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 ...
In this video, a valve lash adjustment is performed on a 1995 GMC Suburban's 5.7L engine while the motor is running to address a persistent ticking noise. The ticking sound is suspected to be caused ...
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.