SSANGYONG 2004 Rexton 2.7XDi Gebrauchsanweisung

DI0A-1

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GENERAL INFORMATION

DI ENG SM - 2004.4

GENERAL INFORMATION

00SECTION DI0A

Table of Contents

CLEANNESS ....................................... DI0A-3

STRUCTURE ...................................... DI0A-8

ENGINE CONTROLS ....................... DI0A-11

ECU related components ..............DI0A-11

Engine and sensors ..................... DI0A-12

Electrical components and

pre heating system ...................... DI0A-13

INTAKE SYSTEM ............................. DI0A-14

Intake air flow chart ...................... DI0A-15

INTAKE SYSTEM ............................. DI0A-16

Exhaust air flow chart ................... DI0A-17

LUBRICATION SYSTEM .................. DI0A-18

COOLING SYSTEM ......................... DI0A-19

Coolant flow chart ........................ DI0A-20

FUEL SYSTEM ................................. DI0A-21

Fuel supply system ...................... DI0A-22

GENERAL SPECIFICATIONS ........... DI0A-23

Vehicle specifications ................... DI0A-23

Maintenance ................................ DI0A-26

VEHICLE IDENTIFICATION .............. DI0A-28

HOW TO USE AND MAINTAIN WORKSHOP

MANUAL ........................................... DI0A-30

Consists of workshop manual ...... DI0A-30

Manual description ...................... DI0A-30

Guidelines for service work

safety ........................................... DI0A-31

Lifting points ................................. DI0A-36

Tightening torque of standard

bolts.............................................. DI0A-37

DI0A-3

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GENERAL INFORMATION

DI ENG SM - 2004.4

The fuel system for DI engine consists of transfer (low pressure) line and high pressure line. Its highest pressure

reaches over 1600 bar. Some components in injector and HP pump are machined at the micrometer 100 µm of

preciseness. The pressure regulation and injector operation are done by electric source from engine ECU.

Accordingly, if the internal valve is stucked due to foreign materials, injector remains open. Even in this case, the

HP pump still operates to supply high pressurized fuel. This increases the pressure to combustion chamber (over

250 bar) and may cause fatal damage to engine.

You can compare the thickness of injector nozzle hole and hair as shown in below figure (left side). The right side

figure shows the clearance between internal operating elements.

Cleanness of DI Engine Fuel System and Service Procedures

The core elements of fuel system has very high preciseness that is easily affected by dust or very small foreign

material. Therefore, make sure to keep the preliminary works and job procedures in next pages. If not, lots of

system problems and claims may arise.

CLEANNESS

Y220_0A035

Hair

Nozzle hole

Valve actuator lift: 0.028 mm

Diameter: 0.40 mm

Operating

clearance:

0.002 mm

Diameter:

2.0 mm

DI0A-4

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GENERAL INFORMATION

DI ENG SM - 2004.4

1. Always keep the workshop and lift clean (especially, from dust).

2. Always keep the tools clean (from oil or foreign materials).

3. Wear a clean vinyl apron to prevent the fuzz, dust and foreign materials from getting into fuel system. Wash

your hands and do not wear working gloves.

4. Follow the below procedures before starting service works for fuel system.

Job procedures

Carefully listen the symptoms and problems from customer.

Visually check the leaks and vehicle appearance on the wiring harnesses

and connectors in engine compartment.

Perform the diagnosis proceee with Scan-i

(refer to “DIAGNOSIS” section in this manual).

Locate the fault. If the cause is from fuel system (from priming pump to

injector, including return line), follow the step 1 through step 3 above.

5. If the problem is from HP pump, fuel supply line or injector, prepare the clean special tools and sealing caps

to perform the diagnosis for DI engine fuel system in “DIAGNOSIS” section in this manual. At this point,

thoroughly clean the related area in engine compartment.

Notice

Clean the engine compartment before starting service works.

Tool kit for high pressure line Took kit for low pressure line Removal tool box and cap kits

DI0A-5

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DI ENG SM - 2004.4

6. Follow the job procedures. If you find a defective component, replace it with new one.

Y220_0A039

Fuel pressure sensor

Common rail

Injection

pipe

Injector

High pressure pump

IMV valve

Transfer pump and high

pressure pump

Fuel temperature sensor

Fuel tank

Fuel filter

Priming

pump

Water separator

Water detection sensor

Disconnect the negative battery cable.

Plug the disconnected parts with sealing caps, and remove the caps immediately

before replacing the components.

Once disconnected, the fuel pipes between HP pump and fuel rail and between fuel rail

and each injector should be replaced with new ones. The pipes should be tightened to

specified tightening torques during installation. Over or under torques out of specified

range may cause damages and leaks at connections. Once installed, the pipes have been

deformed according to the force during installtion, therefore they are not reusable.

The copper washer on injector should be replaced with new one. The injector holder bolt

should be tightened to specified tightening torque as well. If not, the injection point may be

deviated from correct position, and it may cause engine disorder.

Supply line

Return line

Cap position

Use special tools and torque wrench to perform the correct works.

For safety reasons: check pressure is low before opening the HP systems (pipes)

DI0A-6

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GENERAL INFORMATION

DI ENG SM - 2004.4

7. Plug the removed components with clean and

undamaged sealing caps and store it into the box to

keep the conditions when it was installed.

8. Clear the high pressure offset value by Scan-100 after

replacing the high pressure pump.

9. To supply the fuel to transfer line of HP pump press

the priming pump until it becomes hard.

10. Check the installed components again and connect

the negative battery cable. Start the engine and check

the operating status.

11. With Scan-i, check if there are current faults and erase

the history faults.

Note

For details, refer to “DI10 Diagnosis teable”.

Y220_0A040

Y220_0A041

Y220_0A042

Priming pump

Warning

Do not crank engine before having filled pump.

DI0A-7

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GENERAL INFORMATION

DI ENG SM - 2004.4

SYSTEM SUPPLEMENT AND REMEDY AGAINST WATER IN FUEL

As mentioned above, some gas stations supply fuel with

excessive than specified water. In the conventional IDI

engine, excessive water in the fuel only causes dropping

engine power or engine hunting. However, fuel system in

the DI engine consists of precise components so water in

the fuel can cause malfunctions of HP pump due to poor

lubrication of pump caused by poor coating film during high

speed pumping and bacterization (under long period parking).

To prevent problems can be caused by excessive water in

fuel, water separator is installed inside of fuel filter. When

fuel is passing filter, water that has relatively bigger specific

gravity is accumulated on the bottom of the filter.

SYSTEM SUPPLEMENT AGAINST PARAFFIN SEPARATION.

In case of Diesel fuel, paraffin, one of the elements, can be separated from fuel during winter and then can stick on

the fuel filter blocking fuel flow and causing difficult starting finally. Oil companies supply summer fuel and winter

fuel by differentiating mixing ratio of kerosene and other elements by region and season. However, above phenomenon

can be happened if stations have poor facilities or sell improper fuel for the season.

In case of DI engine, purity of fuel is very important factor to keep internal preciseness of HP pump and injector.

Accordingly, more dense mesh than conventional fuel filter is used. To prevent fuel filter internal clogging due to

paraffin separation, SYMC is using fuel line that high pressure and temperature fuel injected by injector returns

through fuel filter to have an effect of built-in heater (see fuel system).

DI Engine and Its Expected Problems and Remedies Can be Caused

by Water in Fuel

Y220_0A041

If water in the separator on the fuel filter exceeds a certain level, it will be supplied to HP pump with fuel, so the

engine ECU turns on warning light ( ) on the meter cluster and buzzer if water level is higher than a certain level.

Due to engine layout, a customer cannot easily drain water from fuel filter directly, so if a customer checks in to

change engine oil, be sure to perform water drain from fuel filter. (See fuel system for details.)

DI0A-8

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DI ENG SM - 2004.4

Front view

Rear view

Y220_0A001

STRUCTURE

1. TVD (Torsional Vibration Damper)

2. Air conditioner compressor

3. Power steering pump pulley

4. Idle pulley

5. Water pump pulley

6. Alternator

7. Cooling fan pulley & viscos clutch

8. Aut tensioner pulley

9. Auto tensioner

10. Poly-groove belt

11. Cam position sensor

12. Drive plate (M/T: DMF)

13. Oil filter housing

14. Vacuum pump

15. Crank position sensor

16. EGR valve

17. Power steering pump

18. EGR center pipe

DI0A-9

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DI ENG SM - 2004.4

Top view

Y220_0A002

19. Cylinder head cover

20. Intake manifold

21. Water outlet port

22. Common rail

23. Fuel pressure sensor

24. Fuel pipe

25. Injector

26. Fuel return line

27. Oil filler cap

28. Glow plug

29. Booster pressure sensor

30. Oil separator

31. Oil dipstic

32. EGR center pipe

DI0A-10

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DI ENG SM - 2004.4

Right side view

Left side view

Y220_0A003

33. Cylinder head

34. Cylinder block

35. Oil pan

36. Drain plug

37. Turbocharger

38. EGR - RH pipe

39. Oil separator

40. Oil dipstic

41. HP pump

42. Turbocharger vacuum modulator

43. EGR valve vacuum modulator

44. EGR valve

45. Exhaust manifold

DI0A-11

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GENERAL INFORMATION

DI ENG SM - 2004.4

HFM sensor/intake air

temperature sensor Pre heating time relay Main relay

ECU/barometric sensor Cam position sensor Fuel filter

(water detection sensor) Accelerator pedal sensor

ECU RELATED COMPONENTS

ENGINE CONTROLS

Y220_0A004

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