
AUTOMATIC
TRANSMISSION
Manual
linkage
The 
hand 
lever 
motion
The 
hand
lever 
is 
located
in 
the 
driver
s 
com
part
men
mechanically 
transmitted 
from
the 
remote 
control
linkage 
is 
further
transmitted 
to 
the 
inner 
manual
lever
in
the 
transmission
case 
from 
the
range
selector 
lever 
in
the
right 
center
poc
tion
of 
the
transmission 
case
through
the 
manual
shaft 
The 
inner
manual
lever 
is
thereby 
turned
A
pin 
installed 
on
the 
bottom 
of
the 
inner 
manual 
lever 
slides 
the
manu
al
valve
spool 
of 
the
control 
valve 
and
thus 
the
spool 
is
appropriately 
posi
lioned
opposing 
to
each 
select
position
The
parking 
rod
pin 
is
held 
in 
the
groove 
on 
the
top 
of 
the 
inner
manual
plate 
The
parking 
rod
pin 
operates 
the
rod 
at 
p
range 
and
operates 
the
mechanical
lock
system
Moreover 
the 
above 
described
manual 
shaft 
is
equipped 
with 
an
inhibitor 
switch 
A
rotor 
inside 
the
inhibitor 
switch 
rotates 
in
response 
to
each
range 
When 
the
range 
is 
selected
at 
p 
or 
N 
the
rotor 
closes 
the
starter
magnet 
circuit 
so 
that 
the
engine 
can
be 
started 
When 
the
range
is 
selected
at 
R 
the
rotor 
closes 
the
back
up 
lamp 
circuit 
and 
the
back
up
lamp 
lights
Vacuum
diaphragm
The 
vacuum
diaphragm 
is 
installed
un 
the 
left
center
portion 
of 
the
transmission 
case 
The
internal 
con
struction 
of 
the 
vacuum
diaphragm 
is
as 
follows 
A 
rubber
diaphragm 
forms
a
partition 
in 
the 
center 
The
engine
intake 
manifold
negative 
pressure 
led
through 
vacuum 
tube 
and
spring 
force
are
applied 
to 
the 
front 
surface 
of 
the
rubber
diaphragm 
and
atmospheric
pressure 
is
applied 
to 
the 
back 
surface
A 
difference 
between 
pressure
applied
to
the 
front 
and 
back 
surfaces 
be
comes 
a
vacuum 
reaction 
and 
thus
the 
throttle 
valve 
of 
the
control 
valve
inside 
the 
transmission 
case 
is
op
erated
When 
accelerator
pedal 
is
fully 
de
pressed 
and 
the 
carburetor 
is
fully
upened 
but 
the
engine 
speed 
is 
not 
1
Housing
2 
Cover
3
Outer 
gear 
AT071
4 
Inner
gear
5 
Crescent
Fig 
AT 
3 
Oil
pump
1
Manual
plate
2
Inhibitor
switch 
A 
TOB7
3
Parking 
rod
4 
Manual
shaft
Fig 
AT 
4
Manuallinhage
To 
intake 
manifold
A
TOBB
Fig 
A 
T 
5
Vacuum 
diaphragm
iV
Down 
shift 
solenoid 
i
KiCk 
down
switch
A
TOB9
Fig 
A 
T 
6
Downshift 
solenoid
AT 
5 
sufficiently 
increased 
the 
manifold
negative 
pressure 
lowers
becomes
similar 
to 
the
atmospheric 
pressure
and 
the
vacuum 
reaction
increases
since
the 
flow
velocity 
of 
mixture
inside 
the 
intake 
manifold 
is
slow
Contrarily 
when 
the
engine 
speed
increases 
and
the 
flow
velocity 
of
the
mixture
increases 
or 
when
the 
carbure
tor 
is 
closed
the 
manifold
negative
pressure 
increases 
becomes 
similar 
to
vacuum 
and 
the
vacuum 
reaction
reduces
Thus 
a
signal 
to
generate 
hydraulic
pressure 
completely 
suited 
to
the
engine
loading 
at 
the
control 
valve 
is
transmitted 
from
the 
vacuum 
dia
phragm 
and
most 
suitable
speed
change 
timing 
and 
line
pressure 
are
obtained 
so
that 
the 
most
proper
torque 
capacity 
is
obtained
against 
the
transmitting
torque
Downshift
solenoid
The 
downshift
solenoid 
is
of 
a
magnetic 
type 
installed
on 
the 
left 
rear
portion 
of 
the
transmiSsion 
case
When
a
driver
requires 
accelerating 
power
and
depresses 
the 
accelerator
pedal
down 
to
the
stopper 
a
kick 
down
switch
located 
in 
the
middle 
of 
the
accelerator 
link 
is
depressed 
by 
a
push
rod 
the 
kick 
down 
switch 
closes 
cur
rent 
flows 
to
the 
solenoid 
the 
sole
noid
push 
rod 
is
depressed 
the
down
shift 
valve 
of
the 
control 
valve 
inside
the 
transmission
case 
is
depressed 
and
the
speed 
is
changed 
forcedly 
from
3rd 
to 
2nd 
within 
a
certain 
vehi
cle
speed 
limit
Note 
As 
the 
kick 
own
switch 
closes
when 
the 
accelerator
pedal 
is
depressed 
from 
7 
8 
to 
IS 
16 
of
the 
whole 
stroke 
the
accelera
tor
pedal 
should 
be
correctly
adjusted 
and 
fixed 
so 
as 
to
afford
complete 
stroke
The
arrangement 
of 
the 
switch
differs
according 
the 
models 
of
vehicle
Governor 
valve
The
primary 
and
secondary 
gover
nor 
valves 
are 
installed
separately 
on
the
back 
of 
the 
oil 
distributor 
on
the 

against 
the
throttle
pressure 
16
When
performing 
the
kick 
down
the
SOV
moves 
a
high 
line
pressure 
is
led 
to
the 
circuit 
19
from 
the 
line
pressute 
circuit 
13
which 
had
been
drained 
the
plug 
is
depressed 
toward
the 
left
and 
the 
circuit
19 
becomes
equal 
to 
the
line
pressure 
13 
Thus
the
kick 
down 
is
performed
Preasure 
modifier 
valve
PMV
In
comparison 
with 
the
operating
pressure 
required 
in
starting 
the
vehi
ele
power
transmitting 
capacity 
of 
the
clutch
in 
other
words
required 
op
erating 
pressure 
may 
be
lower 
when
the
vehicle 
is 
once
started 
When 
the
line
pressure 
is 
retained 
in
a
high 
level
up 
to 
a
high 
vehicle
speed 
a 
shock
generated 
from 
the
shifting 
increases
and 
the 
oil
pump 
loss 
also
increases 
In
order 
to
prevent 
the 
above
described
defective 
occurrences 
with
the
opera
lion
of 
the
governor 
pressure 
15 
the
throttle
pressure 
must 
be
changed 
over
to
reduce 
the
line
pressure 
The 
PMV
is 
used
for 
this
purpose
When 
the
governor
pressure 
15
which 
is
applied 
to
the
right 
side 
of
the
PMV 
is
low 
the 
valve 
is
depressed
toward
the
right 
by 
the
throttle
pres
sure
16
applied 
to
the 
area
differ
ence 
of
the 
value 
and 
the
spring 
force
and
the 
circuit
from 
the
circuit 
16 
to
the
circuit 
18 
is
closed
However
when
the
vehicle
speed 
increases 
and
the
governor
pressure 
15 
exceeds 
a
certain
level 
the
governor
pressure
toward
the 
left
which 
is
applied 
to 
the
right 
side
exceeds 
the
spring 
force 
and
the
throttle
pressure 
16 
toward 
the
right 
the 
valve 
is
depressed 
toward 
the
left 
and 
the
throttle
pressure 
is
led
from 
the 
circuit
16 
to
the
circuit
18 
This
throttle
pressure 
18 
is
applied 
to
the
top 
of 
the
PRY
and
pressure 
of 
the 
line
pressure 
source 
7
is
reduced
Contrarily 
when 
the 
vehi
cle
speed 
lowers 
and 
the
governor
pressure 
15 
lowers 
the
force 
toward
the
right 
exceeds 
the
governor 
pres 
CHASSIS
sure 
the 
valve 
is
depressed 
back 
to
ward 
the
right 
the
throttle
pressure
18 
is 
drained 
to
the
spring 
unit
This
valve 
is
switched 
when 
the
throttle
pressure 
and 
the
governor
pressure 
are
high 
or 
when
the 
throttle
pressure 
is
low 
and 
the
governor
pres
sure 
is 
low
II
18 
16
1JU
k 
I
15
AT099
Fig 
AT 
14 
Pressure
modifier 
valve
Vacuum 
throttle 
valve
VTV
The
vacuum
throttle 
valve 
is 
a
regulator 
valve
which 
uses
the 
line
pressure 
7 
for 
the
pressure 
source
and
regulates 
the
throttle
pressure 
16
which
is
proportioned 
to 
the
force
of
the
vacuum
diaphragm 
The
vacuum
diaphragm 
varies
depending 
on 
the
engine 
throttle 
condition
negative
pressure 
in 
the
intake 
line
When 
the 
line
pressure 
7 
is
ap
plied 
to
the 
bottom
through 
the 
valve
hole
and 
the
valve 
is
depressed
up
ward
space 
from 
the
line
pressure 
7
to 
the
throttle
pressure 
16 
is
closed
and 
the
space 
from 
the
throttle
pres
sure
16 
to 
the
drain 
circuit 
17 
is
about 
to
open 
In
this
the 
throttle
pressure 
16 
becomes 
lower
than 
the
line
pressure 
7
by 
the
pressure
equivalent 
to 
the
pressure 
loss
of 
the
space 
and 
the
force 
to
depress
through 
the
rod 
of 
the
vacuum
dia
phragm 
is
balanced 
with 
the
throttle
pressure 
16
applied 
upward 
to
the
bottom
When
the
engine 
torque 
is
high 
the
negative 
pressure 
in 
the
intake
line
rises
similar 
to 
the
atmospheric 
pres
sure 
and 
the
force 
of
the 
rod 
to
depress 
the 
valve
increases
As 
the
result 
the 
valve 
is
depressed 
down
ward 
the
space 
from 
the 
throttle
pressure 
16 
to
the 
drain
17 
re
AT
lO 
duces 
and 
the
space 
from 
the
line
pressure 
7 
to 
the
throttle
pressure
16 
increases
Consequently 
the
throttle
pressure
16 
increases
and 
the
valve 
is
baI
anced
Contrarily 
when
the
engine
torque 
lowers 
and 
the
negative 
pres
sure 
in
the 
intake 
line 
lowers
similar
to 
vacuum 
force 
of
the 
rod
to 
de
press 
the
valve 
lowers 
and 
the
throttle
pressure
16 
also
lowers
When 
a
pressure 
regulated 
by 
the 
throttle
back
up 
valve 
described 
in
the 
subse
quent
paragraph 
is
led
to 
the 
circuit
17 
a
high
pressure 
is
applied
through
the
space 
from 
the 
circuit 
17
to 
the
throttle
pressure 
16
Consequently
the 
VTV 
is
unbalanced 
the
throttle
pressure 
16 
becomes
equal 
to
the
back
up 
ptessure 
17 
and 
the 
valve 
is
locked
upward
bi
II 
I
ATlOa
Fig 
AT 
15 
Vacuum
throttle
valve
Throttle
back
up 
valve 
TBV
Usually 
this 
valve 
is
depressed
downward
by 
the
spring 
force
and 
the
circuit
17 
is
drained
upward
As
soon 
as 
the 
lever 
is
shfted 
either
to 
2 
or
range 
line
pressure 
is
led
from 
the 
circuit 
4
the 
line
pressure 
is
applied 
to 
the 
area 
differ
ence 
of 
the 
valve
the 
valve 
is
depres
sed
upward 
the
space 
from 
the 
circuit 

CHASSIS
SERVICE 
DATA 
AND 
SPECIFICATIONS
General
specifications
Torque 
converter
Type
Stall
torque 
ratio
Transmission
Type
Control 
elements
Gear 
ratio
Selector
positions
Oil
pump
Type
Number 
of
pump
Oil
Capacity
Hydraulic 
control
system
Lubrication
system
Cooling 
system 
Multiple 
disc 
clutch
Band 
brake
Multiple
disc 
brake
One
way 
clutch
1st
lnd
3rd
Reverse
P 
Park
R 
Reverse
N 
Neutral
D 
Drive
1 
lnd 
lock
I 
Lock
up
AT 
60 
Symmetrical3 
element 
I
stage 
l
phase 
torque
converter
coupling
2
0 
I
3
speed 
forward 
and 
one
speed 
reverse 
with
planetary 
gear 
train
1
I
I
I
2
458
1 
458
1 
000
2 
182
The 
transmission 
is
placed 
in 
neutral 
The
output
shaft 
is 
fixed 
The
engine 
can 
be 
started
Backward
running
The 
transmission 
is 
in
neutral 
The
engine 
can 
be
started
Up 
or 
downshifts
automatically 
to 
and
from 
1st
lnd 
and
top
Fixed 
at 
2nd
Fixed 
at 
low
or 
downshifts 
from 
2nd
Internally 
intermeslting 
involute
gear 
pump
Automatic 
transmission 
fluid
Dexron
type
5
5 
liters 
57 
8 
U 
S
qts 
47 
8
Imp 
qts
Approximately 
1 
7 
liters 
27 
8 
U
S
qts 
2
3 
8
Imp 
qts 
in
torque 
converter
Controlled
by
detecting 
the
negative 
pressure
of 
intake 
manifold 
and 
the 
revolution
speed 
of
output 
shaft
Forced 
lubrication
by 
an 
oil
pwnp
Air 
cooled 

BODY
ELECTRICAL
Distributor 
Secure
ground 
of
ignition 
coil
Secure 
contact 
of
carbon 
electric
pole 
and
rotor
Eliminate 
excessive
tip 
on 
the
rotor
pole 
or
cap 
pole 
by 
scrubbing 
with
a 
screwdriver
Check
stagger 
between
rotor 
and
stator
Charging
system
Sound 
of
alternating 
current
pre
sents 
Alternator 
Install 
a 
0 
5
l 
F
capacitor
on
charging 
terminal 
A
Note 
Do 
not 
use
capacitor 
ex
cessively
If
capacity 
is 
used 
ex
cessively 
the 
alternator 
coil
will 
be 
broken
When
the 
accelerator
pedal 
is 
de
pressed 
or 
released 
noise
presents 
Regulator 
Install 
a 
0
5 
l 
F
capacitor 
on 
A
terrninal 
of 
the
voltage 
regulator
Supplement 
equipment
When
engine 
starts 
noise
presents
Noise
still
presents 
even 
after
stopping 
the
engine 
Operative 
noise
of 
ther
rnometer 
and 
fuel
gauge 
Install 
0 
1 
l
F
capacitor 
between
terminal 
and
ground 
wire
Note 
If
a
capacitor 
having 
ex
cessive
capacity 
is 
used 
indi
cation 
of 
meter 
will 
be 
devi
ated
Noise
presents 
when 
horn 
is 
blown
Horn 
Install 
a 
0 
5
IF
capacitor 
on 
the
horn
relay 
terminal 
or 
horn
switch
Noise
presents 
when 
turn
signal
lamps 
are
operated 
Flasher 
unit 
Install 
a 
0
5
l 
F
capacitor
Note 
a 
Be
sure 
to 
locate
capacitor 
most 
near
position
of 
noise
source 
and
connect 
in
parallel 
completely
d 
Make
installation 
and
conneCtion
securely
b
Cut 
lead
wire 
as 
short 
as
possible
c 
Ground 
wire 
should 
be
placed 
on 
the
body 
e
Carefully 
identify
marks 
IN 
or 
OUT
BE 
33 

ENGINE
operating 
mechanism
Adjust 
valve
clearance 
at
following 
four
points 
while
engine 
is 
still
hot
G 
Exhaust
valve 
of 
No 
1
cylinder
CV 
Intake 
valve
of 
No 
1
cylinder
CID 
Intake 
valve
of 
No 
2
cylinder
CID 
Exhaust 
valve 
of 
No
3
cylinder
Note 
Numbers 
in
parenthesis 
agree 
with 
those 
in
ac
companying 
sketch
I
Fig 
BY
1
Adjusting 
valve 
clearance
4
Again 
rotate
crankshaft 
one 
turn 
so 
that 
No
4
piston
is 
in
top 
dead 
ce
lter 
on 
its
compression 
stroke
Adjust
follnwing 
valves
@ 
Exhaust 
valve 
of 
No 
2
cylinder
@ 
Intake
valve 
of 
No
3
cylinder
f 
Intake 
valve
of 
No
4
cylinder
@ 
Exhaust 
valve
of 
No
4
cylinder
Adjustment 
should 
be
made 
while
engine 
is 
hot 
After
all
valves 
have
been
adjusted 
correctly 
tighten 
lock 
nut
firmly 
to
secure 
the
adjustment
Vah
e 
clearance
Hot 
Intake
0 
35
mm 
0 
014 
in
Exhaust 
Checking 
and
adjusting 
drive
belt
II
I
Fig 
ET 
2
Adjusting 
drive 
belt
tension
I
Check 
for 
a
cracked 
or
damaged 
V
belt
Replace 
if
defective
2
Adjust 
the 
belt 
tension 
if
necessary
Belt 
deflection 
when
thumb
pressure 
of 
10
kg 
22 
0 
lb
is
applied 
midway 
between
pulleys 
10 
to 
15 
mm
0
394
to 
0
590 
in
Retightening 
cylinder 
head 
bolts
manifold 
nuts
and 
carburetor
securing
nuts
Cylinder 
head 
bolts
When 
the
engine 
is 
in
cold
tightening 
should 
be 
made
in
several
steps 
and 
in
sequence 
shown 
in
Figure 
EM
82
page 
EM 
31
starting 
with 
the 
center
toward 
the
ends
Tightening 
torque
1st 
turn
2nd 
turn 
4
0 
to 
4 
5
kg 
m 
29 
to 
33
ft 
lb
5
5
to 
6 
0
kg 
m
40 
to 
43 
ft 
lb
Then 
warm
up 
the
engine 
and
retighten 
the 
bolts 
to 
the
specification 
of 
hot 
condition
Tightening 
torque 
hot
6 
0
to 
6 
5
kg 
m 
43
to 
47 
ft 
lb
Other
tightening 
torque
Manifold 
nuts 
0 
9 
to 
14
kg 
m 
6 
5 
to 
10 
ft 
lb
Carburetor 
nuts 
0
5
to 
LO
kg 
m 
3
6 
to 
7 
2 
ft 
lb
Checking 
engine 
oil
Oil
capacity 
of
engine 
including 
oil 
filter
ET 
2 

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
Checking
cooling 
system 
hoses
and 
connections
Check
cooling 
system 
hoses
and
fiHings 
for 
loose
connections 
and 
deterioration
Retighten 
or
replace 
as
necessary
Inspection 
of 
radiator
cap
Apply 
reference
pressure 
0 
9
kg 
cm1 
13
psi 
to
radiator
cap 
by 
means 
of 
a
cap 
tester 
to
see 
if 
it 
is 
in
good 
condition
Replace 
cap 
assembly 
if
necessary
ET012
Fig 
ET 
5
Testing 
radiator
cap
Cooling 
system
pressure 
test
With 
radiator
cap 
removed
apply 
reference
pressure
1 
6
kg 
cm1 
23
psi 
to 
the
cooling
system 
bv 
means
of 
a
tester 
to 
check
for 
leaks
at 
the
system 
compo
nents
Water
capacity
with 
heater
4 
9 
l 
I 
Y 
US
gal 
l
i
Imp 
gal
without 
heater 
4 
2
l
I 
i 
US
gal 
i
Imp 
gal
Fig 
ET 
6
Testing 
cooling 
system 
pressure 
Checking 
vaccum
fittings 
hoses
and 
connections
Check 
vacuum
system 
fittings 
and 
hoses 
for
loose
connections 
and
deterioration
Retighten 
if
necessary
replace 
any 
deteriorated
parts
Checking
engine 
compression
Compression 
pressure 
test
Note 
To 
test
cylinder
compression 
remove 
all
spark
plugs 
and 
hold 
tester
fitting 
tightly 
in
spark 
plug
hole 
of
cylinder
The
tester 
is 
used 
to
determine 
whether
cylinder
can 
hold
compression 
or 
whether 
there 
is
excessive
leakage
past 
rings 
etc
I
Td10
l 
y
Fig 
ET
7
Testing
compression 
pressure
Test
compression 
with
engine 
warm 
all
spark 
plugs
removed 
and 
throttle 
and 
choke 
valve
opened 
No
cylinder
compression 
should 
be 
less
than 
80
of
highest 
cylinder 
s 
Excessive 
variation
between
cyl
inders
accompanied 
by 
low
speed 
missing 
of 
the
cylinder 
usually 
indicates 
a
valve 
not
properly 
seating
or 
a 
broken
piston 
ring 
Low
pressures 
even
though
uniform
may 
indicate 
worn
rings 
This
may 
be
accompanied 
by 
excessive
oil
consumption
Test
conclusion
If 
one 
or 
more
cylinders 
read 
low
inject 
about 
one
tablespoon 
of
enigne 
oil 
on
top 
of 
the
pistons 
in 
low
ET 
4 

ENGINE
6 
Start 
the
engine 
and 
continue
idling 
as 
described
under
paragraphs 
I 
2 
and 
3 
above
When 
several
minutes 
have
passed 
and
the 
valve 
is
partially 
opened
read 
the
thermister 
indication 
It 
is 
correct
if 
the
reading 
falls 
between 
380C 
1000 
F 
and
550C
1300 
F
If 
the
reading 
is 
abnormal
replace 
the 
sensor
7
On 
the
engine 
equipped 
with
an 
idle
compensator 
as
service
option 
do 
as 
follows 
before
replacing 
the
sensor
Clog 
hose 
on 
idle
compensator 
side
by
twisting 
or
clamping 
it
and 
check 
the
temperature 
as
given 
in
paragraphs 
5 
and
6 
above 
If 
the 
thermometer
shO 
vs
correct
temperature
replace 
the 
idle
compensa
tOf 
if 
the
reading 
is 
abnormal
replace 
the 
sensor
CRANKCASE
EMISSION 
CONTROL
SYSTEM
This
system 
returns 
blow
by
gas 
to 
both 
the
intake
manifold 
and 
carburetor
air 
cleaner 
The 
Posirive 
Crankcase 
Ventilation
PCV 
valve 
is
provided 
to 
conduct 
crankcase 
blow
by
gas 
to 
the 
intake
manifold
Duirng 
partial 
throttle
operation 
of
the
enigne
the 
intake
manifold
sucks 
the
blow
by 
gas 
through 
the
valve
Normally 
the
capacity 
of 
the
valve 
is 
sufficient 
to
handle
any 
blow
by 
and
a 
small
amount 
of
ventilating 
air
The
ventilating 
air
is 
then
drawn 
from
the 
clean 
side 
of
the 
carburetor 
air
cleaner
through 
the
tube
connecting
carburetor 
air
cleaner 
to 
rocker 
cover
intu 
the 
crankcase
Under 
full
throttle 
condition 
the 
manifold 
vacuum 
is
insufficient 
to 
draw
the 
blow
by 
flow
through 
the 
valve
and 
its 
flow
goes
through 
the 
tube
connection 
in 
the
reverse 
direction
In 
cars 
with 
an
excessively 
high 
blow
by
some 
of
the 
flow
will
go 
through 
the 
tube
connection
to
the 
carburetor 
air
cleaner 
under
all 
conditions
j
Fresh 
air
Blow
by
gas
1m 
Air 
used 
in
filtering 
oil 
t
2
3
4 
PCV 
valve
Flame
arrester
Oil 
filler
cap
Baffle
plate 
and
steel
net
ECOOl
Fig 
ET 
3 
7 
Crankcase 
emission 
control
system 
at
partially 
throttle
open
ET 
22