Valve train assembly

A rocker arm assembly for a valve train assembly, the rocker arm assembly comprising:

• a body configured to engage a hydraulic lash adjustment (HLA) assembly;
• a first end having a roller;
• a second end having a socket formed therein, the socket including a hemispherical contact surface;
• and
• an e-foot extending through the socket and coupled to the second end, the e-foot configured to maintain substantially flat contact with a top surface of an engine valve;
• wherein the e-foot includes a hemispherical body and a post extending therefrom, the hemispherical body configured to ride the hemispherical contact surface;
• wherein the post extends through a slot the socket, the slot configured to guide and restrain movement of the e-foot;
• and
• wherein the post is coupled to the body by at least one of staking and a clip.

A cartridge for a valve train carrier of a valve train assembly, the cartridge comprising:

• a main body defining an inner bore configured to receive and house a hydraulic lash adjustment (HLA) assembly;
• and
• a first latch flange extending outwardly from the main body, the first latch flange defining a first latch bore having a first latch assembly configured to selectively engage the HLA assembly,
• wherein the cartridge is sized and shaped for removable insertion into a cartridge cavity formed in an underside of the valve train carrier, the cartridge configured to have a valve train lash set prior to insertion into the cartridge cavity.

A rocker arm assembly for a valve train assembly, the rocker arm assembly comprising:

• a body configured to engage a hydraulic lash adjustment (HLA) assembly, wherein the body includes a pair of lateral flanges connected by a connecting plate;
• a first end having a roller;
• a second end having a socket formed therein, the socket being formed in the connecting plate;
• an e-foot extending through the socket and coupled to the second end, the e-foot configured to maintain substantially flat contact with a top surface of an engine valve;
• and
• a recess formed in the connecting plate configured to mate with a spigot of the HLA assembly, the recess and spigot forming a fulcrum about which the rocker arm assembly can rotate;
• wherein the body further includes a bridge coupled between the lateral flanges opposite the connecting plate.