I had a carbon one on there before but it shattered when I had an off, hence I had to fit the new clutch and what I thought was a sturdy cover. The bit you high lighted is perfectly smooth and round, like a washer, which only adds confusion, although I agree it does appear to be what's left of my cover.
How many miles had you covered since you torqued it up out of interest? It's the other side I always worry about because the hot oil tends to break down the Loctite after a while. Hope you get back on the road soon.
What has the crank got to do with it @Chris ? Just to remind you, the clutch is on the end of the gearbox mainshaft, not the crankshaft.
if the clutch basket had any wear on the splines possibly from running slightly loos in the past? no amount of locktight will stop the nut coming loos as the basket will rotate slightly on the splines during acceleration and deceleration.
The basket isn't held in by the big nut though, is it? It's bolted in with 8 smaller bolts. That's why it's still in place in thet pic. It's the centre hub that's held in with the centre nut.
you are absolutely right of course, memory shot/poor terminology, but i hope you know what I meant. i.e left side crank nut and right side clutch nut are two most likely to come loose. Play at drum bearing also always worth a check while you're in there.
yip use it all time. but there's no denying center nuts come loos when splines are worn. spring washers and lock tight rock. and even then?
I know and hopefully you also know that if, on stripping, a loose spline is discovered then it's a 'no brainer'?? i.e. something with a 'substantial' mass* is going to 'walk around' far more so than if tight. This is why we should never complain when anything* splined is tough to remove.
I had exactly the same thing happen on my 916 some years back. I'd had it repaired following a collision that broke the clutch so the bike had had a complete new clutch fitted by a Ducati dealer under the insurance. First ride out and after 20-30 miles the clutch started to feel odd, requiring more movement than normal, I turned round to limp home but it 'chewed' through the carbon cover and ejected into the fairing, leaving me stranded at the roadside. Dealer claimed that the 'O' ring let go! and they did make it all good with a new fairing and clutch cover etc. but I would have preferred it if they'd been honest and admitted to it not being torqued up properly.
Oh and as it's time for new bits, is there any real option for plates other than ducati ones? Don't want to end up with junk trying to save a few quid. Are the lightweight baskets actually any better or do they just wear out quicker?
so just for those curious, this is the cover I had fitted. Not sure that it has any reflection on its quality but there we go
Well IMO it's bling and just about good-enough to stop your clothing from getting tangled, nothing more. I don't think it would offer much protection in a crash, and we know that it is incapable of retaining a clutch when the nut comes off!
Well clearly it was a bad choice, but what makes a good cover? Seem to get loads of near identical pattern of the same materials but vary in price massively.
See post #20. JHP do a half cover as shown and also a full cover. I had the full on my 748 whilst I had it. Most of the really open billet covers are just bling. You should be able to gauge how strong a cover is based on its design. The more open space there is, the weaker it will be in an off or what you had.
I use this style on my bikes... Ducati Kupplung Deckel, Kupplungsdeckel original 851 SP2/SP3, 888 SP4, 900SL | eBay
I know this is going to appear that I am trying to take advantage of your rather distressing situation but I have this for sale if it is any use to you. http://ducatiforum.co.uk/threads/used-aftermarket-dry-slipper-clutch.40414/ Andy
