The intermediate lever arm is a critical component in the Valvetronic system.  It  moves under the action of the eccentric cam  to shift the finger follower pivot point and modify the valve stroke under the action of the cam shaft. 

The lever arm is a 3" (7.5 cm) long steel bar with stiffening ribs, cut-outs, slots, tabs, and bearing/profile faces. The cross-section envelope of the arm is about 1" by 1". 

• The thinnest wall is less than 1.5 mm thick; the thickest wall is 3 mm thick. 

• The as-cast weight of the lever arm is 50 grams.

• The finished assembly weight with the bearings is 80 grams.