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2G 2g auto dp to 02 housing bolts

Posted by crazy95dsm, Jun 6, 2020

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  1. crazy95dsm

    crazy95dsm Proven Member

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    Joined Feb 20, 2011
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    Hey everyone, I'm having trouble keeping my downpipe connected to my ss 02 housing.
    The the bolts keep vibrating loose. I tighten the heck out of it and they still loose. Anyone use certain nuts and bolts?
     
  2. ThunderChild

    ThunderChild Supporting VIP

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    Lock washers along with larger flat washers, maybe some mid duty loctite.
     

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  3. Esquire the Bold

    Esquire the Bold Proven Member

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    I think some people use Nord lock washers. I've re-torqued my bolts several times when hot and cold after install and haven't had any issues with them coming loose,
     

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  4. spyderdrifter

    spyderdrifter Freelancer

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    Always had OEM flat and lock washers and the nut. Never had vibration issues causing them to come loose.
     

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  5. TK's9d2TSi

    TK's9d2TSi Supporting Member

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    Does the nut feel loose while you’re threading them in? If so, maybe try new nuts.
     

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  6. jinscho

    jinscho Proven Member

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    Bangor, Pennsylvania
    Split lock washers. They keep tension on the nut so it won't back off due to vibrations. When I bought my ARP stainless bolt kit for the FP Race manifold from STM they only included flat washers. I hit up my local Ace hardware and grabbed some stainless lock washers and haven't had any issues with them backing out.

    On a side note, I'd also suggest using some Nickel anti-sieze to make sure you don't break anything if/when you need to take it back apart.
     

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