torque MAZDA 626 1987 Workshop Manual

OIL JET 2B
OIL JET
REMOVAL
Remove each part in the following order.
1. Remove the oil pan. (Refer to page 2B—9).
2. Remove the oil jet valve.
3. Remove the oil jet.
76G02B-034
INSPECTION
1. Make sure that the oil passage is not clogged.
2. Check that the oil jet valve is not stuck or damaged.
INSTALLATION
Install in the reverse order of removal.
Tightening torque: 12—18 N-m
(1.2—1.8 m-kg, 104—156 in-lb)
76G02B-035
2B—15

3A WATER PUMP
INSPECTION
Check the following. Replace the pump if necessary.
1. Cracks or damage
2. Abnormal noise, bearing sticking or loose.
86U03X-014
INSTALLATION
Install in the reverse order of removal referring to the
installation note.
Installation Note
Rubber seal
Install the rubber seals on the water pump.
76G03A-017
86U03X-016
Water pump
1. Remove any gasket fragments, dirt, or oil from the
contact surfaces.
2. Install a new O-ring on the water pump.
3. Install the water pump.
Tightening torque:
19—25 Nm (1.9—2.6 m-kg, 14—19 ft-lb)
Note
To prevent dropping the O-ring when install-
ing, put silicon sealant in the O-ring groove
(shaded areas) as shown. Do not apply it to
the contact surfaces.
3A—10

THERMOSTAT 3A
69G03B-010
76G03A-008
76G03A-009
THERMOSTAT
REMOVAL
1. Drain the engine coolant.
2. Remove the thermostat cover.
3. Remove the thermostat.
INSPECTION
Check the thermostat. Replace if necessary.
1. Visually check that the valve is airtight.
2. Place the thermostat and a thermometer in water.
3. Gradually heat the water and check the following:
\ Model
Item
FEDOHC
FE 8-valve F8,F6...except
Middle
East General FE 12-valve
FE 8-valve, F8,F6...only Middle East General

Initial opening
tem-
perature

Sub
valve 83.5—86.5°C (182—188°F) Main valve 86.5—89.5°C (188—193°F)
86.5—89.5°C
(188—193°F)
80.5—83.5°C (177—182°F)
Full-open
temperature 100°C (212°F) 95°C (203°F)
Full-open
lift

Sub
valve
1.5
mm
(0.06 in) min.
Main valve
8.0
mm
(0.31 in) min.
8.5
mm
(0.33
in)min.

INSTALLATION
1. Install the thermostat into the cylinder head with
jiggle pin at the top.
2. Install a new gasket with the seal print side facing
the cylinder head.
3. Install the thermostat cover.
Tightening torque:
19—30
N
m (1.9—3.1 m-kg, 14—22 ft-lb)
4. Replenish the coolant.
5. Start the engine and check for leaks.
86U03X-018
3 A-11

3B WATER PUMP
INSPECTION
Check the following. Replace the pump if necessary.
1. Cracks or damage
2. Abnormal noise, bearing sticking or loose
86U03X-014
INSTALLATION
Install in the reverse order of removal referring to the
installation note.
Installation Note
Water pump
1. Remove any gasket fragments, dirt or oil from the
contact surfaces.
2. Install the water pump and new gasket so that the
printed side of the gasket faces the water pump.
Tightening torque:
Bolt A: 31—46 N-m
(3.2—4.7 m-kg, 23—34 ft-lb)
Bolt B: 8—11 N-m
(80—110 cm-kg, 69—95 in-lb)
Water pipe
1. Apply a coat of vegetable oil to the O-ring.
2. Install the water pipe.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
3. Connect the water hose.
76G03B-008
Alternator
1. Install the alternator.
Tightening torque:
Bolt A: 19—26
N
m
(1.9—2.6 m-kg, 14—19 ft-lb)
Bolt B: 37—52 N-m
(3.8—5.3 m-kg, 27—38 ft-lb)
2. Install the alternator drive belt and Comprex su-
percharger drive belt, and adjust the belt deflec-
tion. (Refer to page 1C—7)
76G03B-009
3B—8

THERMOSTAT 3B
THERMOSTAT
REMOVAL
1. Drain the engine coolant.
2. Disconnect the upper radiator hose, and water
thermo switch connector.
3. Remove the thermostat cover.
4. Remove the thermostat.
76G03B-010
76G03B-011
Sub valve Main valve
I
INSPECTION
Check the thermostat. Replace if necessary.
1. Visually check that the valve is airtight.
2. Place the thermostat and a thermometer in water.
3. Gradually heat the water and check the following:
Valve opening temperature
Sub valve : 78.5—81.5°C (173—179°F)
Main valve : 86.5—89.5°C (188—193°F)
Full open lift
Sub valve : 1.5 mm (0.06 in) min. at
100°C (212°F)
Main valve : 8 mm (0.31 in) min. at
100°C (212°F)
Valve closing temperature
Sub valve : 75°C (167°F)
Main valve : 83°C
(181
°F)
69G03B-012
76G03B-012
INSTALLATION
1. Install the thermostat into the thermostat case with
jiggle pin at the top.
2. Install a new gasket with the seal print side facing
the thermostat case.
3. Install the thermostat cover.
Tightening torque:
7—10 N-m (70—100 cm-kg, 61—87 in-lb)
4. Install the upper radiator hose and water thermo
switch connector.
5. Replenish the coolant.
6. Start the engine and check for leaks.
3B-9

3B COOLING FAN
WATER THERMO SWITCH
1. Remove the cooling fan water thermo switch.
Note
Make sure that the ignition switch is OFF. If
not, the fan will operate when the connector
is removed.
76G03B-017
76G03B-018
2. Place the water thermo switch in water.
3. Heat the water gradually, and check for continui-
ty of the switch with an ohmmeter. Replace if
necessary.
Temperature Continuity
Above
91
°C (208°F) No
Below 84°C (183°F) Yes
4. Install the water thermo switch and a new O-ring.
Tightening torque:
6—9 N-m (60—90 cm-kg, 52—78 in-lb)
Caution
Do not use sealing tape.
3B-12

4A FUEL SYSTEM
FUEL TANK
Removal
1. Remove the rear seat cushion.
2. Remove the cover and disconnect the fuel tank
gauge unit connector.
3. Disconnect the fuel main and return hoses.
4. Raise the vehicle and support it with safety stands.
5. Remove the fuel level gauge unit assembly.
Warning
a) When repairing the fuel tank, clean it
thoroughly with steam to remove all explo-
sive gasoline and fumes.
b) Use of fire is strictly prohibited while work-
ing on the fuel tank.
6. Drain the fuel.
7. Disconnect the remaining hoses.
8. Remove the fuel tank.
Inspection
1. Check the fuel tank for cracks and corrosion.
2. If any defect is found, repair or replace the tank.
3. Check for leaks.
Torque Specifications
76G04A-054
4A—36
ft
—^tjf 5
/vfC(l

I
\ 1c
r 1 / |J
tl/y#
t

^ fcfVii
76G04A-052
76G04A-053
Installation
Install in the reverse order of removal.

4A EXHAUST SYSTEM
EXHAUST SYSTEM
EXCEPT FE 8VALVE—UNLEADED FUEL
Removal and Installation
1. Remove in the sequence shown in the figure.
2. Install in the reverse order of removal.
Torque specifications
1. Center silencer and main silencer
2. Brackets
76G04A-187
3. Front silencers
4. Exhaust manifolds
Inspection
Visually check the exhaust system for cracks or
damage.
4A—96

EXHAUST SYSTEM 4A
FE 8 VALVE-UNLEADED FUEL
Removal and Inspection
1. Remove in the sequence shown in the figure
2. Install in the reverse order of removal.
Torque Specifications

L

22—28 N-m (2.2—2.9 m-kg, 16—21 ft-lb)
34—49 N-m (3.5—5.0 m-kg, 26—36 ft-lb)
55—60 N-m (5.6—8.2 m-kg, 40—59 ft-lb)
.8—11 Nm .8—1.1 m-kg, 69—95 in-lb)
N-m 3 m-kg, 25—38 ft-lb)
76G04A-189
1. Main silencer
2. Middle pipe
3. Pre-silencer
4. Catalytic converter
5. Bracket
6. Front pipe
Inspection
1. Check the catalytic converter and exhaust pipe for
deterioration or restriction.
2. Check the insulation covers welded onto the cata-
lytic converter for damage.
Note
If the insulation cover is touching the catalytic
converter housing, excessive heat at the floor
will occur.
76G04A-190
4A-97

4B INTAKE AIR SYSTEM
INSTALLATION
install in the reverse order of removal.
Torque Specification
8—11 N-m (0.8—1.1 m-kg, 5.8—8.0 ft-lb)
19—25 N m (1.9—2.6 m-kg, 14—19 ft-lb)
19—25 N m (1.9—2.6 m-kg, 14—19 ft-lb)
8—11 Nm (0.8—1.1 m-kg, 5.8—8.0 ft-lb)
8—11 N-m (0.8—1.1 m-kg, 5.8—8.0 tt-lb)
a® ^£-5—7 N-m ;'(0.5—0.7 m-kg, 13.6—5.1 ft-lb)
8—11 Nm (0.8—1.1 m-kg 5.6—8.0 ft-lb)
19—25 N-m '41.9—2.6 m-kg, tf>14—19 ft-lb)
8—11 N-m (0.8—1.1 m-kg, 5.8—8.0 ft-lb)
8—11 N-m (0.8—1.1 m-kg 5.8—8.0 ft-lb)
4B—34
76G04B-125