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Carb on a 283 v8 off idle stumble?

Discussion in 'The Hokey Ass Message Board' started by rustrod77, Feb 2, 2014.

  1. rustrod77
    Joined: Dec 16, 2013
    Posts: 4

    rustrod77
    Member
    from oklahoma

    Hey guys my carb is a demon not sure what cfm but it runs good except for right of idle it will die unless you get past that point before it does die.. Anyone have and knowledge of this problem and how to fix it? Or should I just buy a new carb?
    I have never really messed with carburetors at all so any help is really appreciated!

    Thanks


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  2. rustrod77
    Joined: Dec 16, 2013
    Posts: 4

    rustrod77
    Member
    from oklahoma

    Also it's pretty much stock.. Has headers but that's about it..


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  3. Well it probably your accelerator pump.
    Either too much or not enough fuel to match the throttle blades movement.

    That's my no eyes no ears no hands 1000 mile away guess based off of your description.
     
  4. 61 chevy
    Joined: Apr 11, 2007
    Posts: 891

    61 chevy
    Member

    if its vacuum sec, they are open too fast
     
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  5. wearymicrobe
    Joined: Jul 27, 2007
    Posts: 254

    wearymicrobe
    Member
    from San Diego

    Or your timing is completely off due to a bad vacuum advance, or... a ton of things.

    If it just happened then something broke, if its been ongoing, find the last part you added that caused the issue and work backward.
     
  6. Im betting its not enough pump shot to overcome the lean condition when the throttle is opened up.
     
  7. afaulk
    Joined: Jul 20, 2011
    Posts: 1,189

    afaulk
    Member

    90% of the time
     
  8. afaulk
    Joined: Jul 20, 2011
    Posts: 1,189

    afaulk
    Member

    Install a larger # squirter, if that doesn't fix it, install a larger accelerator pump
     
  9. rustrod77
    Joined: Dec 16, 2013
    Posts: 4

    rustrod77
    Member
    from oklahoma

    I just bought the truck so I have noclue how long it's been doing it


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  10. rustrod77
    Joined: Dec 16, 2013
    Posts: 4

    rustrod77
    Member
    from oklahoma

    I thought about getting a smaller carburetor for it.. But if I could get this one running smooth that'd be alot better


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