•  The camshaft is rotated by receiving the rotation force of the crankshaft via the timing chain. The valve is opened and closed according to the cam shape at this time.

•  The camshaft is installed to the cylinder head.

•  The cam has been induction hardened. As a result, resistance to abrasion has been enhanced.

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•  The exhaust camshaft uses three types of cams (normal cam, high lift cam, low lift cam) with different shapes.

•  The normal cam presses the rocker arm (No.1) down, and the high lift cam and low lift cam press the rocker arm (No.2) down. (See HYDRAULIC LASH ADJUSTER, ROCKER ARM [SKYACTIV-D 2.2].)

•  The phase of the low lift cam deviates because the exhaust valve opens two times during 1 cycle. (See INTAKE STROKE EGR USING DOUBLE EXHAUST VALVE ACTUATION SYSTEM (IDEVA) [SKYACTIV-D 2.2].)

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Valve timing		IN	Open	BTDC (°)	9
			Closed	ABDC (°)	36
		EX	Open	BBDC (°)	40 (IDEVA: -276)
			Closed	ATDC (°)	8 (IDEVA: 200)