Engines are incredibly complex. They are made out of thousands of different parts, exposed to high temperatures, and have lots of moving parts. This leaves many potential pain points an engine can ...

The failure is so much worse than the lifters. There is a systemic failure at GM right now where they are ignoring these problems, and have been, since the AFM/DOD system first debuted in 2007. It is ...

I have found that the collapsed lifter situation rarely makes any noise. In my case cylinder #6 just stopped working and the pushrod bent falling out of the lifters way. We stoipped the engine almost ...

From the archives: The beauty of hydraulic lifters is that they self-compensate for valvetrain clearances, doing away with the need for valvetrain adjustment. To celebrate HOT ROD's 75th anniversary, ...

DAYTONA BEACH, Fla. — Those powerful, seemingly unbeatable Hendrick Motorsports cars had major engine problems Wednesday during practice for the Daytona 500. Two-time defending NASCAR champion and ...

Riding on last month's How It Works topic (cams) is this month's topic—lifters. These cylindrically shaped components contact the lobes of the cam to convert the eccentric shape of the lobe into ...