1000DS layshaft DIY?

[JonS2R]

I've got a leak coming from what I believe is called the layshaft seal. It's the seal behind the two lower pulleys that are part of the timing belt system. It seems like a pretty straight forward job in concept but I'm having a hard time finding details on how to do it. Specifically, the exact tool I need to hold the pulley and get the nut off as well as the torque values for reinstalling it. I do have the factory service manual but it barely spends a page talking about removing the pulleys and isn't very detailed.

Has anyone done it or know of a better guide for it? I'v searched one here and seen it mentioned a few times but didn't find anything super specific about the process.

[koko64]

I've never had to do one, but others have here iirc.

An eBay search should bring up the tools needed. HDESA (hope that's the correct name), should have what you need.

[koko64]

https://www.ebay.com.au/str/hdesausa?norover=1&mkevt=1&mkrid=705-153696-586386-2&mkcid=2&keyword=&crlp=355319841086_&MT_ID=&geo_id=&rlsatarget=dsa-767705936068&adpos=&device=t&mktype=&loc=9071297&poi=&abcId=&cmpgn=2032798714&sitelnk=&adgroupid=77329603372&network=g&matchtype=b&gclid=EAIaIQobChMI7Impw7yR7wIV1TArCh2bNQybEAMYASAAEgLz5fD_BwE

[koko64]

https://www.ebay.com.au/str/hdesausa/DUCATI-FACTORY-TOOLS/_i.html?_storecat=4012746011

[greenmonster]

https://www.ebay.com.au/itm/Ducati-Monster-900-1000-DS-Paul-Smart-Engine-Service-Tools/303372186444?hash=item46a264334c:g:Vj8AAOSwLhFdJN~s

In pic 1, you need
1. lower left corner, tool to hold timing wheel
2. and top right corner, timing wheel nut tool

When you've replaced seal, make small edge were it sits top stop it from turning and leak again.
You'll see this when seal is is removed.
Do use new nut for wheel.
It's a pretty straight forward job.

[Duck-Stew]

The old seal can be a bugger to remove.  I’ve had to use a small screw to thread into the old one so I can remove it.

[JonS2R]

Thanks guys, I've got the necessary tools ordered.

I've read that the nut can be tough to break loose. Can I hit it with an impact or is that going to cause damage to the layshaft? Obviously I wouldn't reinstall it that way.

Does anyone know the torque value for reinstalling the nut?

[Duck-Stew]

An impact will damage the tool.  Do not use.  Use heat cycles to ease the removal.

[JonS2R]

Just to update for informational purposes and to help anyone searching about this in the future:

I ordered the nut socket and pulley holder from HDESAUSA which made it a breeze. Breaking the nut loose was pretty easy. I braced the pulley holder against the clutch side of the engine then a little effort with a breaker bar broke the nut loose. I backed it off until I could remove it by hand BUT before removing it completely I rotated the engine to line up with the timing marks on the pulley.

The seal itself was so hard and shrunken that I could spin it around in place with my finger. I used a couple of picks to break through the surface of the seal and hooked it to pull it out.

The C-clip on the layshaft was the biggest pain in the ass to get off. I managed to warp it in the process preventing me from reusing it. This was my biggest error. It's now been two weeks that I've been waiting for a new one from Ducati. Meanwhile, the weather has warmed up enough to ride more frequently yet my bike sits waiting. It looks like it will be another week before I have it in hand. So word to the wise, order one of these along with the seal and new shaft nut so you don't end up in the same boat.

[koko64]