Engine valve actuation system and lifter arm assembly having lifter arm oil spray port for cam-roller lubrication
An engine valve actuation system includes a rotatable camshaft having a cam lobe, and a lifter arm assembly having a lifter arm with a roller in contact with the cam lobe. A bushing is positioned in a pin bore of the lifter arm and journals the lifter arm upon the pin for reciprocation in response t...
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