Turbo Oil Leak - Help!

[Elite Engineering]

Originally Posted by Taco Time

I've been having the same issues. For my car it was pressure in the crank case. I'm having one of these fancy boxes fabbed up for me.

That right there looks like a big part of your problem. Your running both your clean and dirty sides of the engine to a common tank with breathers. This not only defeats ALL evacuation leading to a much shortened engine life with the contaminants and other damaging compounds to accumulate in the engine oil, you also are allow pressure to always be present and that makes oil return difficult as well as the added blow-by by the pressure causing ring flutter and not allowing the rings to seal properly.


These "tanks" take crankcase evacuation technology back to the "dark ages" of pre 1960's when all engines just vented before engineers knew about the combustion by-products that are part of blow-by.


Get that thing off, and install an actual oil separating crankcase evacuation system and save your motor AND cure your oiling issues.


NEVER (especially a FI engine) defeat evacuation. The engine relies on it to keep oil clean and the abrasive damaging compounds out of the crankcase and oil.


You absolutely need the critical functions the PCV system performed before, and you NEVER mix clean and dirty together. You most have filtered fresh air entering one bank of the engine to flush and make up for the foul damaging compound and oil laden vapors evacuated (sucked out) the opposite bank.


And, you always want to pull vacuum/suction on the crankcase, not allow pressure to always be present as any breatherd can/tank/etc. does. Let us know if you want instructions on doing this properly. Your oil leak is just the first issue. Over time the contaminates will wear bearings/journals/pistons, etc. rapidly as your now allowing all of them to remain in the crankcase, settle and mix with the oil. Once there, they are there to stay as the oil filter can only trap particles down to 15 microns in size. 70% plus of all internal engine wear comes from abrasive particles far smaller, so the oil filter cannot remove them. These MUST be flushed and evacuated while still in suspension before they can settle and contaminate the oil and attack internal components.


And want more examples? There is not a single Professional race class of ANY type racing that does not evacuate and pull suction/vacuum on the crankcase. Only shops that do not understand would ever defeat the crankcase evac system and allow pressure to always be present.


Watch this video. 302 CI small block with app same compression ratio as a LT engine, not much higher than a LS engine both run with pressure just venting VS pulling suction:





Again, NEVER do this....your engine will thank you.

[Taco Time]

Originally Posted by Elite Engineering

That right there looks like a big part of your problem. Your running both your clean and dirty sides of the engine to a common tank with breathers. This not only defeats ALL evacuation leading to a much shortened engine life with the contaminants and other damaging compounds to accumulate in the engine oil, you also are allow pressure to always be present and that makes oil return difficult as well as the added blow-by by the pressure causing ring flutter and not allowing the rings to seal properly.


These "tanks" take crankcase evacuation technology back to the "dark ages" of pre 1960's when all engines just vented before engineers knew about the combustion by-products that are part of blow-by.


Get that thing off, and install an actual oil separating crankcase evacuation system and save your motor AND cure your oiling issues.


NEVER (especially a FI engine) defeat evacuation. The engine relies on it to keep oil clean and the abrasive damaging compounds out of the crankcase and oil.


You absolutely need the critical functions the PCV system performed before, and you NEVER mix clean and dirty together. You most have filtered fresh air entering one bank of the engine to flush and make up for the foul damaging compound and oil laden vapors evacuated (sucked out) the opposite bank.


And, you always want to pull vacuum/suction on the crankcase, not allow pressure to always be present as any breatherd can/tank/etc. does. Let us know if you want instructions on doing this properly. Your oil leak is just the first issue. Over time the contaminates will wear bearings/journals/pistons, etc. rapidly as your now allowing all of them to remain in the crankcase, settle and mix with the oil. Once there, they are there to stay as the oil filter can only trap particles down to 15 microns in size. 70% plus of all internal engine wear comes from abrasive particles far smaller, so the oil filter cannot remove them. These MUST be flushed and evacuated while still in suspension before they can settle and contaminate the oil and attack internal components.


And want more examples? There is not a single Professional race class of ANY type racing that does not evacuate and pull suction/vacuum on the crankcase. Only shops that do not understand would ever defeat the crankcase evac system and allow pressure to always be present.


Watch this video. 302 CI small block with app same compression ratio as a LT engine, not much higher than a LS engine both run with pressure just venting VS pulling suction:





Again, NEVER do this....your engine will thank you.

Uh thanks for the novel.... I'll show this to my builder (seriously). But like I said earlier, this is NOT my car. And nothing like this is installed on my car. It was just a picture.