On the S4 turbo, Does the big turbo oil line have a gasket on the center section of the turbo? Or is there one just on the block and the line extended that attaches to the block?

 

There is no gasket from the line to the turbo. At least on the 3 Ive taken apart there hasnt been.

 

What about the were the extender mounts to the block, and then where the line mounts the the extender?

 

I have never been too lucky trying to get the turbo oil supply line to seal WITHOUT any gasket.  I've tried copious amounts of RTV, but that doesn't work.  Be careful when saying you've never seen any gasket there, as the paper gasket tends to stick to the pipe side pretty stubbornly.

OTOH, the flanges on the opposite side on the turbo closer to the engine side can be sealed with RTV.  I think the heat and vibration from the turbo isn't as bad over there.


-Ted