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Weber Carburator on my 413
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Zorc
Posted 2023-02-01 4:24 AM (#627303)
Subject: Weber Carburator on my 413



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Location: North Germany
Hello,
Yesterday I removed my air filter to check the carburetor - it should be a Carter AFB 2903S. But there is a Weber 8867 installed.
After hours of work in front of the monitor, I learned that this Weber is the same as an Edelbrock 1412 ( ? ). It also sits on an Edelbrock 7193 intake manifold.
The carburetor has a manual choke and the engine runs fine - as far as I can tell at the moment.
So my question : is it ok to use this carburetor ? Is there any difference to the original Carter ? ( better or worse ? )
When it's cold it wants to start a bit bad but that can also be due to the adjustment. Maybe I can find a manual for it.

Thanks for your help
Roger





Edited by Zorc 2023-02-01 4:27 AM




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wizard
Posted 2023-02-01 5:28 AM (#627304 - in reply to #627303)
Subject: Re: Weber Carburator on my 413



Board Moderator & Exner Expert 10K+

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Location: Southern Sweden - Sturkö island
Roger, the cfm (cubic foots per minut) for your engine is; cubic inches times max rpm divided by 3456 = 413X5500/3456 = 657 cfm.

So the carburator is larger, but acceptable, it might require some fine tuning with nozzles and rods.

The Edelbrock 1412 has mechanical choke, wich is bad for cold starts. The automatic choke will open the choke slightly as soon as the engine starts, then the choke will automatically open, step by step until the engine reaches operating temperature.

To manage this slight opening is difficult when you dont have any referece on the choke cable in your car.

Hence, the best solution is to have a carburator with automatic choke (requires a manifold with a heat riser well and a butterfly valve). Second best is electric choke, downside is that the choke will be active also on short stops when not needed.


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Shep
Posted 2023-02-01 8:17 AM (#627305 - in reply to #627304)
Subject: Re: Weber Carburator on my 413



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The casting is Weber sourced. I do not believe it is a Weber designed carb as Wizard has pointed out.
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Powerflite
Posted 2023-02-01 11:47 AM (#627311 - in reply to #627303)
Subject: Re: Weber Carburator on my 413



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That carburetor is fine, other than the choke setup. But be aware that it has a larger inlet to the air cleaner, so the original air cleaner won't fit on it.
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Zorc
Posted 2023-02-01 12:55 PM (#627313 - in reply to #627303)
Subject: Re: Weber Carburator on my 413



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Posts: 90
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Location: North Germany
Hy,
what I understood ( and read ) is that Carter closed the doors and Edelbrock bought the patents. Weber as a large and experienced carburetor manufacturer builds the carburetors ( or the housing ) for Edelbrock.
And further I read that Edelbrock itself builds only the intake manifolds. Everything else ( e.g. cams ) is made by other companies and sold under "Edelbrock".
I don't know if this is true.
The manual choke should not be a problem for me, I know that from my other cars.
The most important thing for me right now is : the engine will run fine with this equipment.

@powerflite : that's interesting and explains another "problem". On my Weber is an Edelbrock "bling bling" air filter and I looked around in Germany to find an "original" housing. I found a Mopar housing and the seller swears it is from a 4bbl carb - but the diameter is 105 millimeters.
My carburetor is 140 millimeters in diameter.

The more I research and learn about the car, the more unusual and non-original things I find.
So there is some work to be done

Thanks
Roger

Edit : i found something about : https://www.jalopyjournal.com/forum/threads/edelbrock-carbs.1012452/


Edited by Zorc 2023-02-01 12:57 PM
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wizard
Posted 2023-02-01 2:59 PM (#627315 - in reply to #627303)
Subject: Re: Weber Carburator on my 413



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I cannot see in your photos, but it seems like there's a spacer ring on the carb. Take a measurement on the outside where you see the lids for the step-up rods (squarish castings) - if that measurement is close to the needed, perhaps you could remove the ring?
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Zorc
Posted 2023-02-01 5:07 PM (#627320 - in reply to #627303)
Subject: Re: Weber Carburator on my 413



Regular

Posts: 90
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Location: North Germany
Yes, you are right. There is a spacer ring (aluminum) on the carburetor. It is possible to remove the ring, but I thought it is just to change the height. Maybe 1/2", I can't remember if the diameter is different, maybe then i have 130 millimeter.
At the moment I am not at home.
Roger


Edited by Zorc 2023-02-01 5:09 PM




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wizard
Posted 2023-02-02 3:12 AM (#627327 - in reply to #627303)
Subject: Re: Weber Carburator on my 413



Board Moderator & Exner Expert 10K+

Posts: 13042
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Location: Southern Sweden - Sturkö island
The original carburator was a Carter AFB-3108S, the AFB-2903S was for the RAM engines
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