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Thread: Rusted header nuts 78 280Z

  1. #1
    Registered User widget777's Avatar
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    Default Rusted header nuts 78 280Z

    I am asking members for help on finding a new header pipe in another thread. This thread is asking for help on getting the old pipe off......namely how to get the nuts off the exhaust manifold. I read the "siezed header nut - help" thread by Arvin_a. I asked my local parts store for advice and they recommended a spray that freezes teh area instead of heating it up. Has anyone used the freeze approach?
    Regards,
    Warren Thomson
    Gig Harbor, WA
    253-970-5242 cell

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    If you have an impact wrench, try a long extension and 6-point deep socket from the bottom of the car (with the car jacked up and well supported). Use a low power setting on the impact wrench so as not to break the studs. The pounding of the impact wrench may break them loose.

    I assume that you have soaked the seized nuts several times with Kroil or some other good penetrating oil. Soak the studs, too. If they come out with the nut, its no big deal. Your local Nissan dealer can get you new studs and nuts if you need them. Use never-seize when you re-install. Good luck.
    Last edited by 240jetjoc; 04-11-2007 at 01:09 PM.
    Roger

    09/70 1971 series 1 (under modified restoration)
    12/70 1971 series 1 (under restoration)
    07/72 1972 nice driver
    11/72 1972 parts car

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    Registered User Surfsup's Avatar
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    Quote Originally Posted by 240jetjoc View Post
    If you have an impact wrench, try a long extension and 6-point deep socket from the bottom of the car (with the car jacked up and well supported). Use a low power setting on the impact wrench so as not to break the studs. The pounding of the impact wrench may break them loose.

    I assume that you have soaked the seized nuts several times with Kroil or some other good penetrating oil. Soak the studs, too. If they come out with the nut, its no big deal. Your local Nissan dealer can get you new studs and nuts if you need them. Use never-seize when you re-install. Good luck.
    couldnt you use wd 40? to soak the nuts, i remember my friends lug nuts on his rims got stuck, so we flooded it with wd 40 and it popped out !
    73' 240z in the works..

    currently: On 4 jackstands. interior is out. nearly.

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