Last month's "How It Works" story gave you the basics of the four-stroke cycle, describing the motion of the intake and exhaust valves in relation to the piston moving up and down in the cylinder.

Variable valve timing enables these different behaviours by changing how the intake and exhaust valves work at different engine speeds. Thus, it helps optimise the engine’s performance, whilst also ...

Brian Cooley is CNET's Editor at large and has been with the brand since 1995. He currently focuses on electrification of vehicles but also follows the big trends in smart home, digital healthcare, 5G ...

Suck. Squeeze. Bang. Blow. There’s no joke to be made there—you’re looking at the DNA of the four-stroke internal combustion engine, virtually unchanged since Dr. Nikolaus Otto first built it in ...

Cylinder head valves normally will not just bend unless the engine has experienced some sort of trauma. Bent valves can occur as the by-product of a timing belt failure, as the valves strike the ...

In case you missed it, the automotive industry has been on a steady trajectory of internal combustion engine (ICE) downsizing for years. Battery-powered electric vehicles may capture most of the ...