For many years camshaft technology was limited not by any lack of knowledge on the part of lobe profilers but by valvespring technology that just wasn't up to stabilizing aggressive lobe designs. But ...

Those wound-up pieces of high-tensile steel under your rocker arms work so hard closing your valves over millions of cycles that they could probably use a replacement right about now. We're talking ...

(MENAFN- GetNews) You are relying on a simple plastic valve to control water flow, but have you ever wondered how it is made? If a valve fails due to poor manufacturing, it can cause major leaks, ...