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 1E
ENGINE ELECTRICAL
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 1E-2. . . . . . . . . . . . . . . . . .
Battery 1E-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratings 1E-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reserve Capacity 1E-2. . . . . . . . . . . . . . . . . . . . . . . . .
Cold Cranking Amperage 1E-2. . . . . . . . . . . . . . . . . . .
Built-In Hydrometer 1E-2. . . . . . . . . . . . . . . . . . . . . . . .
Charging Procedure 1E-3. . . . . . . . . . . . . . . . . . . . . . .
Charging Time Required 1E-3. . . . . . . . . . . . . . . . . . . .
Charging a Completely Discharged Battery
(Off the Vehicle) 1E-3. . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting Procedure 1E-3. . . . . . . . . . . . . . . . . . .
Generator 1E-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System 1E-4. . . . . . . . . . . . . . . . . . . . . . . . . .
Starter 1E-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting System 1E-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
Distributor 1E-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Coil 1E-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark Plug 1E-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Locator 1E-6. . . . . . . . . . . . . . . . . . . . . . . .
Starting System 1E-6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System (A-type: MANDO) 1E-7. . . . . . . . . .
Charging System (B-type: DAC) 1E-8. . . . . . . . . . . . .
Ignition System 1E-9. . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Information and Procedure 1E-10. . . . . .
Ignition System 1E-10. . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Load Test 1E-12. . . . . . . . . . . . . . . . . . . . . . . . Generator Output Test 1E-12. . . . . . . . . . . . . . . . . . . .
Generator System Check 1E-13. . . . . . . . . . . . . . . . . .
Repair Instructions 1E-14. . . . . . . . . . . . . . . . . . . . . . . .
On-Vehicle Service 1E-14. . . . . . . . . . . . . . . . . . . . . . . . .
Starter 1E-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Generator 1E-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery 1E-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Distributor 1E-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Coil 1E-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Repair 1E-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Motor 1E-19. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Generator (A-type: MANDO) 1E-24. . . . . . . . . . . . . . .
Generator (B-type: DAC) 1E-29. . . . . . . . . . . . . . . . . .
Distributor Assembly 1E-34. . . . . . . . . . . . . . . . . . . . . .
Schematic and Routing Diagrams 1E-37. . . . . . . . . .
Starting System 1E-37. . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System 1E-38. . . . . . . . . . . . . . . . . . . . . . . . .
Ignition System Circuit – Tipical 1E-39. . . . . . . . . . . .
Ignition System Circuit – Euro III 1E-40. . . . . . . . . . .
Specifications 1E-41. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Specifications 1E-41. . . . . . . . . . . . . . . . . . . . .
Generator Specifications 1E-41. . . . . . . . . . . . . . . . . .
Ignition System Specifications 1E-41. . . . . . . . . . . . . .
Battery Specifications 1E-41. . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 1E-42. . . . . . . . . .
ENGINE ELECTRICAL 1E–3
DAEWOO M-150 BL2
CHARGING PROCEDURE
1. Batteries with the green dot showing do not require
charging unless they have just been discharged, such
as in cranking a vehicle.
2. When charging sealed-terminal batteries out of the
vehicle, install the adapter kit. Make sure all the char-
ger connections are clean and tight. For best results,
batteries should be charged while the electrolyte and
the plates are at room temperature. A battery that is
extremely cold may not accept current for several
hours after starting the charger.
3. Charge the battery until the green dot appears. The
battery should be checked every half-hour while
charging. Tipping or shaking the battery may be nec-
essary to make the green dot appear.
4. After charging, the battery should be load tested. Re-
fer to “Starter Motor” in this section.
CHARGING TIME REQUIRED
The time required to charge a battery will vary depend-
ing upon the following factors:
Size of Battery – A completely discharged large
heavy-duty battery requires more than twice the re-
charging as a completely discharged small passenger
car battery.
Temperature – A longer time will be needed to
charge any battery at -18C (0F) than at 27C
(81F). When a fast charger is connected to a cold
battery, the current accepted by the battery will be
very low at first. The battery will accept a higher cur-
rent rate as the battery warms.
Charger Capacity – A charger which can supply only
5 amperes will require a much longer charging period
than a charger that can supply 30 amperes or more.
State-of-Charge – A completely discharged battery
requires more than twice as much charge as a one-
half charged battery. Because the electrolyte is nearly
pure water and a poor conductor in a completely dis-
charged battery, the current accepted by the battery
is very low at first. Later, as the charging current
causes the electrolyte acid content to increase, the
charging current will likewise increase.
CHARGING A COMPLETELY
DISCHARGED BATTERY
(OFF THE VEHICLE)
Unless this procedure is properly followed, a perfectly
good battery may be needlessly replaced.
The following procedure should be used to recharge a
completely discharged battery:
1. Measure the voltage at the battery terminals with an
accurate voltmeter. If the reading is below 10 volts,
the charge current will be very low, and it could take
some time before the battery accepts the current inexcess of a few milliamperes. Refer to “Charging
Time Required” in this section, which focuses on the
factors affecting both the charging time required and
the rough estimates in the table below. Such low cur-
rent may not be detectable on ammeters available in
the field.
2. Set the battery charger on the high setting.
Important: Some chargers feature polarity protection
circuitry, which prevents charging unless the charger
leads are correctly connected to the battery terminals. A
completely discharged battery may not have enough
voltage to activate this circuitry, even though the leads
are connected properly, making it appear that the bat-
tery will not accept charging current. Therefore, follow
the specific charger manufacturer’s instruction for by-
passing or overriding the circuitry so that the charger will
turn on and charge a low-voltage battery.
3. Battery chargers vary in the amount of voltage and
current provided. The time required for the battery to
accept a measurable charger current at various volt-
ages may be as follows:
VoltageHours
16.0 or moreUp to 4 hours
14.0–15.9Up to 8 hours
13.9 or lessUp to 16 hours
If the charge current is not measurable at the end
of the above charging times, the battery should be
replaced.
If the charge current is measurable during the
charging time, the battery is good, and charging
should be completed in the normal manner.
Important: It is important to remember that a complete-
ly discharged battery must be recharged for a sufficient
number of ampere hours (AH) to restore the battery to a
usable state. As a general rule, using the reserve capac-
ity rating (RC) as the number of ampere hours of charge
usually brings the green dot into view.
If the charge current is still not measurable after
using the charging time calculated by the above
method, the battery should be replaced.
If the charge current is measurable during the
charging time, the battery is good, and charging
should be completed in the normal manner.
JUMP STARTING PROCEDURE
1. Position the vehicle with the good (charged) battery
so that the jumper cables will reach from one battery
to the other.
2. Turn off the ignition, all the lights, and all the electrical
loads in both vehicles. Leave the hazard flasher on if
there may be other traffic and any other lights needed
for the work area.
1E–4 ENGINE ELECTRICAL
DAEWOO M-150 BL2
3. In both vehicles, apply the parking brake firmly.
Notice: Make sure the cables are not on or near pulleys,
fans, or other parts that will move when the engine
starts, damaging the parts.
4. Shift a manual transaxle to NEUTRAL.
Caution: Do not use cables that have loose or miss-
ing insulation, or injury could result.
5. Clamp one end of the first jumper cable to the positive
terminal on the battery. Make sure it does not touch
any other metal parts. Clamp the other end of the
same cable to the positive terminal on the other bat-
tery. Never connect the other end to the negative ter-
minal of the discharged battery.
Caution: Do not attach the cable directly to the neg-
ative terminal of the discharged battery. Doing so
could cause sparks and possible battery explosion.
6. Clamp one end of the second cable to the negative
terminal of the booster battery. Make the final con-
nection to a solid engine ground, such as the engine
lift bracket, at least 450 millimeters (18 inches) from
the discharged battery.
7. Start the engine of the vehicle with the good battery.
Run the engine at a moderate speed for several min-
utes. Then start the engine of the vehicle which has
the discharged battery.
8. Remove the jumper cables by reversing the above
sequence exactly. Remove the negative cable from
the vehicle with the discharged battery first. While re-
moving each clamp, take care that it does not touch
any other metal while the other end remains at-
tached
.
GENERATOR
The Delco-Remy CS charging system has several mod-
els available, including the ∅114D (A-type) or CS114D
(B-type). The number denotes the outer diameter in
millimeters of the stator lamination.
CS generators are equipped with internal regulators.
The Y connection (A-type) or Delta (B-type) stator, a
rectifier bridge, and a rotor with slip rings and brushes
are electrically similar to earlier generators. A conven-
tional pulley and fan are used. There is no test hole.
Unlike three-wire generators, the ∅114D (A-type) or
CS114D (B-type) may be used with only two connec-
tions: battery positive and an ‘‘L’’ terminal to the charge
indicator lamp.
As with other charging systems, the charge indicator
lamp lights when the ignition switch is turned to ON, and
goes out when the engine is running. If the charge indi-
cator is on with the engine running, a charging system
defect is indicated.
The regulator voltage setting varies with temperature
and limits the system voltage by controlling the rotorfield current. The regulator switches rotor field current
on and off. By varying the on-off time, correct average
field current for proper system voltage control is ob-
tained. At high speeds, the on-time may be 10 percent
and the off-time 90 percent. At low speeds, with high
electrical loads, on-time may be 90 percent and the off-
time 10 percent.
CHARGING SYSTEM
The Delco-Remy CS charging system has several mod-
els available, including the ∅114D (A-type) or CS114D
(B-type). The number denotes the outer diameter in
millimeters of the stator laminations.
CS generators use a new type of regulator that incorpo-
rates a diode trio. The Y connection (A-type) or Delta (B-
type) stator, a rectifier bridge, and a rotor with slip rings
and brushes are electrically similar to earlier generators.
A conventional pulley and fan are used. There is no test
hole.
STARTER
Wound field starter motors have pole pieces, arranged
around the armature, which are energized by wound
field coils.
Enclosed shift lever cranking motors have the shift lever
mechanism and the solenoid plunger enclosed in the
drive housing, protecting them from exposure to dirt, icy
conditions, and splashes.
In the basic circuit, solenoid windings are energized
when the switch is closed. The resulting plunger and
shift lever movement causes the pinion to engage the
engine flywheel ring gear. The solenoid main contacts
close. Cranking then takes place.
When the engine starts, pinion overrun protects the ar-
mature from excessive speed until the switch is opened,
at which time the return spring causes the pinion to dis-
engage. To prevent excessive overrun, the switch
should be released immediately after the engine starts.
STARTING SYSTEM
The engine electrical system includes the battery, the
ignition, the starter, the generator, and all the related wir-
ing. Diagnostic tables will aid in troubleshooting system
faults. When a fault is traced to a particular component,
refer to that component section of the service manual.
The starting system circuit consists of the battery, the
starter motor, the ignition switch, and all the related elec-
trical wiring. All of these components are connected
electrically
.
DISTRIBUTOR
Distributor distributes the high tension voltage induced
from ignition coil, to each spark plug of each cylinder in
1E–6 ENGINE ELECTRICAL
DAEWOO M-150 BL2
COMPONENT LOCATOR
STARTING SYSTEM
D102E401
1 Starter Motor Assembly
2 Starter Solenoid Assembly
3 Starter Housing
4 Shift Lever
5 Armature Set
6 Armature7 Pinion Gear Assembly
8 Ring Set
9 Field Frame Assembly
10 Brush Holder Assembly
11 Contact End Frame Assembly
12 Starter Through - Bolts
1E–10 ENGINE ELECTRICAL
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURE
IGNITION SYSTEM
ConditionProbable CauseCorrection
No CrankLow battery voltage.Charging the battery or Replace
the battery.
Battery cable is loose, corroded,
or damaged.Repair or Replace the battery
cable.
Faulty starter motor or starter
motor circuit is open.Repair or Replace the starter
motor/starter motor circuit.
Faulty ignition switch or fuse Ef2
is blown.Replace the ignition switch or fuse
Ef2.
Ground short.Repair the ground short.
Crank OK, But Too SlowLow battery voltage.Charging the battery or Replace
the battery.
Batter.
Battery cables is loose, corroded,
or damaged.Repair or Replace the battery
cable.
Faulty starter motor.Repair or Replace the starter
motor.
Starter Motor Does Not StopFaulty starter motor.Repair or Replace the starter
motor.
Faulty ignition switch.Replace the ignition switch.
Starter Motor Running, But Not
CrankingBroken the clutch pinion gear or
faulty starter motor.Replace the starter motor.
Broken the flywheel ring gear.Replace the flywheel.
Connected circuit is open.Repair the open circuit.
Overcharging BatteryFaulty the IC regulator.Replace the IC regulator.
Battery DischargeLoosen the generator drive belt.Adjust the belt tension or Replace
the belt.
The circuit is open or a short.Repair the open or a short circuit.
Faulty IC regulator.Replace the IC regulator.
Battery run down.Replace the battery.
Open ground circuit.Repair the open ground circuit.
Charging Indicator Lamp Fault IC regulator.Replace the IC regulator.
Does Not Work When the
Ignition Switch ONCharging indicator lamp is blown
or fuse F8 is blown.Repair or Replace the charging
indicator lamp/fuse F8.
(Engine Does Not Work)Faulty ignition switch.Replace the ignition switch.
Generator ground circuit is open
or a short.Repair the circuit.
Charging Indicator Lamp Faulty IC regulator.Replace the IC regulator.
Does Not Put Out Lights After
Starting the EngineBattery cable is corroded or
damaged.Repair or Replace the battery
cable.
Loosen the generator drive belt.Adjust the belt tension or Replace
the belt.
Faulty wiring harness.Repair the wiring harness.
1E–14 ENGINE ELECTRICAL
DAEWOO M-150 BL2
REPAIR INSTRUCTIONS
ON–VEHICLE SERVICE
D12E5011
STARTER
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the electrical connector and clip around
the starter.
Remove the engine oil temperature sensor to dis-
connect the harness connector (1).
Remove the starter solenoid nut to disconnect the
electrical cable (2).
Remove the harness clip bolt to disconnect the
harness clip (3).
Remove the ground bolt (4).
D102E502
3. Remove the starter assembly.
Remove the starter mounting bolts (1).
Remove the starter assembly (2).
D12E5031
Installation procedure
1. Install in the reverse order of removal.
2. Install the starter mounting bolts and starter solenoid
nut.
Tighten
Tighten the starter mounting bolts to 55–65 Nm
(41–48 lb-ft) (a).
Tighten the starter solenoid nut to 9–12 Nm
(80–106 lb-in) (b).
Tighten the harness clip bolt to 9–12 Nm (80–106
lb-in) (c).
Tighten the ground bolt to 35–41 Nm (26–30 lb-ft)
(d).
ENGINE ELECTRICAL 1E – 19
DAEWOO M-150 BL2
REPAIR INSTRUCTIONS
UNIT REPAIR
D102E701
STARTER MOTOR
Inspection / Measurement
(Before the Overhaul)
1. Remove the starter. Refer to “Starter” in this section.
2. Pinion clearance inspection.
Disconnect the starter motor terminal M (1).
Connect the 12-volt battery lead to the starter mo-
tor terminals M and S.
Notice: Complete the testing in a minimum amount of
time to prevent overheating and damaging the solenoid.
(in 10 seconds)
D102E702
Switch on to move the pinion gear (2).
Now check the clearance between the pinion and
the stopper with the filler gauge (3).
If the clearance does not fall within the limits,
check for improper installation and replace all worn
parts.
D102E703
3. Magnetic switch pull-in test.
Disconnect the starter motor terminal M (1).
Connect the 12-volt battery lead to the starter mo-
tor terminals M and S.
Notice: Complete the testing in a minimum amount of
time to prevent overheating and damaging the solenoid.
(in 10 seconds)