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How do I quickly block off S4 Tii OMP?

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Old 02-17-05, 11:41 PM
  #26  
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it's taken in during whenever the rotor's compression area expands to pull it in... which is NOT when air is entering the rotor...
Old 02-17-05, 11:52 PM
  #27  
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I think you have a problem with the compressor side of your turbo. Pull the turbo inlet duct off and look for lots of oil. If it is there, then to prove it's the turbo, pull the line off that silver check valve in the backend of your turbo inlet duct (leave the checkvalve itself inplace) and then dry up the oil residue. Drive the car. If it still smokes after an hour or so, go back and look for oil. If oil is there, then the turbo's oil seal is busted.

No oil in the front of the turbo? Look in the exaust end, then.


About oil injector *vacuum* lines.......Pull the hose off at the back of the throttle body where the line attaches (the line that goes to the spider). With the engine idling, the suction comes not from the throttle body, but the spider. Meaning it comes from the rotors on their intake stroke.

I'll re-read what you said **it's taken in during whenever the rotor's compression area expands to pull it in... which is NOT when air is entering the rotor*** and reconsider.

Last edited by HAILERS; 02-17-05 at 11:58 PM.
Old 02-17-05, 11:59 PM
  #28  
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i'll rephrase what i said.. the rotors pull it in when they expand under the oil injectors... The suction comes not from the spider hose, but from the rotors themselves
Old 02-18-05, 12:03 AM
  #29  
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so wait, if it's the turbo oil seal, can i still drive the car so long as i put in a quart whenever the pressure goes down?
Old 02-18-05, 12:05 AM
  #30  
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Originally Posted by Karack
hmm, way i see it is the vacuum pulls the diaphragms on the injectors closed to block oil flow when vacuum is high, the vacuum goes nowhere so how can it be lost? my engine idles smooth as glass, no rich or lean conditions.

I'll even re-read that, even if I don't understand it.

The flow of air is From the throttle body, To the Spider, To the oil injector, to the inside of the rotor housing.

There is No suction From the direction of the throttle body.

I'm sorta missing where I'm acting like a jackass. Maybe I need to get someone to read all this to me and explain just where I did that.
Old 02-18-05, 12:05 AM
  #31  
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Originally Posted by powrdby13B
so wait, if it's the turbo oil seal, can i still drive the car so long as i put in a quart whenever the pressure goes down?

that in itself is a scary statement...


i thought your FSM statement was aimed at me, so i thought it was sarcasm but going back over it i guess it was an answer to his questions.


i see your point about the vacuum from the rotor pulses but removing the injectors won't cause any harm, least i have seen no harm done or seen anyone else claim to have problems by doing it.

Last edited by RotaryEvolution; 02-18-05 at 12:10 AM.
Old 02-18-05, 12:09 AM
  #32  
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i thought it was... contrary to popular belief, i'm familiar with the workings of a rotary engine...

and you didn't really answer my question.. will the turbo still be getting sufficient oil to drive the car, say, home?
Old 02-18-05, 12:12 AM
  #33  
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Let's put it this way. I bought a turbo upgrade. Once installed and driven, I got large puffs of oil smoke upon shifting. I pulled the turbo inlet duct. It was drenched in oil. Oil would drip from the intercooler. I pulled the hose off the check valve on the inlet duct. Cleaned the residue of oil.

Drove the car again. Same smoke upon shifting. Pulled the turbo inlet duct. Drenched in oil. It could only be the turbo oil seal. Put a stock turbo back on the car. No smoke. Bad turbo upgrade.....probably.

Others have had the turbine seal go bad and see dripping oil from the exaust side.

If it's neither, then maybe your oil control rings have given up the ship.
Old 02-18-05, 12:15 AM
  #34  
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was it more purply smoke or was it white smoke? it would seem that white smoke would most likely not come without a power stroke in its past.
Old 02-18-05, 12:16 AM
  #35  
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unless you have more than one oil control problem then your car should be fine to drive as it is but it may have some plug fouling conditions if the leak is bad enough.
Old 02-18-05, 12:19 AM
  #36  
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cept that if its the turbo then the plugs wouldn't be involved... aight, cool... home it comes.
Old 02-18-05, 12:22 AM
  #37  
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Originally Posted by powrdby13B
was it more purply smoke or was it white smoke? it would seem that white smoke would most likely not come without a power stroke in its past.
I never really paid that much attention to the color. I remember white but was more concerned that there was smoke ..period. No smoke allowed. Ain't got no smoke since I put the stock turbo back on.

It only takes ten/fifteen minutes to pull the turbo inlet duct to find out, when the sun comes up tomorrow. You should hope it IS the turbo. Better the turbo than the engine.
Old 02-18-05, 12:22 AM
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it would have to have a hot side turbo seal failure and a faulty OMP to cause any real damage but i wouldn't drive it any farther than necessary to avoid possible turbo bearing damage, if it is the seal then the turbo will need to be rebuilt anyways though..
Old 02-18-05, 12:23 AM
  #39  
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thanks, i'm done here then.
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