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Oil leak help

Discussion in 'Engine & Performance' started by 2012Lamarie, May 3, 2019.

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  1. 2012Lamarie

    2012Lamarie Senior Member

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    So I had a drivers side exhaust manifold bolt break. Had a guy replace it, new gasket all new studs, bolts etc. Now it appears to be leaking oil from the rear most bolt. How is that possible? I thought maybe it was the valve cover but it literally looks like it's coming from that bolt.

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  2. Blackdodge2010

    Blackdodge2010 Senior Member

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    Im not 100% sure, but maybe he drilled too far when removing the old broken bolt.
     
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  3. ThunderMug95

    ThunderMug95 Senior Member Supporting Member

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    Id say do a thorough tracing of where all the possibilities could be. If you eliminate them you are prob left with a major problem and in need of a replacement head.
    How much of an oil leak are we talking about? Drops on the driveway or slight seeping around the bolt? For the oil to travel between the threads and the bolt is a bit of a stretch, but if he overtorqued and split the head at the bolt hole....jeez
     
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  4. 2012Lamarie

    2012Lamarie Senior Member

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    If he drilled to far wouldn't it be water not oil?

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  5. 2012Lamarie

    2012Lamarie Senior Member

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    That's hard to explain. It's enough that you can see it coming from the bolt and it's making it's way to the bottom of the ball housing and dripping there. When I drive it it smokes under the Hood.

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  6. ThunderMug95

    ThunderMug95 Senior Member Supporting Member

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    Thats a significant leak then....jeez. Next question, you said you had “a guy replace it” was it done by a mechanic at an actual shop or was it by a buddy at his house or something. If it was a shop, Id take it right back ASAP. Have him look over what he couldve hit by accident or leverage out of the way to cause a significant leak. Hoping its just something like breather tube etc.
    yes tgere are water jackets in tgere but there are skso oil channels. The chances of oil coming down the threads and all the way out are nil unless it cracked the head to allow it to escape.
     
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  7. 2012Lamarie

    2012Lamarie Senior Member

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    He's a mechanic so does know what he's doing. Lol I think... I was thinking it's the valve cover. I ran my hand everywhere I could and a big wad of red silicone was under there. No wet stuff though.

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  8. Burla

    Burla Senior Member Military

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    he drilled too far, bad deal right there. That's why most guys dont drill out those holes. Just from as many times that has happened here, I would never let anyone drill those studs, weld it that's it. It is amazing how brave some guys are, drilling into engine w/o any thought.

    Now, how to fix it. He's gonna have to maybe stuff a bolt in there and weld around it, break off the top and weld the exhaust there, I dunno. If he messes with you at all, go straight to small claims, and sue for the max claim new engine.
     
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  9. Burla

    Burla Senior Member Military

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    Maybe he will get lucky, take out bolt, use high temp sealant, and put back, maybe that will solve it. Hopefully you don't have issues in the oil galley. Shavings and or blockage, I would make sure he uses a short bolt on the put back.
     
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  10. Burla

    Burla Senior Member Military

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    I wonder if they have something like this for the hemi..

     
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