howdy Problem with an STM slipper on my 916. Works ok for about 100miles then begin to get a strange groaning sound on engaging first. Things deteriorate rapidly after that, bite point changing etc . The last time, this culminated in the slipper throwing all it's bearings and jamming the clutch solid. I've put it back together, but have no much faith in it staying working - any ideas anyone???? (Stack height is 36mm, one inner plain plate with the dish plate one friction plate in)
Snot new, second hand. A question, how much play should I have in the hub before it picks up a gear - its about an eighth of a turn on mine
cheers Steve Just learned that on an Irish forum over here!! So my next plan is to re-order the stack - but that will have me finishing on the outside with a friction plate - or do I double up on plains? Running out of knowledge here. Stack is reading just over 36mm on me Lidl vernier. Any info appreciated.
That's interesting. I don't have an installation manual for the clutch, but someone here gave me this link to a similar type http://www.mad-ducati.com/Technical/BucciSlipperClutch/BUCCI slipper clutch fit 1.jpg - shows a plain outer. As it stands the stack is about right, given that I have a friction on the outside. Maybe I'll just run with that then - cheers
I run one or two plain plates on the inside of a sigma slipper depending on how worn the frictions are. a 1.5, a 2 or 2 x 1.5
Just had a look, and agree with the picture... Therefore take my advice with caution; it's probably nonsense then... All my clutches on 748 and 848, standard and slipper, have finished with a friction on the outside... Sorry for shite advice... Bob
Isnt the stack height a guide and that the distance that matters is the one from the drum to the outer plate?
I might get savaged here... but I don't think I've ever measured the stack height... Only had one issue with a ducati clutch, and that was on a 2000 748 slipper ( Can't recall the make but from Germany...) and we fixed that by swapping in thinner and fatter spacer plates till we got the right feel... Can't recall measuring the height, but we might have done, but swapping the plate thickness fixed it... For the issue in question, my prime concern would be plate order... I though that it would finish with a friction, for the same reason that it starts with one, but that doesn't fit with the picture in the link... Regards, Bob
Yeah, that's the way I see it too. Never mind, that's Easter Monday seen too. I can disassemble and reassemble the clutch blindfold at this stage. With any luck, my main problem was having a plain inner. Thanks you guys.
Taken from another site. Steve Yes - must start with a friction plate, as the steels can fall behind the hub when the slipper turns. The correct stack on the 'Standard" DP slipper starting from the hub is; Friction/convex plate /Friction/Steel /Friction/Steel /Friction/Steel /Friction/Steel /Friction/Steel /Friction/Steel/Steel Hope that made sense? 7 friction drive plates = 3mm each 7 Steels = 2mm 1 Convex = 1.5mm 36.5mm stack height Race version is different 9 frictions, 4 flat steels (1.5mm), 4 convex, and one thick flat plate (2mm) Hope this helps
