CAMSHAFT [SKYACTIV-G 1.3, SKYACTIV-G 1.5]

id0110q3001400

Purpose, Function

• 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.

Construction

• The camshaft is located on the cylinder head.

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• The intake camshaft is a five-bearing type and the exhaust camshaft is a six-bearing type.

• The camshaft thrust force is suppressed by the No.1 journal.

• The camshaft has the following parts shown in the figure.

Without coolant control valve (4-1 exhaust system)

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Without coolant control valve (4-2-1 exhaust system), with coolant control valve

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Valve timing

Without coolant control valve (4-1 exhaust system)

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Item

Specification

Valve timing

IN

Open

(°)

BTDC 43—ATDC 8

Close

(°)

ABDC 31—ABDC 82

EX

Open

(°)

BBDC 49

Close

(°)

ATDC 5

Item	Specification
Valve timing	IN	Open	(°)	BTDC 43—ATDC 8
Close	(°)	ABDC 31—ABDC 82
EX	Open	(°)	BBDC 49
Close	(°)	ATDC 5

Without coolant control valve (4-2-1 exhaust system), with coolant control valve

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Item

Specification

Valve timing

IN

Open

(°)

BTDC 38—ATDC 36

Close

(°)

ABDC 36—ABDC 110

EX

Open

(°)

Without coolant control valve

•  BBDC 59—BBDC 14

With coolant control valve

•  BBDC 50—BBDC 14

Close

(°)

Without coolant control valve

•  ATDC 5—ATDC 50

With coolant control valve

•  ATDC 14—ATDC 50 (R.H.D)

•  ATDC 5—ATDC 59 (L.H.D)