Patent ID: 6675115
Filing Date: 2004-01-06
Classification: F01L,Y10T

Abstract:
A method of setting a reference datum position of a rocker arm which neutralizes back lash affecting the position of the rocker arm prior to a setting of a predetermined clearance in an engine valve component drive train having a push comprising:moving the rocker arm in a first direction to a zero position at which relative backlash between the rocker arm and an engine valve is negligible and the engine valve remains substantially at a first position; moving the rocker arm in a second direction opposite said first direction and eliminating backlash associated with the push rod and rocker arm; rotating an adjustment screw in a first direction to move the rocker arm in the first direction to a third position at which said engine valve is displaced from said first position; and rotating the adjustment screw in a second direction a predetermined amount and displacing said rocker arm in said second direction to eliminate backlash affecting the position of the rocker arm.