Valve train assembly, comprises a valve rocker arm in connection with cam shaft assembly of the engine via a tappet assembly

摘要

The rocker arm (B) is centre pivoted an mounted on a tappet (4). The tappet is positioned between a roller (R) that is displaces and pushed against a cam (C), and a poppet valve (V) against the valve spring (M). The tappet comprises a rounded engagement head (41) that co-operates with a circular recess on the rocker arm.