Welcome to the North American Subaru Impreza Owners Club Monday April 21, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 10-02-2012, 02:54 AM   #1
2man
Scooby Newbie
 
Member#: 240009
Join Date: Mar 2010
Chapter/Region: TXIC
Location: Denton, Texas
Vehicle:
2005 WRX STi
crystal metallic grey

Default Smokes Really Bad!?

My car is burning oil really bad. At idle it would be a constant smoke, but when I give it some throttle, it's like a house caught on fire! SO ... after awhile of poking around. I saw that oil is coming out of the compressor side of the turbo. I cleaned the intercooler, hoses, and lines and put everything back together to run it (SO I could park it outside.) It idled fine and there were barely any smoke at idle for a few minutes, until I decided to give it some throttle again and again it raged up the blueish tinted smoke.

The turbo was taken out and brought to the guys at Majestic turbos to ideally get rebuilt. When I got there, the guy behind the counter had some time and consulted with me. Outstanding guy he was because he actually helped diagnosed the turbo and asked what happened. He said the turbo seems to have no shaft play and spins freely but also told me to check my engine first to see if there were any problems with it. But if I insist he could have just taken the turbo and put in a work order for a rebuild.

So I thanked him and left with my turbo in hand. I have not done anything yet so far. I'm looking to get some ideas and possibly where to look. He also said there was a possibility that the oil could come back up the turbo return line and leak out. If anyone has any ideas or knows where or what I should do next, I'd appreciate it a lot!
* Registered users of the site do not see these ads.
2man is offline   Reply With Quote
Old 10-02-2012, 07:28 AM   #2
HinshawWRX
Medium Frank
Moderator
 
Member#: 140114
Join Date: Feb 2007
Chapter/Region: MAIC
Location: Common Sense, VA
Vehicle:
2014 Porsche
GT3 (Currently on Fire)

Default

Turbo oil seals.
HinshawWRX is offline   Reply With Quote
Old 10-02-2012, 11:46 AM   #3
OC_Nooby
Scooby Specialist
 
Member#: 311781
Join Date: Feb 2012
Location: Canada
Vehicle:
2003 WRX w STI V8

Default

If you have oil through your intercooler it could mean 2 things. Turbo seals are bad which I think is whats happening or somehow your pcv system is shooting a crap load of oil through it which then goes into your turbo (not sure how but who knows).

Oil could pass through the turbo seals if you have a restriction in your intake. I doubt it but if the turbo is gasping for air its gonna start leaking through the seals.
OC_Nooby is offline   Reply With Quote
Old 10-02-2012, 01:20 PM   #4
UK-Wagon
Scooby Specialist
 
Member#: 232430
Join Date: Dec 2009
Chapter/Region: RMIC
Location: On the Left side
Vehicle:
555 XTi
1 AW & 1 CGM

Default

Quote:
Originally Posted by HinshawWRX View Post
Turbo oil seals.
Turbos dont have seals! They have gas rings, the only way its going to leak is if he has excessive shaft play. Being the place he took it to said it was minimal, I would have to agree that the turbo is likely just fine.

Op, does the inlet side of the turbo have oil in it? Same goes for the actual turbo inlet. Any oil in there?

If there is, you might want to start checking or replacing the PCV and some of the other related hoses.

Do you have an AOS on this car?
UK-Wagon is offline   Reply With Quote
Old 10-02-2012, 07:54 PM   #5
Blazedskater
Scooby Newbie
 
Member#: 326231
Join Date: Jul 2012
Chapter/Region: MWSOC
Location: Wisconsin
Vehicle:
04 Sti
Silver

Default

i recently replaced my vf39 and while i was installing i kinked the oil out line whiched forced all my incoming oil threw the intake side. i would check for a kink. i idled my car for 2-3 hour to burn it all out, checking my oil and coolant levels constantly. i also got a bottle of mystery oil to help clean out the engine of extra deposits. car runs fine now. also check the shaft for play. but thats where i would start.
Blazedskater is offline   Reply With Quote
Old 10-02-2012, 08:42 PM   #6
2man
Scooby Newbie
 
Member#: 240009
Join Date: Mar 2010
Chapter/Region: TXIC
Location: Denton, Texas
Vehicle:
2005 WRX STi
crystal metallic grey

Default

Quote:
Originally Posted by UK-Wagon View Post
Turbos dont have seals! They have gas rings, the only way its going to leak is if he has excessive shaft play. Being the place he took it to said it was minimal, I would have to agree that the turbo is likely just fine.

Op, does the inlet side of the turbo have oil in it? Same goes for the actual turbo inlet. Any oil in there?

If there is, you might want to start checking or replacing the PCV and some of the other related hoses.

Do you have an AOS on this car?
Sorry to not have included my modifications, but yes! I do have an AOS. I am now in the process of getting a new PCV and will clean out all the oil in the hoses thoroughly. And yes, I noticed some oil in the samco inlet tube. All this seem to have gone wrong coincidentally from an oil change???
2man is offline   Reply With Quote
Old 10-02-2012, 10:35 PM   #7
UK-Wagon
Scooby Specialist
 
Member#: 232430
Join Date: Dec 2009
Chapter/Region: RMIC
Location: On the Left side
Vehicle:
555 XTi
1 AW & 1 CGM

Default

Let me guess..... Grimspeed AOS? Take it off, this is your problem
UK-Wagon is offline   Reply With Quote
Old 10-03-2012, 01:54 AM   #8
2man
Scooby Newbie
 
Member#: 240009
Join Date: Mar 2010
Chapter/Region: TXIC
Location: Denton, Texas
Vehicle:
2005 WRX STi
crystal metallic grey

Default

Quote:
Originally Posted by UK-Wagon View Post
Let me guess..... Grimspeed AOS? Take it off, this is your problem
Thanks. This will be done for sure.
2man is offline   Reply With Quote
Old 10-03-2012, 09:01 PM   #9
guygettnby
Scooby Specialist
 
Member#: 298231
Join Date: Oct 2011
Chapter/Region: MAIC
Location: maryland
Vehicle:
2011 WRX
WRB

Default

Quote:
Originally Posted by UK-Wagon
Let me guess..... Grimspeed AOS? Take it off, this is your problem
Can you please explain what you mean by this post?
guygettnby is offline   Reply With Quote
Old 10-04-2012, 10:00 PM   #10
gurusan
Scooby Newbie
 
Member#: 258165
Join Date: Sep 2010
Chapter/Region: NWIC
Location: Beaverton
Vehicle:
2006 WRX Wagon
WRB

Default

I'm looking for AO separators too, I was considering the Grimmspeed one and would also like some elaboration on why it could be a problem.
gurusan is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 01:52 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.