Technician A says low oil pressure may be the result of a shaft fitted with a check ball in which the check ball does not seat properly. Technician B says scoring of the shaft may be the result of a blocked oil delivery passage. Who is correct?

Question

Quizplus · Accepted Answer

Both technicians are partially correct. Low oil pressure can be caused by a check ball not seating properly, which may occur if it is contaminated or if the seating surface is worn or damaged. Scoring of the shaft can also be a result of blocked oil delivery passages, as the lack of lubricant can cause metal-to-metal contact, damaging the shaft. Therefore, both A and B are correct.

Technician a Says Low Oil Pressure May Be the Result