1977 DATSUN PICK-UP check oil

2
Turn
crankshaft
until
No
I

pis

ton
is
at
T
D
C

on
its

compression

stroke

3
Make

sure
thai
camshaft
sprock

et
location
notch
and

plate
oblong

groove
are

aligned
at
their
correct

positions

4

When

installing
cylinder
head

make
sure

that
all
valves
are

apart

from
heads
of

pistons

5
Do

not
rotate
crankshaft
and

camshaft

separately
or
valves
will
hit

heads
of

pistons

6

Temporarily
tighten
two
bolts

CD

V
sJiown

in
Fig

re
EM
96

Tightening
torque

2

kg
m

14
ft
b

15
Install
crankshaft

sprocket
and

oil

pump
drive

gear
and
fit
oil

thrower

Note
Make
sure
lhat

maling
marks
of

crankshaft

sprocket
face
10
Cront

16
Install

timing
chain

Noles

a
Make

sure
that
crankshaft
and
cam

shaft

keys
point

upwards

Fuel

pump
drive

earn

2
Chain

guide

3

Chain
tensioner

4

Crank

sprocket

5
earn

sprocket

6
Chai

guide

EM439

b
Set

timing
chain

by

OOgning
its

mating
marks
with
those
oC
crank

shaft

sprocket
and
camshaft

sprock

et
at
the

right
hand
side
There
are

forty
four
chain
links
between
two

mating
marks
of

timing
chain

c
NO
2
hole
is

Cactory

adjusted

When
chain
stretches

excessively

adjust
camshaft

sprocket
at

No
3

hole

d
Use
a

set
of

timing
marks
and

location
hole

numbers
Engine
Mechanical

17
Install
chain
slack
side

guide
to

cylinder
block

18
Install
chain
tensioner

Note

Adjust
protrusion
oC
chain
ten

sioner

spindle
to
0
mm
0
in

Fig
EM
98

lmtalling
chain
tensioner

19
Press
new
oil
seal
in

front
cover

Notes

a
Front

cover
oil
seal
should
be
reo

placed
when
Cront
cover
is

disas

sembled

b
BeCore

pressing
oil
seal
into
Cront

cover

give
coating
of

engine
oil
to

periphery
of
oil
seal

c
This
oil
seal
is
a
threaded
seal

type

which
has

improved
sealing
charac

teristics
Do
not

apply
grease
to

sealing

lip

20
Install
front
cover
with

gasket
in

place

1

Timing
mark

2

Timing
mark

EM545

Fig
EM

99

Installing
fronl
COlHlr

Notes

a

Apply
sealant
to
Cront
cover
and

corners
oC

upper
section
of

cylinder

block

as
shown

in

Figure
EM
78

EM
24
b
Install
Cront
cover
with
head

gasket

in

place

c

Check

height
diCCerence
between

cylinder
block

upper
Cace
and
Cront

cover

upper
Cace
DifCerence
must

be
less
than
0
15

mm
0
0059
in

d

Note
that
difCerent

types
oC
bolts

are
used

e

Before

installing
front
cover
on

cylinder
block

apply

coating
oC

engine
oil
10

sealing
lip
of
oil

seal

EMS11

Fig
EM
lOD
Front

cover
bolts

Tightening
torque

Size
M8
0
315
in

1
0
to
1
3

kg
m
7

2
to
9
4

ft
lb

Size
M6
0
236
in

0
4
to
0
6

kg
m
2

9
to
4

3
ft
lb

21
Install
crankshaft

pulley
and

water

pump
assembly
then
set
No
I

piston
at
ToO
C
on
its

compression

stloke

Crankshaft

pulley
nu
I

tightening
torque

12
to
16

kg
m
B7
to
116
ft

lb

EM546

Fig
EM
Ol

lnstallingcran
haft

pulley
and

water

pump

22

Finally

tighten
head

bolts
to

the

specified
torque
in

three

steps

according
to
the

lightening
sequence

shown
in

Figure
EM
96

Note
thai
Iwo

types
of
bolts

are

used

30
Install
heatshieid

plate
on
mani

fold
assembly

31
Install
air

gallery
pipe
on
ex

haust
manifold

32
Install
manifold

gasket
and

manifold

assembly
on

cylinder
head

Tightening
torque

1
2to
1

6kg
m

8
7
to
11
6
ft
lb

33

Install
blow

by
gas

pipe
on

cyl

inder

block
and
tighten
with
rear

engine
slinger

34
Install
thermostat
housing

gas

ket
thermostat

housing
and

thermo

stat

35
Install
thermal
vacuum
valve
on

thermostat

housing
Before

installing

apply
a

liquid
packing
slightly
to
the

threads

36

Install
FJ

C
D
bracket
on

cylin

der

head

37

Install
E
G
R

passage
and

E
G
R
valve
on
intake
manifold

38
Connect
E

G
R
tube
to
E

G
R

tube
and

exhaust
manifold

39
Install
check
valve

on
air

gallery

pipe

40
Install
air
cleaner
bracket
on

intake
manifold

41
Install
air
control
valve
on
air

cleaner
bracket
California
models

42
Install
vacuum
and
fuel
tubes

combined
on

cylinder
head

43
Install
distributor

assembly

44
Install

heatshield
plate

joint

seat

and
carburetor

Carbure10r
tightening

torque

0
5

to
1

0

kg
m
3

6
to
7
2

ft
lb

Note
When

instalUng
joint
seat
be

sure
to

put
the
duct
into

primary

hole
in

intake
manifold

S

J

Heatshield

plate
4
Joint

seat

2

Primary
hole
5

Secondary
hole

3
Duct

EM534

Fig
EM
I06

Installing
carburetor

joint
seat
Engine
Mechanical

45
Install
dash

pot
bracket
and

dash

pot
to
intake

manifold

46
Connect
all
air

vacuum
and
fuel

hoses

and
then

secure
with

clamps

I
Cylinder
block
to

P
C
V
valve

hose

2
A
B

valve
to
E

G
R

passage
vac

uum
hose

3
A
B

valve
to
E
G

R

passage
air

hose

4
Vacuum
tube
to
carburetor
vac

uum
hoses

5
Fuel
ube

to
carburetor
fuel

hose

6
Fuel
tube
to
fuel

pump
fuelhose

7
Distributor
to
vacuum
switch
or

spark
delay
valve
vacuum
hose

8
Air
control
valve
vacuum
hose

9
Check
valve

to
air

control
valve

hose

10
Thermal
vacuum
valve
to

E
G
R
valve
vacuum
hose

I
I
Thermal
vacuum
valve
to

vacuum
tube
hose

47
Install
carburetor
air

cleaner
on

carburetor
and
then
connect
air

and

vacuum
hoses

as
follows

I

Air
cleaner
to

exhaust
manifold

hot

air
duct

2

Air
c1eaner
to
air

pump
hose

3

Air
cleaner
to
rocker

cover
hose

4

Air
cleaner

to
air
control
valve

hose

5

6

48
Install

spark
plugs
in

place

49
Connect
all
distributor

high
ten

sion

cables
to

spark
plugs

50
Install
air

pump
drive
belt
cool

er

compressor
and
idler

pulley

51

Install
left

engine
mounting

bracket

52
Install
clutch

assembly
on

flywheel
with
Clutch

Aligning
Bar

KV30100200
Air

cleaner
to
A
B

valve

hose

Other
vacuum
hoses

Tightening
torque

1
2
to
2
2

kg
m

8

7
to
15
9

ft
lb

EM
26
I

I

KV30100200

EM440

Fig
EM
I07
In

talling
clutch
embly

53

Using
an
overhead
hoist
and

lifting
cable
hoist

engine
away
from

engine
stand
and

then
down
onto

engine
carrier

54
Install

right
engine
mounting

bracket
oil
filter
oil

pressure
switch

oil

level

gauge
and
water

drain

plug

When

installing
oil

filter
fasten
it
to

cylinder
block

by
hand

Note
Do
not

overtighten

flit
or
oil

leakage
may
occur

55
Install
alternator
bracket

adjust

ing
bar
alternator

cooling
fan

and

belt

56

Adjust
the
deflection
of
drive

belts
when

thumb

pressure
is

applied

midway
between

pulleys
A

pressed

force
is
above
10

kg
22
0
lb

Deflection

of
drive
belts

8
to
12
mm

0
315

to
0
472
in

EM613

Fig
EM
lOB
Fan
belt
tension

57
Fill

engine
oil

up
to

specified

level

ENGINE
LUBRICATION
SYSTEM

2
Fill

pump
housing
with

engine

oil

then

align
punch
mark
of

spindle

with
hole
in
oil

pump
as
shown
in

Figure
EL

3

Punch
mark

EL009

Fig
EL
3

Aligning
punch
mark

and
oil
hole

3

Using
a
new

gasket
install
oil

pump
and
drive

spindle
assembly
so

that
the

projection
on
its

top
is

located
in
II
25
a
m

position
at

this
time
the
smaller
bow

shape
will

be

placed
toward
the
front
as
shown

in

Figure
EL
4

JI

I
c

J

V

Front
J

@
9@

tr
i

d

L
It
I

I
EL010

Fig
EL

4
Setting
drive

pindle

o

EL011

Fig
EL

5
Imtalling
oil

pump

Ascertain
whether

or
not

the
en

gagement
is
in
order

by
checking
the

top
of

spindle
through
distributor
fit

ting
hole

4

Tighten
bolts

securing
oil

pump

to
front
cover
Disassembly

and

assembly

I
Remove

pump
cover

attaching

bolts

pump
cover
and
cover

gasket

and
slide
out

pump
rotors

2
Remove

regulator

cap
regulator

valve
and

spring

3

Install

pressure
regulator
valve

and
related

parts

4
Install

outer
rotor
inner
rotor

and
shaft
in

pump
body
and
do
not

turn
cover

gasket
up

CD

El012

r

@
@

CD@

1

Oil

pump
body

2
Inner
rotor
and
shaft

3
Outer
rotor

4
Oil

pump
cover

5

Regulator
valve
6

Regulator
spring

7
Washer

8

Regulator
cap

9
Cover

gasket

Fig
EL

6
Oil

pump

Inspection

Wash
all

parts
in

cleaning
solvent

and

dry
with

compressed
ir

I

Inspect
pump
body
and
cover

for
cracks
or
excessive

wear

2

Inspect
pump
rotors
for
excessive

Rotor
side
clearance

rotor
to
bottom

cover
Olm
in

Rotor

tip
clearance

@
mOl
in

Outer
rotor
to

body

clearance

D
mm

inl

EL

3
wear

3

Check
inner

rotor
shaft
for

looseness
in

pump
body

4

Inspect
regulator
valve
for

wear

or

scoring

5

Check

regulator
spring
to
see

that

it
is
not

worn
on
its

side
or

collapsed

6

Using
a

feeler

gauge
check

tip

clearance
2
and

outer
rotor
to

body

clearance
I

shown
in

Figure
EL
7

1
Outer
rotor
to

body
clearance

2

Tip
clearance

3

Gap
between

rotor
and

straight
edge

4

Gap
between

body
and

straight
edg
e

Fig
EL
7

Checking
rotor
clearance

7

Place
a

straight
edge
across
the

face
of

pump
and

depress
it

slightly
as

shown
in

Figure
EL
7

Check

gap
4

between

body
and

straight
edge
or

gap

3
between

rotor
and

straight
edge

The

gap
should
be
0
03
to
0

06

mm

0
0012
to
0
0024
in
then

rotor
side

clearance
rotor
to
bottom

cover
clearance
with

gasket
should

satisfy
the

specifications

Standard
Wear

limit

0
04

to
0

08

0
0016
to

0
0032
0
20
0
0079

Less

than

0
12
0

0047
0

20
0
0079

0

15
to
0
21

0
0059

to
0
0083
0
5

0
0197

ENGINE
LUBRI
CATION
SYSTEM

Note

Pump
rotors
and

body
are
not

serviced

separately
If

pump
rotors

or
body
are

damaged
or
worn

replacement
of
the
entire
oil

pump

assembly
is

necessary

Tightening
torque

Oil

pump
mounting
bolts

Oil

pump
cover
bolts

Regulator
valve

cap
nut

Specifications

Oil

pressure
at

idling

Regulator
valve

spring

Free

length

Pressured

length

Regulator
valve

opening
pressure

OIL
FILTER

The
oil
filter
is
a

cartridge
type

The
oil
filter
element
should
be
reo

placed
periodically
with

the
use
of
Oil

Filter
Wrench
ST19320000

When

installing
an
oil
filter
fasten

it
to

cylinder
block

by
hand

Note
Do
not

overtighten
filter
or
oil

leakage
may
occur
OIL
PRESSURE

REGULATOR
VALVE

The
oil

pressure
regulator
valve
is

not

adjustable
At
the
released

position
the
valve

permits
the
oil

to

by
pass
through
the

passage
in

the

pump
cover
to
the
inlet
side
of
the

pump
Check

regulator
valve

spring
to

ensure
that

spring
tension
is

correct

kg
m
ft
Ib

kg
m
ft
lb

kg
m
ft
lb

kg
cm2

psi

mm
in

mm
in

kg
em
2

psi

RELIEF

VALVE

The
relief
valve
located
at
the

center

portion
securing
oil
fIlter
to

the

cylinder
block

by

passes
the
oil

into
the
main

gallery
when
the
oil

fIlter
element
is

excessively

clogged

STl9320000

EL015

Fig
EL
9

Removing
oil

filter

EL
4
EL014

Fig
EL
B

Regulator
value

l
l

to
1
5
8
0
to
11

0
7
to

1
0
5
Ito
7
2

4

to
5
29
to
36

0
8
to
2
8

II
to
40

52
5
2
067

34
8

1
370

35
to
5
0
50
to
71

With
oil
fIlter
removed
check

valve
unit
for

operation
Inspect
for
a

cracked
or
broken
valve
If

replace

ment
is

necessary
remove
valve

by

prying
it

out
with
a
screwdriver

Install
a
new
valve
in

place
by

tapping
it

EL016

Fig
EL
JO
Relief
lJOlue

ENGINE

LUBRICATION
SYSTEM

SERVICE
DATA
AND

SPECIFICATIONS

Oil

pump

Standard
Wear
limit

mm
in
0
04
to

0
08

0
0016
to
0
0032

less
than
0
12
0
0047

0
15
toO
21

0
0059
to
0

0083
0
20

0

0079

0
20

0
0079

0
5

0

0197
Rotor
side
clearance

rotor
to
bottom
cover

Rotor

tip
clearance
mm
in

Outer
rotor
to

body
clearance
mm
in

Oil

pressure
regulator
valve

Oil

pressure
at

idling

Regulator
valve

spring

Free

length

Pressured

length

Regulator
valve

opening

pressure
kg
cm2

psi
0

8
to
2
8

II
to
40

mm
in

mmOn

kg
em2

psi
52
5
2
067

34
8
1
370

3
5
to
5

0
50
to

71

Tightening
torque

Oil

pump
bolt

Oil

pump
cover
bolt

Regulator
valve

cap
nut
kg
m
ft
lb

kg
m
ft
lb

kg
m
ft

Ib
1
1
to
1
5
8
0

to
10
8

0

7
to
1

0
5
1

to
7
2

4
to
5
29

to
36

TROUBLE
DIAGNOSES
AND
CORRECTIONS

Condition
Probable
causes
Corrective
actions

Oil

leakage
Damaged
or
cracked

body
cover

Oil

leakage
from
gasket

Oil

leakage
from

regulator
valve

Oil

leakage
from
blind

plug
Replace

Replace

Tighten
or

replace

Replace

Decreased
oil

pressure
Leak
of
oil
in

engine
oil

pan

Dirty
oil
strainer

Damaged
or
worn

pump
rotors

Faulty
regulator

Use
of

poor
quality
engine
oiL
Correct

Clean
or

replace

Replace

Replace

Replace

Warning

light

remains
on

engine
running
Decreased
oil

pressure

Oil

pressure
switch
unserviceable

Electrical
fault
Previously
mentioned

Replace

Check
circuit

Noise
Excessive
backlash
in

pump
rotors

Replace

EL
5

DESCRIPTION

COOLANT
LEVEL

DRAINING
AND
FLUSHING
THE

COOLING
SYSTEM

WATER
PUMP

REMOVAL
AND

INSTALLATION

DISASSEMBLY

INSPECTION
AND
ADJUSTMENT

TORQUE
COUPLING

REMOVAL
AND

INSTALLATION

DESCRIPTION

The

cooling
system
is
of
the
con

ventional

pressure
type
A

centrifugal

pump
installed
on

the

timing
chain

cover
serves
to
circulate
the

coolant

The

pressure
type
radiator
filler

cap

installed
on
the
radiator

operates
the

cooling
system
at

higher
than

atmos

pheric
pressure

The

higher

pressure
raises
the

boiling
point
of
the

coolant
and
in
Cooling
System

COOLING
SYSTEM

CONTENTS

CO
2

CO
2
OISASSEMBL
Y

INSPECTION

TEM
COUPLlNG

INSPECTION

THERMOSTAT

REMOVAL
AND

INSTALLATION

INSPECTION

RADIATOR

REMOVAL
AND

INSTALLATION

INSPECTION
CO
2

CO
2

CO
3

CO
3

CO
3

CO
3

CO
4

creases
the

cooling
efficiency
of

the

radiator

When
the

thermostat
is
closed

the

coolant
remains
in
the

cylinder
head

and

block
for
swift

warming
up
of
the

engine
After
it
reaches

normal

oper

ating

temperature
the

coolant
circu

lates

through
the
radiator

The

cooling
fan

drive
is
of
a

coupling
type

COOLANT

LEVEL

The

coolant
level
should

be
check

ed

and
maintained
at
SO

mm
1
97
in

below

the

upper
face
of
filler

neck

when
the

engine
is
cold
C0055

Fig
CO

I
Cooling

ry
lem

Caution

To
avoid
serious

personal

injury
never
remove
I3diator

cap

quickly
when

engine
is
hot
Sudden

release
of

cooling

system
pressure
is

very

dangerous

CO
2
CO
4

CO
4

CO
4

CO
5

CO
5

CO
5

CO
5

CO
5

CO
5

CO
6

If
it
is

necessary
to
remove
radiator

cap
wben
radiator
is
hot
turn

cap

slowly
counterclockwise

to
the
r

step
After
all

pressure
in
the
cool

ing
system
is
released
tom

cap

passing
the

stop
and
remove
it

DRAINING

AND
FLUSHING

THE

COOLING

SYSTEM

To
drain

the

cooling
system
re

move
radiator

cap
release
drain

cock

at
the
bottom

of
radiator
and
drain

plug
on

the

right
side
of

cylinder

block
If
the

heater

system
is
installed

set
heater

temperature
control
valve
to

open
position
After
the

coolant
is

drained

completely
close
drain

cock

and

plug
and
refill
the

system
with

clean
soft
water

WATER
PUMP

The

water

pump
cooling
fan

pulley

and

torque

coupling
are

a
unitized

construction

The
water

pump
is
of

a

centrifugal

type
which

is
mounted
on
the

engine

front
cover

The

pump
shaft
is

supported
by
a

double
row

of
ball

bearings

press
fit
in

an
aluminum
die
cast

pump
body
The

bearings
are

permanently
lubricated

and
sealed

to

prevent
loss
of
lubricant

and

entry
of

dirt

The

pump
is

provided
with
an

impeller
which
turns
on
a
steel

shaft

The

steel
shaft
rotates

together
with

the

torque

coupling
wheeL
The
volute

chamber
is
built
in
the

engine
front

cover

assembly

The
inlet
of
the

pump
is

connected

to

the
radiator
s
lower
tank

by
a
hose

i

o

CQ047

Fig
CO
2
Water

pump
and

engine

front
cover

REMOVAL
AND

INSTALLATION

Removal

in
to
a
clean

con

assembly

I

CQ048

Fig
CO
3
Removing
water

pump

Installation

1
Be

sure
to
clean
the

gasket
sur

faces
in
contact
with

pump
and
front

cover

Always
use
new

gaskets
when

installing

pump
assembly
Be
sure
to

tighten
bolts
Cooling
System

Tightening

torque

0
4
to
0
5

kg
m

3
0
to
3
6
ft
lb

2

Fill

cooling
system
and
check
for

leaks
at

pump

3

Install
fan
blade
and

tighten
at

taching
bolts

securely
Install
belt
and

adjust
for

specified
tension

4

Operate
the

engine
at
fast

idling

and
recheck
for
leaks

5
Install
fan
shrouds

Note
Ensure
that
clearance
between

shroud
and
Can
is

even
at

any

place

DISASSEMBLY

Water

pump
is

made
of
aluminum

and
its

bearing
outer
race
is
of
a

press

fit

type
For
this

reason
water

pump

should
not
be
disassembled

INSPECTION
AND

ADJUSTMENT

Inspection

Inspect
pump
assembly
for
the

fol

lowing
conditions
and

replace
if
nee

essary

1

Badly
rusted
or
corroded

body
as

sembly
and

vane

2

Excessive
end

play
or

roughness
of

bearings
in

operation

3
Reduced

cooling
efficiency
due
to

deteriorated
silicone
oil

4
Oil

leakage
in

torque
coupling
Adjustment

Fan

belt
should
be

properly
ad

justed
at
all
times
A

tight
belt
causes

wear
of

alternator
and
water

pump

bearings
A
loose
belt

brings
about

improper
cooling
fan
water

pump

and
alternator

operation

Check
the
belt
slack
between
alter

nator
and
fan

pulley
by
force
of
10

kg

22
lb

Slackness
of
fan
belt

8
to
12

mm

0
31
to
0
47
in

If

adjustment
is

necessary
loosen

bolt

retaining
alternator

adjusting
bar

to
alternator
Move

alternator
toward

or

away
from

engine
until
the
correct

tension
is
obtained

TORQUE
COUPLING

Except
air

conditioner

equipped

models

The

torque
coupling
keeps
the
fan

speed
at
2
500

rpm
rated
or
below

to

conserve
horsepower
at

high
engine

speed
It
also

helps
reduce
fan
noise
to

a
minimum

during
high
speed
opera

tion

This
unit
is
filled
with
a

special

silicone
oil
used
as
a

fluid

coupling

which
controls
the

fan

speed
Silicone

oil

can
not
be

replenished

1

Torque
coupling
wheel

2

Torque
coupling
cover

3

Torque
coupling
bearing

4
Pulley

5
Water

pump

C0060

Fig
CO
4
Sectional
view
of

torque
coupling
and
water

pump

00
3

Conventional

COUplin9

WATER
PUMP
SPEED

F

Z

Tern

coupling

WATER
PUMP

SPEED

C0029

Fig
CO
6
Characteristic

of

Tern
coupling

INSPECTION

Check
Tem

coupling
for
oil

leakage

or
bend
of
bimetal

If
the
above

symptoms
are
found

replace
it
with

a
new
one
as
an

assembly

THERMOSTAT

A
wax

pellet
type
thermostat
is

mounted
in
the
thermostat

housing
at

the

cylinder
head
water
outlet

The
function
of
the
thermostat
is

to
control
the

flow
of
coolant
facili

tating
fast

engine
warm

up
and

regu

lating
coolant

temperature
The
ther

mostat
is

designed
to

open
and
close
at

predetermined
temperatures
and
if

not

operating
properly
should
be

re

moved
and
tested
as
described
below

REMOVAL
AND

INSTALLATION

I

Drain
coolant

partially

2
Disconnect

upper
radiator
hose
at

water
outlet

3

Remove
bolts

and
remove
water

outlet

gasket
and
thermostat
from

thermostat
housing

Fig
CO
7

Removing
therm06t
t
Cooling
System

4

After
checking
thermostat
re

install
with

a
new

housing
gasket
in

place

5
Reinstall
water

outlet

6

Replenish
coolant
and
check
for

leaks

INSPECTION

A

sticking
thermostat
will

prevent

the

cooling
system
from

functioning

properly
If
the
thermostat
sticks
in

the

open
position
the

engine
warms

up
very
slowly
If
the
thermostat

sticks
in

the
closed

position
over

heating
will
result
Therefore
the
ther
mostat
should
be

inspected
to

make

sure
that
it
is
in

good
condition

1
Measure
coolant
temperature

when
thermostat
valve
starts
to

open

2
Measure
the
maximum
lift

of

thermostat
valve

Fig
CO
S

Impecting
therm06t
t

Temperate
Frigid
Tropical

type

type
iype

Valve

opening

80
5
to
83
5
86
5
to
89
5
75

to
78

temperature

177
to
183
187
to
193

167
to
172

oC
OF

Maximum

valve
lift
8
95
8
1
00
8
90

mm
oC

in
F
0
31
203

0
31
212
0
31

194

If
thermostat
does
not

operate
at

the
above

specified

temperature
it

must
be

replaced
because
it
cannot
be

repaired

RADIATOR

The
radiator
is

a
conventional
down

flow

type
having

top
and

bottom

tanks
to

distribute
the
coolant
flow

uniformly
through
the
vertical
tube
of

radiator
core

The

radiator
filler

cap
is

designed
to

maintain
a

pre
set

pressure
0
9

kg
cm2
13

psi
above

atmospheric

pressure

The
relief
valve

consisting
of

a

blow
off

valve
and
a

vacuum
valve

helps
to

prevent
the
coolant
from

boiling
by
giving

pressure
to
it
How

ever
when

the

pressure
is
reduced

below

atmospheric

pressure
the

vacu

um
valve
allows
air

to
re
enter

the

radiator

preventing
the
formation
of
a

vacuum
in
the

cooling
system

CO
5
On
models

equipped
with
auto

matic
transmission

the
oil
cooler
is

combined
with
the

radiator
to
cool

transmission
fluid

REMOVAL
AND

INSTALLATION

Drain
coolant
into
a
clean
con

tainer

2

Disconnect
radiator

upper
and

lower
hoses
On
models
with
auto

matic
transmissions
disconnect
cooler

inlet
and
outlet
lines
from
radiator

3

Remove
fan
shroud
retaining

bolts
and

remove
fan
shroud

4

Remove
front

grille

5

Remove
radiator
retaining
bolts

and
then

remove
radiator

upward

6
Install
radiator
in
the
reverse
se

quence
of
removal
Note
the
fol

lowing

I
Insert
hoses
in

their

positions

until

they
bottom

2
Ensure
that
arrow
marks
on

hoses
are

clearly
visible
from

upper