Technician A says that improper valve timing can affect cylinder compression. Technician B says that a timing belt that is off by one tooth can affect valve lift. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Improper valve timing can indeed affect cylinder compression because it can cause the valves to open or close at incorrect times, impacting the engine's ability to compress air-fuel mixture properly. However, a timing belt off by one tooth affects timing, not valve lift, which is determined by the camshaft profile.

Technician a Says That Improper Valve Timing Can Affect Cylinder