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11-02-2012, 04:14 PM | #1 |
Junior Member
Join Date: Aug 2010
Location: Omaha, AR
Posts: 19
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Carburetor question
Got a problem with my carburetor, I think. The car starts good, runs good on top end, idles real well with the choker rod turned out 1 1/2 turns. If I try to turn it in, it loses a little bit of power and doesn't run as well. I wonder if it's in the adjustment needle. Anybody had any problems like this? (Plugs, points, timing are all in good shape.)
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11-02-2012, 05:29 PM | #2 |
Senior Member
Join Date: May 2010
Location: Crete, Illinois
Posts: 296
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Re: Carburetor question
The carb needs some attention. Try blowing out all the jets with compressed air. All carbs I rebuild will idle, with the gav turned out only one quarter turn.
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11-02-2012, 06:46 PM | #3 |
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Join Date: Nov 2010
Location: Elizabethton, Tn
Posts: 75
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Re: Carburetor question
Could be an air leak. With the gav open that far more gas than normal is allowed in the carb. If it's running as good as you say, it indicates the excess fuel is being balanced by excess air...which shouldn't be there. Fordfixer is right, the car should perform well on 1/4 setting. Check for looseness, slack, play in the throttle shaft and check for air leaks in the gaskets between carb & intake manifold or in the manifold to engine connection.
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11-02-2012, 07:02 PM | #4 |
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Join Date: Jul 2012
Location: Venice, FL
Posts: 648
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Re: Carburetor question
Larry,
When I got my car the GAV was completely blocked. When I rebuilt the carburetor I drilled out the plug required to manufacture/drill the passage for the GAV. It required a drill to open the hole once I found it. Just a thought. Al |
11-02-2012, 08:57 PM | #5 |
Senior Member
Join Date: Dec 2010
Location: FRESNO, CA
Posts: 12,560
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Re: Carburetor question
Larry,
IF the GAV affects the idle, then the basic idle speed is too FAST. The GAV is just an extra jet to supplement the MAIN jet when needed. Go to www.modelabasics.com They have some excellent schematics to take the "MYSTERIES" out of carb functions. Study them, and you'll go, "Ah Ha, Ah Ha, I see! it's not ROCKET SCIENCE!" Bill W.
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11-03-2012, 01:10 PM | #6 |
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Join Date: Aug 2010
Location: Omaha, AR
Posts: 19
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Re: Carburetor question
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