Thanks for the following comment TiALSport:

- TiALSport

Thanks for posting in the other thread (Ryan?). I'm very interested in learning more about why I had such a huge amount of oil throughout my engine. Having 3/4" of oil in my V-Flow intake was a baffling situation. If we assume the oil line out of the turbo was functioning properly, can I infer that the "piston ring" was not preventing exhaust gas from entering the turbo? Could the exhaust gas have entered the turbo and forced oil upstream, through the air intake?

It would be great to try and figure this out as it appears impossible, to me, for oil to flow up hill, against the flow of intake air and build up in my air intake box unless something was forcing the situation (like exhaust gas). If some other modification is required to prevent a similiar situation from happening again, I would like to know what it is.

Thanks, Mike

 

There is also a check valve (pcv valve?) in the factory splitter, T or Plenum (depending on what you are calling it) Basically anything that pressurizes the crankcase will cause oil in the intake system.

I have a pair of early Tial turbos here that are about two years old that leaks boost between the compressor housing and plate. I took the compressor housing off tonight, no o-rings in there; yet there is a groove for the o-ring to sit. It's an easy fix, but annoying. I picked these up used, so can't even begin to determine where the issue really started, but I suspect these were never apart from whomever assembled them.