Technician A says there is no need to lubricate the valve stems upon reassembly. Technician B says intake and exhaust seals are the same materials and shapes. Who is correct?

Question

Quizplus · Accepted Answer

Technician A is incorrect because valve stems need to be lubricated during reassembly. Technician B is also incorrect because intake and exhaust seals are not always the same materials and shapes. Therefore, neither technician is correct.

Technician a Says There Is No Need to Lubricate the Valve