748 Oberon Clutch Slave -- Rock Hard Lever

Discussion in '748 / 916 / 996 / 998' started by CarloL, Nov 5, 2017.

  1. Bike 2002 748s Ducati

    • Installed to the Bike and Bleed as per instructions, the bike has a rock hard Clutch lever (the Pre 2000 Push Rod Spacer was NOT used)
    • Unbolted the Oberon unit from the bike , to test if the piston in the Slave would move , still rock hard Clutch lever , no slave piston movement
    • The OEM Slave was re-installed and Bled , no issues
    I assume it is a faulty Slave cylinder ? or am I missing something
     
    #1 CarloL, Nov 5, 2017
    Last edited: Nov 5, 2017
  2. its a pretty simple device so def sounds like a seized piston
     
  3. Thanks , my thinking too

    Hopefully they will replace
     
  4. I was talking to Oberon , they think Air is still in the line ; but that makes no sense to me , as air will compress so I would have a soft lever not a rock hard lever!

    This is going to work out $$ , have to send back pay for postage , they test , tell me if it is faulty or not

    Will see how she goes!
     
    #4 CarloL, Nov 6, 2017
    Last edited: Nov 6, 2017
    • Agree Agree x 1
  5. Thats a pain....im currently using 2 oberon's (one on my Hyper and one on my Supermoto [525]) both are fine...ive had oberon's on the last 2 hypers also...they were both fine....
     
  6. Biting the bullet and going to the local Duke Guru , hopefully its not my stupidity !
     
  7. with slave removed and a torch (and possibly even a prodder that won't damage anything, like the blunt end of a plastic biro/pencil) can you confirm that slave piston is right at the bottom of the bore (furthest away from mounting face)? does it look dry/any sign of residue on bore wall?
     
  8. It has geease around the piston , in the bore
     
  9. Try fitting the spacer. I had this problem on a 2000 model. Spacer not required allegedly but it was.
     
  10. Was talking to chris , looks like the piston was vacuumed shut, probably from storage, pressed on it and it freed up with a rush of air

    Hopefully all good now
     
    • Like Like x 2
  11. Ah - good. As i say there stuff is always top notch. Has been for me anyway!
     
  12. agree, apart from that one-piece/2 function wheel socket for Multistrada etc made from camembert - they really ought to stop producing it afaic.
     
    • Agree Agree x 1
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