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Turbo gone bad? Diagnosis question. Pics!

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Old Apr 10, 2007 | 07:34 PM
  #16  
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From: Atlanta, GA
Originally Posted by kmcconn9
It very well could be the turbo, and since you already have it apart why not swap it out. I would just hate to see you clean all of those parts out of oil and then have the same thing happen again in the very near future.

The problem I had resulted in no oil in the exhaust runners, basically none in the intake except for in the inlet of the turbo, and a bunch in the exhaust and IC pipes.

Good luck with the project, the fmic cleaning is not fun, especially if you have to do it twice.

Honestly, I would put the pcv valve going straight back into the intake manifold for the time being. Although then you wont know what caused the problem, but you would stand a better chance against getting oil all thoughout your pipes again.

Dont trash that spare turbo just yet...
If you are doing a catch can setup, the pcv valve should be between the intake manifold and catch can, properly oriented so it closes under boost. That way it cant pressurize the catch can. You also need a second can ( or catch can w dual inputs works ) for the valve cover vent to the turbo inlet. That should not have any valves in it, that way the system mimics the stock airflow pattern, yet traps the oil vapors and mist. If you are using a dual input catch can ( single can with dual inputs ) it must not have any pressure buildup in it. The stock pcv valve must go between the intake manifold and one side of the catch can.

Also make sure the pcv valve holds pressure, new ones are cheap insurance from blowing tons of oil into the turbo inlet tract.

milburn
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Old Apr 10, 2007 | 09:44 PM
  #17  
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I say send the 05 turbo into FP and get yourself the Evo Green. My god that turbo is wicked awesome cool man! I think I am getting 9mpg since I installed it, since I cant keep my foot of the pedal now. *sigh* I think I need to go for a drive, back in a few....
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Old Apr 10, 2007 | 11:30 PM
  #18  
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Turbine oil seal has gone.

It not rocket science to rebuild the turbo. just by the seal rebuild kit. Replace the seals- get the turbo balanced and off you go.
It took me around 1/2 hr, once I removed the turbo from the car, to replace the seals- no more smoke on decel.

It will happen to all turbos at some time or another and is so easy and cheap ($100) to do.

As you already have the turbo apart- you have done half the work!
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Old Apr 11, 2007 | 07:24 AM
  #19  
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Originally Posted by monsta
Turbine oil seal has gone.

It not rocket science to rebuild the turbo. just by the seal rebuild kit. Replace the seals- get the turbo balanced and off you go.
It took me around 1/2 hr, once I removed the turbo from the car, to replace the seals- no more smoke on decel.

It will happen to all turbos at some time or another and is so easy and cheap ($100) to do.

As you already have the turbo apart- you have done half the work!
Where do I get one of these seal kits? Also, where can I get a c-clip spreader big enough to get the intake side off?
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Old Apr 11, 2007 | 02:18 PM
  #20  
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wow i had this exact thing happen to me yesterday exact same situation. Wondering if you know if its the pvc or the turbo im also on the stock one.

the pvc is the one on the back left of the valve cover when facing the motor correct?

evoisdream
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Old Apr 11, 2007 | 07:38 PM
  #21  
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From: Portland, OR
You can get most replacement parts direct from Forced Performances web page.

http://store.forcedperformance.net/m...de=Turbo-Parts

Call them before you order anything though to ensure you are getting the right stuff. Robert, at FP, is extremely helpful!
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Old Apr 11, 2007 | 07:48 PM
  #22  
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I had this happen to me on a very cold day. The car was smoking bad. I found that the oil catch can hoses had condensation that froze and plugged up the hoses which caused excessive crankcase pressure. Oil was being pumped into the intake manifold and then being burned off. I pulled over immedietly and took the catch can out of the loop. It then stopped smoking.
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Old Apr 12, 2007 | 12:16 AM
  #23  
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how would you know for sure it was the turbo and not the pcv etc? if you pulled it what would be a sign or what to look for?
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Old Apr 12, 2007 | 06:45 AM
  #24  
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Good thing you have a good friend that sold you that spare turbo for cheap! Sorry to here bout the problems!
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Old Apr 12, 2007 | 06:46 AM
  #25  
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Originally Posted by WaxThis2005
Good thing you have a good friend that sold you that spare turbo for cheap! Sorry to here bout the problems!
I was lucky.

Last edited by Fireball; Apr 17, 2007 at 12:26 PM.
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Old Apr 14, 2007 | 04:17 PM
  #26  
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From: digging for oil
to much boost for the type of turbocharger you are running,, you blew the seals,, need to get a bigger turbocharger or ease on the psi levels
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Old Apr 17, 2007 | 12:28 PM
  #27  
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The saga continues...

Took it to the track last weekend with the replacement turbo and had another big problem...

I blew the dipstick out and sprayed oil all over the place. Cleaned it up, and went back out, came in with a smoking car and still had oil all over the place, but not from the dipstick this time. Took a bunch more runs to figure out where it was coming from and it seems it was blowing out of the oil fill cap on the top of the valve cover.

The only thing that I can figure out is that I'm not venting enough of the pressure fast enough and causing some serious crankcase pressure.

With enough crankcase pressure, it would have driven the oil back up the oil drain from the turbo and forced it out the easiest path, the oil seals on the turbo... I may have not blown the turbo afterall.

I'm creating new paths for venting, and it should not be a problem anymore... we'll have to see after some testing.

Any other comments?
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Old Apr 17, 2007 | 12:39 PM
  #28  
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Last car that made that kinda mess all over itself, it's windshield and dyno from popping the dipstick ended up having a bad ring. Do a leak down test.
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Old Apr 17, 2007 | 12:46 PM
  #29  
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and u said the comp.test was good cause it sound like a piston ring...
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Old Apr 17, 2007 | 12:50 PM
  #30  
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Originally Posted by bluebyu36
and u said the comp.test was good cause it sound like a piston ring...
leak down test will show a bad ring better than a comp test.
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