Valve timing refers to:
A) How long the valves are held open
B) The relationship between cam and crank rotation
C) The relationship between how long a valve is open compared to closed
D) None of these

Question

Quizplus · Accepted Answer

Valve timing is specifically about the relationship between the rotation of the camshaft and the crankshaft, which determines when the engine's valves open and close during the cycle.

Valve Timing Refers To