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Oil in turbo inlet and running lean

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Old Aug 24, 2012 | 12:31 PM
  #11  
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Originally Posted by spectacle
How much shaft play does the turbo have?
Shaft play is still the same as before. Very minimal side to side and no in & out.

Originally Posted by sohc_mshue
The exhaust leak will cause a very lean reading. If closed loop feedback was tuurned on it could have been adding fuel een causing an overly rich condition.
Hopefully a new clamp fixes it.
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Old Aug 24, 2012 | 12:47 PM
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Johnathan, aren't you running open downpipe? Did you hit a speed bump?
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Old Aug 24, 2012 | 03:00 PM
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Originally Posted by herecomesboost
Johnathan, aren't you running open downpipe? Did you hit a speed bump?
Yes, downpipe has scraped a few times on speed bumps and some steep inclines. Most likely why the clamp failed.
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Old Aug 24, 2012 | 05:04 PM
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Originally Posted by s2knoob89
Originally Posted by herecomesboost' timestamp='1345841243' post='21962515
Johnathan, aren't you running open downpipe? Did you hit a speed bump?
Yes, downpipe has scraped a few times on speed bumps and some steep inclines. Most likely why the clamp failed.
I agree.
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Old Sep 11, 2012 | 08:15 AM
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So I finally get a call from Precision after waiting for almost 2 weeks! I actually spoke with the guy that took the turbo apart so I thought that was cool. He said "the turbo looked like it was getting shutdown hot" . He asked if I was using a turbo blanket, which I am. He said "the blanket is holding in too much heat and basically cooking the oil after shutdown."

He didn't say anything about too much oil pressure. He did say it had alot of oil build up in the exhaust side. So pretty much I need to lose the blanket and get the exhaust side ceramic coated ( He said this was fine). Everything is going to be covered under warranty so I'm pretty happy about that.

Anybody else ever heard of a blanket holding in too much heat? The blanket isn't covering the center section so I don't really know if that's what caused it. Maybe the high oil pressure was just pushing oil past the seals and thats why he came to that conclusion?
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Old Sep 11, 2012 | 08:34 AM
  #16  
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Originally Posted by s2knoob89
So I finally get a call from Precision after waiting for almost 2 weeks! I actually spoke with the guy that took the turbo apart so I thought that was cool. He said "the turbo looked like it was getting shutdown hot" . He asked if I was using a turbo blanket, which I am. He said "the blanket is holding in too much heat and basically cooking the oil after shutdown."

He didn't say anything about too much oil pressure. He did say it had alot of oil build up in the exhaust side. So pretty much I need to lose the blanket and get the exhaust side ceramic coated ( He said this was fine). Everything is going to be covered under warranty so I'm pretty happy about that.

Anybody else ever heard of a blanket holding in too much heat? The blanket isn't covering the center section so I don't really know if that's what caused it. Maybe the high oil pressure was just pushing oil past the seals and thats why he came to that conclusion?
That would be my guess as well, since you weren't previously running a restrictor. Otherwise, your turbo looked okay though?
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Old Sep 11, 2012 | 08:42 AM
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Originally Posted by s2knoob89
Anybody else ever heard of a blanket holding in too much heat?
Not no, but hell no.
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Old Sep 11, 2012 | 09:38 AM
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Originally Posted by herecomesboost
Originally Posted by s2knoob89' timestamp='1347380154' post='22003890
So I finally get a call from Precision after waiting for almost 2 weeks! I actually spoke with the guy that took the turbo apart so I thought that was cool. He said "the turbo looked like it was getting shutdown hot" . He asked if I was using a turbo blanket, which I am. He said "the blanket is holding in too much heat and basically cooking the oil after shutdown."He didn't say anything about too much oil pressure. He did say it had alot of oil build up in the exhaust side. So pretty much I need to lose the blanket and get the exhaust side ceramic coated ( He said this was fine). Everything is going to be covered under warranty so I'm pretty happy about that. Anybody else ever heard of a blanket holding in too much heat? The blanket isn't covering the center section so I don't really know if that's what caused it. Maybe the high oil pressure was just pushing oil past the seals and thats why he came to that conclusion?
That would be my guess as well, since you weren't previously running a restrictor. Otherwise, your turbo looked okay though?
It was fine aside from oil leaking out. He said if I continued to run the turbo it would begin to have premature wear on the bearing.

Originally Posted by spectacle
Originally Posted by s2knoob89' timestamp='1347380154' post='22003890
Anybody else ever heard of a blanket holding in too much heat?
Not no, but hell no.
It kinda makes a little sense. I may be switching over to a stainless shield and ceramic coat the housing. Will do more research on it first though.
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Old Sep 11, 2012 | 03:11 PM
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The blanket is surely a problem to SOME degree on every setup. Coking is only going to be worsened by a blanket as the snail is held hotter thus the cartridge is too. Without a restrictor I'd be amazed to not see oil blowing by the "seal" (it's not a seal really) in this setup.

You can/should keep your blanket for sure, just let your car idle for a bit before you shut it down daily. I give myself 30 seconds generally and have never had a problem after looking at the turbo 3 times for inspection. If you're not water cooled I'd give another 60 seconds on top of that if you were on the throttle hard. If I'm not hardly on the throttle at all I just give 10 seconds.

-Greg
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Old Sep 16, 2012 | 10:43 AM
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So WTF! Got the car all put back together this morning and went for a test drive. Now it feels like its cutting out when accelerating lightly and sometimes at idle it sounds like its missing. Both of these happen intermittently.

All the injectors are working and the AFR is normal. I pulled the plugs and the tips on all of them were perfect. The plug in cylinder #2 had what looked like oil or fuel on the threads, this was the only plug like this. I'm going to replace the plugs tomorrow and see if that works but I'm thinking it may be a bad coil.

Shit is starting to piss me off lol. I wanna drive!
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