BrainStuff

Why does a manual transmission make a whirring noise?

Jan 9, 2013 · 3 min · 3.0 MB
0:00-3:06

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When manual transmissions are put in reverse, they produce a loud, whirring noise. What's the culprit? Gears. Marshall Brain explains how helical and spur gears work in manual transmissions in this episode.

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