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carbonetic triple with qm release bearing. issue

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Old May 26, 2012 | 03:24 PM
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carbonetic triple with qm release bearing. issue

Hey guys. Im having issues with my clutch setup. The clutch has got less than 2,500 miles on it and it was properly broken in. I've also got braided clutch lines. I purchased all the parts brand new.
So my problem is clutch disengagement. When the clutch is cold, it would begin to engage about 3/4" from the floor. When its warmed up (procedure from carbonetics on how to warm it up) it will begin to engage right off the floor. Also, when its warm and i try to launch, the car will lunge forward so i know the clutch is dragging. I also have high rpm shifting problems. I can shift fine <7k rpm with nlts, but after that its difficult. I've tried adjusting and bleeding it multiple times. Driving around on the streets is fine. The pedal feels solid through the whole stroke.
Im finally fed up with trying to solve it and decided to seek help here. I've gone to the shop that installed it and they couldn't find the problem as well. Maybe someone whose got the same setup can help me out. TIA

-Jesse

Last edited by jessmanEVO; May 28, 2012 at 01:00 PM.
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Old May 26, 2012 | 05:34 PM
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Just to confirm you set the clutch pedal free play to the minimum possible. This is the adjustment on the pedal under the dash. It has to be set to the minimum free play possible to get the most possible movement of the clutch. If its engaging right off the floor when warm that is not enough room for the clutch plates to settle without dragging (as you have seen). It should be engaging at about 2-3" off the floor when warm. I have the twin disk and this is the case with mine.

Go over the entire system from the pedal to the push-pull conversion bar and make sure everything is adjusted right. You might have to do it yourself if the shop isn't being helpful. You can download most of the information here. http://www.carbonetic.net/tech/index.html

Hope it helps

P.S. Also by free play I am referring to as soon as you start depressing the pedal it starts to move the clutch so there is no "wiggle" on the clutch pedal, be careful not to go past zero free play or the clutch will not be engaging fully. You'll be able to feel when your close and this is most likely the adjustment your missing from my reading of your post. Just for reference mine is adjusted almost to the end of the adjustment bolt so it can go pretty far.

Last edited by akeric; May 26, 2012 at 05:36 PM.
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Old May 26, 2012 | 09:07 PM
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I am quite familiar with carbonetics clutches. I have been running mine for two year trouble free and it was used when I got it. your problems sounds like one of the floater plates cracked. pretty common problem with them.

I completely disagree with warming the clutch up and have stated this in several carbonetics threads. all it does is overheat the steal plates and cause problems. the carbon can withstand 2000c. the metal plates will warp at 700c. no need the warm the clutch up. grabs awesome cold.
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Old May 28, 2012 | 01:07 PM
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Originally Posted by 94AWDcoupe
I am quite familiar with carbonetics clutches. I have been running mine for two year trouble free and it was used when I got it. your problems sounds like one of the floater plates cracked. pretty common problem with them.

I completely disagree with warming the clutch up and have stated this in several carbonetics threads. all it does is overheat the steal plates and cause problems. the carbon can withstand 2000c. the metal plates will warp at 700c. no need the warm the clutch up. grabs awesome cold.
I don't think anything is broken inside the clutch because everything is fine driving on the streets. Im only experiencing it when the clutch is hot and shifting above 7k rpm.
A friend of mine has also got the same clutch and he recently rebuilt his. He was noticing a "crunch" in his clutch pedal and later found out that he had a cracked floated plate. I am not experiencing this.
Bump for more experienced inputs!!
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Old May 29, 2012 | 11:48 AM
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I have a vibration from my brake pedal when the brakes get hot. there is no vibration during normal everyday use and the rotors stay cool. this is because metal can warp with change in temperature.

you steel plates are doing the same thing. takes more pedal travel to properly disengage the heated/warped plates. and your are prematurely wearing out the carbon plates by running them against warped steel plates
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Old May 29, 2012 | 02:40 PM
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Thanks 94awdcoupe but my problem only occurs at high rpms, hot or cold.

Last edited by jessmanEVO; May 29, 2012 at 02:44 PM.
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Old May 29, 2012 | 10:28 PM
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So my problem is clutch disengagement. When the clutch is cold, it would begin to engage about 3/4" from the floor. When its warmed up (procedure from carbonetics on how to warm it up) it will begin to engage right off the floor

I was referring to this statement. I can only help when you describe your problem correctly. you keep changing your symptoms with hopes you dont have a clutch problem.

sorry but my diagnosis is very correct. only thing that makes the engagement point change is heat affecting the clutch plates or floaters. since the carbon plates dont have a chance in hell of warping with heat it clearly leaves just the metal plates.

this problem is not just with carboneics clutches. I have seen it many times with other brands and style clutches.

Last edited by 94AWDcoupe; May 29, 2012 at 10:30 PM.
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Old May 31, 2012 | 08:33 AM
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i have the carbonetics tripple and will never look at another clutch. it was installed before winter and i was supprised every morning at how well it grabbed without "warming the clutch". i havent done any hight rpm shifts or launches as i need a retune.

but to set your clutch i have read about putting it in 1st with the car off and clutch not pushed. have someone push on the car while you slowly push the pedal, once the car moves then you know where the clutch disengages and you can set it from there and adjust the pedal stop.

Last edited by evoxsi; May 31, 2012 at 08:38 AM. Reason: im an idiot
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Old May 31, 2012 | 10:40 AM
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Originally Posted by evoxsi
i have the carbonetics tripple and will never look at another clutch. it was installed before winter and i was supprised every morning at how well it grabbed without "warming the clutch". i havent done any hight rpm shifts or launches as i need a retune.

but to set your clutch i have read about putting it in 1st with the car off and clutch not pushed. have someone push on the car while you slowly push the pedal, once the car moves then you know where the clutch disengages and you can set it from there and adjust the pedal stop.
Is that the method you used to set your clutch stop? Also, how far from the clutch stop is the clutch engaging?
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Old May 31, 2012 | 11:41 AM
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I have one with about 2000 miles on it that I am parting out if you need any parts let me know
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