Crankcase pressure issue

Discussion in 'Modifications And Maintenance' started by Snowbum, Oct 29, 2008.

  1. Snowbum
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    Snowbum Well-Known Member

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    Alright, so I'm having a ****ty problem. During boost (10psi) oil is being shot out of my pcv/pvc (whichever it is) system. Not just alittle oil, no pretty much ran her dry :eek4::ugh:

    Right now the system is obviously open to atmosphere. I have one of the valve cover hoses connected to the crankcase tube with a T-fitting (one connection is open on that fitting). The other valve cover hose is just chillin. My fear is that if i close the connections the pressure will be too great and blow either my evo3 16g or the main seal, or something will go catastrophically wrong.

    Should I close the system, or is there a device that will remedy this issue?

    Thanks,

    Thomas
     
  2. Ej22TIM
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    Ej22TIM Well-Known Member

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    also, he tried tieing the system togather and that blew his td04
     
  3. Snowbum
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    Snowbum Well-Known Member

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    ^^ahh yes....forgot to include that. Thanks Tim :)
     
  4. AWDimprezaL
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    AWDimprezaL has more posts than you

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    catch can! come look @ bilknut's setup.
     
  5. Bielke55
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    Bielke55 Well-Known Member

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    had this problem also. come take a look
     
  6. bikerboy
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    bikerboy Subie GOD

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    IMHO something already has gone wrong. I would look at doing a compression test ASAP. I would suspect ring land failure.
     
  7. AWDimprezaL
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    AWDimprezaL has more posts than you

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    WAIT all the oil? uhhh, yeah, that doesnt just "happen", do a comp test.
     
  8. RichWRX
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    RichWRX Well-Known Member

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    I had the same problem with my turbo sled, there was a big hole in top a 1 cylinder
     
  9. Snowbum
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    Snowbum Well-Known Member

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    Thanks for the suggestions. I'll do a comp test and get back to ya all.
     
  10. Bielke55
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    Bielke55 Well-Known Member

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    I had a problem with the breather hose that goes to the PCV was opening to air and spraying oil out onto the main wire harness.
     
  11. Snowbum
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    Snowbum Well-Known Member

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    ^As of now, that is what im hoping is wrong. The oil light came on after multiple pulls/abuse on dirt roads. (luckily i had some rotella in the trunk). Comp test will prove if its piston to cylinder wall failure tho :eek4:
     
  12. AWDimprezaL
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    AWDimprezaL has more posts than you

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    Oil light coming on is NEVER good fella. You better pray.
     
  13. Shibbs
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    Shibbs The Daywalker

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    Oh no. Oil light on usually means that its too late. :(

    Here's hoping it wasn't too late.
     
  14. Snowbum
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    Snowbum Well-Known Member

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    O, I'm praying. If its crap......i think someone had a ej257 block f/s alil bit ago :dunno:
     
  15. bobafett04wrx
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    bobafett04wrx New Member

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    WRX1 does
     
  16. Bielke55
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    Bielke55 Well-Known Member

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    I can build one for ya...
     
  17. bikerboy
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    bikerboy Subie GOD

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    Funny how you left this out of the orignal post. If you saw the oil light while in hard boost your on borrowed time every time you start the car.
     
  18. Snowbum
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    Snowbum Well-Known Member

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    ^Ummm....I'm not seeing the humor here...

    I put 4 quarts of oil in it as soon as i realized what was happening. Though, I do admit, it was prolly too late anyways. As of now, running her low on oil like that is the least of my problems, considering I prolly need a new block, bearings, probably pistons.

    I just gotta make frenchtoast and lemonade and it'll be all good :)
     
  19. wall of tvs
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    wall of tvs Well-Known Member

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    Subaru should just change the oil light to a "rebuild engine soon" light.
     
  20. Dream
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    Dream Well-Known Member

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    :laugh::laugh:
     
  21. AWDimprezaL
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    I would have been more optimistic if you just would have the oil coming out of the breathers issue, but you add the oil light and you are probably F'd, mine used to barf oil out of the VC vents, then it just stopped. this was about 2 years ago.
     
  22. Snowbum
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    Snowbum Well-Known Member

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    Just checked the compression....Well, atleast 2 were good :UGH: one was half ****ty at 50psi and the other one read nothing (turned out to be the one with piston slap, cylinder #3). So I am in the market for a new block!!! YAY.