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999 Clutch Refurb

Discussion in '749 / 999' started by RC1, Aug 17, 2024.

  1. Well that was fun
    The basket has more wear than i thought and the frictions and steels are also more worn and some of the plate tangs are not happy
    I'm gonna replace the whole lot another day but for now I'll make good and reassemble

    The pushrod remained in situ don't know of that's good or bad

    Bearing in pressure plate is smooth

    I've never seen so many plates in a clutch but i guess now it's a gentle rub of each of them

    I don't know what finished stack height should be nor what the thickness of each friction plate and steel plate should be

    Any observations welcome!

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  2. So, it does have a slipper clutch.
    Looking at the rusty spider spring, I would very much recommend a strip, clean and regrease of the mechanism.
    Do you have a manual? That will provide info on plate thickness and the order to fit them as a baseline.
     
  3. Also, pull the rod out as you will need to check the two seals on it and grease that lightly.
     
  4. Don't worry about first gear you only need it to get you out the pits.
     
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  5. ok now we are getting deep
    i need one of those locking gizmos
    no manual but ill get one
     
    • Agree Agree x 1
  6. didnt last long last time i was on track mate
     
  7. I agree, that's not a slipper clutch in the link you sent.
     
  8. There are more sintered friction plates than organic friction plates. I don't have a schematic on my phone (watching speedway at my girlfriend's) but I'll post something tomorrow. IMO, that 3D printed plastic piece of crap is useless. I no longer have a bike of that era so no longer have need of a proper tool. I'll post a picture tomorrow. Andy
     
  9. In my experience, and given the required torques, anything made of « plastic » won’t help… You need steel tools for this.
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  10. I have an Oberon - I place it against a footpeg while undoing /tightening to react the torque.
     
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  11. The Avery tool looks exactly like the one I use. The slots block the basket, the teeth block the drum, and it holds in place with the two screws so you have both hands free to work. That’s everything you need.
     
  12. Those plastic clutch holding tools are poor. I have a metal one with big handle for both 12 & 48 teeth. Make your life simple. The plastic one will irritate you and you too will throw it as far as you can after 1 or 2 uses and buy the metal one.
     
    • Agree Agree x 1
  13. I have both a metal holding tool with a handle and a plastic hands-free bolt-on job. I've used both for various jobs - most recently, I replaced the clutch basket on my 749R (now sold), using the plastic bolt-on tool - it's made of quite sturdy stuff, and hasn't given me any problems.

    I used Rocol Dry Moly paste for lubricating the ramps on that clutch, and have the remainder of the tube that I likely won't need again. Drop me a PM if you are still looking for grease, and I might be able to help you out.
     
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  15. Indeed. Only need to ask. :joy:
     
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  16. Theres a guy on here makes ducati tools, i have his clutch and flywheel holding tools, theyre pretty nicely made. Michael is his name I think. Forgot his username though.
     
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