aluminum manifold issues

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Other Cadillac Engines Discussion, aluminum manifold issues in Cadillac Engine Discussion; i have a 79 seville with the efi oldsmobile 350. The problem is that i replaced the thermostat and, unfortunately, ...
  1. #1
    deerealiss1 is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Jun 2007

    aluminum manifold issues

    i have a 79 seville with the efi oldsmobile 350. The problem is that i replaced the thermostat and, unfortunately, the thread on the intake on the right side was stripped. the bolt wasnt unscrewed in years. Any suggestions on a fix besides a longer bolt with a washer?

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  3. #2
    carnut is offline Cadillac Owners Master
    Automobile(s): 1988 Allante. 2005 Jag XK8, 1988 Mercedes Benz 300 SE
    Join Date
    Feb 2003

    Re: aluminum manifold issues

    Install a Heli-coil repair kit. Or retap one size larger and replace the bolt with a threaded stud and nut, Then from now on, you're not unthreading a bolt from aluminum.

  4. #3
    LBF is offline Cadillac Owners Member
    Join Date
    Jul 2006

    Re: aluminum manifold issues


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