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BMW General Discussion
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Talk about BMWs in general. Post official news, Bangle flames, or anything else related to BMW.
Within the transmission itself, BMW has a specification of 0.004"-0.006" gap between each gear and the shifter rail in the transmission (for reference, a human hair is approximately 0.0035"). This gap allows for the transmission lubricant to acts as a barrier so that the shifter rail and gear are not directly touching, causing premature wearing of the gear (not syncros), shifter rail, or both.
When you make a 0.001" change at the shift knob and maintain pressure (like resting your hand on the shift knob while driving), the required 0.004"-0.006" gap is closed, preventing the lubricant to ride between the gear and shifter rail. Premature wear of the gear or shifter rail may hamper transmission shifting performance, gear engagement, or worse, require rebuilding or replacement of the transmission.
^^Foot on the clutch is bad, not my habit though. Sometimes i like to play with the gear shift while waiting at the light, but since i read this thread i was trying to keep my hand off it at the lights. Good info dudesky.
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Your Ride: 1994 325is, 2000 z3 2.3
I had heard of this before... but I'm not 100% sure I believe.
I always keep both hands on the wheel unless actually moving the shift knob anyways though. one of my first times on the track at a very slow speed coming out of a corner I kept my hand on the shift knob and my instructor grabbed the wheel and yanked it to show me how much less control I have with one hand on the wheel.
Just feeling the power through the shift knob feels so cool though! Unfortunatly I have an auto BMW, but when I had my Talon I had my hand on the shifter at all times, until I met my wife, her thigh was a little more powerful.
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one of my first times on the track at a very slow speed coming out of a corner I kept my hand on the shift knob and my instructor grabbed the wheel and yanked it to show me how much less control I have with one hand on the wheel.
thats an awesome instructor
never been to the track, but just from reading some bmw enthusiest books and watching rally and track racing i noticed that they keep both hands on the wheel and just reach down to shift and then back to the wheel. figured if they do it, i prolly should too