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Old 02-16-2010, 11:50 AM   #31
hasenwerk OP
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Quote:
Originally Posted by GS Addict
It looks like the springs might interfere........
I don't think so.. I will snap a photo tonight of the assembled VW clutch.

Waiting to hear back from my VW clutch builder for a four puck... should be very interesting indeed.
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Old 02-16-2010, 11:51 AM   #32
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Quote:
Originally Posted by chiba
This might sound like a stupid question, but what good is having springs on a clutch disc?

--chiba
In theory, less initial shock on the gearbox and input shaft.
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Old 02-16-2010, 12:10 PM   #33
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Quote:
Originally Posted by dan-c
I don't think the VW clutch could take the power
Or the weight 



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Old 02-16-2010, 12:13 PM   #34
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Quote:
Originally Posted by hasenwerk
In theory, less initial shock on the gearbox and input shaft.
Exactly, but as Anorak pointed out, the input shaft already has a spring loaded shock absorber built into the gearbox.



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Old 02-16-2010, 12:15 PM   #35
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Why use springs on the clutch plate?

Chiba, The springs on the disc (or clutch plate) absorbs or softens the torsional load as the plate is squeezed (or maybe a better description is, locked-up,) as the pressure plate locks the clutch plate to the flywheel.
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Old 02-16-2010, 12:31 PM   #36
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The clutch hub isn't directly connected to the friction disk mounting plate. When the clutch hub rotates, it pushes on the springs, then the springs push on the mounting plate. It works in both directions.

Also there is a thin wafer 'wave' spring, the same size as the friction material, mounted under the friction material. The slight cushion reduces engagement grab and chatter.



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Old 02-16-2010, 03:23 PM   #37
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I was told that the spring are in the clutch disk to smooth out the pulses of the individual cylinders firing.
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Old 02-16-2010, 03:48 PM   #38
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though it may help with the pulses i don't think that is the reason they are in there. every stock clutch i have changed has had them. as said above i think they are in there to lessen the shock on the input shaft and engine, between on/off throttle changes and clutch engagement.

i replaced the clutch in my dodge cummins with an the aftermarket clutch, the one i put in didn't have springs, and does chatter or buck when trying to back a heavy trailer up a hill. but i think that it is due to the half ceramic friction material, not the lack of springs.

jsut my .02

Quote:
Originally Posted by Gradall
I was told that the spring are in the clutch disk to smooth out the pulses of the individual cylinders firing.
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Old 02-16-2010, 04:12 PM   #39
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re:

Quote:
Originally Posted by Gadget Boy
If this doesn't work out, you could get the ceramic clutch that Touratech sells directly from the source in South Africa for about half the price:

http://www.advrider.com/forums/showthread.php?t=335934
GB- FYI- It appears from the photos in the TT website that the Ceramic clutch from (Cytech)Tours for Africa is subtly different from the TT ceramic clutch- I dont have a TT style in my hand to confirm it, but I do have one from Cytech I got a few days ago. And from the picture of the TT they are a little different. Either the Cytech( tours for africa)is a knock off, or more likely, Sachs is making it for Cytech, and are making it a little differently for proprietary reasons. Either way- you might not want to say its the same.

Also the price no longer quite half compared to the TT. The current price is 2800 Rand, which is about $365( at todays exchange rate)+ shipping + exchange rate fees, plus transfer wire fees( all of which Cytech charges you for), which brings it closer to $475 to $500 depending on where you live. Still less than the TT, but higher than originally posted from April 2008 thread.

Here is a photo of the Cytech Ceramic Clutch:



















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Old 02-16-2010, 05:00 PM   #40
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Quote:
Originally Posted by GS Addict
It looks like the springs might interfere........
I think, at least just form everything just sitting on the desk, that it will work. There's just a tad more friction surface showing but I don't think it would be that great of a deal...


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Old 02-16-2010, 05:01 PM   #41
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I am getting a quote for QTY 6 four puck ceramic discs. How this is the OE clutch supposed to be 6.5mm or ????
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Old 02-16-2010, 05:34 PM   #42
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This is awesome.

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Old 02-16-2010, 06:24 PM   #43
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Quote:
Originally Posted by chiba
This might sound like a stupid question, but what good is having springs on a clutch disc?

--chiba
Torque damping
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Old 02-16-2010, 09:06 PM   #44
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I'm wondering how much heavier the sprung disc is over the unsprung OEM. I have heard of complaints in VW drag racing circles where shifting problems were blamed on the input shaft not slowing down quick enough or too quickly for fast shift due to the added weight or lack of weight based on the disk type (4 puck) or materials used. I don't know if anything was ever proven one way or the other, It's not like the VW trans was designed for that anyway, just stirring the pot.
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Old 02-16-2010, 09:19 PM   #45
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