Valve train retention clip with integrated locking pin anti-rotation feature

A method for retaining a hydraulic lash adjuster and preventing rotation of a coupling pin in a switchable roller finger follower, the method comprising:

• providing a switchable roller finger follower including an inner lever having a first end and a second end, and an outer lever with two outer arms that extend along longitudinal sides of the inner lever and a dome-shaped recess on a bottom surface of the outer lever arranged towards the second end of the inner lever, the inner lever mounted for pivoting movement on the outer lever at the first end of the inner lever by a pivot axle;
• arranging a coupling device on one of the inner lever or the outer lever on an end opposite from the pivot axle, the coupling device includes a coupling pin having a coupling flat, the coupling pin is arranged to move in a longitudinal direction between a locking position, in which the inner lever and the outer lever are connected together for movement at least in an activation direction of a valve, and an unlocked position, in which the inner lever is pivotable relative to the outer lever;
• providing a coupling projection with a coupling surface on the other of the inner lever or the outer lever from the coupling device, the coupling flat of the coupling pin engages with the coupling surface in the locking position;
• and
• arranging a clip on the switchable roller finger follower, the clip including a first leg arranged adjacent to the dome-shaped recess on the bottom surface of the outer lever that includes a retainer for a hydraulic lash adjuster, and a second leg of the clip including an anti-rotation bar that extends laterally across a part of the coupling pin and prevents rotation of the coupling pin.