Page 116 of 548
Condition
Engine
hesitation
Engine
does
not
start
Engine
Fuel
Probable
cause
Main
jet
or
low
jet
clogged
By
pass
hole
idle
passage
clogged
Emulsion
tube
clogged
Incorrect
idling
adjustment
Secondary
throttle
valve
operating
improp
erly
Fuel
overflows
No
fuel
Idling
adjustment
incorrect
Fast
idle
adjustment
incorrect
Damaged
anti
dieseling
solenoid
EF
31
Corrective
action
Clean
Clean
tube
Clean
Correct
adjustment
Overhaul
and
clean
See
the
first
item
Check
pump
fuel
pipe
and
needle
valve
Adjust
Adju
t
Replace
Page 117 of 548
Engine
Fuel
SERVICE
DATA
AND
SPECIFICATIONS
GENERAL
SPECIFICATIONS
CARBURETOR
California
models
Non
caJ
ifornia
model
Manual
tranlDlWion
Automatic
transmission
Manual
transmission
FU
model
utomatic
transmission
Type
DCH306
6t
DCH306
63
DCH306
60E
DCH306
67
DCH306
68
3
DCH306
69
1
DCH306
60
2
DCH306
12
4
Primary
Secondary
Primary
Secondary
Primuy
Secondary
Primary
Secondary
Primary
Secondary
Outer
diameter
26
1
02
30
1
18
26
1
02
30
1
18
26
1
02
30
1
18
26
1
02
30
1
18
26
1
02
30
1
18
mm
in
Venturi
diameter
23
0
9t
27
1
06
23
0
91
27
1
06
23
0
91
27
1
06
22
0
87
27
1
06
23
0
91
27
1
06
mm
in
Main
jet
107
145
107
1145
106
145
1107
145
105
1145
104
2
t04
4
Main
air
bleed
95
180
95
180
1110
80
65
1M
195
80
Slow
jet
1145
150
145
150
145
150
146
150
45
150
Powerjet
143
43
140
148
2
48
138
140
4
1
With
A15
engine
2
4
For
Canada
models
3
Common
to
models
with
A14
and
AlS
engines
except
Canada
INSPECTION
AND
ADJUSTMENT
A
T
C
AIR
CLEANER
Air
con
trol
valve
partially
opens
Air
control
valve
fully
opens
Oc
OF
Oc
F
38
to
54
100
to
129
Above
55
131
IDLE
COMPENSATOR
Idle
compensator
partially
opens
Bi
metal
No
I
Bi
metal
No
2
Idle
compensator
fully
opens
Bi
metal
No
I
Bi
metal
No
2
Oc
OF
60
to
70
140
to
158
70
to
80
158
to
176
Oc
OF
Above
70
158
Above
80
176
FUEL
PUMP
Fuel
pressure
Fuel
pump
capacity
kgfcm2
psi
cc
cu
in
min
at
rpm
0
27
3
8
450
27
46
1
000
EF
32
Page 118 of 548
a
California
models
Non
california
modeli
Except
Canada
Canada
III
C
A4
A15
A14
AI5
A
4
a
M
T
AfT
AfT
M
T
A
T
M
T
FU
A
r
MfT
AfT
11
1
4
DCH306
61
DCH306
63
DCH306
69
DCH306
60E
DCH306
68
DCH306
67
DCH306
68
DCH306
60
DCH306
12
0
a
Fuel
level
adjustment
Fuel
level
from
top
of
19
0
75
19
0
75
19
0
75
19
0
75
19
0
75
19
0
75
19
0
75
19
0
75
19
0
75
carburetor
body
mm
in
H
Gap
between
vlave
stem
and
float
scat
mm
in
t5
0
59
IS
0
59
IS
0
59
IS
0
59
IS
0
59
IS
0
59
IS
0
59
IS
0
59
IS
0
59
H
1
3
to
1
7
1
3
to
1
7
1
3
to
1
7
1
3
to
1
7
1
3
to
1
7
1
3to17
1
3
to
1
7
1
3
to
1
7
1
3
to
1
7
h
0
051
to
0
051
to
0
051
to
0
051
to
0
051
to
0
051
to
0
051
ro
0
051
to
0
051
to
0
067
0
067
0
067
0
067
0
067
0
067
0
067
0
067
0
067
Bi
metal
setting
Center
of
Center
of
Center
of
Center
of
Center
of
Center
of
Center
of
Center
of
Center
of
Bi
metal
setting
index
mark
index
mark
index
mark
index
mark
index
mark
index
mark
index
mark
index
mark
index
mark
Bi
metal
resistance
3
7
ro
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
at
210C
700F
n
m
Fast
idle
adjustment
Fast
idle
0
73
to
0
84
1
00
to
1
14
1
00
to
1
14
0
73
to
0
84
1
00
to
1
14
0
73
to
0
84
1
00
to
1
14
0
73
to
0
84
m
earn
2nd
step
1
00
to
1
14
CO
T1
0
0287
to
0
0394
to
0
0394
to
0
0287
to
0
0394
to
0
0287
to
0
0394
to
0
0287
to
0
0394
to
S
W
Gap
between
throttle
valve
and
0
0331
0
0449
0
0449
0
0331
0
0449
0
0331
0
0449
0
0331
0
0449
Cl
carburetor
body
mm
in
Fast
idle
speed
at
2nd
earn
step
1
900
to
2
700
2
400
to
3
200
2
400
to
3
200
1
900
to
2
700
2
400
to
3
200
1
900
to
2
700
2
400
to
3
200
1
900
to
2
700
2
400
to
3
200
Cl
rpm
Vacuum
break
adjustment
1
80
to
1
98
1
80
to
1
98
1
80
to
1
98
1
80
to
1
98
1
80
to
1
98
1
98
to
2
16
1
80
to
1
98
1
80
to
1
98
1
80
to
1
98
Gap
between
choke
valve
0
0709
to
0
0709
to
0
0709
to
0
0709
to
0
0709
to
0
0780
to
0
0709
to
0
0709
to
0
0709
to
and
carburetor
body
mm
in
0
0780
0
0780
0
0780
0
0780
0
0780
0
0850
0
0780
0
0780
0
0780
Choke
unloader
adjustment
Gap
between
choke
valve
and
2
36
0
0929
2
36
0
0929
2
36
0
0929
2
36
0
0929
2
36
0
0929
2
17
0
0854
2
36
0
0929
2
36
0
0929
2
36
0
0929
carburetor
body
mmOn
Interlock
opening
of
primary
and
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
secondary
throttle
valves
mm
On
Dash
pot
adjustment
1
900
to
2
100
1
900
to
2
100
1
900
to
2
100
2
300
to
2
500
1
900
to
2
100
1
900
to
2
100
1
900
to
2
100
2
300
to
2
500
1
900
to
2
100
without
loading
rpm
Throttle
opener
operating
pressure
560
20
560
20
560
20
520
20
520
20
520
20
5
0
20
520
20
0
m
sea
level
and
760
mmHg
22
05
22
05
22
05
20
47
20
47
20
47
20
47
20
47
29
9
inHg
atmospheric
pressure
0
79
0
79
0
79
0
79
0
79
0
79
0
79
0
79
mmHg
inHg
Page 119 of 548
TIGHTENING
TORQUE
Anti
dieseling
solenoid
valve
kg
m
ft
Ib
Engine
Fuel
1
8
to
2
2
13
to
16
EF
34
Page 120 of 548
DATSUN
210
Model
8310
Series
SECTIONEC
EMISSION
CONTROL
SYSTEM
CONTENTS
GENERAL
DESCRIPTION
CRANKCASE
EMISSION
CONTROL
SYSTEM
DESCRIPTION
INSPECTION
EXHAUST
EMISSION
CONTROL
SYSTEM
DESCRIPTION
EARLY
FUEL
EVAPORATIVE
E
F
E
SYSTEM
AIR
INJECTION
SYSTEM
A
IS
AIR
INDUCTION
SYSTEM
A
I
S
EXHAUST
GAS
RECIRCULATION
E
G
R
1
CONTROL
SYSTEM
EC
2
EC
6
EC
6
EC
6
EC
7
EC
7
EC
8
EC
9
EC
18
EC
21
SPARK
T
MING
CONTROL
SYSTEM
CATALYTIC
CONVERTER
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
DESCRIPTION
OPERATION
REMOVAL
AND
INSTALLATION
INSPECTION
SERVICE
DATA
AND
SPECIFICATIONS
INSPECTION
AND
ADJUSTMENT
TIGHTENING
TORQUE
SPECIAL
SERVICE
TOOLS
EC
26
EC
33
E
C
35
EC
35
EC
36
EC
36
EC
36
EC
38
EC
38
EC
38
EC
39
Page 124 of 548
Emission
Control
System
CANADA
MODEL
1
Distributor
2
Vacuum
delay
valve
AfT
3
Thermal
vacuum
valve
E
G
R
4
Throttle
opener
vacuum
control
valve
S
To
air
cleaner
6
Throttle
opener
servo
diaphragm
7
Carbon
canister
8
Vacuum
motor
9
From
vacuum
motor
to
temperature
sensor
10
E
G
R
control
valve
11
Carburetor
12
From
idle
compensator
to
intake
manifold
13
To
A
B
valve
14
Anti
backltre
valve
A
B
valve
15
Vacuum
switching
valve
M
T
@
CD
ft
o@o
0
LA
T
CID
om
fuel
tank
Intake
manifold
Intake
manifold
@
It
Il
9
EC138A
Fig
EC
4
Emission
Control
System
Canada
model
EC
5
Page 126 of 548
Emission
Control
System
EXHAUST
EMISSION
CONTROL
SYSTEM
DESCRIPTION
The
exhaust
emission
control
system
is
made
up
of
the
following
components
Early
fuel
evaporative
system
E
F
E
Air
injection
system
Air
induction
system
E
G
R
system
Spark
tirningcontrol
system
M
T
model
Spark
timing
control
system
A
T
model
Catalyst
Non
California
California
models
models
except
CanadaY
FU
model
Manifold
stove
Heat
valve
Air
pump
C
A
C
valve
A
B
valve
Check
valve
Air
pump
Air
relief
valve
A
B
valve
Check
valve
E
G
R
control
valve
Thermal
vacuum
valve
3
port
type
B
P
T
valve
Vacuum
switching
valve
Top
switch
Thermal
vacuum
valve
3
port
type
Vacuum
delay
valve
Non
California
models
only
Vacuum
switching
valve
Top
switch
Thermal
vacuum
valve
3
port
type
Vacuum
delay
valve
Thermal
vacuum
valve
3
port
type
Catalytic
converter
EC
7
Canada
models
Air
induction
valve
A
B
valve
E
G
R
control
valve
Thermal
vacuum
valve
2
port
type
B
P
T
valve
E
G
R
control
valve
Thermal
vacuum
valve
2
port
type
Vacuum
switching
valve
Top
switch
Catalytic
converter
Vacuum
delay
valve
Page 127 of 548
Emission
Control
System
EARLY
FUEL
EVAPORATIVE
E
FE
SYSTEM
DESCRIPTION
@
jl
D
W
o
0
0
UL
@
1
Intake
manifold
9
Screw
2
Stove
gasket
10
Thermostat
spring
3
Mar
fold
stove
11
Heat
control
valve
4
Heat
shield
plate
12
Control
valve
shaft
5
Snap
ring
13
Exhaust
manifold
6
Countczwcight
14
Cap
7
Key
15
Bushing
8
Stopper
pin
16
Coil
spring
The
early
fuel
evaporative
system
is
provided
with
a
chamber
above
a
manifold
stove
mounted
between
the
intake
and
exhaust
manifolds
During
engine
warming
up
air
fuel
mixture
in
the
carburetor
is
heated
in
the
cham
ber
by
exhaust
gas
This
reuslts
in
improved
evaporation
of
atomized
fuel
droplets
in
the
mixture
and
in
smaller
content
of
hydrocarbons
HC
in
the
exhaust
gas
especially
in
cold
weather
operation
OPERATION
The
counterweight
rotates
counter
clockwise
and
stops
at
the
stopper
pin
mounted
on
the
exhaust
manifold
while
the
engine
temperature
is
low
With
this
condition
the
heat
control
valve
is
in
the
fully
closed
position
obstructing
the
flow
of
exhaust
gas
As
engine
temperature
goes
up
and
the
ambient
temperature
becomes
high
enough
to
actuate
the
thermostat
spring
the
counterweight
begins
to
j
@
l
7
1
1
5
If
@
I
Exhaust
gas
flows
valve
dosed
valve
opened
EC247
Fig
EC
8
Early
Fuel
Eaaporatiae
E
F
E
System
rotate
clockwise
and
again
comes
into
contact
with
the
stopper
pin
With
this
condition
the
heat
control
valve
is
in
the
full
open
position
and
exhaust
gas
passes
through
the
exhaust
manifold
without
heating
the
manifold
stove
REMOVAL
AND
INSTALLATION
1
Snap
ring
2
Lock
bolt
3
Key
4
Counterweight
5
Thermosta
t
spring
6
Coil
spring
7
Heat
controlvalve
EC913
8
Valve
shaft
Fig
EC
9
KF
E
Sy
tem
Component
EC
8
