The design of a pusher of the valve has no adjusting washers. Besides a valve pusher, the rubbing surface of a cam fosfatirutsya for smoothing of a surface and increase in resistance to attrition. To adjust a valvate gap, it is necessary to replace a valve pusher. There are 35 standard sizes of pushers of the valve depending on thickness. For distinction of pushers they have the engraved marking (3 figures)
(fig. 2.28).