Deezenuts

I figured out where all my oil was going

Air oil separator was bad and the check valve below it was bad

Take your check valve off and you should not be able to blow through it one way all 3 tubes on it

Have not lost any oil since replaced

wrinkledpants

How much were you burning?

Deezenuts

1 quart every 4 tanks of gas

Justinfranke78

You dont happen to have the part numbers for those and where you got them do you?

spooltime

My take is that in most cases, it's likely the check valve that's gone bad rather than the air/oil separator.

The check valve for an '06 Turbo is 948 107 219 50. What's weird is that the air/oil separator is not listed separately for the 955 Turbos (part of the valve cover), but is shown separately for the 957s. For the 957 Turbo, the air/oil separator is 948 107 236 52, but I have no idea if it can be used on the earlier generation Turbos. Anyone know?

Deezenuts

Im positive the air oil separator was the main cause of the oil getting sucked into the intake but the check valve also would have an effect on it.

I could not find the diaphragm for the separator and they wanted to sell me the whole valve cover so I got some high temp gasket maker and fixed it myself.

And here is the check valve I order

http://www.ecstuning.com/Porsche-200...ine/ES1441755/

Adron Beene

While doing my cooling pipe swap, I saw some oil in the throttle body and in the pipes feeding it from the turbos. My thought was that the turbos are in need of a rebuild, but now I see this post and am not sure. Any help with diagnosis is appreciated.

Deezenuts

Bad news im down a quart after 1300 miles

Good news it use to be a quart around 700 miles

wrinkledpants

It's completely normal to see oil in the charge pipes after the turbo. I'm not saying your turbos don't need a rebuild, but if you're only indication is some oil in the charge pipes and throttle body, then you may not have a problem. And, I'm not talking about just oil residue - you could pull the intercooler pipe and get a few ounces of oil spilling out. This is why some people install oil catch cans. This was also a common occurrence on the Audi 2.7 turbo motor - lots of oil in the intercoolers and lines. You could get almost a cup full out of those motors.

bigbuzuki

It is common to get oil in the left intercooler pipe due to the crankcase ventilation system design.

However, it's not common to get oil in the right intercooler pipe.