service DATSUN B110 1969 Service Repair Manual

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

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

Bn
in1l

If

camshaft

bearmg
clearance
IS
exceSS1ve

replace
the
camshaft

bearmgs
with
service

parts
When
valve
contact
surface
of
the
valve

rocker

arm
IS
worn

excessively
m

step
repair

by
means
of

a
valve

grinder
or

replace

Grinding
allowance
for
valve
contact
surface

of
the
valve
rocker

arm
IS
0
0197
In

or
less

Valve
Lifter
and
Push
Rod

Check
the
valve
hfter
for

wear
seizure
and

bevel

edge
contact
and

repair
or

replace
as

reqUIred

Measure
clearance
between
the
hfter
hole
on

the

cyhnder
block
and
valve
hfter
and

replace
the
valve
hfter
when
clearance
ex

ceeds
the
hmlt

Check
the

push
rod
for

bendmg
and

damage

and

repair
or

replace
as

reqUIred

Camshaft
and
Camshaft

Bearing

Measure

mner
dIameter
of
the
camshaft

bearing
and
outer
diameter
of
the
camshaft

Journal

Standard
MaxlIDum

m
m

Valve
hfter

hfter
hole
o
0059

o
0008
to
0
0020

clearance

limit
0151010
00059
m

Standard
003
to
0071010

00012
to
00027
m

Fig
34
Camshaft

bearing
check

20
Valve

Timing

If
the
camshaft
has
no

apparent
damage

although
some
valve
troubles
have
been
detec

Standard
Wear

hm1t

1st

00015luOO024

2nd

00011
to
0

0020

Ot

3rd

clearance

00016
to
00025
o
0059

In

4th

00011
to
0

0020

5th

00015
toO
0024

1st

1
7257
to
I

7261

Inner
2nd

1
7050

to
1

7060

diameter
of

camshaft

3rd

beanng
1

6865
to
1

6868

m

4th

I

6663
to
I

6667

5th

1

6243
to
1

6247

TDC

DIRECTION

OF

ROTATION

EXHAUST
INTAKE

BDC

Fig
35
Valve

timing
diagram

Square

rmg
m
bore

by
pushing
It
mto

pos1t1on

wIth
the
head

piston
Measure

gap
between

ends
of

rmg
with
feeler

gauge

Gap
should
be
as
hsted
above

Note
a
When
the

piston
ring
only
is
to
be

replaced
without
the

cylinder
bore

bemg

corrected
measure

gap
at
the
bottom
of

the

cylinder
where
the
wear
is
minor

b
Overs1ze

piston
rings
are
avaIlable
for

service
50
100
150

oversize

Measure
the

piston
pm
hole
m
relation
to
the

outer
dIameter
of
the

pm
If
wear
exceeds
the

hmlt

replace
such

piston
pm
together
with

the

pIston
on
whIch
It
IS
mstalled

PI

ton

pill
dldmeter

06869
to
06871

PIston

pill
length

25681
to
5779

Piston

pm
hole
dta

meter
06874
to
0
6871

PIston

pm
to

piston

clearance
00002

to
OOUr
j

Interference
fit

of

piston

pm
to

connectmg
rod
o
0008

EM133

FIg
43
Connecting
rod

ahgner
Bngine

Flttmg
of

piston
pm

Determme
the

fittmg
of
the

piston
pm
mto

the

piston

pm
hole
to
such

an
extent
that
1t

can
be

finger
pressed
at

room
temperature

ThIS

piston
pm
rnust
be

tight
press
fitted
mto

the

connectmg
rod

Connecting
Rod

If

a

connectmg
rod
shows

any
scratch
or
score

mark

or
IS

pitted
on
both
Sides
of
the
thrust

face
and
the

large
end
correct

or

replace
It

Check
for
bend
or
torsIOn

usmg
a

connectmg

rod

ahgner
If
bend
or
torsIOn
exceeds
the

hmlt
correct
or

replace
the

connectmg
rod

When

replacing
the

connectmg
rod
select
the

rod
so

that

weight
difference
between
new
and

old
rods
IS
wlthm
0
18
oz
m
umt

weIght

Standard
MaXimum

Connectmg
rod
bend

bend

or

tOrsIon

per
100
mm
o

0020

or
3
94

m

length
o

00391
torsIOn

o
0028

I

Standard
MaXImum

BIg
end

play

00079
to
0
0118

I
U0157

FIg
44

Big
end

play
check

23

ruel

Sptem

FUEL
FILTER
DESCRIPTION

The
fuel
filter
IS
of

a

cartndge
type
It
uses

paper
element

as
traIner

element
which
can

be
checked
for
condItIOn
from
outsIde

ThIS

filter
cannot
be
cleaned

Replace
the
filter
at

the

peclfied
servICe
Interval
01
If
It
becomes

clogged
or
I
estncted

REMOVAL

DIsconnect
Inlet
and
outlet
fuel
hnes
from

fuel
filter
and

remove
fuel
filter

if

EF005

Fig
87
Sectional
view
of

cartridge
type
fuel
filter
Note
Before

disconnecting
fuel
lines
use

a
container
to
receive
the

remaining
fuel

In
lines

INSTALLATION

InstallatIOn

IS
the

reverse
of
removal

FUEL
PUMP

Description

The
fuel

pump
transfers

gasoline
from
the

tank
to
the
carburetor
In

suffiCient

quantity

to

meet

engine
requIrements
at

any

speed
or

load

The
fuel

pump
IS
of
the

diaphragm
type

The
fuel

pump
conSIsts
of

a

body
rocker
arm

and
link

assembly
fuel

diaphragm
fuel

diaphragm

spnng
seal
Inlet
and

outlet

valves

The
fuel

diaphragm
consists
of

specially

treated
rubber
whIch
IS
not
affected

by

gasohne
held

together
WIth
two
metal
diSCS

and
a

pull
rod

t

Fig
88
SchematiC
view
of
fuel

pump
R

0

Brakes

Adjusting
shIm
thickness
for
selectIOn

o

0197
In

00315
In

o

0630
In

Note
When

adjusting
be
sure
to
use
ad

Jusbng
sh1ms

having
same
th1ckness
for

upper
and
lower

brake
master

cylinder

IOstallahon
bolts

Upon

completIOn
of

adjusting
shIm

adjust

ment

tighten
the

stopper
down
to
such

an
ex

tent
that

heIght
of
the

pedal
head
IS

5
57

pO
0787

In
and

tighten
the
lock
nut

becurely

Free
travel
of

the
brake

pedal
IS
0
197
to

0591
tn
and
the

stroke
IS
4

72
In

Hand

Brake

Turn

the

turn
buckle

properly
and

adjust

hand

brake
lever

operatmg
stroke

correctly
so

that

operatmg
stroke
IS
3

091
m

16
notches
at

operatIng
force

of
243
to
331
Ib

Upon
com

pletIOn
of

adjustment
be
sure

to

tIghten
the

lock
nut

Upon

completIOn
of
the

adjustment
release

the
hand

brake
lever
and
make

sure
that
the

rear
wheels

are
not

braked

Normal
btroke

3091
In
6

notches

Fig
144

AdJusting
turn
buckle
LImIted
stroke

535
tn
10
notches

The
term
Stroke

means

heIght
from
the

standard

posItIon
8
7
In
above

the
hand
brake

lever
fulcrum

Note

Readjust
hand
brake

stroke
when
it

reaches

the
hmited
stroke
5

35
in

10

notches

BLEEDING

HYDRAULIC

SYSTEM

BleedIng
the

hydrauhc
brake

system
deserves

much
attentIOn

as
It

IS
an
e
senttal
factor
for

regular
servICe
brake

operatIon

As
a
matter

of
fact

durmg
the
brake

serVice

air
IS

lIkely
to

creep
Into
the
CirCUIt

WIth
the

result
that
the
flUId
actIon

IS
altered

and
the

brake

pedal
becomes

spongy
at
the

travel
end

Bleedmg
should
be
carned
out
at
first

WIth

the
master

cylmder
then
from
the

longest

lIne
from
the
master

cylmder
and
then
fimsh

up
With
the
shortest

Note

Always
clear

away
any
dirt
around

master

cylinder
reservoir

cover
before

removing
cover
for

any
reason
Never

depress
pedal
while

brake
drums

are

removed
unless
bleeder

valve
IS

open

Top
up
the

reservOIr
master

cyltnder
With

flUId
of
the

recommended

type

Fig
145

Connecting
Vinyl
hose

to
air
bleeder
rear

79

Brakes

Excessive

pedal

travel

All
b
rakes

drag

One
brake
drdgs

Unbalanced
brdkes

Excessive

pedal

pressure
required

poor
brak
es

Brake
chatter

squeak
or

squeal
System
hds
not
been
bled

Improperly
adjusted
clearance

FlUid
level
In

master

cylinder
IS
too
low

Thermal

expansIOn
of
drums
due
to

Qver

hea

lmg

lnsuffiuent
shoe
to
drum
clearance

Weak
shoe
return

springs

Brake
shoe
return
no

free
travel

Seized
master

cylinder
piston

Loose
or

damaged
wheel

bedfmgs

Weak
broken
or
unhooked
brake
shoe

return

spnngs

InsuffiCient
clearance
between
brake
shoe

and
drum

Grease
or
011
on

hnmgs

Seized

piston
In
wheel

cylInder

Tires

Improperly
mtl
lted

Loose
wheel

bearing

Front

suspension
faulty

Grease
mud
or
w
tter
on

Lmmgs

Full
area
of

Immgs
not

Lontaclmg
drums

SLOTed
brake
drums

Dust
on
drums
or
oIl

soLled

Immgs

Weak

shoe
return

springs

Drum
out
of
round

Worn

Itmngs
Bleed
the

system

Adjust
shoe
to
drum
clearance

Full

up
wIth

specIfied
brake
flUId

Bleed
the

system
If

requIred

Allow
drums
to

cool
off
Check
brake
shoe

lImngs
and
drums

Replace
damaged
parts

Adjust
cledrance

Replace
the

spnngs

Adjust
pedal
height

SerVJce
the
master

cyhnder

repla
e
the

pISton
and
bleed
the

syslem

Adjust
Of

replace
wheel

beanngs

Replace
spnng

Adjust
brakes

Clean
brake
mechamsm

repldce
hnmg
and

correct
cause
of

grease
or
011

getllng
on

Lmmg

SerVIce
the
wheel

cyhnder
and
bleed
the

system

Inflate
tires
to
correct

pressure

Adjust
wheel
bearing

Thoroughly
check
and

adlust
all

front
sus

pensIOn
components

Remove
drums
Clean
and

dry
hrongs
or

replace

Replace
shoes

Reface
drums
and
mstall
new

IImngs

Remove

and
clean
drums

thoroughly

ElImmale

oIl
leak

Check

spnngs
and

replace
as

required

Turn
drums
on
lathe

Replace
hrungs

II

Transmission

AUTOMATIC
TRANSMISSION

The
model
3N71B

automatic
transmiSSIOn
IS

a

fully
automatic
Unit

consisting

pnmanly
of

3
element

hydrauhc
torque
converter
and
two

planetary
gear
sets
Two

multiple
disc
clut

ches
a

multiple
disc

brake
a
band

brake
and

a
one

way

sprag
clutch

provide
the
fnctlon

elements

reqUired
to
obtain
the
deSired

fun

tlon
of

the
two

planetary
gear
sets

The
two

planetary
gear
sets

give
three
for

ward

ratIOs
and
one
reverse

Changing
of
the

gear
ratIOs
IS

fully
automatic

In
relation
to

vehicle

speed
and

engine
torque
Input

Vehicle

speed
and

engine
mamfold

vacuum

Signals
are

constantly
fed
to
the
transmiSSIOn

to

prOVide
the

proper

gear
ratIO

for
maximum

effiCiency
and

performance
at
all
throttle

openmgs

The
Model

3N71B
has
SIX
selector

poSitIOns

P
R
N

D
2
1

p
Park

pOSitIOn

posItively
locks
the
out

put
shaft
to

the
transmiSSIOn

case

by
means
of

a

lockmg

pawl
to

prevent
the
vehicle
from

rollmg
either

directIOn

ThiS

pOSitIOn
should
be
selected
whenever
the

dnver

leaves
the
vehicle

The

engme
may
be
started
m
Park

pOSition

R
Reverse

range
enables

the
vehicle

to

be

operated
m
a
reverse
direction

N
Neutral

pOSitIOn
enables
the

engine
to

be
started
and

run
Without

dnvIngthe
vehicle

0
Drive

range
IS
used

for
all
normal

driVing
conditions
Dnve

range
has
three

gear

ratios
from
the

startmg
ratIO
to
direct
dnve

2
2

range
prOVides
performance
for

dnvIng
onshppery
surfaces

2

range
can
also

be

used
for

engine

brakmg

2

range
can

be
selected
at

any
vehicle

speed

and

prevents
the
transmlsslOn

from

shifting

out
of
second

gear

108
Rg
162
Idenllflcatlon

number

I
1

range
can
be

selected
at

any
vehicle

speed
and
the
transmiSSIOn
will
shift
to
second

gear
and

remain
m
second
until
vehicle

speed

IS
reduced
to

approximately
25
to
31
MPH

1

range
posItion
prevents
the
transmiSSIOn

from

shlftmg
out

of
low

gear
ThiS

IS

par

tlcularly
benefiCial
for

mamtamIng
maximum

engine
brakmg
when

continUOUS
low

gear

operation
IS
deSirable

The

torque
converter

assembly
IS

of
welded

constructIOn
and
can
not
be
dlssassembled
for

service

FlUld
Recommendatwn

Use
automatic
transmiSSIOn
flUid

haVing

DEXRON
IdentificatIOns

only
m
the
3N71B

automatic
transmiSSIOn

denttficatwn
Number

Stamped

posttwn

The

plate
attached
to
the

rIght
hand
Side
of

transmission
case
as
shown
m

Figure
161

denttficatwn
of
number

arrangements

See

Page
109

RECOMMENDATIONS

Due
to
the

compleXity
of

setting
up
a

disassembled
transmissIOn
as
well

as
the

special
tools

necessary
It

IS
recommended

thaL
nternal

epalrs
be
left
to

a

fully

eqUip

ped
shop

i
II
Ii
I
I
The
thermome

ter
does
not

operate
accU

rately
Fuel
meter

I
II
i
Fuel
meter
does

not
operate
Defective
thermometer

DefectIve
thermal
transmItter

Improper
cable
contact

DefeCtlve
tank
umt

Defective
fuel
meter
The
thermometer
IS
serVIceable

when
a
100
a
reSIstance
IS
ap

plied
to
the
thermal
transmItter

yeUowlwlute
cable
the
cable
IS

grounded
and
the
thermometer

Uldlcates
approxunately
SOoC

1220F

When
the
thermometer
IS
normal

through
the
above
UlSpeCtlOn

The
thermometer
19d1cates
a

temperature
slightly
lower
than

the
actual
temperature

The
pOUlter

tank
umt

grounded
deflects
when
the

yellow
cable
IS

The
pOUlter
does
not
deflect

through
the
above
mspectlon
Replace
If
defective
1
1
0

a
iii

Replace
the
thermal

transmitter
Check
the
cable
from

the
thermometer
to

the
thermal
trans

nutter
for
cable
bemg

about
to
break
poor

contact
and
faulty

groundmg
and
repalI

as
reqUired

Replace
wut
tile
tank

Replace
the
fuel
me

ter
With
a
new
one

Specifications

SERVICE
DATA
AND
SPECIFICATIONS

1

vpc
RCl
n

ulatlllg
bdll

type

ClrrJtm

Ieertng
wheel
dldl1lCler

Od

JpJuty

iteenng
angle
IImer
wheel

outer
heel

PIdY
Ieermg
wheel

tJJ
d
ud

thl
kness
of

worm

beaTIng
shulls

hllttal

turnmg
torque
of

column

assembly

le
Hance
uf

ddJustmg
SLrew

to

sedor
shaft

Length
of
side
rod

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