oktay400

I found a lot of oil in my intake piping and innercooler, my question is, can oil only be brought in to the intake piping from the turbos, thus saying that my turbo oil seals have gone bad?

rynberg

There will always be a light film of oil in the IC/intake piping. If you have heavy amounts, then yes, your turbos are going. However, I have had pretty heavy oiling in my IC piping for over 20k miles and my turbos still boost 13-14 psi just fine. It's only a matter of time though before some brand new 99-specs find their way on the car....

oktay400

It still boosts fine, but I will smoke a lot under boost due to the standing oil in my piping, that my turbos are pissing out.

broken93

Check your pcv system and make sure you're not just having drain problems.

Flywheel59

su_maverick

ok, tried looking in the shop manual for the pcv system. Is it located with the oil pan? Usually it is pretty easy thing to do yourself and check on the other cars I have had but is it a PITA with the 7?

jd to rescue

iTrader: (3)

A thin film of oil in the intake piping is normal. The PCV system is set up with a secondary vent from the crankcase into the intake port of the primary turbo. This serves as the vent under certain manifold pressures (i.e., under certain boost conditions). So a film of oil in the intake is normal. If you have had the PCV valve removed, however, then the secondary vent becomes a primary vent in which case you will have a larger quantity of oil dumping into the intake piping. That is why people who remove the PCV valve use an oil catch tank of some sort off the vacuum lines feeding into the primary turbo intake. If you have not had the PCV valve removed and you are pooling large quantities of oil in the bottom of the intercooler, then it is very possible that something else is wrong. Possibly the turbo seals are going.

jd to rescue

iTrader: (3)

The PCV valve is located under the black pressure box ahead of the UIM. It is the largest "check" valve, usually black and grey in color. It is connected between hosing that runs from the oil filler neck to the UIM.

Enconsiderate

I know a light amount is perfrectly norm! If you use a oil catch tank it should stop that oil from going into you IC piping. I have also heard that oil going through TB can actually decrease your octane.

su_maverick

ok, I will try to check that out. My car is smoking on startup and I wanted to check that out first to see if its constricted. Where can I find removal procedures at in the manual? I just have the pdf version from scud.

su_maverick

ok I just pulled off the top of the y pipe and it was caked in oil. But it probalby hasnt been changed/cleaned since it was assembled. I will take a pic for confirmation when my batteries are charged.

su_maverick

here is a pic of my pipe w/ the oil

jd to rescue

iTrader: (3)

From the picture, it doesn't look too bad. I would pull the hosing down to the intercooler and check in the bottom "tank" of the intercooler. If there is oil pooled-up there, then you would say that that is excessive oil in the intake.

su_maverick

gotcha. I will do that when I get a chance. Im just trying to figure out where the problem is comming from. I am getting more and more advice that it is the pvc system but I have not yet been able to find a diagram of it with R&R notes so that I can check it out. I have the pdf shop manual from scud. but cant find it there. I know that a little smoke is fine but I think that while mine is not excessive, the fact that it goes until completely warm and I am seeing a little bit of a spike in oil pressure until warm, that it might be clogged. Any help would be appreciated.

oktay400

Lets say it is the pcv valve, could it actually dump that much oil in your intake piping, that it would make it standing oil and cause your car to fill up the whole street with smoke.

Also I took my car on a test drive, I removed the piping that goes from the top end of the innercooler to the y pipe. My car no longer smoked under boost but when I poped the hood my alternator was covered in oil.

su_maverick

how much oil and does yours smoke only on startup? btw, you didnt drive with your IC disconnected did you?

areXseven

iTrader: (1)

su_maverick

lmao