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Thread: Miata Power Plant Frame

  1. #1
    Join Date
    Oct 2002
    Location
    Wandering the USA
    Posts
    1,341

    Default Miata Power Plant Frame

    '91 daily driver. When I tore it apart, the long bolts through the Power Plant Frame and the differential were frozen. I finally won, but now the PPF doesn't have the "nut" inserts in the rear. What's next? Fabricate something? New PPF? I couldn't find it listed on car-part.com.

    Also, do I have to remove the front exhaust pipe to install the transmission? It was a real pain getting it out with the pipe there. But I know those studs will snap and I'll have to pull the header, too. What's the chance that a header stud will snap? That would be a shame, because it might result in the whole car winding up at the bottom of a cliff somewhere
    Marty Doane
    ITS RX-7 #13 (sold)
    2016 Winnebago Journey (home)

  2. #2
    Join Date
    Dec 2001
    Location
    Southwest VA
    Posts
    101

    Default

    Marty, I can't speak to your trans question, but Advanced Autosports can help with the PPF nuts:
    http://www.advanced-autosports.com/i...products_id=72

    Steve

  3. #3
    Join Date
    Oct 2002
    Location
    Wandering the USA
    Posts
    1,341

    Default

    Awesome. Thanks very much.
    Marty Doane
    ITS RX-7 #13 (sold)
    2016 Winnebago Journey (home)

  4. #4
    Join Date
    Jun 2006
    Posts
    28

    Default

    It does help to move the exhaust on a tranny swap...I made a habit of taking the entire exhaust loose at the header and removing it...sure made for a lot less headache. I soaked the studs with PB Blaster for several days prior to removal...re-soaked them daily until it was time to break them loose. Didn't break the studs, and used anti-seize on reassembly. After that, I never had an issue. It helps to clean the threads up once you get the DP off with a drill mounted wire brush.

    G'luck...and if you do break something, I've had much success getting parts from Tom at Parts Group.

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