Abstract: An apparatus, method, and/or system is provided for conducting an engine shutdown in a circumstance of a runaway engine event. In a condition where an uncontrolled fuel source is present in the ambient air, there may be a risk of a runaway engine condition in an internal combustion engine. Air taken into an intake system of the engine may include an undesired or uncontrolled combustible component. The method, apparatus, and/or system includes steps, control systems, devices, and mechanisms to prevent opening of at least one intake valve or exhaust valve of at least one cylinder of the engine to stop combustion in the chamber, in response to a condition indicating a possible runaway engine event. The indicator may include an engine overspeed condition, or presence of the combustible component in the intake air.

Abstract: A valve spring retainer for an internal combustion engine includes a body having a lower portion and an upper portion. The lower portion defines a radial flange and a first opening extending axially therethrough. The upper portion includes a first wall and a re-entrant lip. The first wall extends at least partially axially away from an outer perimeter edge of the radial flange. Together, the first wall and the radial flange define an open reservoir for receiving and retaining oil therein. The re-entrant lip extends from an outer end of the first wall at least partially radially inward toward a central axis of the first opening. The re-entrant lip extends over a portion of the reservoir defined by the first wall and the radial flange.

Abstract: A valve spring retainer for an internal combustion engine includes a body having a lower portion and an upper portion. The lower portion defines a radial flange and a first opening extending axially therethrough. The upper portion includes a first wall and a re-entrant lip. The first wall extends at least partially axially away from an outer perimeter edge of the radial flange. Together, the first wall and the radial flange define an open reservoir for receiving and retaining oil therein. The re-entrant lip extends from an outer end of the first wall at least partially radially inward toward a central axis of the first opening. The re-entrant lip extends over a portion of the reservoir defined by the first wall and the radial flange.

Abstract: Systems, devices, and methods are disclosed for clamping an exhaust manifold to a cylinder head with at least one clamp that is configured to allow thermal expansion and movement of the exhaust manifold while preventing exhaust leaks through the exhaust manifold and cylinder head connection.

Abstract: Systems, devices, and methods are disclosed for supporting one or more camshafts by the engine block in overhead arrangement relative to the cylinder heads and valve train.

Abstract: Systems, devices, and methods are disclosed for clamping an exhaust manifold to a cylinder head with at least one clamp that is configured to allow thermal expansion and movement of the exhaust manifold while preventing exhaust leaks through the exhaust manifold and cylinder head connection.

Abstract: Systems, devices, and methods are disclosed for supporting one or more camshafts by the engine block in overhead arrangement relative to the cylinder heads and valve train.