Movement of the piston creates a pressure drop across this window. In fact, the relationship between piston movement and valve movement can affect net cylinder filling (volumetric efficiency or VE).

This collection of cam-related phenomena is intended to take you beyond the degree-it-in and set-the-valve-lash plateau. In concert with what you may already know about camshaft types, selection, and ...

Piston slap can create a knocking noise from your engine that seems very concerning at first. But you should listen to expert ...