Technician A says aluminum heads usually have an aluminum shim beneath the valve spring. Technician B says as the valves are removed from the head, they should be kept in order. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct because it is important to keep valves in order as they are removed from the head to ensure they are reinstalled in their original positions, maintaining proper engine function and avoiding potential damage. Aluminum shims beneath valve springs are not a common practice for aluminum heads, making Technician A's statement incorrect.

Technician a Says Aluminum Heads Usually Have an Aluminum Shim