1987 MAZDA 626 water

30 TECHNICAL DATA
3A. COOLING SYSTEM (GASOLINE)
Engine model F6, F8, FE SOHC
Item FE DOHC ECE, Hong Kong
Singapore Middle East General

Cooling method Water-cooled, forced circulation

Water pump

Type Centrifugal, timing belt driven
Impeller diameter mm (in) 70 (2.76)
Number
of
impeller blades 6
Speed ratio 1
:
1.00 1
:
1.05
Water seal type Unified mechanical seal

Thermostat

Type Wax, 2-stage Wax
Start
to
open °C (°F) Sub: 83.5-86.5 (182-188) Main: 86.5-89.5 (188-193) 86.5-89.5 (188-193) 80.5-83.5 (177-182)
Full open °C (°F) 100 (212) 95 (203)
Lift mm (in) Sub: 1.5 (0.06) min.
Main: 8.0 (0.31) min. 8.5 (0.33) min.

Radiator

Type Corrugated
fin

Cap opening valve pressure kPa (kg/cm2,
psi)
74-103 (0.75-1.05,
11
-15)
Cooling system pressure kPa (kg/cm2,
psi)
103 (1.05,
15)
Cooling fan

Type Electric
Capacity W MTX 80 Capacity W ATX 120
Current A MTX 5
6 7.6
Current A ATX
—
8.0-11.0
Number
of
blades 4
Outer diameter mm (in) MTX 320 (12.6) Outer diameter mm (in) ATX 340 (13.4)
Switching temperature OFF -
ON
°C(°F) 97 (207) 91 (196)

Coolant

Capacity liters (US qt, Imp
qt)
With heater 7.5 (7.9, 6.6) Capacity liters (US qt, Imp
qt)
Without heater 7.0 (7.4, 6.2)
Protection Mixture percentage (volume)
%
Specific gravity
of
mixture
at
20°C (68 °F) Antifreeze solution
Protection Water Solution
Specific gravity
of
mixture
at
20°C (68 °F) Antifreeze solution Above -16°C (3°F) 65 35 1.054
Above -26°C (-15°F) 55 45 1.066
Above -40 °C (—40°F) 45 55 1.078

30-16

TECHNICAL DATA 30
3B. COOLING SYSTEM (DIESEL)
Item Engine model RF-CX, RF-N

Cooling method Water-cooled, forced circulation

Water pump

Type Centrifugal, timing belt driven
Water seal type Unified mechanical seal

Thermostat

Type Wax, two stage
Start
to
open °C (°F) Main valve:
86.5-89.5 (188-193)
78.5-
Sub valve: 81.5 (173-179)
Full open lift mm (in)/°C (°F) Main valve: 8.0 (0.31) Sub valve: 1.5 (0.06) min./100 (212) min./100 (212)

Radiator

Type Corrugated
fin

Cap opening valve pressure kPa (kg/cm2,
psi)
74—103 (0.75—1.05,
11
-15)
Cooling circuit checking pressure kPa (kg/cm2,
psi)
103 (1.05,
15)
Cooling fan

Type Electric
Number
of
blade 4
Outer diameter mm (in) 340 (13.4)
Switching temperature OFF -»
ON
°C (°F) 91 (196)
Voltage V 12
Capacity W-A 120-8.0-11.0

Coolant

Capacity liters (US qt, Imp
qt)
With heater 9.5 (10.0, 8.4) Capacity liters (US qt, Imp
qt)
Without heater 9.0 (9.5, 7.9)
Protection Mixture percentage (Volume) Specific gravity
of
mixture
at
20°C (68 °F) Antifreeze solution
Protection Water Solution
Specific gravity
of
mixture
at
20°C (68 °F) Antifreeze solution Above -16°C (3°F) 65 35 1.054
Above -26°C (-15°F) 55 45 1.066
Above -40°C (-40°F) 45 55 1.078

30-17

30 TECHNICAL DATA
4B. FUEL AND EMISSION CONTROL SYSTEMS (FUEL INJECTION FE)
Item Specifications

Fuel tank capacity Liters (US gal, Imp gal) 60 (15.9, 13.2)
Fuel pump
Type In-tank, electric motor
Fuel pump Fuel pressure kPa (kg/cm2, psi) 441-588 (4.5-6.0, 64-85) Fuel pump
Feeding capacity cc (cu in)/10 sec. 220 (13.4) min.
Air cleaner Element type Oil permeated
Accelerator cable Deflection
mm
(in) 1—3 (0.04-0.12)
Idle speed
rpm
ATX: 800 +58 (Neutral), ATX: 900 +600
(P
range)
Dash
pot
Adjustment speed
rpm
1,900-2.100
EGR control valve Starts
to
open mmHg (in Hg) 40-60 (1.6-2.4)
Air control valve Starts
to
open mmHg (in Hg) 180-280 (7.1-11)
Water thermo valve Opened
°C
(°F) Higher than 46—54 (115-129)
Water thermo switch Opened
At
radiator
°C
(°F) Lower than 15—19 (59—66)
Vacuum switch valve Starts to open mmHg (in Hg) 66—106 (2.6—4.2)
Water thermo sensor Resistance
-20°C (-4°F)k!) 14.5-17.8
Water thermo sensor Resistance 20°C (68°F)
kQ
2.2-2.7 Water thermo sensor Resistance
80°C (176°F)k!i 0.28-0.35
Throttle sensor
Resistance
at

fully closed
B
C kQ
4-6
Throttle sensor
Resistance
at

fully closed A
« B Q
Approx.
500

Throttle sensor Resistance
at
fully opened A
«• B kQ
Approx.
4.5
Throttle sensor
Setting Closed at mm (in) 0.4 (0.0157)
Throttle sensor
Setting Open at mm (in) 0.55 (0.022)
Air flow meter
Resistance
of

full closed

E2 « Vs fi
More than
20

Air flow meter
Resistance
of

full closed

E2 •+ Vc 0
100-300
Air flow meter
Resistance
of

full closed
E2 VB Q
200-400 Air flow meter
Resistance
of

full closed
Ei
•+ Fc Q OO
Air flow meter
Resistance
at
full open Ei
•+ Fc Q
0
Intake
air
thermo sensor Resistance
-20°C M°RkQ 13.6-18.4
Intake
air
thermo sensor Resistance 20°C (68°F) kfi 2.21—2.69 Intake
air
thermo sensor Resistance
60°C (140°RkQ 0.493-0.667
Pressure regulator Regulating pressure At idling kPa
(kg/cm
,
psi) 235-275 (2.4—2.8, 34-40)
Injector
Injection amount cc (cu in)/15 sec. 38-53 (2.3-3.2) Injector
Resistance
Q
12-16
Circuit opening relay Resistance STA Ei Q 15-30 Circuit opening relay Resistance B
Fc fi
80-150
Fuel Unleaded gasoline

30-20