Technician A says that hydraulic lifters are adjusted when the valves are open so that the plunger may be put into a centered position. Technician B says that solid lifters require adjustment over time as engine parts wear. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct. Solid lifters do require adjustment over time as engine parts wear. Hydraulic lifters, on the other hand, self-adjust and do not require routine mechanical adjustment. Technician A's statement is not accurate as hydraulic lifters should be adjusted when the valves are closed, not open, to ensure proper preload.

Technician a Says That Hydraulic Lifters Are Adjusted When the Valves