Technician A says a piston usually has a direction identifying notch that faces the rear of the engine. Technician B says a piston exhibits more wear on its major thrust side. Who is right?
A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question

Quizplus · Accepted Answer

Technician B is correct because pistons typically exhibit more wear on the major thrust side, which is the side that experiences the most force during operation, especially in engines with a significant side load, like in inline configurations. Technician A's statement is incorrect; the direction identifying notch or mark on a piston usually faces the front of the engine or towards a specific point defined by the engine manufacturer, not necessarily the rear.

Technician a Says a Piston Usually Has a Direction Identifying