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ducatipaso.org :: View topic - Clutch Mod. "Thank you Donaldoduck!"
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Clutch Mod. "Thank you Donaldoduck!"
http://ducatipaso.org/forum/viewtopic.php?f=3&t=6005		 Page 1 of 1
Author:  st2sam [ Sat Apr 27, 2013 11:32 pm ]
Post subject:  Clutch Mod. "Thank you Donaldoduck!"
Donaldoduck,
I'm not sure if your still a 907ie owner or frequent this site but I just completed your clutch mod and I gotta say, it works fantastic!

My clutch was so loud you couldn't hear the exhaust, it actually rattled so bad it made noise even when the motor was freewheeling down the highway! :shock:

Your video was also right on the money, my clutch sounds exactly the same as yours. Thanks for the pictures too... :thumbup:

I still have my Ducati rattle but at a tolerable level, awesome.
I highly recommend this mod. :thumbup:

Oh, and rather than start a new thread I installed my tachometer cable from a 1997 900ss today, works like a charm,
thank you Derek for the info and especially for posting the correct part number.

My 907ie, at 24,000mi., runs like a top. Thanks DUCATIPASO.ORG and every member who takes the time to share their knowledge on this site.

I'm hoisting a few to all, :beer: :beer: :beer: Thank you!
Author:  Mc tool [ Sun Apr 28, 2013 3:53 am ]
Post subject:  Re: Clutch Mod. "Thank you Donaldoduck!"
Did you add an old friction plate ( doesn't need to be new ) at the back of the clutch pack ? If you still have a bit of rattle , that can be got rid of completely by bending the tangs on the extra plate


and fit it with the tangs down as shown. The whole idea is to get this extra plate to sit slightly proud of the flange at the rear of the clutch hub ( like maybe 1/2 mm ) so that the 1st steel plate fitted rest against this extra plate AS WELL as the flange . When the clutch is assembled and the clutch is released this extra plate provides a friction connection between the back of the 1st inserted steel plate and the basket which prevents the rattle . If the clutch still rattles you need a bit more bend on the tangs , if the clutch doesn't disengage properly you need a bit less bend . It can take a bit of mucking round to get it right but when you do you will have a clutch that works perfectly and does not rattle at all. Another issue with the clutch is weeping oil seals .... if there is any black sticky stuff at all in the clutch replace both seals . If your clutch is oil tight and has good friction plates ( I only use sureflex sintered bronze friction plates ) you wont have to keep pulling it to bits and clean , polish , grind , scotch brite whatever shit off the plates to keep it working great :)
Author:  st2sam [ Mon Apr 29, 2013 1:28 pm ]
Post subject:  Re: Clutch Mod. "Thank you Donaldoduck!"
Thanks for the tip Mc tool, but I think the 907ie clutch is a little different than the 906.

The extra (used) friction plate, put in first against the basket, works perfect.
The "jingle" is just right! :thumbup:

On a side note, I can't believe how thin the friction material is :shock: , it's only about the thickness of a single sheet of paper.
I wonder if I'm due for a new clutch??? (It does not slip.)
Author:  higgy [ Mon Apr 29, 2013 3:02 pm ]
Post subject:  Re: Clutch Mod. "Thank you Donaldoduck!"
Author:  Mc tool [ Mon Apr 29, 2013 11:30 pm ]
Post subject:  Re: Clutch Mod. "Thank you Donaldoduck!"
Author:  du907 [ Mon Jul 15, 2013 2:45 am ]
Post subject:  Re: Clutch Mod. "Thank you Donaldoduck!"
Mc tool,

Exactly, I replaced my clutch basket, it was as you described. The basket I replaced it with is like the picture above, a continuous radius at the bottom. My existing basket was somewhat square at the bottom. This makes a difference, as it moves the clutch pack further out, away from the centerline of the engine. It caused the pressure disc spring retainers to scrape the inside of the clutch cover. I had to add the rubber gasket (standard on some Ducati models) between the clutch cover and the engine to space the cover out enough to clear the spring retainers. I posted this information on this site. Changing the basket from the original basket to the new part number that is listed will move the clutch pack out a little. I guess it may or may not affect everyones as it did mine.
du907
Author:  Mc tool [ Mon Jul 15, 2013 6:24 am ]
Post subject:  Re: Clutch Mod. "Thank you Donaldoduck!"
Sorry du907 , but I cant agree with that . The depth or shape of the slots in the outer basket have no influence on the position of the "pressure disc spring retainers " as these are screwed into the clutch hub, even if the stack was higher these retainers wouldn't move . With both types of clutch basket my SS ( same clutch as the 907 ) needed that rubber seal to provide clearance for the spring retainers and as far as I know it should always be fitted :)
Author:  907pasonut [ Mon Jul 15, 2013 8:42 am ]
Post subject:  Re: Clutch Mod. "Thank you Donaldoduck!"
Author:  du907 [ Mon Jul 15, 2013 7:06 pm ]
Post subject:  Re: Clutch Mod. "Thank you Donaldoduck!"
907pasonut,
That's my point. What you said is the way my original basket was, the slot was more or less square shape. On the newer basket I bought, the slot was shaped like the one in the picture above.
My bike new did not have a rubber gasket between the clutch cover and the engine housing. The clearance was close because after I put everything back together I could hear more "noise". I removed the clutch cover and could see the swirl marks the spring retainers were making on the inside of the cover. They weren't deep markings but enough to make additional "noise". So I got the rubber gasket from a later model 900ss I think and that provides the necessary clearance I now have to have.
Didn't need it unitl I changed the clutch basket. All is well though, just wondered if anyone else had ran across this. I think my clutch plate staking is fiber plate first, then alternating plates with two steel plates at the top.
du907
Author:  DonaldoDuck [ Tue Dec 03, 2013 7:58 pm ]
Post subject:  Re: Clutch Mod. "Thank you Donaldoduck!"
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