Question

Hot spots found on the cylinder bore near the exhaust valve indicate that the engine has experienced some localized overheating. Technician A says that the hot spots are signs of cylinder bore damage and should be repaired through a resizing process. Technician B says the hot spots are nothing more than carbon stains left by the vaporization of oil on the cylinder bore. Who is correct?

A) Technician A



B) Technician B



C) Both Technician A and B



D) Neither Technician A nor B

Answer 1

D) Neither Technician A nor B

Step-by-step explanation:

Hot spots on cylinders is an indication of localised heating of the engine, the continuous heating of the engine may cause spots on the cylinder. they are not a sign of bore damage or carbon stains.