Is the intake wet with oil if you take the rubber 90 piece off? Did you install an OEM turbo?
Is he even still on this site?You make sure the check valve is installed correctly? Sounds like it might be backwards.
Reach out to Andrei if you're having trouble with the kit - he will probably know immediately what's going on.
Not sure. If you don't hear anything, I'll reach out to him directly.Is he even still on this site?
I did compression tests before replacing the turbo, off hand I think the compression was 210 - 240 - 240 - 235. All of the plugs were wet with oil when I changed the turbo since it was burning oil through the intake. Using a bore camera, none of the pistons looked cracked. I can check again, but I suspect it will be the same (I don't see a piston crack forming/showing within 1k miles).Have you run a compression test? Any specific plug coated with oil?
The 1.4T engines are somewhat known for cracking pistons, and this may well be one of the signs.
The usual failure is actually between the ringlands - not all that uncommon on turbo cars (esp Subaru). The top of the piston will usually appear undamaged. The compression numbers still look better than I'd expect, but that one does appear to be down a little vs the other cylinders.Investigated everything again post new turbo install. The PCV is not pulling oil, just lots of condensation. Using a bore scope/camera, cylinder 1 is wet with oil while the others are pretty dry, albeit carbon built up. I can't see any physical crack in the top of the piston, but doesn't mean they aren't covered by carbon. There is also oil sitting along the edge between the piston and cylinder wall. The cylinder wall still looks perfectly clean, cross hatching and all, no scratches or marred areas.
Not really sure how or where the piston failed, but looks like I'll be replacing a piston and rings soon.
Yes, except insofar as the excessive vacuum might be indicating excessive flow through the ventilation system, so that the ability of the system to separate the liquid and gas phases is overwhelmed. That's why it's important to have the right orifice installed.I'd like to point out that excessive crankcase vacuum generally won't cause excessive oil consumption...