

Compression
pressure
test

Note
To
test

cylinder
compression

remove
all

spark
plugs
and
hold

tester
fit

Percent
BOllIng
pomt

concen
09

kg
cm2
Freeze

tra
lion
Sea
level

coolmg
sys

protectIon

tern

pressure

30

2210F
2550F
50f

50

2280
F
2610F
31oF

ETO
104

Fig
5

Testing
compressIon
pressure

7

aiDtenaDce
TUDe

up

ting
tightly
m

spark

plug
hole

of
a

cylin

der

The
tester
is
used
to
determme
whether

cylinder
can
hold

compression
or

whether

there
IS
excessive

leakage
past

rings
etc

Test

compressIOn
wIth

engme
warm
all

spark

plugs
removed
and
throttle
and
choke
valve

opened
No

cyhnder
compressIOn
should
be

less
than
80
of

highest
cyhnder
s
Excessive

variatIOn
between

cyhnders
accompamed
by

low

speed
missing
of
the

cyllndel
usually
10

dlcates

a
valve
not

properly
seating
or
a

blOken

pIston
ring
Low

preSsures
even

though
umform

may
indIcate

worn

rings

ThIs

may
be

accompamed
by
excessive
011

consumptIOn

Test
Conclusion

If

one
or
more

cyhnders
read

low

Inject
about

one

tablespoon
of

engine
011

on

top
of
the

plstons
In

low

readmg
cyhnders
through

spark

plug
hole

Repeat
compressIOn
check
on

these

cy
II
nders

If

compressIOn
Improves

conSiderably
piston

rings
are
defectIve

If

compressIOn
does
not

Improve
valves

are

stIcking
or

seatIng
Improperly

If
two

adjacent
cyhnders
mdlcate

low
com

pressIOn
and

mjectmg
011

on

pistons
does
not

Increase

compreSSIOn
the
cause

may
be
a

cylInder
head

gasket
leak
between

the

cyhn

ders

Engine
011
and
coolant
In

cylInder
could

result
from
this

problem

CompressIOn
pressure

178
to
206

pSI
at
350

rpm

BATIERY

Check

electrolyte
level
10
each

battery
cell

Unscrew

each
filler

cap
and

Inspect
flUId

level
If
flUId

level
IS
low
add

dIstilled
water

to

bring
level

up
to

approximately
03937
to

07874
In
above

plates
Do
not

overfill

Mea
ure

P
illL
gravlty
of

pattery
el

c

trolyte

8
Clean

top
of

battery
and
terminals
With
a

solutIOn
of

baking
soda
and
water
Rinse
off

and

dry
WIth

compressed
atr
The

top
of
bat

tery
must
be
clean
to

prevent
current

leakage

between

terminals
and
from

poSItive
termlndl

to
hold
down

clamp

In
additIOn
to

current

leakage
prolonged
ac

cumulatIon
of
aCId
and
dirt

on
the

top
of
bat

tery
may
cause

bhstenng
of
the
material

covering
connector

straps
and
corrOSIOn
of

straps
After

tightening
terminals
coat
them

With

petrolatum
vasehnel
to

protect
them

from

corrosIOn

IGNITION
TIMING

Check

spark

plugs
and
dIstributor
breaker

pOints
for
conditIon

I

I

Thoroughly
wipe
off
dIrt
and
dust
from

tlmmg

j

marks

on
crank

pulley
and
front

cover

Warm

up
engine

suffiClently

PermIssIble
Full

charge
value

value
at
68OF

Fngld
chmates
Over
1
22

128

TropIcal
chmates
Over
I

18
123

Other
clunates
Over
1

20
126

j

J

I

ET002

Flg
S

Gheckmg
the

speCific
gravity
of

baltery
elec

trolyte

f

l

aiDteDaDce
UDe

up

Install
a

timing
lIght
on
No
1

cyhnder
spark

plug
WIre
and
Install
a
tachometer

Set

Idhng
ipeed
to

approximately
800
rpm

Check

19mtlOn
tImmg
If
It

IS
50BTDC
Before

Top
of
Dead
Center

by
the
use
of

tlmmg

hght

If

necessary
adjust
It
as
follows

Loosen
iet

screw
to
such
an
extent
that

dlstnbutor
can
be
moved

by
hand

AdJu
it
IgmtlOn
tIming
to
50BTDC

Lock
dlstnbutor
set
screw
and
make
sure

that
tlmmg
IS
correct

IgnitIOn
tImmg
degreel
50
B
T
DC

Distributor
Breaker
Point

Check
dlstnbutor
breaker

pomts
for
abnormal

pItting
and
wear

Replace
If

necessary
Make

wre

they
are
In
correct

ahgnment
for
full
con

tact
and
that

pOint
dwell
and

gap
are
correct

Clean
and

apply
dlstnbutor

grease
to
cam
and

WIck

Note
Do
not

apply
grease
excessively

Dl
tI
IbutOl

POint

gap
0
018
to
0
022
In

Dwell

angle
49
to

55

degrees

Condenser

Clean
outlet
of
condenser
lead
WIre
and
check

for
loose
set
screw

RetIghten
If

necessary

Check
condenber

capacIty
With
a

capacity

meter

Fig
7

Checking
Igmllon
timing
Condenser
msulatlOn
resistance

may
be
also

checked

usmg
a
tester

by
adjusting
ItS

range

to
measure

large
resIstance
value
When
con

denser
IS
normal
the
tester

pomter
swmgs

largely
and

rapidly
and

moves

gradually
back

to
the
Infimte
SIde
When
the

pomter
does
not

stay
still
or
It

pomts
zero
m
reSIstance

replacement
IS

necessary

Condenser

capacIty

022

J
F
MIcro
Farad

Condenser
InsulatIOn
resIstance

5
Mn

Mega
ohms

Spark
Plugs

Remove
and
clean

plugs
In
a
sand
blast

cleaner

Inspect
each

spark
plug
Make
iure

that

they
are
of
the

specified
heat

range
In

ipect
msulator
for
cracks
and

chIps
Check

both
center
and

ground
electrodes
If

they
are

excessIVely
worn

replace
WIth
new

spark

plugs
File
center
electrode
flat
Set
the

gap
to

0031
to
0035
m

USIng
the

proper
adjustIng

tool

Tighten
plugs
to
11

0
to

150
ft
Ib

torque

CARBURETOR

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
cahbrated

Warm

up
the

engme
suffiCiently

ContInue

engIne
operatIOn
for
one
mmute

un

der

ldhng
speed

I

i

I

I

I

I

I

I

ETOQ4

Fig
8
Checking
dlstnbutor

POint

gap

IQgiDe

DESCRIPTION

The
A12

engme
IS
a
715

cu
m
In
I

me
over

head
valve
four

cyltnder
engine
with

2874
m

bore

and
2
765
m
stroke
It
feature

full

opened
wedge
shaped
combustIOn
cham

ber
alummum
heads
and

fully
balanced

5

bearmg
crankshaft
to
turn
out
smooth

dependable
power

REMOVAL

Removmg
hood

Open
the
hood

remove
four
mstallatlOn
bolts

and
remove
the
hood

Disconnect
the

battery
cable
from
the
ter

mmal

Removmg
radIator
Dram
water
from
the
radiator
disconnect
two

radIator
hoses

remove
four
radIator
m

stallatlOn
bolts
and

remove
the
radiator

Removmg
cables
and
hoses

Disconnect
the

followmg
cables
hoses
and

wires

High
voltage
cable
between

Igmtton
COlI
and

distributor

Cable
to
the
thermal
transmitter

Cable
to
the
011

pressure
sW1tch

Cable
to
the

primary
Side
of
the
distributor

Cable
to
the

startmg
motor

Fuel
hose

Cable
to
the

alternator

Heater
hose
for
model
With
heater

only

I

Fig
13
Sectional
view
of
A

12
Engine

It