oil temperature MAZDA 626 1987 User Guide

1 C ON-VEHICLE MAINTENANCE (CYLINDER HEAD)
CYLINDER HEAD
Removal
1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Remove in the sequence shown in the figure referring to the removal note for specially marked parts.
76G01C-031
1. Accelerator cable
2. Air cleaner
3. Brake vacuum pipe
4. Intercooler pipe and hose*
5. Drive belt cover
6. Vacuum pump drive belt
7. Fuel hose
8. Water temperature switch
connector
9. Glow plug connector
10. Water thermo switch con-
nector
11. Heat gauge unit connector
12. Boost air temperature sen-
sor connector*
13. Injection pipes
14. Upper radiator hose
15. Water hose
(thermostat—FIR)
16. Oil level gauge and stay
bolt
17. Oil pipe bolt
18. Timing belt (Refer to page
1C—11)
19. Cylinder head cover
20. Camshaft pulley
21. Rear camshaft pulley
76G01C-032
22. Injection pump pulley
23. Seal plate
24. Water hose and pipe
25. Comprex supercharger
drive belt*
26. Heat insulator*
27. Exhaust manifold stay
28. Front exhaust pipe
29. Cylinder head bolt
30. Cylinder head
31. Cylinder head gasket
32. Comprex supercharger*
33. Exhaust manifold
34. Intake manifold
Note
* marked parts are equipped only for the RF-CX.
1C-16

INSTALLATION 1C
Heater Hose
Connect the heater hoses.
Note
Position the hose clamp in the original loca-
tion on the hose and squeeze the clamp lightly
with large pliers to ensure a good fit.
86U01X-221
Connector Location
Install each harness as shown in the figure.
1. Alternator
2. Boost air temperature sensor (RF-CX)
3. Heat gauge unit
4. Water thermo switch
5. Pick up coil
6. Glow cord
7. Front harness connector and ground
76G01C-222
8. Fuel cut valve
9. Oil pressure switch
10. Starter
11. Water temperature switch
12. Transaxle harness
13. Grounds
1C—95

2 A TROUBLESHOOTING GUIDE
SPECIFICATIONS
Engine model Item . FEDOHC F6, F8, FE SOHC
Lubrication system Force-fed
Oil pump
Type Trochoid gear Crescent gear
Oil pump Regulated pressure kPa (kg/cm2, psi) 490 (5.0, 71) 392 (4.0, 57) Oil pump
Oil pressure kPa (kg/cm2, psi)
1,000 rpm 147-245 (1.5-2.5, 21-36) Oil pump
Oil pressure kPa (kg/cm2, psi) 3,000 rpm 343—441 (3.5-4.5, 50-64) 294-392 (3.0-4.0, 43—57)
Oil filter Type Full-flow, paper element Oil filter Relief pressure differential kPa (kg/cm2, psi) 98 (1.0, 14)
Oil cooler Type Water cooled, 6-layer Water cooled, 4-layer
Oil warning pressure kPa (kg/cm2, psi) 29 (0.3, 4.3)
Oil capacity
Total (dry engine) liters (US qt, Imp qt) 4.3 (4.5, 3.8)
Oil capacity Oil pan liters (US qt, Imp qt) 3.6 (3.8, 3.2) Oil capacity
Oil filter liters (US qt, Imp qt) 0.2 (0.21, 0.18) 0.3 (0.32, 0.26)
Engine oil (API service) SD, SE, or SF
76G02A-003
Recommended SAE Viscosity
Temperature j0pj
-30 -20 -10 0 10 20 30 40 50 I l I I 1 < ! I I Temperature j0pj i i i i I i 1 1
-20 0 20 40 60 80 100 120
Engine oil Engine oil
5W-30 X 30 >
Engine oil Engine oil
5W-20 > < 20W-20 > < 40
Engine oil < 10W-30 > Engine oil
< 10W-40 10W-50
Engine oil Engine oil
< 20W-40 20W-50
Engine oil
Temperature range anticipated before next oil change, °C(°F)
TROUBLESHOOTING GUIDE
Problem Possible Cause Remedy Page
Engine hard
starting
Improper engine oil
Insufficient engine oil
Replace
Add oil
2A— 5
2A— 5
Excessive oil con-
sumption
Oil working up or working down
Oil leakage
Refer to Section 1
Repair
Oil pressure drop Insufficient oil
Oil leakage
Worn or damaged oil pump gear
Worn plunger (inside oil pump) or weak spring
Clogged oil strainer
Excessive main bearing or connecting rod bearing
clearance
Add oil
Repair
Replace
Replace
Clean
Refer to Section 1
2A- 5
2A-11
2A-11
Warning lamp illu-
minated while en-
gine running
Oil pressure drop
Malfunction of oil pressure switch
Malfunction of electrical system
As described above
Refer to Section 15
Refer to Section 15
76G02A-004
2A—4

OUTLINE 2B
SPECIFICATIONS
Item Engine model RF-CX RF-N

Lubrication system Force-fed
Type Trochoid gear
Oil pump Gear width mm (in) 7 (0.28)
Regulated pressure kPa (kg/cm2,
psi)
510-618 (5.2 -6.3, 74—90)
Oil filter
Type Combined, paper element
Oil filter
Relief pressure differential kP (kg/cm2,
psi)
78-118 (0.8--1.2, 11-17)
Oil cooler Type Water cooled, 10 layer Water coold,
4
layer
Oil filter body
Regulated pressure kPa (kg/cm2,
psi)
402—481
(4.1
-4.9, 58—70)
Oil filter body
Oil cooler relief pressure differential kPa (kg/cm2, psi) 177-216 (1.8 -2.2, 26-31)
Oil warning lamp activation pressure kPa (kg/cm2,
psi)
29 (0.3, 4.3)
Oil capacity
Total (dry engine)
Oil pan
Oil filter
liters (US qt, Imp
qt)

liters (US qt, Imp
qt)

liters (US qt, Imp
qt)

6.1 (6.4, 5.4)
5.0 (5.3, 4.4)
0.5 (0.52, 0.44)
Engine oil type API service CD CC,
CD
76G02B-003
Recommended SAE Viscosity
CC) Temperature
—30 —20 —10 0 10 20 30 40 50 i i i i i i i ii CC) Temperature i i II i i i i —20 0 20 40 60 80 100 120
Engine oil
5W-30 >
Engine oil
< 10W-30 >
< 20W-20 >
< 15W-40 >
Engine oil
Engine oil
Temperature range anticipated before next oil change, °C(°F)
76G02B-004
2B-3

Diaphragm

Intake air temperature
Water thermo switches*2 Vacuum switch*2 E/L switches*2 Inhibitor switch*2 Ignition coil
Fuel pump
Water thermo
switch*2
(on radiator)
*1 MTX
*2 Except F6
*3 F6
*4 Except F8 ATX and F6
*5 F6 MTX
*6 Except F8 ATX and F6 ATX
*7 F8 MTX and FE

4 A IGNITION TIMING CONTROL SYSTEM
IGNITION TIMING CONTROL SYSTEM
F8 and FE (12-VALVE)—ATX (ECE, Singapore, and Hong Kong)
Ignition coil
76G04A-160
This system consists of the distributor, solenoid valve, and several switches, vacuum to the vacuum
control unit of the distributor is cut when the conditions below are met.
Item Condition
Engine speed Below 2,300 rpm
Selector lever position Other than P and N range
Coolant temperature Engine coolant: below 72°C (162°F) Radiator coolant: above 17°C (65°F)
4A—80

CONTROL SYSTEM 4 A
Terminal
(Wire color) Connected to Condition Voltage

2A
(YL)
Ignition coil Ignition switch
ON or
engine running Battery voltage
2B (LB) Fan speed control switch Fan speed control switch
in
3rd
or
4th position Below 1.5 V 2B (LB) Fan speed control switch
Fan speed control switch OFF Battery voltage
2C
(BL)
Rear defroster switch Rear defroster switch
ON
Below 1,5V 2C
(BL)
Rear defroster switch
Rear defroster switch OFF Battery voltage
2D
(LG)
A/C switch A/C operated Below 1,5V 2D
(LG)
A/C switch
A/C not operated Battery voltage
2E
(RG)
Headlight switch Headlight switch OFF Below 1.5 V 2E
(RG)
Headlight switch
Headlight switch
ON
Battery voltage
2F
(GW)
Water thermo switch
(Radiator)
Radiator coolant temperature below 17°C (63°F) Below 1.5V 2F
(GW)
Water thermo switch
(Radiator) Radiator coolant temperature above 17°C (63°F) Battery voltage
2G
-— —

2H
(L)
Water thermo switch (In-
take manifold)
Engine coolant temperature below 72°C (162°F) Below 1,5V 2H
(L)
Water thermo switch (In-
take manifold) Engine coolant temperature above 72°C (162°F) Battery voltage
21
(LY)
Vacuum switch Vacuum less than 200 mmHg (7.9 inHg) Below 1.5V 21
(LY)
Vacuum switch
Vacuum more than 200 mmHg (7.9 inHg) Battery voltage
2J (RL) OD release solenoid valve Engine coolant temperature below 72°C (162°F) Below 1.5V 2J (RL) OD release solenoid valve
Engine coolant temperature above 72°C (162°F) Battery voltage
2K
(-)

— — -

2L (BR)
Inhibitor switch "N"
or "P"
range Below 1.5V 2L (BR)
Inhibitor switch
Others Battery voltage
2M (BY) Ignition switch
(START position)
Ignition switch
ON
Below 1,5V 2M (BY) Ignition switch
(START position) Cranking Battery voltage
2N
(LsB) Idle switch Idling Battery voltage 2N
(LsB) Idle switch
Accelerator pedal depressed Below 1,5V

76G04A-170

{ 2M 2K 21
X
2F 2C
2A

2N 2L 2J 2H 2F 2D 2B
(11 X X
1C 1 A^j
1J 1H 1F 1D 1B

FE and F8 Engine — MTX (ECE, Hong Kong, and Singapore)
Terminal (Wire color) Connected to Condition Voltage

A
(RG) Headlight switch Headlight switch
ON
Below 1,5V A
(RG) Headlight switch
Headlight switch OFF Battery voltage
B
(B)
Ground
—
Below 1,5V

4A-87

4A CONTROL SYSTEM
Terminal (Wire color) Connected to Condition Voltage

C (BL) Rear defroster switch Rear defroster switch
ON
Below 1,5V C (BL) Rear defroster switch
Rear defroster switch OFF Battery voltage
D
(LG) A/C switch A/C operated Below 1,5V D
(LG) A/C switch
A/C not operated Battery voltage
E (LY) Solenoid valve (Main
air
bleed control) Intake manifold vacuum more than 300 mmHg (11.8 inHg), and radiator coolant temperature above 17°C (63 °F)
Battery voltage E (LY) Solenoid valve (Main
air
bleed control)
Others Below 1,5V
F
(GW)
Water thermo switch
(Radiator) Radiator coolant temperature below 17°C (63°F) Below 1,5V F
(GW)
Water thermo switch
(Radiator) Radiator coolant temperature above 17°C (63°F) Battery voltage
G (YL)
Ignition coil Ignition switch
ON or
engine running Battery voltage
H
(L)
Water thermo switch (Intake manifold) Engine coolant temperature below 72°C (162°F) Below 1,5V H
(L)
Water thermo switch (Intake manifold) Engine coolant temperature above 72°C (162°F) Battery voltage
J (BW) Ignition switch Ignition switch
ON
Battery voltage
K (GO) Solenoid valve (Choke opener) Radiator temperature below 17°C (63°F)
or
during cranking and
27
sec. after engine starts Below 1,5V K (GO) Solenoid valve (Choke opener)
Others Battery voltage
L (LsB) Idle switch Idling Battery voltage L (LsB) Idle switch
Accelerator pedal depressed Below 1,5V
M
(GL)
Air bypass solenoid valve Idle switch OFF and engine speed above approx. 2,100 rpm Below 1,5V M
(GL)
Air bypass solenoid valve
Others Battery voltage
0
(BY)
Ignition switch
(START position)
Ignition switch
ON
Below 1,5V 0
(BY)
Ignition switch
(START position) Cranking Battery voltage
P
(LW) Solenoid valve (A/C) A/C switch
ON
and engine speed below approx.
2,300
rpm

Below 1,5V P
(LW) Solenoid valve (A/C)
Others Battery voltage
Q (YW) Idle-up solenoid valve Headlight switch ON, rear defroster switch ON,
fan
speed control switch
is
3rd
or
4th position, A/C oper-ated,
or
engine coolant temperature below 72°C (162°F)
Below 1,5V Q (YW) Idle-up solenoid valve
Others Battery voltage
R
(LB)
Fan speed control switch Fan speed control switch
in
3rd
or
4th position Below 1,5V R
(LB)
Fan speed control switch
Fan speed control switch OFF Battery voltage

76G04A-171

f ° O M K I G E C
R P N L J H F D B

4A-88

CONTROL SYSTEM 4 A
FE and F8 Engine — ATX (General)
Terminal (Wire color) Connected to Condition Voltage

1A
(BW)
Ignition switch Ignition switch
ON
Battery voltage
1B (GR) Solenoid valve (Main
air
bleed control) Others Battery voltage 1B (GR) Solenoid valve (Main
air
bleed control) Radiator coolant temperature below 17°C (63°F)
or
intake manifold vacuum more than 200 mmHg (7.9 inHg)
Below 1,5V
1C
— — —

1D
— — —

1E
— — —

1F
— --

1G
-—

1H
(LW) Solenoid valve (A/C) A/C operated Below 1,5V 1H
(LW) Solenoid valve (A/C)
Others Battery voltage
11
(LW) Idle-up solenoid valve Inhibitor switch OFF and, headlight switch ON, rear defroster switch ON, fan speed control switch
is 3rd
or 4th position, A/C operated,
or
engine coolant tem-perature below 72°C (162°F)
Below 1,5V 11
(LW) Idle-up solenoid valve
Others Battery voltage
1J
(B)
Ground
—
Below 1.5V
2A (YL) Ignition coil Ignition switch
ON or
engine running Battery voltage
2B (LB) Fan speed control switch Fan speed control switch
in
3rd
or
4th position Below 1.5V 2B (LB) Fan speed control switch
Fan speed control switch OFF Battery voltage
2C
(BL)
Rear defroster switch Rear defroster switch
ON
Below 1,5V 2C
(BL)
Rear defroster switch
Rear defroster switch OFF Battery voltage
2D
(LG) A/C switch A/C operated Below 1,5V 2D
(LG) A/C switch
A/C not operated Battery voltage
2E
(RG)
Headlight switch Headlight switch
ON
Below 1,5V 2E
(RG)
Headlight switch
Headlight switch OFF Battery voltage
2F
(GW)
Water thermo switch
(Radiator)
Radiator coolant temperature below 17°C (63°F) Below 1.5V 2F
(GW)
Water thermo switch
(Radiator) Radiator coolant temperature above 17°C (63°F) Battery voltage
2G
— — —

2H
(L)
Water thermo switch
(Intake manifold) Engine coolant temperature below 72°C (162°F) Below 1,5V 2H
(L)
Water thermo switch
(Intake manifold) Engine coolant temperature above 72°C (162°F) Battery voltage
21 (LB)
Vacuum switch Vacuum less than 200 mmHg (7.9 inHg) Below 1.5V 21 (LB)
Vacuum switch
Vacuum more than 200 mmHg (7.9 inHg) Battery voltage
2J
(RL)
OD release solenoid Engine coolant temperature below 72°C (162°F) Below 1,5V 2J
(RL)
OD release solenoid
Engine coolant temperature above 72°C (162°F) Battery voltage

4A-89

4A CONTROL SYSTEM
Terminal
(Wire color) Connected to Condition Voltage

2K
— — —

2L
(BR) Inhibitor switch "P"
or "N"
range Below 1,5V 2L
(BR) Inhibitor switch
Others Battery voltage
2M
(BY)
Ignition switch
(START position)
Ignition switch
ON
Below 1,5V 2M
(BY)
Ignition switch
(START position) Cranking Battery voltage
2N
— — —
76G04A-172
(2M X
2
X
2F 2C

X 2L
2J 2H 2F 2D 2B

fll X >< X

1J 1H
>< X
1B

FE and F8 Engine — MTX (General)
Terminal (Wire color) Connected to Condition Voltage

A
(W)
Headlight switch Headlight switch
ON
Below 1,5V A
(W)
Headlight switch
Headlight switch OFF Battery voltage
B
(B)
Ground
—
Below 1,5V
C
(BL) Rear defroster switch Rear defroster switch
ON
Below 1,5V C
(BL) Rear defroster switch
Rear defroster switch OFF Battery voltage
D
(LG) A/C switch A/C operated Below 1.5V D
(LG) A/C switch
A/C not operated Battery voltage
E
(LB) Solenoid valve (Main
air

bleed control)
Intake manifold vacuum more than 300 mmHg (11.8 inHg), and radiator coolant temperature above 17°C (63 °F)
Battery voltage E
(LB) Solenoid valve (Main
air

bleed control)
Others Below 1.5V
F
(GW)
Water thermo switch
(Radiator)
Radiator coolant temperature below 17°C (63°F) Below 1,5V F
(GW)
Water thermo switch
(Radiator) Radiator coolant temperature above 17°C (63°F) Battery voltage
G (YL)
Ignition coil Ignition switch
ON or
engine running Battery voltage
H
(L)
Water thermo switch (Intake manifold) Engine coolant temperature below 72°C (162°F) Below 1,5V H
(L)
Water thermo switch (Intake manifold) Engine coolant temperature above 72°C (162°F) Battery voltage
I
— — —

J
(BW)
Ignition switch Ignition switch
ON
Battery voltage
K
— —

L
— — —

M
— — —

N
— —
4A-90