1987 MAZDA 626 cooling

7B TROUBLESHOOTING (G4A-HL)
Procedure
76G07B-054
1. Connect a tachometer to the engine.
2. Shift the selector lever to D range.
3. Depress the brake pedal firmly with the left foot and gradually depress the accelerator pedal with
the right foot.
4. Read and note the engine speed as soon as it becomes constant, then release the accelerator pedal.
Caution
Steps 3 to 4 must be performed within 5 seconds.
5. Shift the selector to N range and run the engine at idle speed for at least one minutes.
Note This one minute idle period is performed to cool the ATF and prevent oil degradation.
6. Perform stall tests for the following ranges in the same manner.
(1) 2 range
(2) 1 range
(3) R range
Standard stall speed:
FE engine F8 engine
D.S.L range 2430—2530 rpm D.S.L range 2180—2280 rpm
R range 2390—2490 rpm R range 2140—2240 rpm
Caution
Always provide adequate cooling time between individual range stall tests.
7B-50

TROUBLESHOOTING 7C
Procedure
76G07C-025
1. Connect a tachometer to the engine.
2. Shift the selector lever to D range.
3. Depress the brake pedal firmly with the left foot, and gradually depress the accelerator pedal with
the right foot.
4. Read and note the engine speed as soon as it becomes constant; then release the accelerator pedal.
Caution
Steps 3 to 4 must be done within 5 seconds.
5. Shift the selector to N range and let the engine idle for one minute or more.
Note The idling cools the ATF and prevents oil degeneration.
6. Perform stall tests for the following ranges in the same manner.
(1) 2 range
(2) 1 range
(3) R range
Standard stall speed:
FE engine 2050—2150 rpm
F6 engine 1800—2050 rpm
Caution
Always provide adequate cooling time between individual range stall tests.
7C-15

1 0 OIL PUMP
2WS (Diesel engine, with CX)
r.a-11 N-m (0-8—1.1 m-kg. 5.8—8.0 tt-lb)
7.8—11 Nm (0,8—1.1 m-kg, 5.8—8.0 ft-lb)
7.8—11 Nm (0.8-1.1 m-kg, 5.8-8.0 ft-lb)
C3DSP-J
39-59 N-m (ED (4,0—6.0 m-kg, (7) ZB—43 ft-lb)
49—59 N m (5.0—6.0 m-kg, 36—43 ft-lb)
37—62 N-m (3.8—S.3 m-kg, 27—38 ft-lb)
76G10X-017
1. Drive belt cover
2. Belt
3. Cooling fan
4. Intake air pipe
5. Nut
6. Oil pump pulley
7. Pipes
8. Bolt
9. Starter
10. Bolt
Removal Note
Oil pump (2WS Diesel engine)
1. Hold the oil pump pulley with the SST, and remove
the pulley nut.
2. Slide the pulley forward. Remove the hose, pipes,
and the pump. 3. Remove the pulley.
76G10X-018
10—86

MAIN FUSE BLOCK
1
5

MAIN FUSE BLOCK
STRUCTURAL VIEW
LHD
and RHD
General, Middle East,
ECE
(Carburetor model)
0

U
%
s
5
»

00000 USE
THE
DESIGNATED FUSE ONLY
ECE
(EGI
model)
£
o 2Z
o u
^ *5

4
-
<
—
o
O
n

2
O
<

a
HI

<
°
I®
a
o o-S
Ul 51 Ui
^

tB USE
THE
DESIGNATED FUSE ONLY
>1

P

West Germany (Carburetor
and EGI
model)
Q
o o
^
*S

lu

u
<
EL
°
33 JZ< gis
2 ? «
Q-
o
S3 ill
™

N
TiSE
THE
DESIGNATED
FU

Unleaded fuel model
(EGI)

USE
THE
DESIGNATED FUSE ONLY
PTC
30A
(Sweden)
HEAD
40A
(Sweden)
BTN
40A
(Sweden)
LHD
and RHD
General,
ECE
(Diesel model) Except Sweden
1 T
1
•N

HEATER
[
40A (COOLING FAN
[
30A

z
<
m
3
MAIN
BOA
;

/I
HEAD
40A
ADD
FAN 30A

/ xx
West Germany (Diesel model)

fl
,
v

K
<
t
o

,o
,

p <
f—
o
0.
o

86U15X-004
15—9

JOINT
BOX AND FUSE
1
5
JOINT BOX AND FUSE
STRUCTURAL VIEW
Joint box Circuit breaker
(Rear window
defroster)
Reset button
Fuses
West Germany
(REAR FOG* RADIO 15A 15A (HEADCLEANER) 20A
(POWER 30A WIND) TAIL (LH) 15A STOP 15A
TAIL (RH) 15A METER 15A TURN 15A
ROOM 15A f(D00R LOCK) [ 30A c
HORN 5A
(AIR COND)' 15A (COOLING 20A FAN>I ENGINE 15A
(REAR 15A WIPER) WIPER 20A (SUN ROOF) [ 15A
ECE, LHD and RHD General (Diesel model)
. Q .
(REAR FOG) 15A J RADIO 15A (rHEADCLEAMEfii I joa J (POWER 1 30A WIND)j (DIM DIP) 15A ( HAZAARD ' I TAIL 15A METER 15A TURN 15A
' ROOM ' ISA j flBOOR LOCKl"1 L STOP 1SA -[(AIR COND) 15A J ' ENGINE 15A
(REAR 15A WIPER) WIPER 20A (SUN ROOF) I 16A
RHD General
only
UK, RHD General
(REAR FOG)
[
15A J
RADIO 15A (HEADCLEANER) 20A
(POWER 30A WIND) (DIM DIP) 15A HAZARD 10A
TAIL 15A METER 10A TURN 15A
ROOM 15A (DOOR LOCK) 30A STOP 15A
(AIR COND) 15A '(COOLING 20A FAN) ENGINE 15A
(REAR 15A WIPER) WIPER 20A (SUN ROOF) [ 15A ,
ECE, Middle East, LHD General
Q
(REAR FOG) 15A J RADIO 15A (HEADCLEANER) 20A
(POWER 30A WIND) HAZARD 10A
TAIL 15A METER 15A TURN 15A
ROOM 5A (DOOR LOCK) 3CA STOP tSA ] (AIR CONO)| . ISA jj| ((COOLING! ( ENGINE 1 J [
BOA
FAfJ)J [ 15A J
(REAR 15AWIP£R), ^ C WIPER "1[SUN HOOF?
1)J
[ 2QA
J
[ 15A
West Germany (Diesel model)

MAIN (fWl
ISA I
MALM (LM1
15A
DIM iLHI
ISA
PEAfl FOCii
I 'SA | RAQIO T5A I
HEAP CLEANEF*
1 I (POWEfl I
3PA WI^D;. TAIL (LH)
15A
)C
TAIL I ISA METER 1OA TURN 15A FIOQM
(DOOR LOC*C|
HOflN 15A Jt 1SA

(
AIR COND)
jy (COOUNQ
gqA FAN)
ENGINE 16A

|fl£AR WlPEFl!
ILJSi '
DEfOO
3 OA
Dtf
WtPEfl
USUNROQF Jl JPA H 15A [
86U15X-006
15-11

16
AIR CONDITIONING
SYSTEM
OUTLINE 16— 2
AIR DISTRIBUTION 16— 2
AIR CONDITIONING COMPONENTS 16— 4
TROUBLESHOOTING GUIDE 16— 5
CIRCUIT DIAGRAM 16— 6
REFRIGERATION SYSTEM 16— 8
COMPRESSOR 16—13
ON-VEHICLE INSPECTION 16—13
REMOVAL OF COMPRESSOR 16—13
DISASSEMBLY OF MAGNETIC
CLUTCH 16—14
DISASSEMBLY OF COMPRESSOR 16—16
ASSEMBLY OF COMPRESSOR 16—18
ASSEMBLY OF MAGNETIC CLUTCH 16—20
PERFORMANCE TEST OF
COMPRESSOR 16—22
INSTALLATION OF COMPRESSOR 16—23
CONDENSER 16—24
ON-VEHICLE INSPECTION 16—24
REMOVAL OF CONDENSER 16—24
INSTALLATION OF CONDENSER.. 16—24
RECEIVER-DRIER 16—25
ON-VEHICLE INSPECTION 16—25
REMOVAL OF RECEIVER-DRIER... 16—25
INSTALLATION OF
RECEIVER-DRIER 16—25
COOLING UNIT 16—26
ON-VEHICLE INSPECTION OF
EXPANSION VALVE 16—26
REMOVAL OF COOLING UNIT 16—26
DISASSEMBLY OF COOLING UNIT 16—27
INSPECTION OF EVAPORATOR.... 16—27
ASSEMBLY OF COOLING UNIT.... 16—27
INSTALLATION OF COOLING UNIT 16—28
REFRIGERANT LINES 16—29
ON-VEHICLE INSPECTION 16—29
REPLACEMENT OF REFRIGERANT
LINES 16—29
A/C RELAY 16—30
REMOVAL OF RELAY 16—30
INSPECTION OF A/C RELAY 16—30
INSTALLATION OF A/C RELAY 16—30
THERMOSTAT 16—30
ON-VEHICLE INSPECTION 16—30
REMOVAL OF THERMOSTAT 16-30
INSTALLATION OF THERMOSTAT. 16—30
REFRIGERANT PRESSURE SWITCH 16—31
76G16X-001

OUTLINE 16
The air distribution is shown in the figure.
"I.The door (D1) is used to select either fresh air from outside or recirculated air. Setting the
RECIRC/FRESH control lever (switch) to the FRESH position will allow outside air to come inside.
Setting the RECIRC/FRESH control lever (switch) to the RECIRC position will allow inside air to recir-
culate.
2. Outlet airflow is controlled by doors D3, D4, D5.
Moving (pushing) the mode control lever (switch) opens and shuts the doors (D3, D4, D5) and cre-
ates the air passage according to the lever position.
1) Setting the lever to the VENT position (push the VENT switch) creates the air passage to the venti-
lator outlets, and air comes into the passenger compartment from the ventilator outlets.
2) Setting the lever to the BI-LEVEL position (push the BI-LEVEL switch) creates the air passage
to the ventilator outlets and to the floor outlets.
3) Setting the lever to the HEAT position (push the HEAT switch) creates the air passage to the floor
outlets.
(A little air comes from the defroster outlets.)
4) Setting the lever to the DEF/HEAT position (push the DEF/HEAT switch) creates the air passage
to the floor outlets and to the defroster outlets.
5) Setting the lever to the DEF position (push the DEF switch) creates the air passage to the defroster
outlets.
3. The cooling or heating temperature is controlled by doors D2.
76G16X-002
16-3

16 OUTLINE
AIR CONDITIONING COMPONENTS
76G16X-003
1. Compressor 6. Low pressure pipe
2. Receiver-drier 7. High pressure hose
3. Condenser 8. Low pressure hose
4. Cooling unit 9. Service valve (High-pressure)
5. High-pressure pipe 10. Service valve (Low-pressure)
16—4