MAZDA 626 1987 Workshop Manual
Manufacturer: MAZDA, Model Year: 1987, Model line: 626, Model: MAZDA 626 1987Pages: 1865, PDF Size: 94.35 MB
Page 371 of 1865
Page 372 of 1865
B : Black
G : Green
O : Orange
L : Blue
W: White
Br: Brown
m 00 <
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m
>
Page 373 of 1865
4A OUTLINE
EMISSION COMPONENTS LOCATION
ECE, Hong Kong, and Singapore
Dashpot*
Reed valve
Solenoid valve*2 (Ignition timing control system)
Vacuum switch*5
Anti-afterburn valve
Choke opener
Idle-up solenoid valve^*5
or coasting leaner*6
Water thermo switch
Thermo valve*6
Water thermo switch
PTC heater*5
Air bypass solenoid valve*3
Solenoid valve*5
(Choke opener)
jr'-f
Choke breaker diaphragm
Solenoid valve*5 (Main air bleed control system)
Solenoid valve (P/S)*1
Solenoid valve (A/C)*1
Engine control unit
Fuel pump
*1 If equipped
*2 FE and F8 ATX
*3 F8 MTX and FE
*4 MTX
*5 FE and F8
*6 F6
76G04A-008
4A—8
Page 374 of 1865
General and Middle East
OUTLINE 4A
Dashpot
Choke opener
Thermo valve*3
Water thermo switch
Charcoal canister*3
Vacuum switch*2
Solenoid valve*2
(Main air bleed control system)
Solenoid valve (P/S)*1
Solenodi valve (A/C)*1
Engine control unit*2
Water thermo switch
*1 If euqipped
*2 FE and F8 General
*3 Middle East
*4 Middle East MTX
76G04A-009
4A-9
Page 375 of 1865
4A OUTLINE
FE 8Valve—Unleaded Fuel
Read valve Vacuum switch valve Air cleaner
Slow fuel cut
.. . solenoid valve Air bypass
solenoid^ valve^. Engine control unit
EGR control valve
Solenoid valve (for P/S)*
Solenoid valve (for A/C)*
Catalytic converter
* If equipped
4 A—10
76G04A-010
Page 376 of 1865
OUTLINE 4A
Exhaust System
Except FE 8Valve—Unleaded Fuel
Front silencer ATX
Main silencer
FE 8Valve—Unleaded Fuel
Exhaust manifold Catalytic converter
M
Only MTX
Front
Middle silencer
76G04A-011
4A-11
Page 377 of 1865
4A OUTLINE
COMPONENT DESCRIPTIONS
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4A-12
Page 378 of 1865
OUTLINE
4A
Previous
626
Unlead-
ed
fuel
O O O O O O X O O O X
Previous
626
Leaded
fuel
O X X O O X X X O X
New
626
FE
8
Valve
Unlead-
ed
fuel
o O O O O O X X O O O
New
626
Sin-
gapore
o O X O O m O
O
(FE
&
F8)
O
O
(FE
&
F8)
O O
New
626
Middle
East
o X X O O X X X X X O
New
626
General
X
O
(FE
& F8)
X O O X
O
(FE
&
F8)
O
(FE
&
F8)
O
(FE
&
F8)
X o
New
626
ECE
&
Hong
Kong
o O X O O * O O O O O o
Remark
• Adjustment
speed:
2,200
±
100
rpm
(in
neutral).
• MTX • Operation:
Coolant
tempera-
ture
more
than
50°C
(122°F).
Mechanical
type
Installed
on
carburetor.
Improvement
of
product
quality.
Function
Allows
throttle
to
gradually
close
during
deceleration.
Reduces
CO
and
HC
emission.
Detects
electrical
signal
from
in-
put
devices
and
controls
output
devices. Supplies
exhaust
gas
to
intake
manifold
to
reduce
NOx
Filters
fuel
Provides
fuel
to
carburetor.
Detects
when
throttle
valve
fully
closed. Opens
fuel
passage
to
secon-
dary
stage
of
carburetor.
Controls
shutter
valve
by
intake
air
temperature. Prevents
carburetor
icing.
Supplies
fresh
air
to
exhaust
manifold
to
reduce
CO
and
HC
emissions. Prevents
fuel
from
flowing
into
two-way
or
three-way
check
valve
Component
Dashpot Engine
Contorol
Unit
EGR
Control
Valve
Fuel
Filter
Fuel
Pump
Idle
Switch
Idle-up
Solenoid
Valve
Intake
Air
Temperature
Control
Valve
PTC
Heater
Reed
Valve
Separator
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4 A—13
Page 379 of 1865
4A
OUTLINE
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76G04A-012
4 A—14
Page 380 of 1865
OUTLINE 4A
SPECIFICATIONS
F6 & F8 Engine
Engine F6 F8
Specification General Singapore General
ECE,
Hong Kong, &
Singapore
Idle speed
rpm
MTX 800
+58
Idle speed
rpm
ATX 950
t5§
(in N range)|
900 +5§ (in N
range)
CO concentration
%
2.0
± 0.5
(Without secondary
air
injection)
Carburetor
Type Down draft, two barrel
Throat diameter
mm (in)
Primary 30 (1.18) Throat diameter
mm (in)
Secondary 34 (1.34)
Venturi diameter
mm
(in) Primary 23.5 (0.93) Venturi diameter
mm
(in) Secondary 29.0 (1.14)
Main nozzle
mm (in)
Primary 2.6 (0.10) Main nozzle
mm (in)
Secondary 2.8 (0.11)
Main
jet mm (in)
Primary MTX 1.10 (0.0433) 1.09 (0.0429) 1.14 (0.045)
Main
jet mm (in)
Primary ATX 1.10 (0.0433) 1.08 (0.0425) 1.12 (0.044) Main
jet mm (in)
Secondary 1.50 (0.059)
Main
air
bleed mm (in)
Primary MTX 0.60 (0.024) 0.60 (0.024) 0.55 (0.022) Main
air
bleed mm (in)
Primary ATX 0.60 (0.024) 0.80 (0.031) 0.60 (0.024) Main
air
bleed mm (in) Secondary 0.50 (0.020)
Slow
jet mm (in)
Primary 0.48 (0.019) 0.46 (0.018) Slow
jet mm (in)
Secondary 1.00 (0.039) 1.10 (0.043)
Slow
air
bleed mm (in)
Primary No.1 0.80 (0.031)
Slow
air
bleed mm (in)
Primary No.2 1.90 (0.075) Slow
air
bleed mm (in) Secondary No.1 1.00 (0.039) 0.80 (0.031) Slow
air
bleed mm (in) Secondary No.2 0.50 (0.020)
Power
jet mm (in)
0.50 (0.0201
Fast idle adjustment
mm (in)
Clearance between
Drimarv
throttle valve and bore
1.40-1.76 (0.055—0.069) MTX: 0.48-0.64 (0.019-0.025) ATX: 0.56-0.72 (0.022-0.028)
Float level adjustment mm (in)
Max. fuel flow
"L"
Clearance between
flo
44 (17.3)
at and
air
horn without aasket Float level adjustment mm (in) Fuel stop
"H"
12.5(0.49)
Clearance between float and
air
horn without aasket; float lowered
by
own weight
Choke breaker diaphragm mmHg (inHg)
Start 180-240 (7.1—9.5) 100-160 (3.9—6.3) Choke breaker diaphragm mmHg (inHg) Stop 290-350 (11.4—13.8) 220—280 8.7—11.01
Choke opener mmHg (inHg) Start 35-65 (1.4-2.6)
...
35-65 (1.4-2.6) Choke opener mmHg (inHg) Stop
......
130-190 (5.1-7.5) 130-190 (5.1-7.5)
Fuel tank capacity
Liters (US gal, Imp gal) 60 (15.9, 13.2)
Fuel Dump
Delivery pressure kPa (kg/cm2,
psi)
20-26 (0.20-0.27, 2.8—3.8)
Feeding capacity cc/min (cu in/min) More than 860 (52.5)
at
idle
Fuel filter
Type Paper element with magnet
Air cleaner
Fresh-Hot switching Manual Diaphragm type
Element tvoe Oil permeated paper
Fuel specification Leaded regular
76G04A-513
4 A—15