rough acceleration 250 c.i six

Discussion in 'Technical' started by michael stout, Apr 12, 2012.

  1. michael stout

    michael stout Member

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    hey guys, just got a new carb for the 250 and fixed all the vacume and exhaust leaks.. however, when i go to accelerate the car hesitates for a second and then clears out and speeds up. i adjusted the carb and it idles smooth.. any help???:huh:
     
    michael stout, Apr 12, 2012
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  2. michael stout

    michael stout Member

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    yes i am, i'll check it out tomorrow thanks!
     
    michael stout, Apr 12, 2012
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  3. maverick75

    maverick75 Gotta Love Mavs!

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    hows the accelerator pump?
     
    maverick75, Apr 12, 2012
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  4. michael stout

    michael stout Member

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    its perfect, I just bought the carb
     
    michael stout, Apr 12, 2012
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  5. michael stout

    michael stout Member

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    the idle is still somewhat rough
     
    michael stout, Apr 12, 2012
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  6. sportyfamilycar

    sportyfamilycar ElMaverick

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    as mentioned check the points.

    then set the car in park, get your idle right and pull the throttle wide open quickly, there should be no hesitation. you may need to fiddle with the mixture screw and idle screw to get just right.

    thirdly, if you bought the carburetor from a place like autozone or o rielly then chances are the float needs raised. most of the time for some reason the floats are set lower then factory settings and the car will stumble on turns and on harder launches.

    my 2 cents
     
    sportyfamilycar, Apr 12, 2012
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  7. maverick75

    maverick75 Gotta Love Mavs!

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    Just because it's new doesn't mean it's perfect. It has to be calibrated, it's not just bolt on and go.

    If you have a Carter RBS this is how you adjust it:

    [​IMG]
     
    maverick75, Apr 12, 2012
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  8. michael stout

    michael stout Member

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    thanks this helps alot!
     
    michael stout, Apr 12, 2012
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  9. Ken Thompson

    Ken Thompson Member

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    Ken Thompson, Apr 12, 2012
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  10. cody674

    cody674 Member

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    look up HOT SPARK it replaces the points and i think it worth every penny i send
     
    cody674, Apr 12, 2012
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