While many folks view diesel engines as indestructible, they do still need maintenance. Oil changes, fuel filter replacement, and cleaning or changing the air filter are all important items when it ...

One of the biggest hassles with a solid (mechanical tappet) cam is the need to regularly readjust valve lash, a task usually associated with an aggravating hot oil bath. The best method of setting ...

At the end of the day, an internal combustion engine is just an air pump. Proper airflow in and out of the engine is thus critical to efficiency and power. The valves atop (sometimes on the side) of ...

It's a skill that every hot rodder should know by heart. It can also be one of the more confusing aspects of engine assembly. We're talking about setting valves. In this story, we'll show you a very ...

A clear walkthrough of how to set valve lash on a diesel engine, covering measurements, adjustments, and proper sequencing. The video focuses on precision and correct maintenance procedure. What part ...

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.