oil temperature MAZDA PROTEGE 1992 User Guide

D OIL PRESSURE
OIL PRESSURE
PREPARATION
SST
49 C 187 280
Gauge,
oil pressure
03UODX-03
2
03UODX-007
INSPECTION
1, Remove the intake manifold bracket.
2. Remove the oil pressure switch.
3. Screw the SST into the oil pressure switch installation hole.
4. Warm up the engine to normal operating temperature.
5. Run the engine at 1,000 rpm and 3,000 rpm, and note the
gauge reading.
Oil pressure:
196-294 kPa (2.0-3.0 kg/cm2, 28-43 psi)-1,000 rpm
294-392 kPa (3.0-4.0 kg/cm2, 43-57 psi)-3,000 rpm
6. If the pressure is not as specified, check for the cause and
repair. (Refer to Troubleshooting Guide.)
7. Remove the SST and install the oil pressure switch.
Tightening torque:
12-18 N-m (1.2-l .8 m-kg, 104-156 in-lb)
8. Install the intake manifold bracket.
Tightening torque
@: 37-52 N*m (3.8-5.3 m-kg, 27-38 ft-lb)
0: 19-25 N,m (1.9-2.6 m-kg, 14-19 ft-lb)

ENGINE OIL, OIL FILTER D
b
I
03UODX-00
ONODX-01
r
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

E OUTLINE, TROUBLESHOOTING GUIDE
OUTLINE
SPECIFICATIONS
B6 SOHC
BP SOHC BP DOHC
MTX
1 ATX 1 MTX ATX 1 MTX
ATX
Cooling system
Water-cooled, forced circulation
Coolant capacity liters (US qt, Imp qt) 5.0 6.0
5.0
(5.3, 4.4) (6.3, 5.3)
(5.35.04.4) (6.zi.3) (5.3, 4.4) (6.::.3)
Water
pump
Thermostat
Radiator
Cooling fan
L Type
Water seal Centrifugal
Unified mechanical seal
Type Opening temperature
‘C (OF’) Wax, two-stage
Main: 86.5-89.5 (188-193)
Sub : 83.5-86.5 (182-188)
Full-open temperature
OC (OF)
Full-open lift mm (in)
Type
Cap valve opening
pressure 100 (212)
Main: 8.0 (0.31) min.
Sub : 1.5 (0.06) min.
Corrugated fin
74-103 (0.75-1.05, 11-15)
kPa (kg/cm2, psi)
Width
Core size Height
mm (in)
Depth
Fin pitch
mm (in) 647 (25.47)
390 (15.35)
16 (0.63) 1 25 (0.98) 1 16 (0.63) 1 25 (0.98) 1 16 (0.63) 1 25 (0.98)
1.3 (0.051)
Heat dissipation capacity
kcallh 1 38,800 [ 43,800 ( 38,800 1 43,800 1 38,800 1 43,800 1
Type
Transaxle Heat
oil cooler dissipation
capacity
kcallh
Tvoe
- Laminated - Laminated -
Laminated
1,700
I .I -?nn
- -
I,,“”
I
I - I 4 Ye,-. I,IVV 1
, a-
- Electric
Number of blades 4
Outer diameter mm (in)
320 (12.6)
Capacity w-v 80-12 1 160-12 ) 80-12 ) 160-12 1 80-12 1 160-12
1 Hi: 13.3+ 1 1 Hi: 13.3+ 1 1 Hi: 13.3+
Current
TROUBLESHOOTING GUIDE I I I I
Problem Possible Cause
Overheating
Coolant level insufficient
Coolant leakage
Radiator fins clogged
Radiator cap malfunction
Cooling fan malfunction
Thermostat malfunction
Water passage clogged
Water puma malfunction .- Remedy Page
Add
Repair
Clean
Replace
Replace
Replace
Clean
Reolace E- 6
E-9
E- 7
E-13
E- 9
E- 6
E-11
I Corrosion
1 Impurities in coolant 1 Replace
I E-6 I
03UOEX-005

RADIATOR THERMOSWITCH E
RADIATOR THERMOSWITCH
REMOVAL / INSTALLATION
1. Disconnect the negative battery cable.
2. Remove in the order shown in the figure.
3. Install in the reverse order of removal. referrina to
Installation Note.
(80-110 cm-kg,
69-95 in-lb)
GAdKET,
REPLACE (60-120 cm-kg, 52-104 In-lb)
1. Resonance chamber
2. Radiator cowling installation bolts
3. Radiator thermoswitch connector 4. Radiator thermoswitch
Inspection . . . . . . . . . . . . . . . ..*...,..,..................* below
Installation Note ..,.,........,.......,........,... below
1. Place the switch and a thermometer in engine oil.
03UOEX-02
INSPECTION
Warning
l Do not heat the engine oil above 120°C (248OF)
2. Heat the engine oil gradually and check continuity of the
switch with an ohmmeter.
Engine oil temperature OC (OF) Continuity
More than 105 (221)
Yes
Less than 96 (205) No
3. If not as specified, replace the radiator thermoswitch.
lnstallatlon Note
Radiator thermoswitch
Caution
l Do not use an impact wrench for installation.
1. Install the radiator thermoswitch along with a new gasket.
Tightening torque:
5.9-12 N#m (60-l 20 cm-kg, 52-104 in-lb)
13UOEX-005
E-17

OUTLINE
Component Function Remark
Engine control unit (ECU) Controls operation of the following:
(Cont’d)
1. A/C (Cut-off) 1. A/C relay
2. Fail-safe function 2. Self-Diagnosis Checker and MIL
3. Fuel injection system 3. Injector
4. idle speed control 4. Idle speed control (ISC) valve
5. Ignition timing control system 5. Igniter
6. Monitor function 6. Monitor lamp (Self-Diagnosis Checker)
7. Pressure regulator control system 7. Solenoid valve
(Pressure regulator control) (BP)
8. Purge control system 8. Purge control solenoid valve
9. VICS 9. Solenoid valve (WCS) (DOHC) Fuel filter
Filters particles from fuel Fuel pump
Provides fuel to injectors l Operates while engine running l Installed in fuel tank Igniter
Receives spark signal from ECU and gener-
ates high voltage in ignition coil Ignition switch
Engine cranking signal sent to ECU (START position)
Inhibitor switch (ATX)
Detects in-gear condition; sends signal to Switch ON in N or P range
ECU Injector
Intake air thermosensor
Idle speed control (ISC)
valve
Main relay
(FUEL INJ relay)
MIL (Malfunction
indicator lamp)
Neutral switch (MTX)
Oxygen sensor
PCV valve
P/S pressure switch
Pressure regulator
Resonance chamber
Resonance duct
Separator
Stoplight switch
Solenoid valve
(Purge control)
Shutter valve actuator
(DOHC)
Throttle body
Throttle sensor
Injects fuel into intake port l Controlled by signals from ECU
l High-ohmic injector
Detects intake air temperature; sends signal Installed on dynamic chamber
to ECU
Controls bypass air amount Controlled by duty signal from ECU
Supplies electric current to injectors, ECU,
etc.
Lamp flashes to indicate malfunction code
number of input and output devices
Detects in-gear condition; sends signal to
ECU
Detects oxygen concentration; sends signal
to ECU
Controls blowby gas introduced into engine
Detects P/S operation; sends signal to ECU
Adjusts fuel pressure supplied to injectors
Reduces intake air noise
Reduces intake air noise
Prevents fuel from flowing into charcoal
canister
Detects braking operation (deceleration),
sends signal to ECU
Controls evaporative fumes from canister to
intake manifold
Closes/opens shutter valve to improve
torque characteristics
Controls intake air quantity
l Detects throttle valve fully closed/fully
opened condition (MTX) TEN terminal grounded
Switch ON in neutral
Zirconia ceramic and platinum coating
P/S: ON when steering wheel turned right or
left
Controlled by duty signal from ECU
For Variable inertia charging system (VICS*)
Integrated throttle sensor, dashpot, and ISC
valve
l Detects throttle valve opening angle
(A-W
l Sends signals to ECU
F-l 7

ENGINE TUNE-UP F
03UOFX.051
03UOFX-051
- w4TEN I
Air Cleaner Element
Inspection
1. Check the air cleaner element for excessive dirt, damage,
or oil.
Caution
l Do not use compression air to clean the element.
2. Replace the element if necessary.
ADJUSTMENT
Preparation
1. Warm up the engine to normal operating temperature.
2. Turn all electric loads OFF.
3. Connect the
SST to the diagnosis connector.
4. Connect a timing light.
5. Connect a tachometer to the diagnosis connector
IG- ter-
minal as shown.
6. Set switch @to position 1.
7. Set TEST SW to SELF-TEST.
Note
l If the SST is not used, jump across the TEN termi-
nal and the GND terminal of the diagnosis con-
nector.
Ignition Timing
1. Perform “Preparation”. (Refer to above.)
2. Check if the timing mark (yellow) on the crankshaft pulley
and the mark on the timing belt cover are aligned.
Specification:
Engine
Ignition Timing BTDC B6 BP SOHC BP DOHC
6O-8* 4O--6O go-110
SOHC DOHC
I 03UOFX-054
3. If the marks are not aligned, loosen the distributor lock bolts,
and turn the distributor to make the adjustment.
4. Tighten the distributor lock bolts to the specified torque.
Tightening torque:
19-25 N#m (1.9-2.6 m-kg, 14-19 ft-lb)
5. Disconnect the SST.
F-79

N ENGINE SPEED SENSING POWER STEERING
03UONXGI
23UONX-03
23UONX-OZ
THERMOMETER
-Y
23UONX-03
Inspection of fluid pressure
1. Assemble the SST as shown in the figure.
Tightening torque:
39-49 Nern (4.0-5.0 m-kg, 29-36 ft-lb)
2. Disconnect the pressure hose on the oil pump side, and
attach the SST.
Note
l Before disconnecting the hose, make marks at the
connections for proper reinstallation.
3. Bleed the air from the system. (Refer to page N-26.)
4. Open the gauge valve fully. Start the engine and turn the
steering wheel fully left and right to raise the fluid tempera-
ture to 50-60°C (122-14OOP).
5. Close the gauge valve completely. Increase the engine
speed to 1,000-l ,500 rpm and measure the fluid pres-
sure generated by the oil pump. If the pressure is below
specification, replace the oil pump assembly.
Oil pump fluid pressure:
7,356 kPa (75 kg/cm2, 1,067 psi)
Caution
l If the valve Is left closed for more than 15 seconds,
the fluid temperature will increase excessively and
adversely affect the oil pump.
6. Open the gauge valve fully again and increase the engine
speed to l,OOO-1,500 rpm.
7. Turn the steering wheel fully to the left and right and meas-
ure the fluid pressure generated by the gear housing. If the
pressure is below specification, replace the gear housing
assembly.
Gear housing fluid pressure:
7,356 kPa (75 kg/cm2, 1,067 psi)
Caution
l If the steering wheel is kept in the fully turned po-
sition for more than 15 seconds, the fluid tempera-
ture will rise excessively.
N-28

2L BUZZER 2A 28 2C 2D 1A 3K l--r nnmn
I I‘ I
1C 3L 2E 2G IL iG 1F 1D tB
3F 38 3G 1E 3D
l-l rt
II l-l
l-l It II l-l 1J 11 1H
1G IF 1E 1D 1C 1B 1A 2L 2K 2J 21 2H 2G 2F 2E 2D 2C 28 2A
r-l It ,I 3L 3K 3J 31 3H 3G 3F 3E 3D 3C 3B 3A
Ter- I I minal Connected to 1 1A Combination switch
1B Ground
IC Fuel tank unit
1 ID 1 EGI control unit
I
II L 1J 1
L Ter-
minal Connected to
2A Speed sensor output
28 Light switch (high beam)
2C Turn switch (L)
20 Turn switch (R)
2E Ground
2F Ground
2L 1 IGI battery Ter-
minal Connected to
3A
38 Alternator
3c
30 Oil pressure switch
3E
3F Parking brake switch, Brake fluid switch
3G Passive shoulder belt control unit
3H h
I 31
3J
3K
IG2 battery
3L Water temperature gauge unit

TECHNICAL DATA
D. LUBRICATION SYSTEM
Item I I bhricatinn mothnd
Engine
B6 SOHC BP SOHC
Force-fed BP DOHC 1
Requlated pressure kPa (kg/Cm”, p
Inner rotor tooth tip to outer rotor Standard
I-‘---- -.----,
clearance mm (in) Maximum 0.20 (0.0078)
Outer rotor to body clearance mm (in) Standard 0.09-0.18 (0.0035-0.0071)
Maximum 0.22 (0.0087)
Side clearance mm (in) Standard 0.03-0.11 (O.pniq n nnn=’
Maximum n4rl ‘-
“” I r-“.““+..I,
I “. I ‘t (U.0055)
I
1
Oil filter
_ Type
Relief pressure differential
Engine oil
I
Capacity
liters (US qt, Imp qt)
Grade
I Viscosity Full-flow, paper element
kPa (kg/cm’, psi) 1 78-l 18 (0.8-I .2, 1 l-l 7) Tntal /An, nnr*inol 3.4 (3.6, 3.0) 1 4.0 (4.2, 3.5)
3.0 (3.2, 2.6) 1 3.6 (3.8, 3.2)
VII 111Lb1 0.17 (0.18, 0.15)
API Service SG Energy Conserving II (ECQ
1
SA!f InW-Xl 1~ Above -25% (-13OF _ .-.. --
I
I
number
1 Below O’C (32OF) SAE 5W-30
1
E. COOLING SYSTEM
Cooling method EnginelTransaxle
MTX ] ATX 1 MTXl
Water-cooled, forced circulation
J B6 SOHC BP SOHC BP DOHC
, ATX 1 MTX ) ATX
LThermostat
Type Opening temperature
Full-open temperature
Full-open lift
Radiator
_ Type
Cap valve opening pressure
Cooling circuit checking pressure Wax, two-stage
“C (OF) Sub: 83.5-86.5 (182--188), Main: 86.5-89.5 (188-193)
OC (OF) 100 (212)
mm (in) Sub: 1.5 (0.06) min., Main: 8.0 (0.31) min.
Corrugated fin
kPa (kg/cm2, psi) 74-103 (0.75-1.05, 11-15)
kPa (kg/cm’, psi) 103 (1.05, 15)
~..
Cooling fan
Type Electric .-
Number of blades 4
_.---- _I___-
Outer diameter mm (in) 320 (12.6)
--_ ~~-
Capacity w-v 80-12 - 160-12 80-l 2 160-12
6.6 Hi : 13.3
6.6 Hi : 13.3
Current A
Low : 8.8 Low : 8.8
_------ ._____
Water thermoswitch
“c (OF) 1
OFF-ON 97 (207)
I--.
Radiator thermoswitch
__-I____-
OFF+ON “C (OF) 1 1105 (221)( - (105 (221)
TD-8

Reading Wiring Diagrams Z-GI-9
Symbol ‘ Meaning Symbol Meaning
Horn l Generates sound when current flows. Switch (1) l Allows or breaks current flow by
opening and closing circuits.
Speaker
w
Heater l Generates heat when current flows. Normally open (NO)
Switch (2)
Normally closed (NC)
Harness l Unconnected intersecting harness.
Speed sensor l Movement of magnet in speedometer
set turns contact within sensor on and
Off. (Not connected)
l Connected intersecting harness.
Ignition switch @Turning ignition key operates switch
contacts to complete various circuits.
(Connected)
rlormally open (NO)
Relay (1) l Current flowing through coil produces electromagnetic force causing contact to open or close.
____- .~.~~
Open Closed
--.--.-m.---------,
Relay (2) Normally open relay (NO)
- Ri i No flow ’ ni 1 Closed
Normally closed relay (NC) Flow
ormally closed (NC)
Sensor (variable) l Resistor whose resistance changes Diode
l Known as a semiconductor rectifier.
--3p6G- with operation of other components. diode allows current flow in one
direction only
--T- IA
IY Calhode(K)+- Anode(A)
* Flow of electric current
K-1 KD, he>:
-
ensor (thermistor)
l Resistor whose resistance changes Light emitting diode 0 Diode that lights when current flows
with temperature.
(LED)
l Unlike ordinary light bulbs, diode does
not generate heat when lit
Capacitor
l Component that temporarily stores “2, Cathode(K) --&---Anode(A)
I7
Cathode(K)
electrical charge.
c Anode(A)
----il---- .
Flow of electric current
Solenoid
l Current flowing through co11 generates Reference(zener) l Allows current to flow In one dlrectlon
electromagnetic force to operate diode up to a certain voltage. allows current
plungers, etc. cd to flow In other dIrectron once that
J-
voltage IS exceeded.
z-9