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15 February, 07:59

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

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Answers (1)
  1. 15 February, 11:07
    0
    D) Neither Technician A nor B

    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.
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