1987 MAZDA 626 belt

INSPECTION 2B
A
76G02B-006
INSPECTION
ENGINE OIL
1. Be sure the vehicle is on level ground.
2. Warm up the engine to normal operating temper-
ature and stop it.
3. Wait for five minutes.
4. Remove the oil level gauge and check the oil lev-
el and condition.
5. Add or replace oil if necessary.
Note
The distance between the L and F marks on
the level gauge represents 1.2 liters (1.26 US
qt, 1.05 Imp qt).
OIL PRESSURE
1. Disconnect the oil hose (vacuum pump—cylinder
block).
76G02B-007
2. Set the SST as shown.
3. Remove the vacuum pump drive belt to prevent
heat damage to bearing.
4. Warm up the engine to normal operating tem-
perature.
76G02B-008
5. Run the engine first at 1,000 rpm, then at 3,000
rpm and note the gauge reading.
Standard oil pressure kPa (kg/cm2, psi)

1,000 rpm 147-245 (1.5-2.5, 21-36)
3,000
rpm
343—441 (3.5-4.5, 50—64)

6. If the pressure is not as specified, check for the
cause, and repair if necessary.
(Refer to Troubleshooting Guide.)
76G02B-009
2B—5

2B
OIL
COOLER AND
OIL
FILTER BODY
76G02B-015
76G02B-016
INSTALLATION
1. Apply a coat of engine oil to the valve holes.
2. Install the relief valve spring and pressure spring.
Tightening torque:
20—29 Nm (2.0—3.0 m-kg, 14—22 ft-lb)
3. Clean the contact surfaces of the cylinder block
and oil filter body.
4. Install new O-rings and apply a coat of engine oil.
5. Install the oil filter body.
Tightening torque:
Bolt A: 8—11 N-m
(80—110 cm-kg, 69—95 in-lb)
Bolt B: 37—52 N-m
(3.8—5.3 m-kg, 27—38 ft-lb)
76G02B-017
6. Apply a coat of engine oil to the O-rings.
7. Install the oil cooler with new O-ring on the con-
nector bolt.
Tightening torque:
25—34 N-m (2.5—3.5 m-kg, 18—25 ft-lb)
8. Connect the water hoses.
9. Install the oil filter cover.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
10. Install the oil filter. (Refer to page 2B—6)
11. Install the idler pulley.
Tightening torque:
19—26 N-m (1.9—2.6 m-kg, 14—19 ft-lb)
12. Install the Comprex supercharger drive belt and
adjust the belt deflection. (Refer to page 1C—7)
13. Add specified amount of coolant and engine oil.
14. Check for leaks.
76G02B-018
2B—8

2B OIL PUMP
OIL PUMP
REMOVAL
1. Disconnect the negative battery cable.
2. Drain the engine oil and coolant.
3. Remove in the sequence shown in the figure referring to the removal note for specially marked parts.
76G02B-026
6. Oil pan (Refer to page 2B—9)
7. Stiffener (RF-CX)
8. Oil strainer
9. Oil pump
Removal Note
Timing belt pulley lock bolt
Hold the timing belt pulley with the SST and remove
the lock bolt.
1. Timing belt (Refer to page 1C—11)
2. Camshaft pulley (Refer to page 1C—36)
3. Injection pump pulley (Refer to page
1C—36)
4. Seal plate
5. Timing belt pulley
2B-12

3A TROUBLESHOOTING GUIDE i
SPECIFICATIONS
^Engine model
Item ^__
FE-DOHC
FE 8-valve,
F8, F6...except
Middle East
.General
FE 12-valve
FE 8-valve F8, F6...only Middle East General

Cooling system Water cooled, forced circulation
Coolant capacity liters (US qt, Imp qt)
With heater 7.5 (7.9, 6.6) Coolant capacity liters (US qt, Imp qt) Without heater 7.0 (7.4, 6.2)
Water pump Type Centrifugal, timing belt driven Water pump
Water seal Unified seal
Thermostat
Type Wax, 2-stage Wax
Thermostat
Opening temperature °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) Thermostat
Full-open temperature °C(°F) 100 (212) 95 (203)
Thermostat
Full-open lift
mm
(in) Sub: 1.5 (0.06) min.
Main: 8.0 (0.31) min. 8.5 (0.33) min.
Radiator
Type Corrugated
Radiator Cap valve opening pressure
kPa (kg/cm2, psi) 74-103 (0.75-1.05, 11-15)
Cooling
fan

Capacity
W

MTX 80
Cooling
fan

Capacity
W
ATX 120
Cooling
fan
Number
of
blade 4 Cooling
fan

Outer diameter
of
blade
mm
(in) MTX 320 (12.6)
Cooling
fan

Outer diameter
of
blade
mm
(in)
ATX 340 (13.4)

76G03A-003
TROUBLESHOOTING GUIDE
Problem Possible Cause Remedy Page
Overheating
Insufficient coolant Add 3A—
5

Coolant leakage Repair
—

Radiator fins clogged Clean 3A—
7

Radiator cap malfunction Replace 3A-
6

Cooling fan malfunction Repair 3A-12 Thermostat malfunction Replace 3 A-11
Water passage clogged Clean 3A—
5

Water
DumD
malfunction ReDair
or
replace 3A-
8
Corrosion
Impurities
in
coolant Replace 3A-
5
76G03A-004
3A—4

3A WATER PUMP
WATER PUMP
REMOVAL
1. Disconnect the negative battery cable.
2. Turn the crankshaft so that the No. 1 cylinder is at TDC of compression.
3. Drain the engine coolant.
4. Remove in the sequence shown in the figure.
1. Timing belt (Refer to Section 1B) 4. Idler pulley
2. Camshaft pulley (Refer to Section 1B) 5. Water pump
3. Seal plate 6. O-ring
3A—8

WATER PUMP 3A
SOHC
19—25 N m (1.9—2.6 m-kg, 14—19 ft-lb)
37—52 N m (3.8—5.3 m-kg, 27—38 ft-lb)
1. Timing belt (Refer to Section 1A)
2. Idler pulley
3. Water pump
4. O-ring
76G03A-007
3A-9

TROUBLESHOOTING GUIDE
3B

SPECIFICATIONS

Cooling system Water-cooled, forced circulation
Coolant capacity liters (US
qt,
Imp
qt)

With heater 9.5 (10.0, 8.4) Coolant capacity liters (US
qt,
Imp
qt)

Without heater 9.0 (9.5, 7.9)
Water pump Type Centrifugal, timing belt driven Water pump
Water seal Unified mechanical seal
Thermostat
Type Wax, two stage
Thermostat
Opening temperature °C(°F) Main Sub
Thermostat
Opening temperature °C(°F)
86.5-89.5 (188-193) 78.5—81.5 (173-179) Thermostat
Full-open temperature °C(°F) 100 (212) 100 (212)
Thermostat
Full-open lift
mm (in)
8.0 (0.31) min. 1.5 (0.06) min.
Radiator
Type Corrugated
fin

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

Type Electric
Cooling
fan

Capacity
W
120
Cooling
fan
Switching temprature orvopi OFF
- ON ^
91 (196) Cooling
fan

Number
of
blade 4
Cooling
fan

Outer diameter
mm
(in) 340 (13.4)

76G03B-003
TROUBLESHOOTING GUIDE
Problem Possible Cause Remedy Page
Overheating
Insufficient coolant Add 3B-
4

Coolant leakage Repair
—

Radiator fins clogged Clean 3B—
6

Radiator cap malfunction Replace 3B—
5

Cooling fan malfunction Repair 3B-11 Thermostat malfunction Replace 3B—
9

Water passage clogged Clean 3B—
4

Water pump malfunction ReDair
or
replace 3B—
7

Corrosion
Impurities
in
coolant Replace 3B-
4

76G03B-004
3B—3

WATER PUMP 3B
WATER PUMP
REMOVAL
1. Disconnect the negative battery cable.
2. Turn the crankshaft so that the No. 1 cylinder is at TDC of compression.
3. Drain the engine coolant.
4. Remove in the sequence shown in the figure. 69G03A-025
31—46 N m (3.2—4.7 m-kg, 23—34 ft-lb)
19—26 N-m (1.9—2.6 m-kg, 14—19 ft-lb)
(?) 8—11 N-m (80—110 cm-kg, 69—95 In-lb)
37—52 N-m (3.8—5.3 m-kg, 27—38 ft
55—65 N-m (5.6—6.6 m-kg, 41-48 ft-lb)
(80—110 cm-kg, 69—95 In-lb)
59—69 N-m (6.0—7.0 m-kg, 43—51 ft-lb)
76G03B-006
1. Timing belt (Refer to page 1C—11)
2. Camshaft pulley (Refer to page 1C—36)
3. Injection pump pulley (Refer to page
1C—36)
4. Seal plate
Note
Do not disassemble the water pump body, if a problem is found replace it as a unit.
5. Alternator
6. Water pipe
7. Water hose
8. Water pump body
9. Water pump inlet
3B-7