Valve Spring: Description and Operation

VALVE SPRINGS

DESCRIPTION








There are two interchangeable, floating (spring rotates during operation), valve spring designs. Type A may be identified by the counterclockwise (spring spirals down and to the left) appearance, And Type B may be identified by the clockwise (spring spirals down and to the right) appearance. Both of the valve springs are a bee-hive shaped design but have different specifications (Fig. 18). The springs are seated on a steel washer on the cylinder head with retainers and locks retaining the springs (Fig. 19). The springs are installed with the smaller diameter against spring retainer (Fig. 18).

OPERATION
The valve spring returns the valve against its seat for a positive seal of the combustion chamber.