Huge oil leak
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This is a discussion on Huge oil leak within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; So i have a 2 litter 2004 WRX and I was replacing the uppipe when I notice that there was ...

  1. #1
    Registered User SanRemoRedSTG2's Avatar
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    Huge oil leak

    So i have a 2 litter 2004 WRX and I was replacing the uppipe when I notice that there was a hole on the back side of my head facing the up pipe.
    When I went to start my car oil started pouring out of it and sprayed all over the uppipe
    I think the valve cover gasket may have been broken but does anyone have any idea what's wrong or what's may have caused this?

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  3. #2
    Moderator T0rque's Avatar
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    There are half moon shaped seals in the back side facing the firewall of the cylinder head. Someone or something may have poked it while trying to pry the motor up to get the up pipe out. Anyway, replace the valve cover gasket, tube seals (spark plug tube gaskets) and the 2 half moon shapes and youll be good to go.


    Lead Wrench @ WTF Tuning, LLC

  4. #3
    Moderator T0rque's Avatar
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    Click image for larger version. 

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    Top left of the pic is one half moon with rubber seal installed, bottom left is the half moon out of the head before I put a new one in.


    Lead Wrench @ WTF Tuning, LLC

  5. #4
    Registered User SanRemoRedSTG2's Avatar
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    The half moon is where it's leaking!

    Can I buy something to replace the half moon piece temporarily so I can drive it to my mechanic?

  6. #5
    Moderator T0rque's Avatar
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    Just go to your Subaru dealer and buy the new parts. That's way easier than replacing an up pipe.


    Lead Wrench @ WTF Tuning, LLC

  7. #6
    Registered User SanRemoRedSTG2's Avatar
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    Alright thanks for the info

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