CAMSHAFT [SKYACTIV-G 2.0]
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2016 – MX-5 – Engine
CAMSHAFT [SKYACTIV-G 2.0]
Purpose, Function
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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
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The camshaft is located on the cylinder head.
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The camshaft has the following parts shown in the figure.
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The intake camshaft is a five-bearing type and the exhaust camshaft is a six-bearing type.
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The camshaft thrust force is suppressed by the No.1 journal.
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Valve timing
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|
Item |
Specification |
|||
|
Valve timing |
IN |
Open |
(°) |
BTDC 42—ATDC 32 |
|
Close |
(°) |
ABDC 36—ABDC 110 |
||
|
EX |
Open |
(°) |
BBDC 56—BBDC 11 |
|
|
Close |
(°) |
ATDC 5—ATDC 50 |
||
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