Under a tree, in a remote corner of the earth, there is a guy adjusting his hydraulic valve lash with the valve cover off and the engine running. Yes, it's true. We've seen it. Proof is that you can ...

Before the implementation of hydraulic lifters to keep the engine's valves in proper working order, regular adjustment was required to maintain the critically necessary clearance in the valvetrain.

Adjusting valve clearances is simple, right? They can be, as long as you follow what Honda has to say about them. If there's one thing Honda says to do when it comes to adjusting those valves, it's to ...

1 Before you get started, check your pushrods for straightness by rolling them on a flat surface, and inspect the tips of the rocker arms for signs of wear or metal burrs, which will mean a short ...

Dear Tom and Ray: I have a 2002 Dodge Ram diesel 2500 two-wheel-drive six-speed manual with 130,000 miles. It's primarily used as a commuter truck, with a little bit of horse and hay hauling. I love ...

The DFplus valves have been established in the market over several generations and are now available in their fourth ...

A single power plant uses hundreds of valves to control almost every aspect of its operation. Valves, in conjunction with a controlling actuator, are used for pollution control, feed water, cooling ...

Aaron, a 27-year automotive technician and lifelong car enthusiast, attended Specs Howard School of Media Arts and learned the fundamentals of digital video and editing, shot composition and writing.

They work in harsh environments, and they get little or no recognition. But their impact on power plant efficiency can be significant. Valves and actuators are critical in almost every aspect of power ...