An engine that has enough piston-to-valve clearance to prevent contact is MOST-Likely known as a(n):
A) hybrid engine
B) freewheeling engine
C) standard engine
D) OHC engine

Question

Quizplus · Accepted Answer

A freewheeling engine is designed with enough piston-to-valve clearance to prevent contact between the pistons and valves, even if the timing belt or chain fails. This design helps avoid significant engine damage in such events.

An Engine That Has Enough Piston-To-Valve Clearance to Prevent Contact