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0000-00
Right side view
Left side view
Rear oxygen sensor connector
Front oxygen sensor connector
Exhaust manifoldHeat protector
Front oxygen sensor
WCC complete
Crankshaft pulley
Oil pan drain plug
Rear oxygen sensor
Coolant outlet port
Injector assembly
Fuel rail
T-MAP sensor Purge control solenoid valve
Electronic throttle body
VIS solenoid valve
Oil dipstick gauge
Oil filter assembly
Thermostat assembly
Oil pressure sensor
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Name Size Quantity Tightening torque
Oil pan bolt M6 X 1.0 X 20 16
Oil pan bolt M6 X 1.0 X 35 4
Oil pan bolt M6 X 1.0 X 85 2
Oil dipstick gauge bolt M6 X 1.0 X 16 1
Camshaft cap M6 X 1.0 X 30 20
Main gallery screw bolt - 1
Main bearing cap bolt - 10
Cylinder head bolt M12X1.75X102 10
Cylinder head TGCC side bolt M8 X 1.25 X 30 4
Cylinder head front cover bolt M6 X 1.0 X 25 8
Cylinder head cover bolt M6 X 1.0 X 30 20
Crankshaft center bolt M18 X 1.5 X 50 1
Flywheel bolt M10 X 1.0 X 22 8
Connecting rod bolt M9 X 1.0 X 52 8 40 + 5 Nm
Cam Cap bolt (#1) M6 X 1.0 X 35 4
Cam Cap bolt (#2~5) M6 X 1.0 X 30 16
Solenoid valve bolt M5 X 0.8 X 22 1
Intake manifold bolt M8 X 1.25 X 32 5
2. TIGHTENING TORQUE
Name Size Quantity Tightening torque
Heater core screw bolt - 1
Ladder frame bolt M8 X 1.25 X 20 7
TGCC M6 X 1.0 X 25 10
Oil drain plug - 1
Oil pan bolt M6 X 1.0 X 20 16
Oil pan bolt M6 X 1.0 X 35 4
Oil pan bolt M6 X 1.0 X 85 2
Oil dipstick gauge bolt M6 X 1.0 X 16 1
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1337-04
With HPS (Hydraulic Power Steering) With ESP (Electric Power Steering)
Length of belt : 1913mm Length of belt : 1740mm
1. Crankshaft pulley
2. Air conditioner compressor
3. Water pump
4. Alternator
5. Tension pulley
6. Power steering pump pulley
7. Idler pulley
1) Drive Belt
Overview
There are two types of belt system; EPS (Electric Power Steering) and HPS (Hydraulic Power Steering).
In the vehicle with ESP, instead of power steering pulley, the idle pulley is installed on the engine.
The belt system is a single belt drive system which uses single V-belt with 6 grooves. This design
provides the long life span and minimizes the belt slip and noise.
Components
With idle pulley instead of power
steering pump pulley With power steering pump pulley
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1337-04
3) Crankshaft Pulley (CRS)
The strut type tensioner automatically adjusts the belt tension to provide the reliability and durability for
the system. And, the belt tension is decreased to minimize the friction loss and improve the belt
operating noise.Overview
Location
Crankshaft pulley (CRS)
Timing mark
Page 454 of 1336

1311-01
The drive chain is single chain drive system with simple design and variable performance, and it utilizes
the hydraulic tensioner to reduce the wave impact generated by the chain. The silent chain provides the
silence during the operation. To improve NVH, the shoulder bolt has been introduced. Overview
Layout and Components
Hydraulic tensioner
Consists of tensioner housing
plug, spring, check valve, and
operated by hydraulic
pressure and spring in
tensioner
Timing chain
Chain type: Silent chain type
Links: 146 ea
Tensioner rail
Installed between exjaust
camshaft sprocket and
crankshaft sprocket
Crankshaft sprocket
Teeth: 21 ea
Oil pump sprocket
Teeth: 28 ea
Exhaust camshaft
sprocket
Teeth:42 eaIntake camshaft
sprocket
CVVT
Teeth: 42 ea
OCV
Controls the hydraulic circuit
to control the intake cam
sprocket variably
Clamping rail
Installed between intake
camshaft sprocket and
crankshaft sprocket
Mechanical tensioner
Operated by spring in
tensioner
Oil pump chain
Chain type: Silent chain type
Links: 58 ea
Page 455 of 1336
1) Timing Gear Case Cover
Features
Major function: Protecting the chain drive system, minor function: Shielding the chain noise
Timing gear case cover prevents the oil from leaking.
The crankshaft front seal and the engine mounting bracket are installed on the timing gear case
cover. -
-
-
Timing gear case cover
Do not touch the inner lip of crankshaft front seal installed on the timing gear case cover. -
Page 459 of 1336
Clamping rail
Installed between intake
camshaft sprocket and
crankshaft sprocket
5) Chain Rails
The chain rails are used for optimizing the movement of chain drive system. And they also prevent the
chain from contacting each other when the chain is loose, and reduces the chain wear. The chain rail is
normally made of PA (Polyamide nylon), and PA66 and PA46 are used for the chain rails in G20DF
engine. For the tensioner rail, PA46 is used to provide high anti-wear function and high strength since
the load to the rail is huge. Ther is an open area for shoulder bolt hole in the clamping rail. The chain
rails are installed by shoulder bolts.
Tensioner rail
Installed between
exhaust camshaft
sprocket and crankshaft
sprocket
Page 460 of 1336
1130-13
1) Overview
Dual mass flywheel (DMF)
- Manual transaxleDrive plate
- Automatic transaxle
Dual mass flywheel reduces the unbalanced
rotation of crankshaft in manual transaxle
equipped vehicle. The flywheel is installed on the
crankshaft and is engaged to the clutch disc to
transfer the driving torque from the engine to the
powertrain system. Additionally, DMF decreases
the rattling noise in transaxle and the vehicle
vibration by reducing the differences of torque and
rotational speed due to the combustion in engine.The drive plate initially drives the powertrain
system by using the power from the start motor
when starting the engine. The drive plate is
installed on the crankshaft and is engaged to the
torque converter of automatic transaxle to transfer
the driving torque from the engine to the powertrain
system.