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3. TIGHTENING TORQUE
Component Size QuantityTightening torque
(Nm)Remark
(Total torque)
Main bearing cap
10Not re-usable
Connecting rod cap
850~80Nm
Crankshaft rear cover
6-
Oil pump
3-
Flywheel
8Not re-usable
Isolation damper center
bolt
1660~720Nm
Not re-usable
Oil pan
18-
2-
2-
2-
2-
HP pump main nut
1-
HP pump mounting
bolt
3-
Cylinder head
1285Nm-
Camshaft cap
16-
4-
Exhaust stud bolt 10
-
Exhaust sprocket bolt
1-
Coolant temperature
sensor1-
Belt auto tensioner
1-
1-
Coolant pump
7-
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Knock sensor2-
Cam position sensor
1 10~14Nm -
T-MAP pressure sensor
1-
Exhaust manifold M8 10
-
Turbocharger M8 3
-
T/C support bracket bolt
1
-
T/C support bracket bolt
M8 1
-
T/C oil supply pipeM6(block side) 1
-
M6(turbo side) 1
-
T/C oil return pipe
(turbo side)2-
(block side)2-
EGR valve
3-
EGR pipe bolt
(Intake side)
2-
EGR pipe bolt
(EGR cooler side)
2-
Oil pressure sensor M24 1 Max. 50Nm -
Component Size
QuantityTightening torque
(Nm)Remark
(Total torque)
Hot water inlet pipe
2-
Alternator
1Lower
1Upper
A/C compressor
4-
A/C bracket
4-
Intake manifold
2-
6-
Oil filter module
6-
1-
2-
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Oil gauge tube1-
Oil filter cap 1
-
Fuel rail
2-
Injector clamp bolt
2-
High pressure pipe
(between HP pump and
fuel rail)M17 1
-
High pressure pipe
(between fuel rail and
injector)M17 4
-
Crank position sensor
1-
Main wiring
5-
Intake duct M8x25 3
-
Power steering pump
3-
Mass balance shaft
(MBU)
6-
Cylinder head front cove
r5-
Timing gear case cover
7-
1-
3-
Cylinder head cover
21-
Component Size
QuantityTightening torque
(Nm)Remark
(Total torque)
Idle pulley/Tensioner
pulley1
-
Glow plug M5 4
-
Vacuum pump
3-
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4. CHECK AND INSPECTION
1) Cylinder
(1) Compression pressure test
Specified value
Compression ratio
16.5 : 1
Test condition
Compression pressureStandard32 bar
Minimum18 bar
Differential limit between cylindersMaximum 3 bar
The compression pressure test is to check the conditions of internal components (piston, piston ring,
intake and exhaust vale, cylinder head gasket). This test provides current engine operating status.
Before cranking the engine, make sure that the test wiring, tools and persons are keeping away from
moving components of engine (e.g., belt and cooling fan).
Park the vehicle on the level ground and apply the parking brake.
Do not allow anybody to be in front of the vehicle. -
-
-
(2) Cylinder pressure leakage test
If the measured value of the compression pressure test is not within the specifications, perform the
cylinder pressure leakage test.Specified value
Perform this test in the sequence of firing order.
Do not test the cylinder pressure leakage with wet type test procedure. (do not
inject the engine oil into the combustion chamber) -
-
Test condition: normal engine operating Specified value
Whole engine below 25%
at valve and cylinder head gasket below 10%
at piston ring below 20%
Page 210 of 1336

5. GUIDELINES ON ENGINE SERVICE
To prevent personal injuries and vehicle damages that can be caused by mistakes during engine and
unit inspection/repair and to secure optimum engine performance and safety after service works, basic
cautions and service work guidelines that can be easily forgotten during engine service works are
described in.
Cautions before service works
For safe and correct works, you must observe the working procedures and instructions in this
manual. And, use the designated tools as follow:
Engine stand / Heavy duty engine jack
To prevent the engine from starting abruptly, do not allow anybody to get in the vehicle while
servicing in engine compartment.
Before work on engine and each electrical equipment, be sure to disconnect battery negative (-)
terminal.
Before service works, be sure to prepare the works by cleaning and aligning work areas.
Do not allow the foreign material get into the fuel injection system.
When removing the engine, use only the safety hook on engine and engine hanger. Do not support
the bottom of oil pan with a jack.
Engine and accessories
-
-
-
-
-
-
Completely drain the engine oil, coolant and fuel from engine before removal.
Before disassembling/assembling the engine components, carefully read the working procedures in
this manual.
Make sure to keep the specified tightening torques during installation.
Clean and properly lubricate the parts before reassembly.
Carefully check that there are not any interference while servicing. -
-
-
-
- Engine has a lot of precise portions so tightening torque should be correct during disassembly/assembly
and removal/installation and service work should be done in clean ways during disassembly/assembly.
Maintaining working area clean and cautious service administration is essential element of service works
while working on the engine and each section of the vehicle. So the mechanics should well aware of it.
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Electrical equipment
Electric devices should be handled more carefully.
Currently, the engine has a lot of electric devices. there could be poor engine performance, incomplete
combustion and other abnormal symptoms due to short circuit or poor contact.
Before work on engine and each electrical equipment, be sure to disconnect battery negative (-)
terminal.
When replacing the electric device, use only genuine part and check the conditions of connections
and grounds. Loosened connection or ground make cause a fire and personal injury. -
-Fuel and lubrication system
Do not allow the fluid and engine oil to make contact with the body paintwork and hoses.
If work on the fluid system such as fuel and oil, working area should be well ventilated and smoking
should be prohibited.
Gasket or seal on the fuel/lubrication system should be replaced with new ones and bolts and nuts
should be tightened as specified.
After removal/installation works, be sure to check whether there is leak on the connecting section. -
-
-
-
If fine dust or foreign material enters into DI engine's fuel system, there can be serious damages in HP
pump and injectors. Thus, be sure to plug the inlets of removed fuel line components with cap and
protect removed parts not to be contaminated with dirt. (Refer to cleanness in this manual while working
on DI engine fuel system)
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with EPS (electric power steering)with HPS (hydraulic power steering)
1. BELT SYSTEM
The belt system is a single belt drive system which uses single belt and has components on the oil filter
housing as FEAD (Front End Accessories Drive) type.
Components
HPS EPS
1 Crankshaft pulley (DDU)
2 Auto tensioner
3 Tensioner pulley
4 Vacuum pulley
5 A/C compressor pulley
6 Alternator pulley
7 Water pump pulley
8 NO. 1 idler pulley
9 NO. 2 idler pulley
10 Power steering pump -
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EGR cooler bypass valve
Exhaust gas goes to combustion
chamber without through EGR
cooler in engine cooled, and the
valve is closed by vacuum
pressure.
2. VACUUM PUMP
Vacuum pump generates the vacuum pressure and supplies it to EGR cooler bypass solenoid. This
pump is single vane type and displacement is 210 cc/rev. The lubrication oil is supplied through the hole
in hollow shaft.
Components
Vacuum pump
Pump capacity: 210 cc/rev
Speed: 375 to 3,000 rpm
Lubrication temperature:
Oil: 5W30
Drive type: Driven by exhaust
Camshaft solt
Brake booster