Milwaukee Eight Motor FACTS

Facts about the new Harley motor

Facts about the new Harley motor

Some juicy facts about the 2017 Milwaukee Eight motor, gleaned from an actual parts microfiche…
Our earlier speculation was incorrect; the Milwaukee Eight DOES have 4 valves per cylinder, opened by two pushrod-activated rockers arms (each one has one “finger” per valve) and closed by conventional valve springs. There are two spark plugs per cylinder, over flat-topped pistons. The heads are water cooled. There’s a single chain-driven cam with four lobes (now that seems like a step backwards,but it’s probably cheaper to produce than the 2-cam setup) and a Twin-Cam-like oil pump & camshaft support plate. Even the touring models now use a balance shaft to quell vibrations, though the motor is rubber mounted in the frame.

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