radiator MAZDA 626 1987 Repair Manual

4C CONTROL SYSTEM
4. Make sure that the throttle valve is fully closed.
5. Turn the throttle sensor so that the BLUE wire volt-
age indicates within the specified closed range.
6. Tighten the throttle sensor mounting screw.
7. Recheck that the BLUE wire voltage is within the
specified range.
76G04C-195
8. Turn the ignition switch OFF.
9. Disconnect the SST and reconnect the throttle sen-
sor connector.
10. Disconnect the negative battery terminal and de-
press the brake pedal for 5 seconds to eliminate
the from the malfunction memory from the control
unit.
76G04C-196
76G04C-198
4C-106
IDLE SWITCH
Inspection
1. Disconnect the idle switch connector.
2. Check continuity between the switch and a ground.
Throttle valve condition Continuity
Fully closed Yes
Open No
3. If not correct, check condition of the wiring harness
of the idle switch. Replace the idle switch and throt-
tle body as an assembly, if necessary.
WATER THERMO SWITCH
Inspection
1. Remove the switch from the radiator.
2. Place the switch in water with a thermometer and
heat the water gradually.
3. Check for continuity of the switch with an
ohmmeter.
Coolant temp. Continuity
More than approx. 17°C (63°F) Yes
Less than approx. 10°C (63°F) No
4. If not correct, replace the water thermo switch.

5 QUICK START SYSTEM (QSS)
Glow plug relay GLOW PLUG RELAY
Inspection
1. As shown in the figure, connect the battery and
an ohmmeter to the relay.
2.
If
the ohmmeter shows continuity when the battery
is connected, and no continuity when the battery
is disconnected, the relay is good.
3. Replace the relay if it fails this test.
4BG05X-123
GLOW PLUG
Inspection
1. Check the continuity between the positive termi-
nal of the glow plug and cylinder head with a cir-
cuit tester.
2. If there is no continuity, replace the glow plug.
4BG05X-121
Removal
Remove in the following order:
1. Glow plug connector attaching nut.
2. Glow plug connector.
3. Glow plug
Installation
Install the glow plug, reverse order of removal.
76G05X-053
63G05X-336
5-80
WATER TEMPERATURE SWITCH
Removal
Remove the water temperature switch from the
radiator.
Installation
Install in the reverse order of removal.
Inspection
1. Place the water temperature switch in water with
a thermometer and heat the water gradually.
2. Check the temperature at which continuity exists
between the terminals.
3. Replace the switch, if necessary.
Specified temperature: above 28—32°C
(82—90°F)

14
BONNET 14— 2
STRUCTURAL VIEW 14— 2
REMOVAL 14— 3
INSTALLATION 14— 4 ADJUSTMENT 14— 4 TRUNK LID 14— 5 STRUCTURAL VIEW (SEDAN AND COUPE/MX-6) 14— 5 REMOVAL 14— 6 INSTALLATION 14— 7 ADJUSTMENT 14— 8
REAR HATCH 14— 9 STRUCTURAL VIEW 14— 9 REMOVAL 14— 10 INSTALLATION 14— 12 ADJUSTMENT 14— 12 FRONT DOORS 14—13
STRUCTURAL VIEW 14— 13
REMOVAL 14—15
INSTALLATION 14—17 ADJUSTMENT 14— 18 REAR DOORS 14—19 STRUCTURAL VIEW 14— 19 REMOVAL 14— 20
INSTALLATION 14— 21 ADJUSTMENT 14— 22 FRONT BUMPER 14— 23
STRUCTURAL VIEW 14—23 REMOVAL 14— 24 INSTALLATION 14—24 REAR BUMPER 14— 25
STRUCTURAL VIEW 14— 25 REMOVAL 14— 26
INSTALLATION 14— 26 RADIATOR GRILLE 14— 27 REMOVAL AND INSTALLATION 14— 27 HEADLIGHT AND COMBINATION LIGHT 14— 28 REMOVAL AND INSTALLATION 14— 28
AIMING 14— 31 REAR COMBINATION LIGHTS 14— 32 REMOVAL AND INSTALLATION 14— 32
REPLACEMENT OF REAR COMBINATION LIGHT LENS 14— 33
LICENSE PLATE LIGHT AND CARGO ROOM LIGHT 14— 35 REMOVAL AND INSTALLATION 14— 35
INTERIOR LIGHT AND MAP LIGHT 14- 36 REMOVAL AND INSTALLATION 14— 36
MOLDING AND GARNISH 14— 37
STRUCTURAL VIEW 14— 37 WINDSHIELD MOLDING 14— 38 WINDSHIELD LOWER MOLDING 14— 38 DRIP MOLDING 14— 38 BELT LINE MOLDING 14— 38 REAR WINDOW SIDE MOLDING (SEDAN) .14— 39 REAR WINDOW LOWER MOLDING
(SEDAN AND COUPE/MX-6) 14— 39 REAR WINDOW UPPER MOLDING 14— 39
BONNET MOLDING
(SEDAN AND HATCHBACK) 14— 39 QUARTER WINDOW MOLDING (COUPE/MX-6) 14— 40 QUARTER WINDOW MOLDING
(HATCHBACK) 14—40 QUARTER WINDOW MOLDING (SEDAN)... 14— 40 REAR WINDOW SIDE MOLDING (COUPE/MX-6) 14— 40
TRUNK LID MOLDING (SEDAN AND HATCHBACK) 14— 41
CENTER PILLAR GARNISH
(SEDAN AND HATCH BAC K/MX-6) 14— 41 REAR FINISHER (COUPE/MX-6 AND SEDAN) 14— 41 REAR FINISHER (HATCHBACK) 14— 41
SAIL GARNISH 14— 42
SIDE PROTECTOR MOLDING 14— 42 DOOR MIRROR 14— 44 DISASSEMBLY 14— 44 ASSEMBLY 14— 44 TRUNK-LID LOCK REMOTE RELEASE 14— 45 REMOVAL AND INSTALLATION 14— 45 FUEL FILLER LID REMOTE RELEASE 14— 46
REMOVAL AND INSTALLATION 14— 46 WINDSHIELD GLASS 14—47 STRUCTURAL VIEW 14—47 REMOVAL 14— 48 INSTALLATION 14— 49 REAR WINDOW GLASS 14— 52
STRUCTURAL VIEW 14— 52 REMOVAL 14— 54
INSTALLATION 14— 55 REAR HATCH GLASS 14— 58 STRUCTURAL VIEW 14— 58 REMOVAL 14— 59 INSTALLATION 14— 59 QUARTER WINDOW GLASS 14— 62 STRUCTURAL VIEW 14— 62
REMOVAL 14— 64 INSTALLATION 14—64
HEADLINER 14- 67 STRUCTURAL VIEW 14—67 REMOVAL 14— 69 INSTALLATION 14— 72 INSTRUMENT PANEL 14— 73 STRUCTURAL VIEW 14— 73
INSTALLATION VIEW 14— 74
REMOVAL 14— 75 INSTALLATION 14— 80 SLIDING SUNROOF 14— 81 STRUCTURAL VIEW 14— 81 REMOVAL 14— 82 INSTALLATION 14— 85 WINDSHIELD WIPER 14— 91
STRUCTURAL VIEW 14— 91
REMOVAL 14— 92
INSTALLATION 14— 93 ADJUSTMENT 14— 93 REAR WINDOW WIPER 14—94 STRUCTURAL VIEW (HATCHBACK) 14— 94 REMOVAL 14— 95 INSTALLATION 14—95 ADJUSTMENT 14— 96
HEADLIGHT WASHER 14— 97 REMOVAL AND INSTALLATION 14— 97 SEAT 14— 98 STRUCTURAL VIEW 14— 98 INSPECTION 14—100 SEAT BELTS 14—101
STRUCTURAL VIEW 14—101 INSPECTION 14—101
UNDERBODY PROJECTED DIMENSIONS.... 14—102 UNDERBODY STRAIGHT-LINE DIMENSIONS 14—104 76G14X-001

RADIATOR
GRILLE 1
4
RADIATOR GRILLE
REMOVAL AND INSTALLATION
1. Remove in the sequence shown in the figure, referring to removal note for the specially marked parts.
2. Install in the reverse order of removal, referring to installation note for the specially marked parts.
86U14X-065
1. Screw 2. Fasteners 3. Radiator grille
Removal Note
Fasteners
Push the tabs of the fasteners (5) with a small screw-
driver.
Installation Note
Insert the fasteners into the grille, then align with the
installation holes in the body and press in the grille.
86U14X-066
14—27

1 4 HEADLIGHT AND COMBINATION LIGHT
HEADLIGHT AND COMBINATION LIGHT
REMOVAL AND INSTALLATION
1. Disconnect the negative battery cable.
2. Remove in the sequence shown in the figure, referring to removal note for the specially marked parts.
3. Install in the reverse order of removal.
76G14X-005
1. Screw
2. Turn signal light assembly
3. Screw
4. Radiator grille
5. Bolts
6. Bolts
7. Headlight assembly
8. Screws
9. Light garnish
10. Headlight bulb
60 + 55W/55W
11. Parking light bulb 5W
12. Turn signal light bulb
21W
14—28

HEADLIGHT AND COMBINATION LIGHT 1 4
76G14X-006
1. Screw 6. Bolts
2. Turn signal light assembly 7. Fastener
3. Screw 8. Screw
4. Radiator grille 9. Light garnish
5. Bolts 10. Headlight assembly
11. Headlight bulb
60 + 55/55W
12. Parking light bulb 5W
13. Turn signal light bulb
21W
14—29

16 CONDENSER
CONDENSER
ON-VEHICLE INSPECTION
1. Check the condenser fins for blockage or damage.
If the fins are clogged, clean them with compressed air.
If the fins are bent, straighten them with a screwdriver or pair of pliers.
2. Check the condenser fittings for leakage.
Repair or replace, if necessary.
REMOVAL OF CONDENSER
1. Discharge the air conditioning system. (Refer to page 16—9.)
2. Remove the front grille and the air seal cover.
3. Disconnect the discharge flexible hose from the condenser inlet fitting.
4. Disconnect the liquid line pipe from the condenser outlet fitting.
Note:
Plug the open fittings immediately to keep moisture out of the system.
6. Remove the condenser.
Condenser Radiator
Hole
76G16X-637
INSTALLATION OF CONDENSER
1. Install the condenser by using the two bolts and two nuts.
2. Connect the liquid line pipe and the discharge flexible hose to the condenser.
Tightening torque:
Liquid line pipe: 15—25 Nm (1.5—2.5 m-kg, 11—18 ft-lb)
Discharge flexible hose: 15—22 N-m (1.5—2.2 m-kg, 11—16 ft-lb)
3. Install the front grille and the air seal cover.
4. If the condenser is replaced with a new one, supply compressor oil.
Compressor oil: 30 cc (1.83 cu in)
5. Evacuate, charge, and test the air conditioning system.
16—24

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