Mazda Engine LF, L3. Manual — part 4
GENERAL INFORMATION
00–00–11
00–00
NEW STANDARDS
E5U000000000E05
• Following is a comparison of the previous standard and the new standard.
New Standard
Previous Standard
Remark
Abbrevi-
ation
Name
Abbrevi-
ation
Name
AP
Accelerator Pedal
—
Accelerator Pedal
ACL
Air Cleaner
—
Air Cleaner
A/C
Air Conditioning
—
Air Conditioning
BARO
Barometric Pressure
—
Atmospheric Pressure
B+
Battery Positive Voltage
Vb
Battery Voltage
—
Brake Switch
—
Stoplight Switch
—
Calibration Resistor
—
Corrected Resistance
#6
CMP sensor Camshaft Position Sensor
—
Crank Angle Sensor
CAC
Charge Air Cooler
—
Intercooler
CLS
Closed Loop System
—
Feedback System
CTP
Closed Throttle Position
—
Fully Closed
CPP
Clutch Pedal Position
—
Idle Switch
CIS
Continuous Fuel Injection System
—
Clutch Position
CS sensor
Control Sleeve Sensor
CSP sensor Control Sleeve Position Sensor
#6
CKP sensor Crankshaft Position Sensor
—
Crank Angle Sensor 2
DLC
Data Link Connector
—
Diagnosis Connector
DTM
Diagnostic Test Mode
—
Test Mode
#1
DTC
Diagnostic Trouble Code(s)
—
Service Code(s)
DI
Distributor Ignition
—
Spark Ignition
DLI
Distributorless Ignition
—
Direct Ignition
EI
Electronic Ignition
—
Electronic Spark Ignition
#2
ECT
Engine Coolant Temperature
—
Water Thermo
EM
Engine Modification
—
Engine Modification
—
Engine Speed Input Signal
—
Engine RPM Signal
EVAP
Evaporative Emission
—
Evaporative Emission
EGR
Exhaust Gas Recirculation
—
Exhaust Gas Recirculation
FC
Fan Control
—
Fan Control
FF
Flexible Fuel
—
Flexible Fuel
4GR
Fourth Gear
—
Overdrive
—
Fuel Pump Relay
—
Circuit Opening Relay
#3
FSO
solenoid
Fuel Shut Off Solenoid
FCV
Fuel Cut Valve
#6
GEN
Generator
—
Alternator
GND
Ground
—
Ground/Earth
HO2S
Heated Oxygen Sensor
—
Oxygen Sensor
With heater
IAC
Idle Air control
—
Idle Speed Control
—
IDM Relay
—
Spill Valve Relay
#6
—
Incorrect Gear Ratio
—
—
—
Injection Pump
FIP
Fuel Injection Pump
#6
—
Input/Turbine Speed Sensor
—
Pulse Generator
IAT
Intake Air Temperature
—
Intake Air Thermo
KS
Knock Sensor
—
Knock Sensor
MIL
Malfunction Indicator Lamp
—
Malfunction Indicator Light
MAP
Manifold Absolute Pressure
—
Intake Air Pressure
MAF sensor Mass Air Flow Sensor
—
Airflow Sensor
MFL
Multiport Fuel Injection
—
Multiport Fuel Injection
OBD
On-Board Diagnostic
—
Diagnosis/Self-Diagnosis
OL
Open Loop
—
Open Loop
—
Output Speed Sensor
—
Vehicle Speed Sensor 1
OC
Oxidation Catalytic Converter
—
Catalytic Converter
O2S
Oxygen Sensor
—
Oxygen Sensor
GENERAL INFORMATION
00–00–12
#1 : Diagnostic trouble codes depend on the diagnostic test mode
#2 : Controlled by the PCM
#3 : In some models, there is a fuel pump relay that controls pump speed. That relay is now called the fuel pump
relay (speed).
#4 : Device that controls engine and powertrain
#5 : Directly connected to exhaust manifold
#6 : Part name of diesel engine
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ABBREVIATIONS
E5U000000000E06
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PNP
Park/Neutral Position
—
Park/Neutral Range
—
PCM Control Relay
—
Main Relay
#6
PSP
Power Steering Pressure
—
Power Steering Pressure
PCM
Powertrain Control Module
ECU
Engine Control Unit
#4
—
Pressure Control Solenoid
—
Line Pressure Solenoid Valve
PAIR
Pulsed Secondary Air Injection
—
Secondary Air Injection System
Pulsed
injection
—
Pump Speed Sensor
—
NE Sensor
#6
AIR
Secondary Air Injection
—
Secondary Air Injection System
Injection
with air
pump
SAPV
Secondary Air Pulse Valve
—
Reed Valve
SFI
Sequential Multipoint Fuel Injection
—
Sequential Fuel Injection
—
Shift Solenoid A
—
12 Shift Solenoid Valve
—
Shift A Solenoid Valve
—
Shift Solenoid B
—
23 Shift Solenoid Valve
—
Shift B Solenoid Valve
—
Shift Solenoid C
—
34 Shift Solenoid Valve
3GR
Third Gear
—
3rd Gear
TWC
Three Way Catalytic Converter
—
Catalytic Converter
TB
Throttle Body
—
Throttle Body
TP sensor
Throttle Position Sensor
—
Throttle Sensor
TCV
Timer Control Valve
TCV
Timing Control Valve
#6
TCC
Torque Converter Clutch
—
Lockup Position
TCM
Transmission (Transaxle) Control
Module
—
EC-AT Control Unit
—
Transmission (Transaxle) Fluid
Temperature Sensor
—
ATF Thermosensor
TR
Transmission (Transaxle) Range
—
Inhibitor Position
TC
Turbocharger
—
Turbocharger
VSS
Vehicle Speed Sensor
—
Vehicle Speed Sensor
VR
Voltage Regulator
—
IC Regulator
VAF sensor Volume Air Flow Sensor
—
Air flow Sensor
WUTWC
Warm Up Three Way Catalytic
Converter
—
Catalytic Converter
#5
WOT
Wide Open Throttle
—
Fully Open
New Standard
Previous Standard
Remark
Abbrevi-
ation
Name
Abbrevi-
ation
Name
ATDC
After Top Dead Center
ATX
Automatic Transaxle
EGR
Exhaust Gas Recirculation
EX
Exhaust
IN
Intake
MTX
Manual Transaxle
OCV
Oil Control Valve
TDC
Top Dead Center
SST
Special Service Tool
01–10–1
01
ENGINE
SECTION
01–10
Toc of SCT
MECHANICAL. . . . . . . . . . . . . . 01-10
TECHNICAL DATA . . . . . . . . . . 01-50
SERVICE TOOLS . . . . . . . . . . . 01-60
Toc of SCT
01–10
MECHANICAL
ENGINE OVERHAUL SERVICE
WARNING. . . . . . . . . . . . . . . . . . . . . . . . 01–10–2
ENGINE
MOUNTING/DISMOUNTING . . . . . . . . . 01–10–3
DISMOUNTING. . . . . . . . . . . . . . . . . . . 01–10–3
TIMING CHAIN DISASSEMBLY. . . . . . . . 01–10–4
Crankshaft Pulley Lock Bolt
Disassembly Note . . . . . . . . . . . . . . . . 01–10–5
Front Oil Seal Disassembly Note . . . . . 01–10–5
Chain Tensioner
Disassembly Note . . . . . . . . . . . . . . . . 01–10–5
Oil Pump Sprocket
Disassembly Note . . . . . . . . . . . . . . . . 01–10–5
CYLINDER HEAD (I)
DISASSEMBLY. . . . . . . . . . . . . . . . . . . . 01–10–6
Camshaft Sprocket Lock Bolt,
Variable Valve Timing Actuator
Lock Bolt Disassembly Note . . . . . . . . 01–10–7
Camshaft Cap Disassembly Note . . . . . 01–10–7
Tappet Disassembly Note . . . . . . . . . . . 01–10–7
Cylinder Head Bolt
Disassembly Note . . . . . . . . . . . . . . . . 01–10–8
CYLINDER HEAD (II)
DISASSEMBLY. . . . . . . . . . . . . . . . . . . . 01–10–8
Valve Keeper Disassembly Note . . . . . . 01–10–8
Valve Seal Disassembly Note . . . . . . . . 01–10–9
CYLINDER BLOCK (I)
DISASSEMBLY. . . . . . . . . . . . . . . . . . . . 01–10–9
Drive Plate (ATX), Flywheel (MTX)
Disassembly Note . . . . . . . . . . . . . . . . 01–10–10
CYLINDER BLOCK (II)
DISASSEMBLY. . . . . . . . . . . . . . . . . . . . 01–10–10
Connecting Rod Cap
Disassembly Note . . . . . . . . . . . . . . . . 01–10–11
Main Bearing Cap
Disassembly Note . . . . . . . . . . . . . . . . 01–10–11
CYLINDER HEAD INSPECTION . . . . . . . 01–10–11
VALVE, VALVE GUIDE
INSPECTION . . . . . . . . . . . . . . . . . . . . . 01–10–12
VALVE GUIDE REPLACEMENT . . . . . . . 01–10–13
Valve Guide Removal . . . . . . . . . . . . . . 01–10–13
Valve Guide Installation. . . . . . . . . . . . . 01–10–13
VALVE SEAT
INSPECTION/REPAIR . . . . . . . . . . . . . . 01–10–14
VALVE SPRING INSPECTION . . . . . . . . . 01–10–15
CAMSHAFT INSPECTION . . . . . . . . . . . . 01–10–15
TAPPET INSPECTION . . . . . . . . . . . . . . . 01–10–17
CYLINDER BLOCK
INSPECTION . . . . . . . . . . . . . . . . . . . . . 01–10–17
OIL JET VALVE INSPECTION . . . . . . . . 01–10–18
PISTON INSPECTION . . . . . . . . . . . . . . . 01–10–18
CRANKSHAFT INSPECTION . . . . . . . . . 01–10–19
CONNECTING ROD INSPECTION . . . . . 01–10–20
BOLT INSPECTION . . . . . . . . . . . . . . . . . 01–10–21
VARIABLE VALVE TIMING ACTUATOR
INSPECTION [With variable valve
timing mechanism]. . . . . . . . . . . . . . . . 01–10–21
OIL CONTROL VALVE (OCV)
INSPECTION [With variable valve
timing mechanism]. . . . . . . . . . . . . . . . 01–10–21
Coil Resistance Inspection . . . . . . . . . . 01–10–21
Spool Valve Operation Inspection . . . . 01–10–22
VALVE CLEARANCE
INSPECTION . . . . . . . . . . . . . . . . . . . . . 01–10–22
VALVE CLEARANCE
ADJUSTMENT. . . . . . . . . . . . . . . . . . . . 01–10–23
CYLINDER BLOCK (I) ASSEMBLY . . . . 01–10–27
Main Bearing Cap Assembly Note . . . . 01–10–28
Piston Ring Assembly Note . . . . . . . . . 01–10–28
Piston Assembly Note . . . . . . . . . . . . . 01–10–28
Connecting Rod Bearing
Assembly Note . . . . . . . . . . . . . . . . . . 01–10–29
Connecting Rod Cap
Assembly Note . . . . . . . . . . . . . . . . . . 01–10–29
Balancer Unit Assembly Note. . . . . . . . 01–10–29
CYLINDER BLOCK (II)
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . 01–10–32
Rear Oil Seal Assembly Note. . . . . . . . 01–10–33
Drive Plate (ATX), Flywheel (MTX)
Assembly Note . . . . . . . . . . . . . . . . . . 01–10–33
Oil pan Assembly Note. . . . . . . . . . . . . 01–10–34
CYLINDER HEAD (I) ASSEMBLY. . . . . . 01–10–35
Valve Seal Assembly Note . . . . . . . . . . 01–10–35
Valve Keeper Assembly Note . . . . . . . . 01–10–35
CYLINDER HEAD (II) ASSEMBLY . . . . . 01–10–36
Cylinder Head Bolt
Assembly Note . . . . . . . . . . . . . . . . . . 01–10–37
Camshaft Assembly Note. . . . . . . . . . . 01–10–37
Camshaft Sprocket, Variable Valve
Timing Actuator Assembly Note . . . . . 01–10–37
TIMING CHAIN ASSEMBLY . . . . . . . . . . 01–10–38
Oil Pump Sprocket Assembly Note . . . 01–10–39
Timing Chain Assembly Note . . . . . . . . 01–10–39
Camshaft Sprocket, Variable Valve
Timing Actuator Assembly Note . . . . . 01–10–40
MECHANICAL
01–10–2
Front Oil Seal Assembly Note . . . . . . . . 01–10–40
Engine Front Cover Assembly Note . . . 01–10–41
Crankshaft Pulley Lock Bolt
Assembly Note . . . . . . . . . . . . . . . . . . 01–10–41
Cylinder Head Cover
Assembly Note . . . . . . . . . . . . . . . . . . 01–10–42
End of Toc
ENGINE OVERHAUL SERVICE WARNING
E5U011002000E01
Warning
• Continuous exposure with USED engine oil has caused skin cancer in laboratory mice. Protect
your skin by washing with soap and water immediately after this work.
End Of Sie
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