Technician A says that basket-type coil springs are installed with the tighter part of the coil against the head. Technician B says that grinding a valve seat will decrease the installed height of the valve spring. Who is right?

Question

Quizplus · Accepted Answer

Technician A is correct because basket-type coil springs, which are conical or have varying coil spacing, are indeed installed with the tighter or closer wound part of the coil against the head to ensure proper operation and seating. Technician B is incorrect because grinding a valve seat typically affects the valve margin and seat width, not the installed height of the valve spring. The installed height of the valve spring is determined by the position of the valve spring seat and the valve spring retainer, not the valve seat condition.

Technician a Says That Basket-Type Coil Springs Are Installed with the Tighter