Technician A says that valve lash can be adjusted on a cylinder that is at TDC and on the compression stroke. Technician B says that feeler gauges are used when adjusting hydraulic lifters. Who is correct?

Question

Quizplus · Accepted Answer

Technician A is correct because valve lash should be adjusted on a cylinder that is at TDC (Top Dead Center) and on the compression stroke, so that both the valve and lifter are fully closed.

Technician B is incorrect because feeler gauges are typically used when adjusting solid lifters, not hydraulic lifters. Hydraulic lifters are self-adjusting and do not require external adjustment.

Technician a Says That Valve Lash Can Be Adjusted on a Cylinder