A connecting rod bearing is being inspected. The bearing shows excessive wear on one side of each bearing half with one worn toward the front of the engine and one worn to the rear. Technician A says that this may be caused by lack of lubrication. Technician B says that this could be caused by a bent connecting rod. Who is correct?

Question

Quizplus · Accepted Answer

A bent connecting rod can cause uneven wear on the bearings as it may not allow the rod to align properly, leading to one side of the bearing being loaded more heavily than the other. Lack of lubrication typically causes uniform wear across the bearing surface.

A Connecting Rod Bearing Is Being Inspected