Why is my turbo leaking from here? (pics) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

KeithDigital · 11-24-2009, 04:47 PM

Stock turbo. Very slow leak. Not really sure where it's coming from but it looks like where the turbine housing meets the center part?

Sileighty_85 · 11-24-2009, 05:36 PM

well its either leaking from the oil return or the oil feed line up top

im pretty sure that oil would be cooked if it was leaking inside

Def · 11-24-2009, 09:32 PM

99% of the time when you see that you've got excessive blowby, and your compressor housing is basically filled with oil. Take off the intake pipe to the turbo and I bet it's absolutely coated in oil.

Your rings might be going, causing excessive blowby.

cotbu · 11-25-2009, 12:26 AM

First you need to determine exactly were the leak is coming from. You still have hard lines, maybe it's cracked, Or maybe it's a drainage problem. Or check the compressor inlet and outlets for oil, wouldn't bother with the exhaust housing, since you didn't mention any smoke. I'm sure the engine bay smokes a little.

J90lude · 11-25-2009, 12:51 AM

That definitely looks like a crack to me!

Walperstyle · 11-25-2009, 03:07 AM

lol just take apart the turbo and find out

KeithDigital · 11-25-2009, 06:40 AM

I'll take a look at the intake, but I know the turbo has that huge elbow on it, may not be able to see anything? Also if there was oil in it, wouldn't you think it would be a bad turbo seal - rather then the piston rings?

I will try to do a compression test - that should let me know about the rings.

I know the oil return line is good, the oil feed line - I will have to take off the heat shield to look at.

Take the turbo appart...lol, that is my last resort.

I'll work on this during the weekend, and let you guys know what happens, thanks for the great ideas.

S13 curtis · 11-25-2009, 07:34 AM

damn, i would help u if i was back home.

KeithDigital · 11-25-2009, 01:02 PM

Quote:

Originally Posted by S13 curtis

damn, i would help u if i was back home.

Thanks Curtis - if I don't' take too many things apart, I'll be at the Arbys meet on Sunday.

KeithDigital · 01-13-2010, 04:17 PM

Well I decided to take the turbo off since I had an exhaust manifold leak anyway. I was hoping this oil leak was from the Oil Feed Line - maybe loose or broken, but the Oil Feed Line looks good. Why is my turbo leaking from here?!! The compressor and turbine wheels look normal - no sign of oil leaking/burning.

Chernobyl · 01-13-2010, 04:20 PM

Is there oil residue in the downpipe?

Most likely, the seals inside the turbo are bad.

Rabboni · 01-13-2010, 04:41 PM

Im just gonna say that you probably need to rebuild the turbo. There are a lot things that could cause the seals to go bad, but to make sure it doesnt happen again make sure the oil return line is unobstructed, there isnt any excessive blowby (leakdown test is ideal), and that there isnt any shaft end play.

KeithDigital · 02-06-2010, 06:19 PM

I found out the previous owner had some rigged up oil line and ran full oil pressure to this turbo.... You are suppose to have a restrictor of 0.06" or use the factory banjo bolt. So pissed this turbo is mint looking and now I have to rebuild or replace it. I was told there is a slight chance the turbo could be ok if put the factory banjo bolt back on, but not sure I am going to chance it.

*fliprayzin240sx* · 02-06-2010, 07:45 PM

Is it a stock turbo? You dont need a restrictor for stock journal bearing turbos.

S13 curtis · 02-06-2010, 08:54 PM

Quote:

Originally Posted by KeithDigital

I found out the previous owner had some rigged up oil line and ran full oil pressure to this turbo.... You are suppose to have a restrictor of 0.06" or use the factory banjo bolt. So pissed this turbo is mint looking and now I have to rebuild or replace it. I was told there is a slight chance the turbo could be ok if put the factory banjo bolt back on, but not sure I am going to chance it.

get a T28 you will like it alot better if you got the money.

Def · 02-06-2010, 09:06 PM

Quote:

Originally Posted by fliprayzin240sx

Is it a stock turbo? You dont need a restrictor for stock journal bearing turbos.

Yes, you do. You need a restrictor for *ALL* turbos.

The stock oil feed banjo bolt has a ~0.06" hole in it to reduce pressure to the turbo CHRA.

A BB CHRA turbo needs a ~0.030" restrictor.

KeithDigital · 02-06-2010, 09:55 PM

Quote:

Originally Posted by Def

Yes, you do. You need a restrictor for *ALL* turbos.

The stock oil feed banjo bolt has a ~0.06" hole in it to reduce pressure to the turbo CHRA.

A BB CHRA turbo needs a ~0.030" restrictor.

Exactly! 100% correct.

s13 drifta · 03-16-2010, 12:38 PM

I have the same oil leak, mine is comming from the oil feed banjo bolt because the copper crush washers need to be replaced. Im just getting steel braided lines, hardlines are a pain in the ass.

KeithDigital · 03-16-2010, 04:09 PM

It's leaking where the oil line comes out of the block? If so, just unbolt the banjo bolt slap 2 new crush washers on - Nissan Part# 15193-P9000 (order two of them) and be done with it. If you install the steel braided lines you'll need to take your manifold and turbo off! Way too much work

s13 drifta · 03-17-2010, 10:57 AM

Nope, its leaking from the turbo. I have to pull the turbo and mani off anyways to install new washers. I already bought goodridge lines, I hate hardlines.

KeithDigital · 03-17-2010, 03:09 PM

There are no washers on the turbo side of the oil line, check it out:

I doubt it's leaking from there.

I hate hardlines too!

MavericStephenc · 03-20-2010, 11:39 PM

any updates on this?

spooled240 · 03-21-2010, 12:06 AM

i had a turbo that leaked from there but it had no shaft play and it spooled fine, just made a mess =/

I just replaced the whole unit cuz I ended up snapping the shaft turning the shaft nut counterclockwise to loosen it (it's reverse thread) but when i took the turbo apart it looked like it was leaking from a seal at the end of the CHRA, so it's probably not too hard to replace you would just need the turbo VSR re-balanced.

KeithDigital · 03-21-2010, 07:26 AM

Quote:

Originally Posted by MavericStephenc

any updates on this?

The previous owner had some rigged up oil line and ran full oil pressure

to this turbo and I assume this blew a seal. spooled240 sounds exactly my turbo. Spools great and no shaft play, just leaky and messy. I ended up replacing my turbo with another one.

MavericStephenc · 03-22-2010, 01:58 PM

Werd O_o sounds good

11-24-2009, 04:47 PM	#1
KeithDigital Leaky Injector Join Date: Apr 2009 Location: Orlando, FL Posts: 69 Trader Rating: (1) Feedback Score: 1 reviews	Why is my turbo leaking from here? (pics) Stock turbo. Very slow leak. Not really sure where it's coming from but it looks like where the turbine housing meets the center part?

11-24-2009, 05:36 PM	#2
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	well its either leaking from the oil return or the oil feed line up top im pretty sure that oil would be cooked if it was leaking inside __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

11-24-2009, 09:32 PM	#3
Def Post Whore! Join Date: Apr 2004 Location: Houston, TX Posts: 2,701 Trader Rating: (16) Feedback Score: 16 reviews	99% of the time when you see that you've got excessive blowby, and your compressor housing is basically filled with oil. Take off the intake pipe to the turbo and I bet it's absolutely coated in oil. Your rings might be going, causing excessive blowby. __________________ S13 Hatch - Goes around tracks quickly DEFSPORT

11-25-2009, 12:26 AM	#4
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	First you need to determine exactly were the leak is coming from. You still have hard lines, maybe it's cracked, Or maybe it's a drainage problem. Or check the compressor inlet and outlets for oil, wouldn't bother with the exhaust housing, since you didn't mention any smoke. I'm sure the engine bay smokes a little. __________________ LoverTechnologies "Half Broken Things!"

11-25-2009, 12:51 AM	#5
J90lude Zilvia Junkie Join Date: May 2008 Location: MD-VA/DC area Age: 37 Posts: 384 Trader Rating: (0) Feedback Score: 0 reviews	That definitely looks like a crack to me! __________________ "Drive it like you running from the cops"

11-25-2009, 03:07 AM	#6
Walperstyle Nissanaholic! Join Date: Nov 2004 Location: Alberta, Red Derp Age: 44 Posts: 1,729 Trader Rating: (0) Feedback Score: 0 reviews	lol just take apart the turbo and find out __________________ KA-T ORG-Function over Flush

11-25-2009, 06:40 AM	#7
KeithDigital Leaky Injector Join Date: Apr 2009 Location: Orlando, FL Posts: 69 Trader Rating: (1) Feedback Score: 1 reviews	I'll take a look at the intake, but I know the turbo has that huge elbow on it, may not be able to see anything? Also if there was oil in it, wouldn't you think it would be a bad turbo seal - rather then the piston rings? I will try to do a compression test - that should let me know about the rings. I know the oil return line is good, the oil feed line - I will have to take off the heat shield to look at. Take the turbo appart...lol, that is my last resort. I'll work on this during the weekend, and let you guys know what happens, thanks for the great ideas.

11-25-2009, 07:34 AM	#8
S13 curtis Zilvia Addict Join Date: Jun 2008 Location: Orlando,FL Age: 34 Posts: 651 Trader Rating: (13) Feedback Score: 13 reviews	damn, i would help u if i was back home.

01-13-2010, 04:17 PM	#10
KeithDigital Leaky Injector Join Date: Apr 2009 Location: Orlando, FL Posts: 69 Trader Rating: (1) Feedback Score: 1 reviews	Well I decided to take the turbo off since I had an exhaust manifold leak anyway. I was hoping this oil leak was from the Oil Feed Line - maybe loose or broken, but the Oil Feed Line looks good. Why is my turbo leaking from here?!! The compressor and turbine wheels look normal - no sign of oil leaking/burning.

01-13-2010, 04:20 PM	#11
Chernobyl Zilvia FREAK! Join Date: May 2003 Location: Denver, CO Age: 42 Posts: 1,563 Trader Rating: (6) Feedback Score: 6 reviews	Is there oil residue in the downpipe? Most likely, the seals inside the turbo are bad.

01-13-2010, 04:41 PM	#12
Rabboni Zilvia Member Join Date: Aug 2009 Location: Fairfield, CA Posts: 230 Trader Rating: (0) Feedback Score: 0 reviews	Im just gonna say that you probably need to rebuild the turbo. There are a lot things that could cause the seals to go bad, but to make sure it doesnt happen again make sure the oil return line is unobstructed, there isnt any excessive blowby (leakdown test is ideal), and that there isnt any shaft end play. __________________ Baling Wire-The Duct Tape Of Champions

02-06-2010, 06:19 PM	#13
KeithDigital Leaky Injector Join Date: Apr 2009 Location: Orlando, FL Posts: 69 Trader Rating: (1) Feedback Score: 1 reviews	I found out the previous owner had some rigged up oil line and ran full oil pressure to this turbo.... You are suppose to have a restrictor of 0.06" or use the factory banjo bolt. So pissed this turbo is mint looking and now I have to rebuild or replace it. I was told there is a slight chance the turbo could be ok if put the factory banjo bolt back on, but not sure I am going to chance it.

02-06-2010, 07:45 PM	#14
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Is it a stock turbo? You dont need a restrictor for stock journal bearing turbos. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

03-16-2010, 12:38 PM	#18
s13 drifta Post Whore! Join Date: Aug 2006 Location: Gardnerville,NV Posts: 2,515 Trader Rating: (105) Feedback Score: 105 reviews	I have the same oil leak, mine is comming from the oil feed banjo bolt because the copper crush washers need to be replaced. Im just getting steel braided lines, hardlines are a pain in the ass. __________________ PM me for s13 or s14 parts!

03-16-2010, 04:09 PM	#19
KeithDigital Leaky Injector Join Date: Apr 2009 Location: Orlando, FL Posts: 69 Trader Rating: (1) Feedback Score: 1 reviews	It's leaking where the oil line comes out of the block? If so, just unbolt the banjo bolt slap 2 new crush washers on - Nissan Part# 15193-P9000 (order two of them) and be done with it. If you install the steel braided lines you'll need to take your manifold and turbo off! Way too much work

03-17-2010, 10:57 AM	#20
s13 drifta Post Whore! Join Date: Aug 2006 Location: Gardnerville,NV Posts: 2,515 Trader Rating: (105) Feedback Score: 105 reviews	Nope, its leaking from the turbo. I have to pull the turbo and mani off anyways to install new washers. I already bought goodridge lines, I hate hardlines. __________________ PM me for s13 or s14 parts!

03-17-2010, 03:09 PM	#21
KeithDigital Leaky Injector Join Date: Apr 2009 Location: Orlando, FL Posts: 69 Trader Rating: (1) Feedback Score: 1 reviews	There are no washers on the turbo side of the oil line, check it out: I doubt it's leaking from there. I hate hardlines too!

03-20-2010, 11:39 PM	#22
MavericStephenc Zilvia Addict Join Date: Aug 2006 Location: salem mass. Age: 37 Posts: 830 Trader Rating: (0) Feedback Score: 0 reviews	any updates on this? __________________ That kind of attitude is SHIT. People with that kind of complacent outlook on law and government are the bane of this country's existence. -Thesquidd Boycott Berkeley and code pink

03-21-2010, 12:06 AM	#23
spooled240 Post Whore! Join Date: Mar 2008 Location: San Diego, CA Posts: 4,203 Trader Rating: (27) Feedback Score: 27 reviews	i had a turbo that leaked from there but it had no shaft play and it spooled fine, just made a mess =/ I just replaced the whole unit cuz I ended up snapping the shaft turning the shaft nut counterclockwise to loosen it (it's reverse thread) but when i took the turbo apart it looked like it was leaking from a seal at the end of the CHRA, so it's probably not too hard to replace you would just need the turbo VSR re-balanced.

03-22-2010, 01:58 PM	#25
MavericStephenc Zilvia Addict Join Date: Aug 2006 Location: salem mass. Age: 37 Posts: 830 Trader Rating: (0) Feedback Score: 0 reviews	Werd O_o sounds good __________________ That kind of attitude is SHIT. People with that kind of complacent outlook on law and government are the bane of this country's existence. -Thesquidd Boycott Berkeley and code pink