So, I just found out that my Yoyodyne slave was leaking on me after less than a year.

After calling them for the warranty they told me that the most common reason for slave failure was the push rod seizing up against the pressure plate and drilling into the piston of the slave thus destroying it. In which case the warranty will cover 50% of the replacement cost which is still pretty good. The older monsters have a rounded end on the pushrod and are a bit shorter so hopefully the little extender pill helped save the cylinder so all they have to do is replace the seals.

That being said, the next time you take your pressure plate off to examine/ replace your frictions and steels don't forget to put a little grease on the end of that push rod!

Doh! Check your throw out bearing too. If it has some drag its what's causing the pushrod to spin. Ask me how I know. You can get a replacement bearing from napa. I don't have the part number but you can take the old one in and match it up.

Quote from: erkishhorde on October 13, 2008, 07:26:20 AM
So, I just found out that my Yoyodyne slave was leaking on me after less than a year.

After calling them for the warranty they told me that the most common reason for slave failure was the push rod seizing up against the pressure plate and drilling into the piston of the slave thus destroying it. In which case the warranty will cover 50% of the replacement cost which is still pretty good. The older monsters have a rounded end on the pushrod and are a bit shorter so hopefully the little extender pill helped save the cylinder so all they have to do is replace the seals.

That being said, the next time you take your pressure plate off to examine/ replace your frictions and steels don't forget to put a little grease on the end of that push rod!

That is why I suggested you check your pressure plate, the gold flakes you found was a clue that the push rod was rotating.

Another safeguard is to use the STM pressure plate bushing that has a little ball bearing where the pushrod makes contact, thus minimizing rotation of the pushrod before the throwout bearing starts to do its thing.  Plus, it looks real purdy!

BK

Quote from: Capo on October 13, 2008, 10:40:23 AM
That is why I suggested you check your pressure plate, the gold flakes you found was a clue that the push rod was rotating.

Yup, you were right. I forgot to thank you for your help in my other thread so, thank you! 

Throw out bearing from Chris Kelley, $6:
http://www.ca-cycleworks.com/shop/catalog/ducati/engine.html
You can get a Yoyo slave from him also.

Actually I did get my yoyo slave from him. 

I lost a clutch slave because of a worn out throwout bearing.  The bearings are cheap, even from the Ducati dealer, and they're easy to replace.  You have to take the pressure plate off to check it, but that's easy enough on the dry clutch models.