Technician A says that polished cylinder walls will cause low power and more blowby. Technician B says cylinder walls with more than 90% remaining crosshatch have less than 50% remaining service life. Who is correct?

Question

Quizplus · Accepted Answer

Polished cylinder walls can lead to poor sealing of piston rings, resulting in low power and increased blowby. Technician B's statement is incorrect; crosshatch patterns are crucial for oil retention and ring seating, and having more than 90% remaining crosshatch indicates good condition, not reduced service life.

Technician a Says That Polished Cylinder Walls Will Cause Low