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Thread: 454 Idle
          
   
   

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  1. 01-25-2009 09:27 PM #3
    glennsexton's Avatar
    glennsexton
    glennsexton is offline CHR Member/Contributor
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    Mar 2005
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    Tigard
    Car Year, Make, Model: 63 Nova SS
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    2,591

    Sounds like a choke adjustment. When the engine is cold, there is a cam connected to a bi-metallic spring which produces a higher idle. Once warm, the spring relaxes and the cam rotates allowing normal idle.

    If your carb looks like this, try setting choke to middle index marks and work from there in 1 mark increments.

    Good Luck,
    Glenn
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