2003 DAEWOO MATIZ Distributor

GENERAL ENGINE INFORMATION 1A–3
DAEWOO M-150 BL2
COMPONENT LOCATOR
ENGINE COMPARTMENT (TYPICAL)
(Left–Hand Drive Shown, Right–Hand Drive Similar)
D102A401
1 Power Steering Oil Reservoir
2 Coolant Reservoir
3 Canister
4 Canister Solenoid
5 Manifold Absolute Pressure (MAP) Sensor
6 Intake Manifold
7 Ignition Coil
8 Idle Air Control (IAC) Valve
9 Throttle Position (TP) Sensor
10 Throttle Body
11 Brake Fluid Reservoir
12 Wiper Motor13 Battery
14 Fuse Box
15 Air Cleaner Housing
16 Resonator
17 PCV Hose
18 Distributor
19 Exhaust Manifold
20 Snorkel
21 Engine
22 Washer Fluid Reservoir
23 Oil Level Gauge
24 Oil Filler Cap

GENERAL ENGINE INFORMATION 1A–5
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION PROCEDURE
GENERAL DIAGNOSIS
 
 Condition
 
 Probable cause
 
 Correction
Hard Starting (WithMalfunction of
Faulty fuse.
Replace the fuse.
normal cranking)Ignition System
Faulty spark plug.
Clean, adjust the plug gap or
replace.

Electric leakage at the high
tension cable.
Replace the cable.

Poor connection of the high
tension cable or lead wires.
Replace the cable or wires.

Worn distributor cap or
accumulated carbon in the
distributor cap.
Replace or clean the
distributor cap.

Damaged distributor rotor or
cap.
Replace the rotor or the cap.

Improper ignition timing.
Adjust the ignition timing.

Faulty ignition coil.
Replace the ignition coil.
Malfunction of Fuel
Lock of fuel in the fuel tank.
Feed the fuel.
System
Dirty or clogged fuel filter.
Replace the filter.

Clogged fuel pipe.
Clean the fuel pipe.

Malfunction of the fuel pump.
Replace the fuel pump.

Malfunction of the fuel
injector.
Replace the injector.

The foreign material in the
fuel tank.
Clean the fuel tank.
Decline of
Compression
Poor tightening spark plug.
Tighten to the specified
torque.
Pressure
Cracked cylinder head
gasket.
Replace the gasket.

Inadequate the valve
clearance.
Adjust the clearance.

Leakage of the valve
clearance.
Repair the valve.

Interference of the valve
stem.
Replace the valve or the
valve guide.

Low elasticity or damage of
the valve spring.
Replace the valve spring.

Abnormal interference of
pistons and cylinders.
Replace the piston ring.

Excessive wear of pistons,
rings, or cylinders.
Replace the ring or the
piston and boring or replace
the cylinder.

1A–6 GENERAL ENGINE INFORMATION
DAEWOO M-150 BL2
GENERAL DIAGNOSIS (Cont’d)
 Condition Probable cause Correction
Hard Starting (WithOthers
Broken timing belt.
Replace the belt.
normal cranking)
Malfunction of Positive
Crankcase Ventilation (PCV)
valve.
Check and replace Positive
Crankcase Ventilation (PCV)
valve if needed.

Loosening, damage or
leakage of the vacuum hose.
Connect the hose correctly
or replace it.

Leakage of intake system.
Replace intake system.
Lack of Engine PowerDecline of
Compression
Pressure
Refer to “Page 1A–5”.
Refer to “Page 1A–5”.
Malfunction of
Improper ignition timing.
Adjust the ignition timing.
Ignition System
Faulty spark plug.
Adjust or replace the spark
plug.

Malfunction of the distributor.
Repair or replace the
distributor. Check the rotor.

Electric leakage or poor
connection of the high
tension cable.
Connect the cable correctly
or replace it.
Malfunction of
Clogged fuel pipe.
Clean the pipe.
Fuel System
Clogged or contaminated
fuel filter.
Replace the filter.
Others
Clogged exhaust system.
Check and repair the
system.

Clogged or contaminated air
cleaner element.
Clean or replace the air
cleaner element.

Leak of the intake manifold
gasket.
Replace the gasket.

Dragging brakes.
Repair or replace the
brakes.

Slipping clutch.
Adjust or replace the clutch.
Rough Engine IdlingDecline of
Compression
Pressure
Refer to “Page 1A–5”.
Refer to “Page 1A–5”.
Malfunction of
Clogged fuel pipe.
Clean the pipe.
Fuel System
Clogged or contaminated
fuel filter.
Replace the filter.

Malfunction of the fuel
pressure regulator.
Replace the regulator.
Malfunction of
Ignition System
Malfunction of the spark
plug.
Adjust or replace the spark
plug.

Electric leakage or poor
connection of the high
tension cable.
Connect the cable correctly
or replace it.

Worn distributor cap terminal
or accumulated carbon in
the distributor cap.
Replace or clean the
distributor cap.

GENERAL ENGINE INFORMATION 1A–7
DAEWOO M-150 BL2
GENERAL DIAGNOSIS (Cont’d)
 Condition Probable cause Correction
Rough Engine IdlingMalfunction of
Ignition System
Loosening or damage of the
distributor rotor or cap.
Replace the rotor or cap.

Poor ignition timing.
Adjust the ignition timing.

Malfunction of the ignition
coil.
Replace the ignition coil.
Others
Clogged or contaminated air
cleaner element.
Clean or replace the air
cleaner element.

Leak of the intake manifold
gasket.
Replace the gasket.

Malfunction of Positive
Crankcase Ventilation (PCV)
valve.
Check the valve or replace it
if needed.

Poor connection or damage
or leakage of the vacuum
hose.
Connect the hose correctly
or replace it.
Engine Hesitate (Upon
pressing accelerating
pedal, the engineDecline of
Compression
Pressure
Refer to “Page 1A–5”.
Refer to “Page 1A–5”.
makes delayed
response. ThisMalfunction of
Poor ignition timing.
Adjust the ignition timing.response. This
situation is remarkable
when cruising orIgnition System
Poor spark plug or poor
adjustment of the plug gap.
Replace the plug or adjust
the gap.
starting.)
Electric leakage or poor
connection of the high
tension cable.
Connect the cable correctly
or replace it.
Others
Malfunction of the air cleaner
system.
Clean or replace the air
cleaner system.

Leak of the intake manifold
gasket.
Replace the gasket.
Engine Surging
(Engine power makes
fluctuation in a fixedDecline of
Compression
Pressure
Refer to “Page 1A–5”.
Refer to “Page 1A–5”.
speed and speed
changes withoutMalfunction of
Clogged fuel pipe.
Clean the pipe.changes without
operating the
accelerating pedal.)Fuel System
Clogged or contaminated
fuel filter.
Replace the filter.

Malfunction of the fuel
pressure regulator.
Replace the fuel pressure
regulator.
Malfunction of
Ignition System
Malfunction of the spark
plug.
Adjust or replace the spark
plug.

Electric leakage or poor
connection of the high
tension cable.
Connect the cable correctly
or replace it.

Worn distributor cap terminal
or accumulated carbon in
the distributor cap.
Clean or replace the
distributor cap.

Loosening or damage of the
distributor rotor or the cap.
Replace the distributor rotor
or the cap.

Poor ignition timing.
Adjust the ignition timing.

1A–14 GENERAL ENGINE INFORMATION
DAEWOO M-150 BL2
SPECIFICATIONS
GENERAL SPECIFICATIONS
 Application Description
  Maximum Speed 144 km/h (90 mph)
 Vehicle Capacity Gradeability 0.420 tan θ
 
Vehicle Capacity
 Minimum Turning Radius 4.5 m (14.8 ft)
  Bore × Stroke 68.5 × 72.0 mm (2.70 × 2.83 inch)
  Displacement 796 cm3 (48.6 in3)
  Compression Ratio 9.3 : 1
  Maximum Power 37.5 KW (6,000 rpm)
 
Engine Information
 Maximum Torque 68.6 Nm (50.59 lb-ft) (at 4,600 rpm)
Ignition Timing (Ignition Sequence)5 BTDC (1–3–2) / 10 BTDC (1–3–2)   
Air Conditioning System (ON)
 
1,000 ± 50 rpm  Idle Speed Air Conditioning System (OFF) 950 rpm  Engine Overhead Cam L–3 
 
 
 Ignition Type
 
 Direct Ignition System (DIS) /
High Energy Ignition (HEI)
  Distributor Optical Sensor Type
  Starter SD 80
   Unleaded BPR5EY–11, RN9YC4, WR8DCX
  Spark–Plug Leaded BPR5EY, RN9YC, WR8DC
  Fuel Injection Type MPI
  Fuel Pump Electric Motor Pump
Engine Part TypeFuel FilterCartridge Engine Part Type 
Lubricating Type
 
Forced Feed Type  Oil Pump Rotary Pump Type  Cooling Type Forced Water Circulation  Radiator Cross – Flow  Water Pump Centrifugal  Thermostat Pellet Type
  Air Cleaner Element Non Woven Fablic
  Muffler Catalytic Converter, Closed Circuit
  Battery MF
Engine PartEngine OilSJ Grade
SAE 5W30, SAE 10W30, SAE 15W40
CapacityRefrigerantFour Seasons   
Engine Disassembly
 
3.0 L (3.17 qt)   Oil Change (Including filter) 2.7 L (2.85 qt)  Engine Oil Oil Change (Not including filter) 2.5 L (2.64 qt)   Oil Level Gauge 1 L (1.06 qt) (MIN to MAX)  Coolant 3.8 L (4.02 qt) Engine Information Battery 12V–35 AH, 246 CCA
 Engine Information  

Generator

65 A
  Starter 0.8 kW
   Output Capacity 90 – 133 Lph
  Fuel Pump Output Pressure 380 kPa (55.1 Psi)
  Fuel Tank Capacity 35 L (9.2 gal), 38 L (10 gal)

DAEWOO M-150 BL2
SECTION 1B
SOHC ENGINE MECHANICAL
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in B unless otherwise
noted.
TABLE OF CONTENTS
Description and Operation 1B-2. . . . . . . . . . . . . . . . . .
Engine Type 1B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Lubrication 1B-2. . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head and Valve Train 1B-2. . . . . . . . . . . . . .
Engine Block 1B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft 1B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Rod 1B-3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Piston, Piston Ring and Piston Pin 1B-3. . . . . . . . . . .
Timing Belt and Pulley 1B-4. . . . . . . . . . . . . . . . . . . . .
Engine Mount 1B-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Locator 1B-5. . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head 1B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Block 1B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manifold & Air Flow System 1B-7. . . . . . . . . . . . . . . . .
Timing Belt & Engine Mount 1B-8. . . . . . . . . . . . . . . .
Diagnostic Information and Procedure 1B-9. . . . . . .
Compression Pressure Check 1B-9. . . . . . . . . . . . . . .
Oil Pressure Check 1B-9. . . . . . . . . . . . . . . . . . . . . . . .
Adjustment of Valve Clearance 1B-10. . . . . . . . . . . . .
Ignition Timing Check and Adjustment
(Typical) 1B-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Timing Check and Adjustment 1B-12. . . . . . . .
Repair Instructions 1B-14. . . . . . . . . . . . . . . . . . . . . . . .
On-Vehicle Service 1B-14. . . . . . . . . . . . . . . . . . . . . . . . . Air Filter Assembly 1B-14. . . . . . . . . . . . . . . . . . . . . . .
Air Filter Element 1B-15. . . . . . . . . . . . . . . . . . . . . . . . .
Positive Crankcase Ventilation (PCV) Hose
and Valve 1B-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intake Manifold 1B-16. . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust Manifold (Typical) 1B-18. . . . . . . . . . . . . . . . .
Exhaust Manifold (Euro III) 1B-20. . . . . . . . . . . . . . . .
Timing Belt 1B-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pan 1B-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump 1B-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Distributor Case 1B-26. . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head and Gasket 1B-28. . . . . . . . . . . . . . . . .
Engine Mount Damping Block 1B-32. . . . . . . . . . . . . .
Engine Mount Front Damping Bush 1B-34. . . . . . . . .
Engine Assembly 1B-35. . . . . . . . . . . . . . . . . . . . . . . . .
Unit Repair 1B-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head and Valve Train
Components 1B-47. . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Block Components 1B-59. . . . . . . . . . . . . . . . .
Specifications 1B-71. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Specifications 1B-71. . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 1B-73. . . . . . . . . .
Special Tools 1B-75. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools Table 1B-75. . . . . . . . . . . . . . . . . . . . . . .

SOHC ENGINE MECANICAL 1B–5
DAEWOO M-150 BL2
COMPONENT LOCATOR
CYLINDER HEAD
D12B4011
1 Oil Filler Cap
2 Cylinder Head Cover
3 Cylinder Head Cover (Euro III)
4 Distributor Case
5 Camshaft
6 Exhaust Rocker Arm7 Cylinder Head Gasket
8 Cylinder Head
9 Intake Rocker Arm
10 Exhaust Valve
11 Intake Valve

SOHC ENGINE MECANICAL 1B–9
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURE
COMPRESSION PRESSURE CHECK
Tools Required
09915–64510 Compression Pressure Gauge
Check the compression pressure in the following proce-
dures:
1. Warm up the engine to the normal operating tempera-
ture (Cooling temperature : 80–90C (176–194F)).
2. Stop the engine and then remove the high tension
cable and the spark plug.
3. Disconnect the distributor optical sensor connector.
4. Install the compression pressure gauge 09915–64510
(a) in the hole of spark plug.
D12B301A
5. Disengage the clutch in Neutral (to lighten starting
load on engine upon cranking), and depress the ac-
celerator all the way to make the throttle fully open.
6. Crank the engine with the starting motor, and read the
highest pressure on the compression pressure gauge.
The difference of measured value between cylinders
is 98.06kPa (14.22 psi) and less.
On checking, make the connection perfectly airtight
between the hole of spark plug and compression pres-
sure gauge.
Unit Standard Limit



Compression
Pressure
– 400 rpm
kPa(psi)1,225.75
(177.73)
1,176.72–
1,274.78
(170.62–
184.84)
7. After checking, remove the gauge and install the re-
moved parts.
OIL PRESSURE CHECK
Tools Required
09915–77310 Oil Pressure Gauge
Prior to check oil pressure, check the followings:
Check oil level and add if required.
Replace the discolored, deteriorated or diluted oil.
Check any oil leakage and repair the defective parts.
Check the compression pressure in the following proce-
dures:
1. Remove the oil pressure switch (b) from the cylinder
block.
2. Install the oil pressure gauge 09915–77310 (c) to the
mounting place of the oil pressure switch.
D12B302A
3. Start the engine and warm up to the normal operating
temperature.
4. Raise the engine speed up to 2,000rpm and then
read oil pressure.
Item Unit Standard
Oil Pressure – 2000rpmkPa
(psi)245.15–294.18
(35.55–42.66)
5. After checking, wrap the threads of oil pressure
switch with a seal tape and tighten it to the specified
torque 12–16 N
m (106–144 lb-in).
6. Start the engine and check oil pressure switch for oil
leakage.