Burning oil - blown turbo with no shaft play?

[YupinmyGst]

I just got my car running again after an AWD swap. The exhaust is filled with oil and it's smoking under boost. I have an HX35, it has no shaft play in and out or side to side. There is no oil in the intercooler piping or on the screen/air filter. There is oil between the exhaust manifold and turbo. made a new return line, put a new head on it with good valves. The compression is good. Plugs keep getting fouled. Unfortunately I don't have a wideband but it was dynoed before. It has always smoked a little, but it use to be black smoke, now it's white. Could the turbo still be blown? Or could the rings be bad? needs to be retuned?

Please suggest additional tests.
Thanks

 

[gofer]

white smoke = coolant // blue smoke = oil // black smoke = fuel so it wouldn't make sense your smoking white and seeing oil between the exh. mani and turbo. from what ive read bad valve seals will do this... im not posting to suggest a different test because id be lost too but the fact that your seeing white smoke out your exhaust but you've got oil in the exhaust manifold doesn't make sense.



once you do get your car up and this prob. taken care of your going to love what that AWD swap did to the GS-T!

 

[rinmancustom]

This just happened to me. I had to put new turbo and o2 sensor housing and downpipe. All my seals were bad to.

 

[ramsack]

oil burning in the combustion chamber is blue, but oil burning in the exhaust is white, so it could be turbo seals.

 

[JusMX141]

I just got my car running again after an AWD swap. The exhaust is filled with oil and it's smoking under boost. I have an HX35, it has no shaft play in and out or side to side. There is no oil in the intercooler piping or on the screen/air filter. There is oil between the exhaust manifold and turbo. made a new return line, put a new head on it with good valves. The compression is good. Plugs keep getting fouled.

If you're getting oil in the exhaust system before the turbo, why are you blaming the turbo?

Same goes for the fouled plugs....water doesn't flow uphill, my friend. You have a valve seal / guide issue.


You don't mention how you're feeding the turbo...it should be fed from the filter housing with a .075"-.095" restrictor in line to be sure the turbo isn't getting too much oil pressure during wide-open throttle. If you're over-oiling the turbo, the smoke will plague you no matter what you bolt to your manifold.