194003893 - INTRODUCTION - TAPPETS AND ROCKER SHAFTS

TAPPETS

Specifications

Type

Each valve uses a hydraulic tappet operated by a rocker arm, in turn, moved by the camshaft.The rocker arms are designed to prevent serious damage to the other engine components if the timing belt slips or breaks; in effect, as a result of pre-set fracture lines, the stresses caused through the contact of the valves with the pistons are absorbed.