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      02-11-2006, 01:32 PM   #10
shimshimhada
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Quote:
Originally Posted by ACZakka325i
sorry, but what exactly is double cluthing? Is that when you put it into manual, and then from manual to another gear?
You can only do it in a car with manual transmission.

Quote:
Originally Posted by http://en.wikipedia.org/wiki/Double_declutch
The purpose of the double clutch is to match the speed of the rotating parts of the gearbox for the gear you wish to select to the speed of the input shaft being driven by the engine. Once the speeds are matched, the gear will engage smoothly. If the speeds are not matched, the dog teeth on the collar will "crash" or grate as they attempt to fit into the holes on the desired gear. A modern synchromesh gearbox accomplishes this synchronization automatically.
Easiest way to explain it is that you're using the clutch pedal twice for one shift up or down, instead of once.
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