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idling rough and balky from a stop all of the sudden?

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by 72beater, Jul 12, 2003.

  1. 72beater

    72beater 1/2 ton status

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    The beater just starting idling roughly and acting hesitant when I take off? I'm thinking carb but any idea where to start? it's a carter comp 4 barrel. any ideas?
     
  2. clubba68

    clubba68 1/2 ton status

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    Try pulling back a quarter turn on the idler screws on the carburator while the truck is at idle and see if that helps, if it does, take them back in 1/8 turn and find out where your best idle is.
    -Andrew /forums/images/graemlins/usaflag.gif
     
  3. 72beater

    72beater 1/2 ton status

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    I'll try that. Thanks.
    -Ernest
     
  4. clubba68

    clubba68 1/2 ton status

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    Did it help?
    /forums/images/graemlins/usaflag.gif
     
  5. Chris_T

    Chris_T 1/2 ton status

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    If it just started all of a sudden did you check the plugs for symptoms (some sort of deposit, oil or ash)? Could the timing have changed?
     
  6. TONYP

    TONYP 1/2 ton status

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    I have a hook up and can get JET PERFORMANCE Stage 2 carbs for $150.00 rebuilt...
     
  7. 72beater

    72beater 1/2 ton status

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    well, I adjusted the carb and the problem is still there. I guess I'll pull the plugs, check the timing, etc. On top of this my battery just went belly up too! oh well, old trucks!
     
  8. 72beater

    72beater 1/2 ton status

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    ok, it's not the plugs, wires, dist, points, coil, etc.
    I'm thinking carb for sure now. I have checked for air leaks, etc, but am now out of ideas. anyone?
    -Ernest
     
  9. Topdown

    Topdown 1/2 ton status

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    hate to sound like a lamer, but have ya looked at the fuel filter(s)? might be a slow fuel feed.
     
  10. 72beater

    72beater 1/2 ton status

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    good question, but I did check that. I'm buying a rebuilt carb from a guy and throwing that on, and I hope that solves it.
    -Ernest
     
  11. Topdown

    Topdown 1/2 ton status

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    hmm... good luck!

    I had a similar problem with my previous engine... couldnt find the problem anywhere! /forums/images/graemlins/angryfire.gif

    Lucky for me the cam went flat and 6 of the 8 rod bearings were shot so I built a new engine. No more stumble off idle. /forums/images/graemlins/thumb.gif
     

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