2nd Gen R56 Cooper S Oil overfill

Discussion in '2nd Generation: 2007+ R55 through R61' started by adamantium, Nov 24, 2013.

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  1. adamantium

    adamantium New Member

    Nov 11, 2013
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    Hi guys, the turbo seals were redone only,
    I cleaned the charge pipes,the intake manifold,throttle body and intercooler, before I went with a turbo repair(there was oil in all)
    I have no catalytic converter.

    My last two thoughts are a oil soaked/clogged PCV or valve stem seals (although all techs say it can't be - I have a gut it possibly is the seals)
     
  2. MCS02

    MCS02 Moderator
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    I hope this fixes the problem!
     
  3. adamantium

    adamantium New Member

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    What's the you referring to?
     
  4. adamantium

    adamantium New Member

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  5. MCS02

    MCS02 Moderator
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    Sorry it was late I guess that didn't make sense. I hope the repairs you did solve the problem. As far as the PVC having oil in it, at this point anything it posable. I would check and clean anything I could get to. I know it's been said before but once a large amount of oil gets in the exhaust it takes some time to burn out.
    How much is it smoking now? Also is it using oil?
     
  6. adamantium

    adamantium New Member

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    #46 adamantium, Jan 12, 2014
    Last edited: Feb 11, 2014
    ..
     
  7. Systemlord

    Systemlord New Member

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    If your PCV is not allowing blow by gases to escape into the intake either on the throttle body port or turbo inlet port your crankcase pressure can cause oil to backflow into intake or exhaust. Are you running an OCC?
     
  8. adamantium

    adamantium New Member

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    No I'm not running a OCC.
    And from what your saying is that it could be the PCV.

    Is there a test to confirm it? Could I disconnect both the vacuum hose on the left as well as the hose that joins to the turbo inlet while the car is on idle, and blip the throttle to see if the smoke is unchanged?
     
  9. Metalman

    Metalman Well-Known Member
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    Plug the open hose ends so the engine doesn't go lean, but leave the valve cover connections open and you should be able to run this test...
     
  10. adamantium

    adamantium New Member

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    Stupid question, but what should I use to plug it?

    And should I plug and then start the engine? Or do it which the engine running?
     
  11. adamantium

    adamantium New Member

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    Thanks for the help :)
     
  12. Metalman

    Metalman Well-Known Member
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    Rubber stoppers.... Lowe's has them....

    Plug first.... Then start the engine.... If not, you will throw a code for running lean.... The leak will be after the A/F sensor..... Soooo, un-metered air will enter the systen and your ECU won't like that...
     
  13. adamantium

    adamantium New Member

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    Awesome man. Thanks
     
  14. adamantium

    adamantium New Member

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    Oh and I don't have an A/F sensor.
     
  15. Metalman

    Metalman Well-Known Member
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    Yes you do.... It's called a MAF (Mass Air Flow sensor).... I just did the A/F sensor as shorthand...

    It determines the air mass going to the engine so the ECU knows how much fuel to add at the cylinders adjusted by input from the O2 sensors....

    Any leaks to this measuring system show up and the ECU attempts to compensate.... Which is where the stoppers come in....
     
  16. adamantium

    adamantium New Member

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    I swear I don't lol. I know what a MAF is, but I know some minis don't. I am from South Africa, I'm sure ours didn't come with it.

    From the filter box, down to the turbo inlet there is no MAF :)
     
  17. Metalman

    Metalman Well-Known Member
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    Sooo you are saying you don't have #13?

    [​IMG]

    maf.JPG

    Well...... Somewhere your ECU determines the proper fuel ratio to run the engine even in
    South Africa...

    You have two choices.... Pull the hose ends off the valve cover and plug the hoses themselves.....

    Don't plug the hose ends and you will probably introduce non metered air and generate a CEL.... with a lot of engine stumbling....

    Hose plugs are cheap and you don't need to deal with throwing a code...

    Your choice....
     
  18. Metalman

    Metalman Well-Known Member
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    So you have this....

    Then the small hose on #10 might suck in dust......

    The other hose on the valve cover goes down to the throttle body on the intake.... I'd suggest you plug that one then and run you test...

    [​IMG]

    non maf.JPG
     
  19. Metalman

    Metalman Well-Known Member
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    Plug the hose end by the #1

    [​IMG]

    pcv.JPG
     
  20. adamantium

    adamantium New Member

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    Wow, thanks so much for the detailed response!

    Yes mine is exactly like the bottom pic (no MAF)

    Will attempt it in the morning, as per your initial instruction.
     

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