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2G O2 housing to downpipe Nut

Posted by that2G98, Sep 15, 2018 at 7:18 AM

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  1. that2G98

    that2G98 Proven Member

    Joined Jan 10, 2017
    De Soto, Missouri
    So I did a gasket refresh and I'm having a hell of a time getting both nuts to tighten as a wrench is too big to get down there, now the far right one I'll just pick up a long extension to get to but how am I suppose to tighten the one on the left cause it's a super awkward position.

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    My DSM:
    1997 Mitsubishi Eclipse GST

    Street Build

    16g   manual
  2. Doubleot

    Doubleot Proven Member

    Joined Mar 15, 2009
    Spanish Fork, Utah
    I usually get the nuts snug and slowly tighten one then another. I can get a full socket on mine. I'm using the stock 02 housing with an aftermarket down pipe.
    My DSM:
    1998 Mitsubishi Eclipse Spyder GST

    Street Build

    279.1 whp   325.3 lb/ft
  3. JPenny

    JPenny Proven Member

    Joined Feb 24, 2016
    Newport, Tennessee
    If possible jack up front end and use a long extension from underneath, I was able to get a socket onto both. But like mentioned I also had stock o2 housing aftermarket DP.
    My DSM:
    1997 Mitsubishi Eclipse GST

    Street Build

    T25   manual
  4. Kryndon

    Kryndon Proven Member

    Joined Jan 10, 2014
    Bulgaria, Europe
    I can confirm with the others, on a stock mani/downpipe the nuts are easily accessed with a deep socket 19mm and an extension. Slightly jacking the front end by the subframe also helps if your car is too low.
    My DSM:
    1997 Eagle Talon TSi AWD

    Street Build

    14.769 @ 92.22 MPH
    Teezy likes this.
  5. Mello

    Mello Proven Member

    Joined Jul 4, 2003
    Albuquerque, New Mexico
    I too, do these from underneath with the front up in the air for room.

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