engine MAZDA PROTEGE 1992 Workshop Manual

ENGINE OIL, OIL FILTER D
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03UODX-00
ONODX-01
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03UODX-011
ENGINE OIL
INSPECTION
1. Be sure the vehicle is on level ground.
2. Warm up the engine to normal operating temperature and
stop it.
3. Wait for five minutes.
4. Remove the oil level gauge and check the oil level and con-
dition.
5. Add or replace oil as necessary.
Note
l The distance between the L and F marks on the level
gauge represents 0.8 liter (0.85 US qt, 0.70 Imp qt).
REPLACEMENT
Warning
l Be careful when draining; the oil is hot.
1. Warm up the engine to normal operating temperature and
stop it.
2. Remove the oil filler cap and the oil pan drain plug.
3. Drain the oil into a suitable container.
4. Install a new gasket and the drain plug.
Tightening torque:
29-41 N,m (3.0-4.2 m-kg, 22-30 ft-lb)
5. Refill the engine with the specified type and amount of en-
gine oil.
6. Refit the oil filler cap.
7. Run the engine and check for leaks.
8. Check the oil level and add oil if necessary.
Oil pan capacity
B6 SOHC
BP SOHC and DOHC
liters (US qt, Imp qt)
3.0 (3.2, 2.6)
3.6G.843.2)
w
03UODX-011
D-7

D OIL FILTER, OIL COOLER
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OSUODX-0
‘I . 03UODX-01
OIL FILTER
REPLACEMENT
1. Remove the oil filter with a suitable wrench.
2. Use a clean rag to wipe off the mounting surface on the
engine.
3. Apply a small amount of clean engine oil to the rubber seal
of the new filter.
4. Install the oil filter and tighten it by hand until the rubber
seal contacts the base.
5. Tighten the filter 1 and 116 turns with a filter wrench.
6. Start the engine and check for leaks.
7. Check the oil level and add oil if necessary.
Oil filter capacity: 0.17 liter (0.18 US qt, 0.15 Imp qt)
OIL COOLER (BP DOHC)
REMOVAL
1. Drain the engine oil.
2. Remove the oil filter with an oil filter wrench.
3. Disconnect the water hoses.
4. Remove the oil cooler.
INSTALLATION
1. Install the oil cooler.
Tightening torque:
29-39 Nnrn (3.0-4.0 m-kg, 22-29 ft-lb)
2. Install the oil filter. (Refer to page D-8.)
3. Add engine oil to the correct level.
4. After installing the filter, check that there is no oil leakage
while the engine is running.
5. Recheck the oil level using the dipstick.
(Refer to page D-7.)

OIL PAN
OIL PAN
REMOVAL / INSTALLATION
1. Disconnect the negative battery cable.
2. Drain the engine oil.
3. Remove the under cover and side cover.
4. Remove in the order shown in the figure, referring to
Removal Note.
5. Install in the reverse order of removal, referring to Installation Note.
B6 SOHC
37-52 (3.8-5.3, 27-38)
I
GASKET,
REPLACE
9-94 (7.0-9.6, 51-69)
-52 ,a m-c .a .Y’)-*II
29-41 (3.0--/.2, 22-30)
_- ,r.rr--r-u, -.--““I ‘.8 11 Nm 4,
#O-r 10 cm-k% 69-96 in-lb) ,a&
7.8-l 1 N.m (SO-1 10 cm-kg, 69-96 in-lb)
1. Front exhaust pipe and bracket
2. Integrated stiffener
3. Oil pan
Removal Note ,...*..,,..*..,..*.......... page D-10
Inspect for cracks, deformation or damage
installation Note .,,.,..,,,.,.,......,.... Page D-l 1 4. Oil strainer
5. Main bearing support plate (MBSP)
Removal Note ,..,..I.,.......,........... page D-l 1
Installation Note .,..,,.,.....,,.....,..,.. page D-l 1
D-9

OIL PAN
I 03UODX.02
05UOBX.20
1
05UODX-021
56 SOHC
03UODX-02
3P s
03UODX-02!
1. Remove all foreign material from the contact surfaces.
2. Apply silicone sealant to the contact surfaces of a new oil
pan gasket, shown in the figure.
3. Install new gaskets onto the oil pump body and the rear
cover with the projections in the notches shown in the figure.
4. Apply a continuous bead of silicone sealant to the oil pan
along the inside of the bolt holes and overlap the ends.
5. Install the oil pan.
B6 SOHC
Tightening torque:
7.6-11 N-m (80-110 cm-kg, 69-95 in-lb)
BP SOHC
Tightening torque
A : 7.8-l 1 N-m (80-l 10 cm-kg, 69-95 in-lb)
8 B : 37-52 N.m (3.8-5.3 m-kg, 27-38 ft-lb)
Steps After Installation
1. Install the under cover and side cover.
2. Fill with the specified amount and type of engine oil.
3. Connect the negative battery cable.
4. Start the engine and check for leaks.
5. Check the oil level and add oil if necessary.
D-12

OIL PUMP
OWODX-032
r----‘---I ----
L-
---- 05UODX-033
r- __I_.__^--
_- .-.. --.-.__-----^---
---7--l
L-.-.LlLd-..- ..-.---A OWODX-034
___ll_--_l___-----------
___I- 1
.i
5
INSPECTION
Pressure Spring
1 Inspect the spring for weakness or breakage.
2. Measure the free length. Replace the spring if necessary.
Free length: 45.5mm (1.791 in) -
Rotor Clearance
1. Measure the following clearances. Replace the rotor if
necessary.
Tooth tip clearance: 0.20mm (0.0079 in) max.
Outer rotor to pump body clearance:
0.22mm (0.0087 in) max.
Side clearance: 0.14mm (0.0055 in) max.
Assembly Note
Oil seal
1, Apply a small amount of clean engine oil to the lip of a new
oil seal.
2. Push the oil seal slightly in by hand,
Caution
l The oil seal must be pressed in until it is flush with
the edge of the oil pump body.
-’
3. Press the oil seal in evenly with a suitable pipe.
Oil seal outer diameter: 44mm (1.73 in)

E
COOLING SYSTEM
INDEX ...................................................... E- 2
OUTLINE .................................................. E- 4
SPECIFICATIONS .................................... E- 4
TROUBLESHOOTING GUIDE ...................... E- 4
ENGINE COOLANT .................................... E- 5
PREPARATION ....................................... E- 5
INSPECTION ..........................................
REPLACEMENT ...................................... :z ;
RADIATOR CAP ........................................
PREPARATION ....................................... ;I ;
INSPECTION .......................................... E- 7
RADIATOR ............................................... E- 8
REMOVAL / INSTALLATION ...................... E- 8
INSPECTION .......................................... E- 9
THERMOSTAT .......................................... E- 9
REMOVAL / INSTALLATION ...................... E- 9
INSPECTION .......................................... E- 9
WATER PUMP .......................................... E-l 1
REMOVAL / INSTALLATION ...................... E-l 1
ELECTRIC COOLING FAN SYSTEM ............ E-13
SYSTEM CIRCUIT .................................... E-l 3
SYSTEM INSPECTION .............................. E-14
FAN MOTOR ............................................. E-14
INSPECTION .......................................... E-l 4
REPLACEMENT ...................................... E-l 5
WATER THERMOSWITCH .......................... E-l 8
REMOVAL / INSTALLATION ...................... E-18
INSPECTION .......................................... E-l 8
RADIATOR THERMOSWITCH ..................... E-l 7
REMOVAL I INSTALLATION ...................... E-17
INSPECTION .......................................... E-l 7
FAN RELAY .............................................. E-l 8
REMOVAL I INSPECTION .......................... E-l 8
INSPECTION .......................................... E-l 8
23UOEX-001

INDEX
B6 SOHC AND BP SOHC
COOLANT RESERVOIR
@ ENGINE COOLANT
TOTAL CAPACITY
MTX: 5.0 liters (5.3 US qt, 4.4 Imp qt)
ATX: 6.0 liters (6.3 US qt, 5.3 Imp qt)
1. Engine coolant 6. Electric cooling fan system
23UOEX-00
inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page E- 5
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page E-
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
page E- 2. Radiator cap
7
3. Radiator
Removal I Installation . . . . . . . ,.......... page E- 8
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page E- 9
4. Thermostat
Removal / Installation . . . . . . . . . . . . . . . . . . page E- 9
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page E- 9
5. Water pump
Removal / Installation ....t___.......... page E-i 1
System
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8. Water thermoswitch
Removal / Installation . . . . . . . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9. Radiator thermoswitch (BP ATX) System
Removal I Installation . . . . . . . . . . . . . . . . . inspection . . . . . . . . . . . . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IO. Fan relay
7. Fan motor
Removal / Inspection . . . . . . . . . . . . . . . . . page E-13
page E-14
page E-14
page E-15
page E-16
page E-16
page E-17
page E-l 7
page E-18 ..--’
E-2

E
BP DOHC
-a TO HEATER
&$ No.1 RELAY
COOLANT ~~ESERVOI~~
@ ENGINE COOLANT
TOTAL CAPACITY
MTX: 5.0
liters (5.3 US qt, 4.4 Imp qt)
ATX: 6.0 liters (6.3 US qt, 5.3 Imp qt)
23UOEX-00
1. Engine coolant
6. Electric cooling fan system
Inspection ...................................
page E- 5 System circuit
.............................
page E-l 3
Replacement ...............................
page E-
6 System inspection
....................... page E-14
2. Radiator cap
7. Fan motor
Inspection ................................... page E- 7
Inspection ...................................
page E-14
3. Radiator
Replacement..
............................. page E-i 5
Removal / Installation..
................
page E-
8 8. Water thermoswitch
Inspection
.................. ................................... page E- 9 Removal / Installation
page E-16
4. Thermostat
Inspection ...................................
page E-l 6
Removal I Installation
.................. page E- 9 9. Radiator thermoswitch (ATX)
Inspection
.................. ...................................
page E- 9 Removal I Installation
page E-l 7
5. Water pump
Inspection
...................................
page E-l 7
Removal / Installation ..................
page E-i 1 10. Fan relay
Inspection ...................................
page E-l 8
E-3

ENGINE COOLANT E
ENGINE COOLANT
PREPARATION
SST
49 9200 145
For 49 9200 146
For
inspection of inspection of
cooling system Adapter A cooling system
pressure (Part of pressure
49 9200 145)
05UOEX-00
INSPECTION
Warning
l Never remove the radiator cap while the engine is
hot.
l Wrap a thick cloth around the cap when removing it.
l When removing the radiator cap, loosen it slowly
to the first stop until the pressure in the radiator is
released, and then remove it.
03UOEX~006
Coolant Level (Engine cold)
1. Verify that the coolant level is near the radiator filler neck.
2. Remove the coolant level gauge and check the coolant level.
Coolant Quality
1. Verify that there is no buildup of rust or scale around the
radiator cap or radiator filler neck.
2. Verify that coolant is free of oil. Replace the coolant if
necessary.
Coolant Leakage
1. Connect a radiator tester (commercially available) and the
SST to the radiator filler neck.
2. Apply
103 kPa (1.05 kg/cm2, 15 psi) pressure to the
system.
3. Verify that the pressure is held.
If not, check for coolant leakage.
E-5

E ENGINE COOLANT
SPECIFIC
GRAVITY COOLANT PROTECTION
l.OOd ’ ’ I I I I I
0, I I
-10 0 i 10 20 30 40 50 60
70 60 90
(14) (32) (50) (66) (66)(104)(122)(140)(158~176)(194)
COOLANT TEMPERATURE OC (OF)
Coolant Protection
Caution
l Do not use alcohol- or methanol-based coolant.
l Use only soft (demineralized) water in the coolant
mixture.
1. Measure the coolant temperature and specific gravity with
a thermometer and a hydrometer.
2. Determine the coolant protection by referring to the graph
shown.
If the coolant protection is not proper, add water or coolant.
Antifreeze solution mixture percentage
~1
05UOEX-010
REPLACEMENT
Warning
l Never open the radiator cap while the engine is hot.
l Wrap a thick cloth around the cap when loosening.
. Use caution when draining hot coolant.
Caution ..-
l Do not use alcohol- or methanol-based coolant.
l Use only soft (demineralized) water in the coolant
mixture.
1. Remove the radiator cap and loosen the drain plug.
2. Drain the coolant into a suitable container.
3. Flush the cooling system with water until all traces of color
are gone; then let the system drain completely.
4. Install the drain plug.
5. Fill with the proper amount and mixture of ethylene glycol
based coolant by referring to the table above.
Coolant capacity
MTX: 5.0 liters (5.3 US qt, 4.4 Imp qt)
ATX: 6.0 liters (6.3 US qt, 5.3 Imp qt)
6. Run the engine with the radiator cap removed until the up-
per radiator hose is hot.
7. With the engine idling, add coolant to the radiator until it
reaches the bottom of the filler neck.
8. Install the radiator cap.
03UOEX-010 -
E-6