Patent ID: 7721694

Claim:
A two-step finger follower rocker arm assembly for variably activating a compression valve in an internal combustion engine, comprising: a) a rocker arm body having a bore; and b) a latch disposed in said bore for selectively latching a slider member to said body to provide a first rocker assembly mode having a first valve lift capability, and for unlatching said slider member from said body to provide a second rocker assembly mode having a second valve lift capability, wherein said latch includes a lock pin disposed in said bore and a plug sealingly disposed in said bore to create a hydraulic chamber between said lock pin and said plug, wherein said bore is provided with at least one formed indentation, and wherein said plug in a pre-inserted condition has an outer diameter that is substantially equal to a diameter of said bore, and wherein said plug in a deformed condition is deformed radially outward relative to said plug in said pre-inserted condition into said at least one formed indentation to anchor said plug in said bore.