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Motors Motorcycle Mayhem

Discussion in 'General' started by RTT, 24 Feb 2009.

  1. Xir

    Xir Modder

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    So, I've ripped apart the clutch of my trusted Ducati 750SS. It's a 1997 one (registered, built maybe 1996.)
    I have a few books with technical data, and all state the same, the (oil-bath) 1994-1998 750SS have the following clutch plates:

    New 2,5mm Worn 2.15mm
    or
    New 2,6mm Worn 2.2mm

    Mine (50.000km old) are 2.75mm :duh:

    Anyone has any idea?
     
  2. mrlongbeard

    mrlongbeard Multimodder

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    Try a different micrometer
     
  3. Xir

    Xir Modder

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    No the micrometer is correct..., it may be off, but not by 0,5mm
     
  4. Krikkit

    Krikkit All glory to the hypnotoad! Super Moderator

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    Presumably it's had a non-OEM clutch kit at some point? That or the manual's wrong of course!

    Why did you take the clutch out in the first place?
     
  5. Xir

    Xir Modder

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    Cause it's the original clutch (afaik), I bougt the bike with well under 20.000km and it's started to become difficult to shift, so it may well be a worn clutch (or dented clutch cage or hub)

    The manuals are definitely wrong in that my clutch cover does not exist in all three of them. :rollingeyes:
     
  6. boiled_elephant

    boiled_elephant Merom Celeron 4 lyfe

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    Could a previous owner have shagged the clutch and replaced it? At very low miles it'd have been well worth doing, especially to the original owner. As Krikkit says, you could be looking at some aftermarket thing in there.

    They don't bother applying branding and markings to internal bits like that, I presume...
     
  7. Krikkit

    Krikkit All glory to the hypnotoad! Super Moderator

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    I'd just chuck the proper clutch at it and see what happens
     
  8. Xir

    Xir Modder

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    Happening, the original Ducati clutch set also deviates from the manuals :lol:
     
  9. Xir

    Xir Modder

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    So I've got the new, original clutch in.
    Also new seals in the clutch slave cylinder and a new crankshaft seal (that one was a :wallbash: to replace)

    Nest step, bleed the clutch
     
  10. Krikkit

    Krikkit All glory to the hypnotoad! Super Moderator

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    Fingers crossed then, crank seals are always testing! Unless you've got a perfect match of a socket of course.
     
  11. Xir

    Xir Modder

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    ehmmm, it's not a direct crank seal, but the seal that sits between the oil pump and the crank-stump?
    Anyway it's in. :grin:

    Bleeding the clutch is as bad as it says everywhere. But the clutch seems to be working, to what extent I'll only see when the engine runs again.
    Next step: Belts change.

    Oh, to do that I've got to take the spark plugs out...guess what size spark plug nut I DON'T have?
    (and no, the original one that came with the bike also doesn't fit.) :wallbash:

    So an excuse for me to buy a set of pipe-nuts....:grin:
     
  12. boiled_elephant

    boiled_elephant Merom Celeron 4 lyfe

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    Vicariously experiencing your torment from afar has given me a retrospective vindication for all the times I went "yeah okay" to some huge garage bill, just so I wouldn't have to deal with whatever it was.
     

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