carburetor rebuild issues- autolite 2100 2 barrel - Mustang Evolution

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Old 10-07-2012, 03:32 PM   #1
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carburetor rebuild issues- autolite 2100 2 barrel

I just finished a rebuild on my engine and the carburetor. I've got the motor working great, but the carb is giving me issues. First, I'm not certain if I'm missing a brass weight that sits on the little ball where the gas comes out of the main chamber with the float. Should there be a weight there on this model? Second, if this weight is supposed to be there, does anyone know the size this is supposed to be? I know it couldn'tbe more than 1/8" diameter, but I need to know the length. If this does not make sense, let me know and I'll try to explain better.
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Old 10-08-2012, 12:07 AM   #2
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What brand and type carb is it?
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Old 10-08-2012, 12:11 AM   #3
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Quote:
Originally Posted by Aggiesrok
What brand and type carb is it?
It is an autolite 2100 which is the basic two barrel carburetor that came on my v8 mustang 1964
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Old 10-08-2012, 12:15 AM   #4
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Have you searched online for a exploded view. If its missing it will be somewhat critical to replace it with the exact one. You might check for a full rebuild kit and what's in it.
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Old 10-23-2012, 10:11 PM   #5
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I just rebuilt mine but don't remember a weight. There's a steel ball. There are some good online videos and parts breakdown online.
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Old 10-28-2012, 10:04 AM   #6
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Which part are you talking about?

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Old 10-29-2012, 01:02 AM   #7
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Which part are you talking about?
9B-511 is the part I'm talking about. My carburetor is slightly different though. It's the carb for a 289 motor, which I'm having a hard time finding the diagram for. I'll check the website on this diagram to see if they have it.
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Old 10-29-2012, 02:15 AM   #8
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That weight is going to be fairly important to get correct. It appears to have something to do with how much fuel the venturis draw into the carb/engine. You may not find that in a kit and have to either buy another carb or spend some time fabricating and testing one until you get it the right size and weight.
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