Winter in Maine
So- with no riding I figured it would be the perfect time to replace my shock, clean all the goop and grime off the bike and find out where a small oil leak (so I thought) was coming from. Whelp, a week later and now Im baffled. It wasn't oil but the little Rubber "Gaiter" around the "Clutch Slave" (I think) that was in 4 pieces. Now, I have a 2000 M750, I've looked through the Ducati Omaha parts catalog, the Owners Manual, and the Haynes Service and Repair Manual and I can not find a part number or any information on replacing the gaiter, or upgrading the entire part. I found all kinds of upgrades for the, Evoluzione, STM ... yaddi yaddi yah, but pardon my ignorance, are these not only for the dry clucth? Any idea where I can get this Gaiter, and is that the reason for the leak??
Trying to stay away from the shop fees, and get educated to boot.
Thanks for the time
Ok, so are you leaking oil... that gaiter being crapped is not directly related to this. But it's decay may have contributed. There's a few possible leak sights - but an easy one to check is the push rod seals. There are 2 o-rings that sit on the push rod, on the slave side of the bike (left). With time they wear and flatten out, as a result oil seeps past. They are about $0.05 each, so get a few and replace them.
There's some other places to check - but that is the most likely/ easy to fix. If that's nto the source - post up again and we can persue other theories.
- Clutch slave - any of the aftermarket ones will work just fine on your bike. The slave on a 2000 900 is the same as yours. Though people with wet clutches usually don't buy the aftermarket slaves since the pull on a wet clutch is lighter than the dry clutches. One of the features of the aftermarket slaves is a larger piston, with reduces the force needed at the lever to move the clutch pack.
That little rubber boot is on the parts fiche, it's like a $2 item. If you can't find it, just give a call and someone from the parts dept at Ohmaha should be able to help
You are a hero member .. for sure .. I'm gonna run down and check the 0 rings right now ... I think thats where it leaking because the resevoir is Empty and thats where most of the "gunk" has collected in and around.
-Casey
If the reservoir is empty, then your clutch fluid (which is actually brake fluid) leaked out past the bore of your slave cylinder and distorted/failed your seal and the gaiter too.
Likely the gaiter is the result of the leak which is likely the seal to the bore of your cylinder.
You need a new clutch slave cylinder.
I'm not %100 ..but I think your year bike may have the non rebuildable clutch slave. My 01 m900 had the same problem, but it also has the non rebuildable unit.....that being said I love my yoyo slave.
Ok - Stew was writing up basically the same thing while I was writing the below...
Whoa there... Go back to the reservoir comment. IS your clutch reservoir drained? If so then your leak is probably not oil, but your hydraulic fluid from teh slave. If thats leaking, the hydro fluid will make a mess of that rubber boot.
Start looking at the slave for signs of a leak - corroded paint, missing fluid (which you have) and a mushy feeling lever are all possible sings of a leaky hydraulic system.
Other thigns to check on are the push rod. Signs of obvious spinning means the cluth throw out bearing isn't doing it's job, and the rod is spinning. If that rod spins too long, it can bore a hole in the slave piston.
love the yoyodine also.
got it ca cycleworks.
put it on my 99 750.
been using it 4 yrs now, maybe(memory failing).
does sound like you have a leaking slave.
FYI the throwout bearing that yuu mentioned is on the pressure plate on the clutch. It's the round part in the middle that the push rod rests in.
I too think it is a leaky clutch slave. Now you just need to figure out what is making it leak. Sometimes the clutch fluid mixed with dirt/grime and grease from the chain can look like oil.
+1 on the Yoyodyne slave. I also got mine from CA-cycleworks.
Quote from: erkishhorde on January 22, 2009, 06:21:44 PM
FYI the throwout bearing that yuu mentioned is on the pressure plate on the clutch. It's the round part in the middle that the push rod rests in.
Which you can't see easily since you've got a wet clutch. Though it seems less common for these bearings to gie up in the wet clutch bikes, since they are afforded mroe protections from corrosion and constantly have oil between the surfaces - it's not unheard of.
Hopefully it's just the o-ring around the slave piston that's given it up. It not really uncommon for that o-ring to go at some point. And since your bike is 8/9 years old it wouldn't be a shocker if it was done.
Okay here is the lowdown.
when your clutch slave leaks (and I would bet yours is) you leak brake fluid onto the rubber bellows ( gaiter) gasket.
This causes the rubber to swell and the chain chews up the bellows.
The brake fluid also runs down and mixes with the sludge thrown from your chain so it usually looks like oil.
The 2000 models are rebuildable the seal costs about $8.00 last I checked it is easy to do.
Evoluzone piston kits work well also these are around $25.00
A YoYodine is bulletproof best of the aftermarkets in my opinion. these are $200.00
I got the rebuild kit from Ducati (Ducati parts) but it was more expensive than the Evoluzone kit. Mine was doing the same thing. Problem was fixed with the slave rebuild ~
JM
journeyman what did you get in the kit?
the seal was cheap last I bought simple lipped seal.
the evo kit includes a piston and o-rings
Thank you all!!!
That HAS TO BE where the leak was coming from .. From all your comments on the sludge it creates and looking at the side stand haha there is no doubt. -- Any tips on cleaning this mess!!!!!
So now the debate.. Lots of peopel saying the Yoyodyne .. what are the flaws of the Oberon and the Evoluzione?
Quote from: clittelm750 on January 23, 2009, 08:54:07 AM
From all your comments on the sludge it creates and looking at the side stand haha there is no doubt. -- Any tips on cleaning this mess!!!!!
So now the debate.. Lots of peopel saying the Yoyodyne .. what are the flaws of the Oberon and the Evoluzione?
Just get in there and elbow grease it out. It shouldn't be sticky or goopy like oil can be. Just go buy an auto parts store and get some of those heavy duty paper towels and maybe some small stiff (plastic) bristle brush. And old tooth brush would do pretty well.
All 3 make quality parts. Yoyodyne might have the greatest attention to the fiddly details - but all 3 will work quite well. I've got an Evo unit that's qutie nice.
You've got an Evo unit thats quite nice .... that you are looking to part with? I just founda yoyo on E-bay for $125 .. I might order that this weekend, sounds like a Bargain. I just need to run it by the wife (I did just spend 300 on a Kegerator for the Shop :-) ) I may need to wait for the next bargain hahah
I would either go the cheap route
rebuild oem for $10
or grab that yoyodyne that is a great price.
yoyodine and stock is all I have experianced.
stock leaked