Valve springs are being discussed. Technician A says you should discard a 2" spring that is 1/16" out of square. Technician B says out-of-square springs can cause uneven valve guide wear. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct that out-of-square springs can cause uneven valve guide wear. Technician A's statement about discarding a 2" spring that is 1/16" out of square is not necessarily true without more context about the specific application and manufacturer's specifications. It could be within acceptable limits, or it could be too far out of tolerance.

Valve Springs Are Being Discussed