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Old 01-06-2012, 06:31 PM
Keith_J Keith_J is offline
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Audi TDI, VW TDI forum newbie
 
Join Date: Jan 2012
Car: 2k Jetta TDI
Location: Central Texas
Posts: 30
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Time? Took longer to post the images and write this thread than to cut it apart. I have a neurosis of root cause analysis, a condition my former employer instilled in my brain. Part of their total quality management brainwashing.

Plus I have pretty good metalworking tools. And an old 14" abrasive blade which was 9" but is now close to 6". I hate this blade as it makes nasty burrs, my newer blades cut faster without burring.

Too much banter on the failures, not enough root cause analysis. So I lit a candle.

Now, why a DMF? Noise, vibration and harshness. Plus a DMF can be lighter, making the engine feel sprightly. I also have 1:0.658 5th gear which also helps lower interior noise. Here in Texas, we have a few Interstate Highways with 80 MPH speed limits, most of the noise I hear is from wind.

The DSG transmission uses a DMF for similar reasons and also for geartrain longevity. Torsional vibration requires gears to be over-sized. This increases the inertia which slows shifting. Also, more gears in less space. But in the manual transmission on the earlier vehicles (5 speed and lower), the gears are designed for SMFs. Not so in the 6 speed.
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