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- Sep 03, 2018 -

The variable valve timing system has roughly 2 classifications of--vvt-i and VTEC two. The vvt-i can continuously adjust the valve timing, but cannot adjust the valve lift. It works: When the engine from low to high speed conversion, the computer automatically presses the oil into the intake camshaft drive the small turbine in the gear, so that under the action of pressure, the small turbine relative to the gear shell rotation at a certain angle, so that the camshaft in the range of 60 degrees forward or backward rotation,

Thus changing the opening time of the intake door, to achieve continuous adjustment of valve timing.

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