On engines equipped with hydraulic tappets, zero lash at maximum tappet plunger rise can be determined by rotating the pushrod with your fingertips while slowly turning the lash adjusting nut. The ...

Before the implementation of hydraulic lifters to keep the engine's valves in proper working order, regular adjustment was required to maintain the critically necessary clearance in the valvetrain.

There's a lot more to wringing optimum performance from a camshaft, any camshaft, than simply degreeing it in and setting valve lash to manufacturer's specs. If this comes as a surprise to you, sit ...

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 ...