Technician A says that conventional piston rings wear the bore more than low-tension rings. Technician B says low-tension rings must have less cylinder bore taper than conventional rings. Who is right?

Question

Quizplus · Accepted Answer

Technician B is correct in stating that low-tension rings must have less cylinder bore taper than conventional rings. This is because low-tension rings rely on a tight seal between the ring and the piston groove rather than high tension against the cylinder walls. However, Technician A is incorrect in stating that conventional rings wear the bore more than low-tension rings. Both types of rings can wear the bore if they are not properly installed or maintained.

Technician a Says That Conventional Piston Rings Wear the Bore