The design of a pusher of the valve has no adjusting washers. Besides the valve pusher, a rubbing surface of a cam фосфатируется for smoothing of a surface and increase of resistance to an istiraniye. To adjust a klapanny 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).