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Sportster Motorcycle Transmission, Clutch, Primary & Secondary Drive Transmission, Clutch and primary or secondary drive problems, advice, and/or how tos.

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  #51  
Old 30th March 2020
Tomcatt Tomcatt is offline
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Quote:
Originally Posted by rocketmangb View Post
Is the "Judder" assembly (3 parts) equal to one Energy friction ?
Does Not seem correct
Yes. The 2 "extra" spring pieces sit "inside" the inner diameter of the "thin judder friction". The "thin judder friction" is "thin" because it has a bigger ID. The friction surface is thinner radially.
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  #52  
Old 30th March 2020
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OK,but how does it dampen if it dont compress ?
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  #53  
Old 30th March 2020
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One of the parts IS a spring and does compress...

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  #54  
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Quote:
Originally Posted by rocketmangb View Post
OK,but how does it dampen if it dont compress ?
In service, the 2 spring pieces compress down to the thickness of the "judder friction". The "judder friction" and the 2 spring pieces add nothing to the pack thickness when the spring is compressed.

I'm not sure "dampen" is the right term. It keeps a little pressure on the clutch pack (emphasis on little) to keep the plates from chattering/screeching. I know when mine would screech I could feel the plates chattering thru the clutch lever.
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  #55  
Old 30th March 2020
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OK
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  #56  
Old 31st March 2020
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Quote:
Originally Posted by Tomcatt View Post
What exactly did you order? Just the thin friction and the two judder spring parts?

You can use the your E1 discs and plates. The thin judder spring friction plate will replace one E1 friction but you still need a steel to replace the one junk E1 steel you posted pics of.
I ordered the 2 judder spring parts, thin friction disc and 2 OEM plates, assuming I'm going to reuse my original friction discs and plates.
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  #57  
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Quote:
Originally Posted by Mark Jags View Post
I ordered the 2 judder spring parts, thin friction disc and 2 OEM plates, assuming I'm going to reuse my original friction discs and plates.
If you're going to use your original clutch pack minus the grenade plate that's exactly what you want.

Thanks to Bluto for laying this out for us!
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