Fuel System: Carter AFB

[altair]

I have a 259 on a stand with a four barrel manifold, I picked up a Carter AFB at a swap meet that has two sets of mounting holes, the inboard set fits the manifold with all the appropriate gaskets and spacers. The carburetor is fitted with vac advance inlet, choke pull-off vac inlet and a PCV vac inlet (this engine will be using the draft tube in lieu of the PCV and therefore will be covered). The carb also has an option for a fuel inlet at the front but would require to be threaded. My question starts here the manifold has a heat tube for the choke pull-off and there is a hole in the choke assembly mechanism for an attachment to actuate the pull-off. The heat tube has a brass tube coming off it for attaching a rubber tube and that is about where I am at. There is a vacuum 3/8 pipe plug in the right rear (facing the engine). I do not have the furnace, pull-off rod or any idea how the assembly is attached or where it is mounted. There are some darkened pictures showing the rubber tube going nowhere. I assume it is attached to the 3/8 fitting some how. There appears to be no place for an electrically heated assembly no any means to hand operate the choke..... any insights David

[PackardV8]

Random suggestions:

1. Check clearance on the secondary throttle bores. The early intakes are too small for some AFBs and the butterflies will hit. On some Larks and trucks, it's possible to use an adapter plate, but most C/K/Avanti don't have the hood clearance. Just enlarge the throttle bores with a grinder.

2. Too many different AFBs to be sure what you're asking about the choke and fittings without a photo.

3. There exist electric choke conversion kits and manual choke conversion kits should you decide not to use the heat pull-off.

jack vines

[DEEPNHOCK]

There should be some numbers stamped on the edge of the base.


That should tell you what model/size the carb originally was.
http://www.asecc.com/data/carter.html
Make sure to measure the secondary diameter and make sure your Stude ibtake secondary openings are large enough.
Most AFB's will require some intake work for the carb to work properly.
What kind of choke control is on the carb now?
Is there a choke coil?
Is there a cable bracket for a manual choke?
(Again, that number will help identify the original style, and that might answer your question).
It is possible that this carb was on a Mopar that has an intake mounted choke coil and all that is on the carb is the linkage tab.

I have a 259 on a stand with a four barrel manifold, I picked up a Carter AFB at a swap meet that has two sets of mounting holes, the inboard set fits the manifold with all the appropriate gaskets and spacers. The carburetor is fitted with vac advance inlet, choke pull-off vac inlet and a PCV vac inlet (this engine will be using the draft tube in lieu of the PCV and therefore will be covered). The carb also has an option for a fuel inlet at the front but would require to be threaded. My question starts here the manifold has a heat tube for the choke pull-off and there is a hole in the choke assembly mechanism for an attachment to actuate the pull-off. The heat tube has a brass tube coming off it for attaching a rubber tube and that is about where I am at. There is a vacuum 3/8 pipe plug in the right rear (facing the engine). I do not have the furnace, pull-off rod or any idea how the assembly is attached or where it is mounted. There are some darkened pictures showing the rubber tube going nowhere. I assume it is attached to the 3/8 fitting some how. There appears to be no place for an electrically heated assembly no any means to hand operate the choke..... any insights David

[altair]

I need formal instructions on how to forward photos. On the base tab 3615 S with L3 under the number, bottom of mounting plate AG 14, on the butterflies 2-85 and 2-95, vacuum choke pull-off 180-137 top casting #1703 (casting) Main throttle mechanism (fuel inlet side) 423, opposite side choke mechanism 181-320. I will work on posting an image

[PackardV8]

Some sources indicate 3615 is a Carter AFB from a '64/'65 413", so it was designed for an engine 60% larger in displacement than your 259". It will work, but it's probably going to be a bit rich.

As Jeff says, the Mopars often used a choke stove in a well on the manifold crossover heat riser, so there's no easy way to hook it to the Stude tube. Consider an electric choke conversion.

jack vines

[StudeRich]

So this 3615 S is NOT a modern Edelbrock or a late Carter 9000 series Carb. it should be an original Carter old stock Carb. for another make without the Stude. right front Fuel inlet but with a Manifold Heat controlled Automatic Choke not an electric one correct?

You need the correct Stude. Intake Manifold with the tube entering the center "Heat Port" and back out to connect to the Choke Housing for heat, no "pull-off rods", "Furnace" etc. are needed, just heat. There should be a thermostatic Coil, Black knob to adjust the choke, this is what gets heated.

The rubber nipple & hose from the side of the Carb. opening mouth is just a secondary air flow tube to the Intake Manifold Heat tube.

[rodnutrandy]

Someone needing a carb for a 64/65 413 might pay enough for you to find a later edelbrock carb with electric choke . they pop up on craigs list .

[altair]

After reviewing hundreds of images of carter AFB models it appears that 64-65 Chrysler and Pontiac were the main users of this and similar models of AFBs. It appears that the tops and bottom are interchanged for various models and some are configured differently. None of the 3615s models clearly indicate how the choke is configured and one has an improvised manual choke. The castings have several untapped holes for various appendages and one particular model C4 AFB assigned to a 64 Pontiac Tempist uses the exact bottom component and is fitted with a heat actuated choke management system and is attached using the same holes as the vacuum choke pull-off currently in use. On the choke pull-off shaft there is a component with a spare hole, in the images the heat coil is attached to that hole. It would appear that I will have to remove the choke pull-off #180-137 and install the heated assembly (furnace) in the same holes. I just have to find one. This model (3615s) has three untapped holes, three or four blank castings and four extra linkage holes therefore with a bit of engineering it could be configured into several models.