SSANGYONG NEW ACTYON SPORTS 2012 Service Manual

02-14
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.
1) Crankshaft Pulley (Isolation Damper)
(1) Overview
(2) Sectional drawing
Axial & radial bearing
Sleeve
Hub
Isolation pulley rubber Pulley
Damper rubber
Inertia ring

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(3) Features
Rubber damper: Decrease crankshaft torsion
Improve belt NHV: Reduce unbalance speed to crankshaft due to irregular combustion
Minimize noise: Anti-vibration from crankshaft and belt
Post bonded type rubber damper: Improve durability of rubber damper 1.
2.
3.
4.

02-16
2) Belt Tensioner
(1) Overview
The torque deviation from crankshaft affects the components in belt drive system and the belt
movement. The auto tensioner system is to adjust this deviation automatically.
In D20DTR engine, one of the mechanical tensioner, pivot damped tensioner is used to keep the
damping force, system reliability and durability. The single belt drive system needs to use the
automatic belt tensioning device to transfer the power to pulleys effectively. To get this, the
tensioner uses the spring and damping unit.
(2) Location
Belt tensioner

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Brake booster and naster
cylinderVacuum pump
Pump capacity: 210 cc/rev
Camshaft speed: 375 to 3,000 rpm
Lubrication temperature: -40 to
155°C
Oil: 5W30
Drive type: Driven by exhaust
Camshaft sprocket
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 ▶
EGR cooler bypass valve
This valve is controlled by ECU.
When the engine is cooled, the
exhaust gas goes to combustion
chamber without passing
through EGR cooler because the
valve is closed by vacuum
pressure.

02-18
1) Location
2) Operation
The vacuum pump is engaged to the exhaust camshaft.
Connection between vacuum
pump and exhaust camshaft
Oil supply and driving
Vacuum pumpExhaust camshaft

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Front mounting insulator (Left side)
Location InsulatorFront mounting insulator (Right side)
Location Insulator
3. ENGINE MOUNTING
D20DTR engine uses 3-point mounting type that supports the engine and transmission
simultaneously.
Components ▶
Rear mounting insulator
2WD 4WD
A/T M/T A/T M/T

02-20
1) Functions
Appearance Type and function
Front mounting insulator (Right side) Type: Rubber mounting
Function: Supports the torque reaction
Front mounting insulator (Left side) Type: Rubber mounting
Function: Supports the torque reaction
Rear mounting insulato Type: Rubber mounting
Function: Supports the powertrain rod

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Intake manifold
4. INTAKE/EXHAUST MANIFOLD
1) Intake Manifold
Intake manifold is installed on the cylinder head with 8 bolts. The variable swirl valve is introduced
to improve the EGR gas mixture and turbulence in combustion chamber and to decrease the
exhaust gas.
2) Exhaust Manifold
Exhaust manifold is installed on the cylinder head with 10 stud bolts and nuts. EGR port is integrated
in cylinder head.Components ▶
Components ▶For detailes, refer to Chapter "Intake System". *
Exhaust manifold
For detailes, refer to Chapter "Exhaust System". *

02-22
Rear view
5. CYLINDER HEAD COVER AND OIL SEPARATOR
The cylinder head cover is made by high strength plastic to reduce the weight. The multi twist type
oil separator improves the oil consumption.
Components ▶
1) Cylinder Head Cover
Front view
Cylinder head cover

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2) Oil Separator
Oil separator separates the particle in blow-by gas to minimize the engine oil consumption and
reduces the inflow oil from intake system into the combustion chamber. The separated oil returns
to oil pan through cylinder head.
Oil separator
Blow-by outlet hose
(1) Overview
(2) Layout