Cam lift and timing can put the valves dangerously close to the piston. We show you how to check the clearance In all but most the mild engine builds, taking extra time to check piston to valve ...

The inlet and exhaust valve timing of a piston engine plays a large role in engine performance. Many modern automotive engines have some sort of variable valve timing, but the valves are still ...

You've probably read this line a dozen times: "It's never been easier to make horsepower than right now." While that's true, it also means everything else in the engine is now more highly stressed.

Q–With regard to changing the timing belt before it breaks, you frequently refer to an “interference type” engine. Are they all overhead cam engines, those without pushrods? D.P., Chicago A–An ...

Valve timing is the most important factor determining an engine's character. A good illustration of this is provided by the following curious historical fact. In 1947 the Standard Motor Company of ...

The idea of camless automotive engines has been around for a while but so far has been limited to prototypes and hypercars. [Wesley Kagan] has been working on a DIY version for a while, and ...

Inside the front of your engine, there’s a component that’s either a timing belt, or a timing chain. They both serve the same function, but they’re made of different materials. And while belts aren’t ...