Despite declining sales and revenue in 2025, Harley-Davidson has been the dominant American motorcycle maker for most of its long and illustrious history. Harley has produced a succession of engines ...

Harley-Davidson is a name that needs no introduction. Known for its American roots, plentiful customization options, and having a loyal fanbase, the brand has largely maintained a pretty good track ...

Harley-Davidson introduced the Milwaukee-Eight in 2017. It provides great performance, but there are some reasons as to why ...

I'm planning to buy a 2005 Mercedes-Benz C320 CDI from a friend for £3750. It's done 155,000 miles, has a full service history and is in a very good condition. Would you, please, confirm my thinking ...

Camshafts are simple devices, but important ones. Modern engines can have one or more intake and exhaust valves, and it's the camshaft's job to open valves precisely as the engine runs, supplying the ...

Over two decades after the first modular motor rolled off the assembly plant at FoMoCo, we're still discovering ways to improve "cammer" engines. Two-thousand eleven was a big year for the Blue ...

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.

Do MINI Coopers made in 2001 have a cam belt or a cam chain? I am hearing two different things. I've just bought a 2001 MINI Cooper. I took lots of advice before I bought it, and it has a full service ...

Decades ago (OK, half a century or more), there was a product advertised in many of the performance magazines called the Varicam. The idea was a set of springs attached to a centrifugal device that ...