1989 MAZDA 323 service

B2 DISASSEMBLY
CYLINDER BLOCK (EXTERNAL PARTS)
1. Disassemble in the order shown in the figure, referring to Disassembly Note.
I
@ma @a% GASST, REPLACE
GASKET,
REPLACE
/
d I @REPLACE
23UOB2-0
1. Water pump
Service ..,....,..,......,.,.,,.....,,.,.......... Section E
2. Timing belt pulley and lock bolt
Disassembly Note . . . . . ..,.,........,. page 82-49
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 82-65
3. Clutch cover, clutch disc (MTX)
Service . . . , , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section H
4. Flywheel (MTX)
Disassembly Note ,.. . . . . . . . . . . . . . . . . . page 82-49
Inspect for wear or damage
5. Backing plate, drive plate, and adapter (ATX)
Disassembly Note . . . . ,., ,..... . . . . . . . page B2-49
6. End plate 7. Oil pan and gasket
Disassembly Note .,.................. page 82-49
Inspect for damage
8. Oil strainer
9. Main bearing support plate (MBSP)
Disassembly Note . . . ., . . . . . ..,.... . . . page B2-50
Inspect for damage
10. Oil pump
Service . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section D
11. Front oil seal
Disassembly Note .,.................. page 82-50
12. Rear cover
13. Rear oil seal
Disassembly Note . . . . . . . . . . . . . . . . . . . . page B2-50
B2--48

INDEX D
/I? HYDRAULIC LASH ADJUSTER (HLA)
SERVICE, SECTION Bl
TION B‘
ENGINE &L SPECIFICATION
API SERVICE SG ECII ONLY
TOTAL CAPACITY
4.0 liters (4.2 US qt, 3.5 Imp qt)
I 23UODX-003
1. Oil pressure 4. Oil pan and main bearing support plate
Inspection.. ................................. page D- 6 (MBSP)
2. Engine oil Removal / Installation .................. page D- 9
Inspection page D- 7 5. Oil
................................... pump
Replacement .............................. page D- 7 Disassembly I Assembly.. ........... page D-l 3
LA-”
3. Oil filter Inspection.. ................................. page D-l 4
Replacement .............................. page D- 8
D-3

D INDEX
BP DOHC
HYDRAULIC LASH ADJUSTER (HLA)
SERVICE, SECTION B2
/
ICE,
ENGlNi OIL SPECIFICATION
API SERVICE SG EClI ONLY
TOTAL CAPACITY
4.0 liters (4.2 US qt, 3.5 Imp qt)
1. Oil pressure
Inspection ,,...,..,..,...........,.,,.,.,.,.. page D- 6
2. Engine oil
Inspection page D- 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement ,.,... . . . . . . . . . ,.,....,..... . . page D-
7
3. Oil filter
Replacement . . . . . . . . . . . . . . . . .,.. , . . . . . . . . , page
D- 8 4. Oil pan and main bearing support plate
(MBSP)
Removal I inspection /
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page D- 9
5. Oil pump
Disassembly / Assembly... .I ,....... page D-l 3
Inspection ,.,,,.,....,..,,..,..,.,,.,..,..,., page D-l 4
6. Oil cooler
Removal I Installation . . . . . . . . . . . . . . . . . . page
D- 8
D-4

OUTLINE, TROUBLESHOOTING GUIDE D
OUTLINE
SPECIFICATIONS
Engine
Item
--
Lubrication system
Type
011 pump
Relief pressure kPa (kg/cm2, psi)
_~__
Type Oil filter
Relief pressure differential kPa (kg/cm2, psi)
Oil pressure switch activation pressure
kPa (kg/cm’, psi)
Total (dry engine)
liters (US qt, Imp qt)
Oil capacity Oil pan liters (US qt, Imp qt)
Oil filter liter (US qt, Imp qt)
Engine oil
Above -25OC (-13’F)
Viscosity number
Below 0% (32OF) BP SOHC BP DOHC
B6 SOHC
Force-fed type
Trochoid gear
343-441 (3.5-4.5, 50-64) m I, Full-flow, paper element
78-l 18 (0.8-l .2, 1 l-i 7)
25 (0.25, 3.6)
3.4 (3.6, 3.0) 4.0 (4.2, 3.5)
3.0 (3.2, 2.6) 3.6 (3.8, 3.2)
0.17 (0.18, 0.15)
API service SG Energy ConservingII (ECII) Only
SAE low-30
SAE 5W-30
23UODX-005
TROUBLESHOOTING GUIDE
Problem
Engine hard starting
Excessive oil
consumption
Oil pressure drop
Warming lamp
illuminates while
engine is running Possible Cause
Improper engine oil
Insufficient engine oil
Oil working up or down
011 leakage
Insufficient oil
Oil leakage
Worn and/or damaged oil pump gear
Worn plunger (inside oil pump) or weak spring
Clogged oil strainer
Excessive main bearing or connecting rod bearing
clearance
Oil pressure drop
Malfunction of oil pressure switch
Malfunction of electrical system Remedy
Replace
Add oil
Refer to Section B
Repair
Add oil
Repair
Replace
Replace
Clean
Refer to Section B
As described above
Refer to Section T
Refer to Section T Page
D- 7
D- 7
-
D- 7
-
D-13, 14
D-13, 14
-
-
23UODX-015
D-5

WATER PUMP WATER PUMP
E
REMOVAL / INSTALLATION
Caution
l Do not disassemble the water pump. If a problem is found, replace the pump as a Unit.
1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Remove in the order shown in the figure, referring to
Removal Note.
4. Install in the reverse order of removal.
B6 SOHC AND BP SOHC
83, t B6, BP SOHC
I
I
L-----------------_-- ------- -1
/ \/
19-26 (1.9-2.6, 14-19) LVVVLI. YY,
1. Timing belt 4. Water pump assembly
Service ., . . .., ,, ., . . . . . ,. ,.,. ., ,., . . ,,.... . . . . , Section Bl Inspect for cracks, damaged mounting
2. Water inlet pipe
and gasket surface, bearing condition, and leakage
3. Water bypass pipe and O-ring 5. Water pump gasket
E-l 1

BP DOHC
L 7.8-11 N-m (60-110 cm-kg, 69-95 in-lb)
E WATER PUMP
157-167
I
(W-17, 116-123) I
I
/
I
I
I
---N-w------
---------------
----_---_
-I
N.m (m-kg, ft-lb) 1
^^, *--., ^^^
1. Timing belt
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 5. Water pump assembly
B2
2. Water inlet pipe and gasket Inspect for cracks, damaged mounting
3. Water bypass pipe and O-ring surface, bearing condition, and leakage
4. Oil dip stick pipe bracket 6. Water pump gasket
Steps After Installation
1. Fill the radiator with the specified amount and type of engine coolant. (Refer to page E-6.)
2. Connect the negative battery cable,
3. Start the engine and check for leaks.
03UOEX-018
E-12

F INDEX
DlSTRhUTOR
SERVICE, SECTION G INHIBITOR SWITCH (ATX)
SERVICE, SECTION K
F-2

F OUTLINE
COMPONENT DESCRIPTIONS
Component
Air cleaner
Airflow meter
Mr valve
Atmospheric pressure
Sensor
Catalytic converter Function Remark
Filters air entering throttle body
Detects amount of intake air; sends signal to intake air thermosensor and fuel pump
ECU switch included
Supplies bypass air into dynamic chamber
l Engine speed increased to shorten
when engine is cold warm-up period
l Thermowax type l Installed in dynamic chamber
Detects atmospheric pressure; sends signal Built in ECU
to ECU
Reduces HC, CO, and NOx by chemical Monolith type
reaction Charcoal canister
Stores fuel tank fumes while engine stopped Check valve
Controls pressure in fuel tank Two-way type Circuit opening relay
Voltage for fuel pump while engine running Clutch switch (MTX)
Detects clutch condition; sends signal to Switch OFF when clutch pedal released
ECU Diagnosis connector
Concentrated service connector 25pin (located near left suspension mount-
Concentrated terminals: ing block)
1. EGI self-diagnostic terminal
2. EC-AT self-diagnostic terminal
3. Test terminal
4. Fuel pump check terminal
5. Cooling fan check terminal
6. Engine rpm output terminal Dynamic chamber
Interconnects all cylinders Engine control unit (ECU) Detects the following:
1. A/C operation 1. A/C switch
2. Air/fuel ratio (Oxygen concentration) 2. Oxygen sensor
3. ATF thermosensor
4. Atmospheric pressure 4. Atmospheric pressure sensor
5. Braking signal 5. Stoplight switch (MTX)
6. Cranking signal 6. Ignition switch (START Position)
7. DRL (Daytime Running Light) operation 7. DRL relay (Canada)
8. E/L operation 8. Blower motor switch, cooling fan relay,
headlight switch, and rear window
defroster switch
9. Engine coolant temperature 9. Water thermosensor
10. Engine speed 10. Distributor (Ne-signal)
11. Ignition ON signal 11. Ignition switch
12. In-gear condition 12. Neutral and clutch switches (MTX)
13. Inhibitor switch (ATX) 13. N range, D range, S range, L range
switch
14. Intake air amount 14. Airflow meter
15. Intake air temperature 15. Intake air thermosensor
(In airflow meter)
16. No.1 piston TDC of compression
17. P/S operation
18. Shift solenoid (ATX)
19. Test signal (Ignition timing, idle speed,
Malfunction code No.)
20. Throttle valve fully closed/fully open
condition 16. Distributor (G-signal) DOHC)
17. P/S pressure switch
18. 1-2, 2-3, 3-4, Lockup solenoid
19. Diagnosis connector
(TEN terminal)
20. Throttle sensor (MTX)
21. Throttle valve opening angle
22. Turbine sensor 21. Throttle sensor (ATX) .__r
F-10