VALVE CLEARANCE ADJUSTING MECHANISM OF VALVE ACTUATING APPARATUS

摘要

PROBLEM TO BE SOLVED: To make it possible to arbitrarily position the rotational center axis of a tool for screwing and feeding pivot. SOLUTION: The pivot 21 is provided with a driven gear 24 coaxially and integrally rotatably, and a driving gear 26 having a receiving bore 28 being a fitting part with an adjusting tool 29 is joined. When adjusting the valve clearance, the adjusting tool 29 is operated to screw-feed the pivot 21 by the rotation of the driven gear 26. By changing the form of engagement between the driving gear 26 and driven gear 24 or the position and direction of the driving gear 26, the rotational center of the adjusting tool 29 for screw-feeding the pivot 2 can be arbitrarily set.