ENGINE FEATURES [ZY]

id0100001002a0

Mechanical


Improved engine performance	• A variable valve timing mechanism has been adopted.
Reduced engine weight	• Main parts (cylinder head and cylinder block) are made of aluminum alloy.
Reduced engine noise and vibration	• The cylinder head is made of aluminum alloy. • A silent timing chain has been adopted. • A highly rigid aluminum cylinder block and lower cylinder block have been adopted. • A crankshaft pulley with torsional damper has been adopted. • A pendulum type engine mount has been adopted.
Improved serviceability	• A serpentine type drive belt has been adopted. • Drive belt tension is adjusted automatically with an auto-tensioner. • A timing chain has been adopted to eliminate the need for its replacement. • An engine front cover with a service hole has been adopted. (for unlocking the chain adjust ratchet and securing the tensioner arm.)

Lubrication System


Reduced weight	• An aluminum alloy oil pump cover has been adopted. • A plastic oil strainer has been adopted.
Improved lubrication and reliability	• A trochoid gear type oil pump has been adopted. • An oil jet valve has been adopted.

Cooling System


Reduced weight and size	• A down-flow type radiator with radiator tanks made of plastic and a core made of aluminum has been adopted. • A built-in type water pump has been adopted.
Reduce engine noise and vibration	• An electric cooling fan has been adopted.

Intake-Air System


Improved engine torque	• Variable intake air system adopted
Improved noise reduction	• Resonance chamber adopted
Improved emission gas purification	• Variable tumble system adopted

Fuel System


Improved serviceability		• Nylon tubes adopted for fuel hoses in the engine compartment and around the fuel tank, and quick release connectors adopted for joints
Reduction of evaporative gas		• Returnless fuel system adopted

Emission System


Improved exhaust gas purification		Exhaust gas recirculation (EGR) system adopted
		Catalytic converter system adopted
		Water-cooling type EGR cooler adopted

Control System


Improved driveability	• Drive-by-wire control adopted • Variable intake air control adopted • Variable valve timing control adopted
Improved exhaust emission performance	• Variable tumble control adopted • Wide-range air/fuel ratio sensor has been adopted for the front HO2S sensor • EGR control adopted
Improved fuel economy	• Variable tumble shutter valve switch adopted • Current sensor adopted
Wiring harness simplification	• CAN adopted

Charging System


Reduced size and system simplification	• A regulatorless generator with built-in power transistor has been adopted.

Ignition System


Improved marketability and durability	• Direct ignition system have been adopted.

Starting System


Improved safety	• A reduction type starter has been adopted.