Abstract: Methods and systems are provided for mounting a fuel pump to a cylinder head of an engine. In one example, a mounting system may comprise: an engine fuel pump mounted directly to a cylinder head cap positioned underneath a cam cover, the cap including a raised portion having a first and a second cap mounting boss, and a main opening for directly receiving the fuel pump, wherein each of the first and second cap mounting bosses couple to a flange formed on a bottom portion of the fuel pump. In this way, the fuel pump may be directly mounted to the cylinder head cap to simplify assembly, minimize fuel leakage and reduce pump vibration.

Abstract: An exemplary fastening system includes, among other things, a first component providing a first aperture, a second component providing a second aperture, and a fastener. The fastener has a shaft extending from a head. The shaft extends along an axis through the first aperture and the second aperture to clamp the first component axially between the head and the second component. A compressible sleeve distributed about the shaft is compressed radially by the first component. An exemplary fastening method includes moving a shaft of a fastener along an axis through an first aperture in a first component into a second aperture in a second component, and compressing at least a portion of compressible sleeve radially with the first component. The compressible sleeve is distributed about the shaft. The method further includes clamping the first component between a head of the fastener and the second component.

Abstract: Methods and systems are provided for mounting a fuel pump to a cylinder head of an engine. In one example, a mounting system may comprise: an engine fuel pump mounted directly to a cylinder head cap positioned underneath a cam cover, the cap including a raised portion having a first and a second cap mounting boss, and a main opening for directly receiving the fuel pump, wherein each of the first and second cap mounting bosses couple to a flange formed on a bottom portion of the fuel pump. In this way, the fuel pump may be directly mounted to the cylinder head cap to simplify assembly, minimize fuel leakage and reduce pump vibration.

Abstract: An exemplary fastening system includes, among other things, a first component providing a first aperture, a second component providing a second aperture, and a fastener. The fastener has a shaft extending from a head. The shaft extends along an axis through the first aperture and the second aperture to clamp the first component axially between the head and the second component. A compressible sleeve distributed about the shaft is compressed radially by the first component. An exemplary fastening method includes moving a shaft of a fastener along an axis through an first aperture in a first component into a second aperture in a second component, and compressing at least a portion of compressible sleeve radially with the first component. The compressible sleeve is distributed about the shaft. The method further includes clamping the first component between a head of the fastener and the second component.

Abstract: An oil separator in a positive crankcase ventilation (PCV) system is described herein. The oil separator includes an oil separation conduit in fluidic communication with an intake conduit and an oil reservoir and an entry conduit including an entry conduit orifice arranged at an angle of between 80 and 100 degrees with regard to the oil separation conduit, the entry conduit orifice opening into the separation conduit at a point between the separation conduit outlet and the separation conduit inlet.

Abstract: An oil separator in a positive crankcase ventilation (PCV) system is described herein. The oil separator includes an oil separation conduit in fluidic communication with an intake conduit and an oil reservoir and an entry conduit including an entry conduit orifice arranged at an angle of between 80 and 100 degrees with regard to the oil separation conduit, the entry conduit orifice opening into the separation conduit at a point between the separation conduit outlet and the separation conduit inlet.