Guangxi Liuzhou Wuling Motors LJ465Q-1ANE1 User manual

Model LJ465Q-1ANE1 Petrol Engine
Instruction Book

Guangxi Liuzhou Wuling Motors Co., Ltd Liuzhou Machine Plant
Respectfully notify users
Thank you for choosing Model LJ465Q-1ANE1 electronic fuel injection type (DELPHI
system) front drive petrol engine produced by our plant. Model LJ465Q-1ANE1 petrol engine
(including petrol engine, clutch and transmission), a new type petrol engine which meets the
requirements of environmental protection, is jointly developed by our plant and DELPHI

company, is characterized by compact structure, strong rising power, low oil consumption, high
speed and low noise etc. Also, because the petrol engine adopts advanced petrol engine
management system (abbreviated to electronic fuel injection or EMS), it works normally under
every operating condition, therefore, mini buses fitted with the electronic fuel injection type
petrol engines produced by our plant have comfortable driving, optimum economic and perfect
environmental protection performance.
This instruction book briefly demonstrates main technical performance, technical data and
service & maintenance of Model LJ465Q-1ANE1 petrol engine. Please read this manual
carefully and observe the regulations strictly before you use the petrol engine so that your
vehicle is often kept under an optimum condition to play greater efficiency and achieve better
economic benefits. When you read this instruction book, if you find some different or
mutual contradictions for the same maintenance methods about the engine provided in
other materials, please perform maintenance according to this instruction book.
To continuously improve performance and quality of the petrol engine and serve vast

customers, if you find problems or have improvement opinions during operation of the petrol
engine produced by our plant, kindly let us know by correspondence even if you are engaged, we
will thank you very much.
Model LJ465Q-1ANE1 petrol engine is an ideal engine of mini buses; purchasing
Model LJ465Q-1ANE1 petrol engine as minibus engine is your optimum choice.
Guangxi Liuzhou Wuling Motors Co., Ltd Liuzhou Machine Plant

Descriptions of Symbols
“”: Indicates driver and passenger ’s personnel safety, please pay special attention to and
follow it as required.
“”: Indicates the safety and maintenance of the engine, please follow it as required.
“”: Indicates simplifying and facilitating maintenance.

Contents
Chapter 1 Technical Characteristics and Specifications of the Petrol Engine
Section 1 Technical Characteristics and Specifications of the Petrol Engine
Section 2 External Characteristics Curve of the Petrol Engine
Chapter 2 Application of the Petrol Engine
Section 1 Brief Introduction
Section 2 Notices to Application of the Petrol Engine
Section 3 Running-in of the Petrol Engine
Chapter 3 Maintenance of the Petrol Engine
Section 1 Maintenance of the Lubrication System
Section 2 Maintenance of the Cooling System
Section 3 Maintenance of the Generator Belt
Section 4 Maintenance of the Petrol Filter
Section 5 Maintenance of the Distribution Mechanism and Synchronous Chain
Section 6 Maintenance of the Spark Plug
Section 7 Assembly of Dual-coil Ignition System
Section 8 Maintenance of Forced VentilationValve (PCV Valve) of the Crankcase

Chapter 4 Periodic Inspection of the Petrol Engine
Section 1 Service Intervals and Maintenance Content of the Petrol Engine
Section 2 Torque of Main Bolts of the Petrol Engine
Section 3 Torque of Main Bolts of the Transmission
Section 4 Torque of Main Bolts of the Clutch
Chapter 5 Main Troubles and Troubleshooting of the Petrol Engine
Section 1 Difficult Starting of the Petrol Engine
Section 2 Sufficient Power in Running
Section 3 Knocking Sound inside the Petrol Engine
Section 4 Overheating of the Petrol Engine
Section 5 Excessive Engine Oil Consumption
Section 6 Difficult Gearshift of the Transmission
Section 7 Noise inside the Clutch
Chapter 6 Sealing-up and Unsealing of the Petrol Engine
Section 1 Safekeeping of the Petrol Engine
Section 2 Unsealing of the Petrol Engine

Chapter 1 Technical Characteristics and Specifications of the
Petrol Engine
Model
LJ465Q-1ANE1
Type
Four-cylinder, four stroke, water cooling, inline, multiple
spherical combustion chamber, overlapping camshaft,
electronic fuel injection and electronic control ignition
Cylinder diameter
65.5 mm
Piston stroke
78 mm
Compression ratio
8.8:1
Displacement
1.1 L
Rated power
38.5 kW
Maximum torque
83 N·m/(3000 rpm ~3500 rpm)
Minimum fuel consumption 275g/ kW·h
Rated revolution
5200 rpm
Idle speed
(900±30) rpm
Idle discharge
GB14761-99 Co
≤
3.5%
Rotation
Clockwise (viewed from the front side of the engine)
Work order
1-3-4-2
Engine oil pressure
0.924Mpa~0.490Mpa (3000rpm)
Overall dimensions
(L
×
W
×
H) 451
×
550
×
647 mm
Net quality
95 kgs excluding the transmission

Fuel grade
Over than No. 90 unleaded gasoline (GB17930-1999)
Oil grade
SP 15W/40 or API SG SAE15W40 gasoline engine oil is
used at above -20℃of ambient temperature;
SP 15W/30 or API SG SAE15W30 gasoline engine oil is
used at above -20℃of ambient temperature
Engine oil amount
2.7L (newly fitted engine oil
filter)
2.5 L (old engine oil filter)
Coolant
Ethanediol water solution or soft water
Clutch
Type
Single, membrane spring
Overall
dimensions
(Pressure plate housing): Φ271
×
33.6 mm
Weight
2.7 kgs
Transmission
Every gear ratio
Four-gear transmission
Five-gear transmission
1st gear
3.818
3.818
2nd gear
2.210
2.210
3rd gear
1.423
1.423
4th gear
0.906
1.033
5th gear
0.844
Transmission
Every gear ratio
Reverse gear: 3.583
Main reduction ration
4.444

Type
Gear engagement,
synchronizer, four
forward gear, one reverse
gear
Gear engagement,
synchronizer, five forward
gear, one reverse gear
Overall
dimensions (L×W×H)
306×394.5×440 mm3(L×W×H)
342.7×394.5×440 mm3
Weight
23 kgs
25 kgs
Lubrication
85W/90 GL-4 or GL-5 gear oil GB 13895-92
or fix the brand in special areas according to the application
environment and temperature
Amount of
lubrication 2.1 L
Note: The idle discharge standard of the petrol engine is national mandatory regulations and will
be continuously amended. Model LJ465Q-1ANE1 petrol engine will continuously meet the
requirements of the latest national standard.

Chapter 2 Application of the Petrol Engine
1．Multiple-point fuel injection system
This system is multiple-point sequential fuel injection system, four oil injectors of four
cylinders inject oil in the order of 1-3-4-2. Every injector injects oil once for every two
crankshaft revolutions of the petrol engine.
2．Idle speed
The petrol engine should run at idle speed for several minutes to warm up after being
started.
★★
The idle discharge index of the engine produced by the plant at ex-factory is strictly
controlled within the requirements of the national standard, idle speed of model
LJ465Q-1ANE1 petrol engine is 900
±30 r/min. The idle mechanism of the petrol engine
is reset at ex-factory, customers should change it arbitrarily
Keep the engine at hot state while checking discharge, that is above 80
℃
of water
temperature & above 60
℃
of engine oil temperature
（
at 900
±
30 r/min of idle speed
）
.
Idle and discharge index are changed any time, make periodical detection and
adjustment for every test point during the application of the engine.

Trouble Code List
Trouble Code
Trouble Descriptions
P0105
Too high intake manifold pressure
P0105
Tow low intake manifold pressure
P0110
Too low intake manifold temperature
P0110
Too high intake manifold temperature
P0115
Too low coolant temperature (circuit open or shorted to battery)
P0115
Too low coolant temperature (circuit shorted to earth)
P0120
Too high throttle-valve position (circuit open or shorted to battery)
P0120
Too low throttle-valve position (circuit shorted to earth)
P0130
No signal from the oxygen sensor
P0170
Excessive rich period of the oxygen sensor
Trouble Code
Descriptions
P0170
Excessive thin period of the oxygen sensor
P0201
Circuit malfunction of injector A
（
cylinder 1
）
P0202
Circuit malfunction of injector B (cylinder 3)
P0203
Circuit malfunction of injector C (cylinder 4)
P0204
Circuit malfunction of injector D (cylinder 2)
P0230
Fuel pump relay circuit shorted to battery
P0230
Fuel pump relay circuit open or shorted to earth

P0335
No signal from 58X crankshaft sensor
P0335
Signal malfunction of 58X crankshaft sensor
P0351
Coil 1-4 circuit shorted to battery
P0351
Coil 1-4 circuit open or shorted to earth
P0352
Coil 2-3 circuit shorted to battery
P0352
Coil 2-3 circuit open or shorted to earth
P0443
Carbon canister solenoid valve circuit shorted to battery
P0443
Carbon canister solenoid valve circuit open or shorted to earth
P0480
Fan 1 circuit shorted to battery
P0480
Fan 1 circuit open or shorted to earth
Trouble Code
Trouble Descriptions
P0481
Fan 2 circuit open or shorted to battery
P0481
Fan 2 circuit open or shorted to earth
P0500
No signal from the speed sensor
P0505
Idle control malfunction
P0560
Excessive battery voltage
P0650
Failure indicator circuit shorted to battery
P0650
Failure indicator circuit open or shorted to earth
P1530
Air conditioner relay circuit shorted to battery
P1530
Air conditioner relay circuit open or shorted to earth
P1604
EEPROM memory malfunction
P1605
FLASH memory malfunction

P1610
Burglar-proof controller malfunction
P1610
Communication error between ECU and burglar alarm
P2000
Too high temperature of the front evaporimeter
P2000
Too low temperature of the front evaporimeter
P2001
Too high temperature of the rear evaporimeter
P2001
Too low temperature of the rear evaporimeter
Trouble Code
Trouble Descriptions
P2100
Rear circulation cut-off valve of air conditioner circuit shorted to
battery
P2100
Rear circulation cut-off valve of air conditioner circuit open or
shorted to earth
Section 3 Running-in of the Petrol Engine
The service life of the petrol engine is mainly dependent on the earlier use. New petrol
engine should be run-in in the vehicle for 2500 kilometers according to the running-in standard

or for 30 hours according to the running-in standard on the test-bed.
The following should be done to run-in the petrol engine in the vehicle:
1. Check
Check engine oil, coolant, gasoline, battery electrolyte for sufficiency, replenish and repair
if insufficient amount and leakage.
2. Road surface
Vehicles should run on the cement or asphalt road surface, do not attempt to run on other
road surfaces, especially on sand & mud roads.
3. Running-in standard
The petrol engine should be run-in on the vehicle, follow the running-in standard of the
petrol engine shown the following table, it is not allowed to be higher than every gear speed
shown in the following table. If there exists between the vehicle running-in standard and this
standard, this standard should be followed.

Running-in Standard of New Petrol Engine Fitted in the Vehicle
Transmission gear Vehicle Speed
1st gear 10 km/h
2nd gear 20 km/h
3rd gear 35 km/h
4th gear 55 km/h
5th gear 65 km/h
4. Load
During running-in, the vehicle load is not allowed to exceed 50 % of rated load in the first
1000 kilometers and 75 % of rated load in the next 1500 kilometers.
5. Maintenance

The petrol engine should be maintained according to the specified items shown in the
following table after running-in new vehicle for 2500 kilometers.
Maintenance Items after Running-in New Petrol Engine
No. Items Maintenance contents
1 Generator belt Check wear and adjust tension
2 Synchronous chain tensioner Check flexibility and adjust tension
3 Throttle valve clearance Check
, adjusting
if necessary
Cold 0.13mm～0.18mm
Warm 0.23mm～0.28mm
4 Cylinder head bolt and fixed nuts
of intake & exhaust manifold Tighten according to the specified torque

5 Engine oil filter Replace
6 Engine oil of the petrol engine Replace
7 Transmission gear oil Replace
8 Spark plug clearance Check and adjust to the specified value
9 Idle speed and discharge Check idle and discharge value and adjust
according to regulations

Chapter 3 Maintenance of the Petrol Engine
Section 1 Maintenance of the Lubrication System
1. Oil used for the petrol engine
When ambient temperature is over than -20℃, SF15W/40 gasoline engine oil（or API SG
SAE15W40 gasoline engine oil）is used;
When ambient temperature is lower than-20 ℃, SF5W/30 gasoline engine oil
（GB11121-1995）or API SG SAE5W30 gasoline engine oil is used.

Replace engine oil after running-in new petrol engine for 2500 kilometers and
run smoothly every 5000 kilometers.
2. Engine oil level of the petrol engine
Engine oil amount inside the engine oil tray is measured with a dipstick on the right side of

the petrol engine. Perform measurement after the petrol engine stops running for about 5 minutes,
draw out the dipstick, wipe out engine oil with a piece of clean cloth, then insert engine oil tray
again and measure engine oil level.
Check engine oil level before running, engine oil level should be kept between the upper
limit and lower limit of the engine oil dipstick, if oil level is near or lower than the lower limit,
replenish engine oil to the upper limit.
3. Replace engine oil of the petrol engine
Change engine oil of the petrol engine on the asphalt road surface once every 5000
kilometers, often check it on the severe sand and mud, change in time according to the oil quality,
but it’s not allowed to exceed once every 5000 kilometer.
When changing engine oil of the petrol engine, warm up the petrol engine for 10 minutes,
open the oil cap after stopping the vehicle, and tighten the discharge plug of the engine oil tray
of the petrol engine, drain out engine oil and tighten the oil plug. Replenish about 3 liters of new
engine oil from oil cap, and close the oil cap.
Start the petrol engine and run for 5 minutes, check for oil leakage, then stop the vehicle,
check oil level after stopping the vehicle and wait for 5 minutes, replenish engine oil to upper