Injection tren for whitening

Typical normal-service engine valve-train components may be too lightweight for operating at high revolutions per minute (RPM), leading to valve float. [5] This occurs when the action of the valve no longer completely opens or closes, such as when the valve spring force is insufficient to close the valve (it does not fully rest on its seat even though the cam would allow the valve to close) causing a loss of control of the valvetrain, as well as a drop in power output. [6] Valve float will damage the valvetrain over time, and could cause the valve to be damaged as it is still partially open while the piston comes to the top of its stroke. [7] Upgrading to high pressure valve springs could allow higher valvetrain speeds, but this would also overload the valvetrain components and cause excessive and costly wear. [8]

Injection tren for whitening

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