Clutch done to death, or "don't try this at home"
04-21-2008, 09:35 AM
#1
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Clutch done to death, or "don't try this at home"
Last weekend at the Miller Motorsports Park driving event a friend was co-driving my car and missed a 2nd-3rd shift and did a 2nd-1st shift instead. Fortunately he caught it quickly enough that my engine didn't over-rev (We looked to see if one had been recorded and one wasn't) but needless to say it trashed the clutch.
Looking below you can see that my clutch was in really good shape for having 35k on the odometer - plenty of friction material left, but the missed shift literally ripped all the friction material off the motor side of the clutch disk...
<img src="http://www.stahmann-motorsports.com/Audi/2008/Clutch/IMG_3287%20(Medium).JPG">
Side A - Plenty of friction material left
<img src="http://www.stahmann-motorsports.com/Audi/2008/Clutch/IMG_3290%20(Medium).JPG">
Side B - Friction material literally ripped off the disc.
<img src="http://www.stahmann-motorsports.com/Audi/2008/Clutch/IMG_3291%20(Medium).JPG">
Close up of Side B
<img src="http://www.stahmann-motorsports.com/Audi/2008/Clutch/IMG_3296%20(Medium).JPG">
Flywheel - Nice coloring from high temp, but the two pieces of the flywheel can freely move. Normally the pieces don't move freely.
<img src="http://www.stahmann-motorsports.com/Audi/2008/Clutch/IMG_3286%20(Medium).JPG">
I was able to drive the car home from the event after this happened, although the clutch was very 'chattery' on engagement.
Looking below you can see that my clutch was in really good shape for having 35k on the odometer - plenty of friction material left, but the missed shift literally ripped all the friction material off the motor side of the clutch disk...
<img src="http://www.stahmann-motorsports.com/Audi/2008/Clutch/IMG_3287%20(Medium).JPG">
Side A - Plenty of friction material left
<img src="http://www.stahmann-motorsports.com/Audi/2008/Clutch/IMG_3290%20(Medium).JPG">
Side B - Friction material literally ripped off the disc.
<img src="http://www.stahmann-motorsports.com/Audi/2008/Clutch/IMG_3291%20(Medium).JPG">
Close up of Side B
<img src="http://www.stahmann-motorsports.com/Audi/2008/Clutch/IMG_3296%20(Medium).JPG">
Flywheel - Nice coloring from high temp, but the two pieces of the flywheel can freely move. Normally the pieces don't move freely.
<img src="http://www.stahmann-motorsports.com/Audi/2008/Clutch/IMG_3286%20(Medium).JPG">
I was able to drive the car home from the event after this happened, although the clutch was very 'chattery' on engagement.
04-21-2008, 10:15 AM
#3
How does one manage that mistake?
I have trouble getting my car into first at anything over about 5mph, I can't even imagine trying it while accelerating. On top of that, I think that 2-3 shift is the easiest one aside from 3-4 since the box seems to naturally throw the lever back to center as soon as it comes out of 2. My B5 didn' do that nearly as eagerly as the B7 does.
Glad it was at least caught before the over rev!
Glad it was at least caught before the over rev!
