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Clutch woes (or, "what, already?") http://ducatipaso.org/forum/viewtopic.php?f=1&t=7416 |
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Author: | fasterdammit [ Tue Apr 19, 2016 9:13 pm ] |
Post subject: | Clutch woes (or, "what, already?") |
Quick summary: my ~24k+ mile '88 750 started giving me clutch issues a couple seasons ago. Turned out the bearing in the slave piston disintegrated; while I was in there, I noticed the friction discs were exceptionally thin so I just replaced all of it. Naturally, the original part numbers for the discs were no longer available and I wound up with a replacement set - the Ducati P/N of which I'll provide later (don't have it on me). I barely got a complete season before the replacement bearing grenaded, so I swapped that out again, no problem. Clutch looked & felt fine. I got through the rest of the season (last year), and I've barely gone 500 miles this season and I started getting clutch slip and a lot of juddering under even a slight load. Off-idle was ok, but I could very easily ask too much of it. I pulled the clutch to check the state of affairs, and it seemed exceptionally mucky in there - and not just dust, so I'm of the opinion that the seals may have expired. However, upon inspecting the plates, they appear to have barely any friction material left. The clutch pack measures just under 33.5mm. So I'm confused here, because I've found some indication that dry clutch Paso's should have a 33.5mm stack height, with 6 friction discs (versus 7 in my '97 Monster) bookended by 'warped' steel discs (mine aren't warped). However, I recall seeing reports of a stack height being 37-38mm. Unless, that was strictly for newer/higher out put engines? Questions for those who'd know: 1. What's the proper clutch stack height? 33.5mm w/ 6 friction discs, or otherwise? 2. I haven't pulled the basket yet; is it just the big locknut at the bottom of the basket? What's the best practice - put the bike in 5th, hold the rear brake and crank it off? 3. How much friction material should be on the discs? Not much, I realize but - 'sheet of paper' thick, 'business card' thick, or something measurable? 4. Replacing oil seal(s). Nuisance? Figures it's brand new oil ... Thanks in advance as always. What would I do with you lot, I dunno. |
Author: | Derek [ Wed Apr 20, 2016 8:38 am ] |
Post subject: | Re: Clutch woes (or, "what, already?") |
Author: | paso750 [ Wed Apr 20, 2016 11:51 am ] |
Post subject: | Re: Clutch woes (or, "what, already?") |
Author: | fasterdammit [ Wed Apr 20, 2016 6:51 pm ] |
Post subject: | Re: Clutch woes (or, "what, already?") |
Author: | MarkST [ Wed Apr 20, 2016 7:55 pm ] |
Post subject: | Re: Clutch woes (or, "what, already?") |
Author: | fasterdammit [ Mon May 09, 2016 7:16 pm ] |
Post subject: | Re: Clutch woes (or, "what, already?") |
Does anyone have a part number for that seal, or a parts diagram? I've got the recommended clutch tool on its way (thanks, G, as always!) |
Author: | paso750 [ Tue May 10, 2016 8:20 am ] |
Post subject: | Re: Clutch woes (or, "what, already?") |
Author: | fasterdammit [ Wed May 11, 2016 6:57 pm ] |
Post subject: | Re: Clutch woes (or, "what, already?") |
Author: | Mc tool [ Thu May 12, 2016 3:02 am ] |
Post subject: | Re: Clutch woes (or, "what, already?") |
The 2 clutch seals are a standard size available from a bearing shop , cant remember the size but the price was so good that I bought 2 sets . Size is probly written on the seal , however if ya want I can dig out my spares and get the size for you ![]() |
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