Carb Help.

Discussion in 'Technical' started by Slider28, Jul 4, 2014.

  1. Slider28

    Slider28 Member

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    I have a 72 Grabber 302. When I got the car it had 2 inline fuel filters. One on the carburetor and one about 2 feet away (a Holley washable one you unscrew and clean). The car was sluggish when I would give it gas mainly at take off or if I was to slow way down to make a corner turn, it would almost want to die. The shop took off the "Holley cleanable one" and left the one screwed into the carburetor and it ran GREAT, but there was small enough trash in the gas to pass through that filter and the carburetor started ALWAYS flooding so I put the "Holley cleanable one" back one and had the carburetor gone though and its running sluggish again. Are two inline filters THAT close a bad thing? maybe not getting enough gas? I'm thinking of taking off the filter screwed into the carb and she how it runs. Just thought I would ask the experts on here first..

    Chaz.
     
  2. Craig Selvey

    Craig Selvey Indiana State Rep - MCCI

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    How do the filters look? Are they really dirty or rusty?
     
  3. Slider28

    Slider28 Member

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    They are both new.
     
  4. 71gold

    71gold Frank Cooper Supporting Member

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    could be a stopped up sock in the tank...:bouncy:
     
  5. Slider28

    Slider28 Member

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    HMMM... I don't remember a sock when I replaced the gas tank and sending unit, but that was 8 years ago. but even when I did replaced the tank, sending unit, and both filters, it always ran sluggish, turning a corner giving it gas it would act like it wanted to die and trying to keep it at a CONSTANT speed 30, 40, 50, etc... It would chug ( kinda hard to explain) but when I would give it a little gas it would run great. It'sonly when going SLOW and I give it gas it feels like it wants to die.
     
  6. Crazy Larry

    Crazy Larry Member

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    The needle/seat assembly may need replaced if dirt got in there.
     
  7. Slider28

    Slider28 Member

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    I had the Carb rebuilt and still runs the same, just doesn't flood anymore.
     
  8. Bryant

    Bryant forgot more than learned

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    usually restricted fuel filters cause higher rpm problems not idling or low rpm problems. you could be having a problem with your ignition system. a weak coil, worn out points, distributor clam not tight, etc...
     
  9. baddad457

    baddad457 Member

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    What kind of carb are we talking about here ? Autolite or Holley ? When was the last time it was tuned up ? What ignition system ?
     
  10. m in sc

    m in sc Member

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    do it yourself, just because you paid someone doesn't mean it was done right. it def sounds like theres still junk in the carb or its set up incorrectly.
     
  11. Slider28

    Slider28 Member

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    It's a Motorcraft 2 bbl. I used to have points, etc.. but had to converted to electronic ignition. New plugs, wires, Cap, etc.. was just done. I have another Carb that I put on it and it ran the same way. Just seemed to run like a bat out of hell with ONE filter. But I don't want crap getting into the carb again. Might have no choice but to put the tank and clean everything again.
     

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