While discussing variable valve timing in diesel engines, technician A says that only dual overhead camshafts (DOHCs) use variable valve timing. Technician B says variable valve timing is not commonly used in diesel engines. Who is correct?

Question

Quizplus · Accepted Answer

Variable valve timing is not as commonly used in diesel engines as it is in gasoline engines, due to the different combustion processes and engine design priorities.

While Discussing Variable Valve Timing in Diesel Engines, Technician a Says