Welcome to the North American Subaru Impreza Owners Club Thursday January 29, 2015
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 > Built Motor Discussion

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 05-17-2010, 07:48 PM   #1
IGotMeThis
Scooby Newbie
 
Member#: 240098
Join Date: Mar 2010
Chapter/Region: Tri-State
Vehicle:
1999 Boosted Legacy
Silver

Default HELP!!! Turbo blowing oil

Okay .... so i have a 1999 subaru legacy with a ej257 block and NA ej25d heads and my problem is i am on my 3rd turbo and i blow oil pass the seals my TD04L turbo ... i have a -4an stainless steel inlet non restricted ... a 5/8 rubber outlet hose to the oil pan and longest ive had a working turbo was 3 weeks and then one day blue smoke from the compressor blowing oil and on the exhaust side blowing whipped whitish in color oil ... i have done mostly everything but restrict the lines any ideas?
* Registered users of the site do not see these ads.

Last edited by IGotMeThis; 05-17-2010 at 11:03 PM. Reason: Friend typed a typo
IGotMeThis is offline   Reply With Quote
Old 05-17-2010, 08:06 PM   #2
reddevil
Scooby Guru
 
Member#: 64673
Join Date: Jun 2004
Chapter/Region: NWIC
Location: portland
Vehicle:
1990 Legacy wagon
goes 12.387 @ 116.5

Default

restrict the lines.
reddevil is offline   Reply With Quote
Old 05-17-2010, 10:28 PM   #3
IGotMeThis
Scooby Newbie
 
Member#: 240098
Join Date: Mar 2010
Chapter/Region: Tri-State
Vehicle:
1999 Boosted Legacy
Silver

Default

any ideas what size restrictor?
or where i could find one

Last edited by IGotMeThis; 05-17-2010 at 10:28 PM. Reason: i dont know
IGotMeThis is offline   Reply With Quote
Old 05-18-2010, 11:27 PM   #4
soobaviator
NASIOC Supporter
 
Member#: 115070
Join Date: May 2006
Chapter/Region: MAIC
Location: Northern VA
Vehicle:
2009 DGM LGT Spec.B
08 Audi Q7 4.2 PRM

Default

What oil and what oil pressure are you seeing? If you are blowing oil past seals either the seals are defective, there is not enough oil flow, or the pressure is way too high. Normally don't see seal failures on regular TD04 turbos and they don't need restrictors. VF journal bearing turbos are much more likely to run through seals in "normal" use.

A restrictor is going to lower oil the flow and increase the bearing temps... You are going the wrong way i think.



-soobaviator
soobaviator is offline   Reply With Quote
Old 05-19-2010, 02:59 AM   #5
IGotMeThis
Scooby Newbie
 
Member#: 240098
Join Date: Mar 2010
Chapter/Region: Tri-State
Vehicle:
1999 Boosted Legacy
Silver

Default

i am usen 10-30 and i do not kno my oil pressure due to no gauge yet but i have a oil pump go to 7000rom so around 71psi at 7000rpm is when i beat on it which ive yet to do but at 2.5k it starts blowing oil so bad seals?
IGotMeThis is offline   Reply With Quote
Old 05-19-2010, 09:29 AM   #6
soobaviator
NASIOC Supporter
 
Member#: 115070
Join Date: May 2006
Chapter/Region: MAIC
Location: Northern VA
Vehicle:
2009 DGM LGT Spec.B
08 Audi Q7 4.2 PRM

Default

So if I understand correctly you have had two other turbos with the same issue?

The actual orifices that send oil to the bearings are very small and perfectly fine for the pressure you are running. Are you sure there is no restriction on the drain side? What about crankcase pressure, have you done a compression and leak down test on the engine?

If oil is coming out of the turbo then the seals are done and need to be replaced. This is an inexpensive fix on a TD04 turbo if that's all that is wrong with it.

Check the motor coondition to make sure you don't have high crankcase pressure that's keeping oil in the turbo too long.
soobaviator is offline   Reply With Quote
Old 05-19-2010, 07:27 PM   #7
IGotMeThis
Scooby Newbie
 
Member#: 240098
Join Date: Mar 2010
Chapter/Region: Tri-State
Vehicle:
1999 Boosted Legacy
Silver

Default

i have 2 other turbos but their for my other car and i know they have bad seals. but this one i think it does because it never held oil but im thinking it was my motor not my turbo. what would you consider high pressure? and ill check everything else
IGotMeThis is offline   Reply With Quote
Old 05-19-2010, 09:33 PM   #8
Fongers
Scooby Specialist
 
Member#: 118239
Join Date: Jun 2006
Chapter/Region: SCIC
Location: Beijing and Venice Beach
Vehicle:
2002 Built Wagon
Wife- 2004 Outback SE

Default

Wait, I think I remeber the TD04 having the restictor built into the banjo bolt on the top. Could just be forgetting but I'm pretty sure I remeber it there so you might still need one?

Quote:
Originally Posted by soobaviator View Post
What oil and what oil pressure are you seeing? If you are blowing oil past seals either the seals are defective, there is not enough oil flow, or the pressure is way too high. Normally don't see seal failures on regular TD04 turbos and they don't need restrictors. VF journal bearing turbos are much more likely to run through seals in "normal" use.

A restrictor is going to lower oil the flow and increase the bearing temps... You are going the wrong way i think.



-soobaviator
Fongers is offline   Reply With Quote
Old 05-20-2010, 10:35 AM   #9
soobaviator
NASIOC Supporter
 
Member#: 115070
Join Date: May 2006
Chapter/Region: MAIC
Location: Northern VA
Vehicle:
2009 DGM LGT Spec.B
08 Audi Q7 4.2 PRM

Default

Quote:
Originally Posted by Fongers View Post
Wait, I think I remeber the TD04 having the restictor built into the banjo bolt on the top. Could just be forgetting but I'm pretty sure I remeber it there so you might still need one?
Possibly so I'm going to check it as I have a bunch of old banjo bolts sitting around somwhere. When I build turbos I use an oil and water line kit with SS oil lines and new banjo fittings. I've done dozens of them with no issues with oil seals on freshly rebuilt turbos. I'll look at it and post up some pics to compare.

Even so it's not like he's running a BB turbo that needs very little oil. I believe something may be going on where the oil is not getting out of the center housing easily enough.

There's not a real practical way to test crankcase pressure and I have no idea what the pressure in the crankcase should be. You need to check cylinder compression and that will tell you if you have a potential excessive blow-by issue that could be contributing to the problems you are having.
soobaviator is offline   Reply With Quote
Old 05-20-2010, 12:29 PM   #10
IGotMeThis
Scooby Newbie
 
Member#: 240098
Join Date: Mar 2010
Chapter/Region: Tri-State
Vehicle:
1999 Boosted Legacy
Silver

Default

okay ill look and check for the obvious like gas in the oil and stuff like that i do not have a compression tester but my friend does so i will borrow his and ill post up.
IGotMeThis is offline   Reply With Quote
Old 05-20-2010, 07:34 PM   #11
Dutch Scooby lover
Scooby Specialist
 
Member#: 32452
Join Date: Feb 2003
Location: The Netherlands
Vehicle:
1998 Impreza Turbo
74F FTW

Default

The td04 uses a restrictor inside the banjo bolt.
I am willing to bet you are blowing out the seals because of too high an oil pressure.
Dutch Scooby lover is offline   Reply With Quote
Old 05-20-2010, 08:07 PM   #12
IGotMeThis
Scooby Newbie
 
Member#: 240098
Join Date: Mar 2010
Chapter/Region: Tri-State
Vehicle:
1999 Boosted Legacy
Silver

Default

when cold start up i do not have any blue smoke come out after i cleaned my intake out and my intercooler due to them being fulled with oil
i just put a lesser oil squirter turbo on with a nos jet as a restrictor and it seems like im burning oil still but i am willing to bet thats just all in my exhaust
i am going to try a weird idea i got from my dad and go to home depot get a clear vinyl 5/8's line and run that as my return line and see if it is backing up or anything (not my permanent line just to see run cold to warmed up due to that fact it will melt)
IGotMeThis is offline   Reply With Quote
Old 05-25-2010, 10:21 PM   #13
soobaviator
NASIOC Supporter
 
Member#: 115070
Join Date: May 2006
Chapter/Region: MAIC
Location: Northern VA
Vehicle:
2009 DGM LGT Spec.B
08 Audi Q7 4.2 PRM

Default

I guess it's semantics but I never thought of the TD04 having a 'restrictor' in the banjo bolt. I have always thought of the bolt as having a metered orifice. Call it what you like here are some pics of the banjo bolts I have used on many many turbos without issue.





Last edited by soobaviator; 07-06-2011 at 09:10 AM.
soobaviator is offline   Reply With Quote
Old 05-26-2010, 01:15 AM   #14
IGotMeThis
Scooby Newbie
 
Member#: 240098
Join Date: Mar 2010
Chapter/Region: Tri-State
Vehicle:
1999 Boosted Legacy
Silver

Default

i dont know i know now im not burning any oil with the restrictor im pretty sure it is due to the fact that i have a 2.0 turbo on a 2.5 block and the pressure differences

and i have that exact bolt in their

Last edited by IGotMeThis; 05-26-2010 at 01:16 AM. Reason: just forgot
IGotMeThis is offline   Reply With Quote
Old 05-26-2010, 01:17 AM   #15
Dutch Scooby lover
Scooby Specialist
 
Member#: 32452
Join Date: Feb 2003
Location: The Netherlands
Vehicle:
1998 Impreza Turbo
74F FTW

Default

Isn't that the same.
Restrictor = a metered orifice

If you get a bolt from a hardware store with the same thread/pitch the hole is much larger, so I believe the bolt is important for the functioning of the turbo.
All turbo's (non-BB)that I ever bought came with new lines, but all re-used the stock bolt.
Dutch Scooby lover is offline   Reply With Quote
Old 05-27-2010, 01:58 AM   #16
IGotMeThis
Scooby Newbie
 
Member#: 240098
Join Date: Mar 2010
Chapter/Region: Tri-State
Vehicle:
1999 Boosted Legacy
Silver

Default

Well i took my turbo back exhaust off and ran alcohol thru it to kill my oil infection and now im not burning any oil with a restrictor and -4an lines and stock bolt
IGotMeThis is offline   Reply With Quote
Old 10-05-2010, 03:54 PM   #17
Brou4164
Scooby Newbie
 
Member#: 247046
Join Date: May 2010
Location: Coppell, TX
Vehicle:
2008 LegacyGT spec.B
Grey

Default

Bump for exact solutions.

I've got 08 LGT spec. B with:
FP Green HTA (less than 2k miles, 3.0" inlet, supporting FP free-flow oil line)
Crawford Catch Can
Stock Block
Perrin Up/Mid/Down-Pipes
Perrin FMIC
TiAL 44mm Wastegate (Replaced same time as FPGreen HTA)
Perrin BOV
TGV deletes
PCV reinstalled (under guidance from Forced Performance 500mi ago)
Cat deletes
Royal Purple 15w40
AquaMist HFS-5
New spark plugs (installed under 1k miles ago)
Carbon clean service
Compression Leakdown test done: 0%

I'm losing 1qt every 300 miles. Smoke under heavy acceleration & then when I let off.

I've been advised that it's a crankcase pressure problem, but it hasn't changed with the reinstall of the PCV.

I don't know where else to look, I'm not getting any solutions.

Hope someone on here can give me guidance!
Brou4164 is offline   Reply With Quote
Old 10-05-2010, 10:39 PM   #18
TheLadiesMan
Scooby Newbie
 
Member#: 98674
Join Date: Oct 2005
Chapter/Region: Tri-State
Location: New Jersey
Vehicle:
2005 WRX STi
'03 Mustang Mach 1

Default

Do a compression test.

When I had this issue my rings/ringlands were blown.

Quote:
Originally Posted by Brou4164 View Post
Compression Leakdown test done: 0%
Im not sure if that means you haven't done it or you did it and it was 0%.. which I'm not sure how thats a measurement of compression :P

Last edited by TheLadiesMan; 10-05-2010 at 10:49 PM.
TheLadiesMan is offline   Reply With Quote
Old 12-01-2010, 11:16 AM   #19
Brou4164
Scooby Newbie
 
Member#: 247046
Join Date: May 2010
Location: Coppell, TX
Vehicle:
2008 LegacyGT spec.B
Grey

Default

Compression was "new car" level according to the mechanic, thus 0% problem there. He did both cold & hot compression tests.

I'm looking for actual advice please, not just useless comments....
Brou4164 is offline   Reply With Quote
Old 12-01-2010, 12:00 PM   #20
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

ok, did you have a leakdown (%) or compression (psi or some form of pressure) test done?

It sounds like a ringland or turbine oil seal issue from what you're saying. Neither of which would be right if you test value is true and the turbo is new and healthy.

0% leakdown is rather impressive considering the stock block and the mods you have. I want to call BS on the mechanic doing his job properly or at all.

1qt/300 miles is way too much for a leaky valve seal(s) if you ask me.

When did your oil consumption show up? before or after the turbo install? When was the compression or leakdown test done?

P.S. Why such heavy weight oil for a stock engine?
Homemade WRX is online now   Reply With Quote
Old 12-01-2010, 02:40 PM   #21
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

Default

What oil pump, and/or oil pump modifications are you using?
KillerBMotorsport is online now   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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help!!! Turbo keeps blowing up! stang95 Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 25 10-06-2007 12:36 AM
help..Turbo Oil Leak? 1VIPWRX Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 3 05-10-2006 08:25 PM
2.0L Turbo OEM Oil Filter Help sunder74 Service & Maintenance 3 11-06-2005 06:03 PM
PROBLEM NEED HELP Turbo XS H-RFl Blow-off Install on 05 STI TimL Engine Management & Tuning 8 10-12-2004 10:56 AM
blowing oil through a turbo? milkman Normally Aspirated with bolt-on Forced Induction Powertrain 20 06-25-2002 07:29 PM


All times are GMT -4. The time now is 12:30 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.