Oil drips from intake plenum.

[JT Turbo]

I have a fresh motor and it drips oil.  This annoys me to no end and I hate hate hate the oil drips in my garage and especially leaving them in other peoples driveways.

Is this normal?  Does anyone have an engine that doesn't drip oil?  In these pictures, you can see oil at the bottom of (and running down) the turbo intake and the blow-off valve opening.






I checked the valve cover, but it seems pretty clean and dry as shown below




I also had a look inside my intake plenum where it mates to the turbo. Is the notch in the seat (shown at 9:00) supposed to be there? It is down (at 6:00) when installed.

[rallydiesel]

I have a leak in pretty much the same spot and haven't been able to locate exactly where it's coming from. Also on a rebuilt engine and I even pulled the head to locate it!  Still haven't found it. Possibly it's leaking from one of the manifold stud holes. Valve cover gasket has been dry directly underneath. Seems to be coming from either the first or second intake/exhaust manifold area. I'm going to use liquid copper gasket in the bolt holes and see if that stops it. I ported the head while I had it out for fun.

[fatmobile]

Oil in the turbo intake is from blowby.
 An oil catch can will remove most of that.

 If block pressure is high,
 it will cause oil to push past the turbo seals.

[R.O.R-2.0]

fresh motors have more blow by than good used engines.