How is the DD vented on a 2005 M7

[woodyh]

How is the DD vented on a 2005 M7. Rebuild for the first time looking at it and can't see how it vents?

 

[Coxy]

They are pretty sneeky sneeky my man... but through the secondary hold down bolt out the splined shaft. Which is why you have that odd groove/hollow on your clutch bolt.
Cheers

 

[Blk88GT]

Coxy is right. Look closely at your stock DD bolt and you'll see it has a hole pin drilled through it.

If you're using an aftermarket deflection adjuster, the allen bolt will have shaved down threads on one side.