How To Rebuild A Carter Afb Carburetor?

What does AFB stand for on a Carter carburetor?

In 1957, Carter started marketing the AFB series carburetor, and it quickly became a widely accepted standard for the automotive industry from the late Fifties into the late Sixties. AFB stands for “aluminum four barrel ” and this carburetor was used as original equipment on many OE performance engine options.

How does a Carter AFB carburetor work?

When the throttle is depressed, and engine vacuum drops, the piston is pushed up by the spring, pulling the metering rod out of the jet, increasing the amount of fuel available for the engine to consume. The fuel passes an air bleed that is similar in concept to the air bleeds used in the idle circuit.

How do I adjust my Carter AFB carburetor?

How to Adjust the Mixture on a Carter AFB

  1. Turn the engine on and allow it to warm up.
  2. Locate the two large slothead screws at the bottom of the front of the carburetor.
  3. Turn one air/fuel mixture screw in a clockwise direction with a slothead screwdriver with the engine idling until the engine speeds up.

What CFM is a Carter AFB carburetor?

The cfm of the Carter WCFB four-barrel carburetor is approximately 400. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air cleaner flange.

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How do you check a Carter carburetor?

The Carter AFB carburetors are roll stamped with an identification marking at the right front base of the carburetor’s mounting ear. The top line of the roll stamp identification has the carburetor identification number.

Does Carter still make carburetors?

Carter Carburetor Company in St. Louis, Missouri, was established in 1909, and ceased operation in 1985. It was founded by William Carter, who started experimenting with automotive carburetors while running a successful bicycle shop.

How do you recondition a carburetor?

Here’s what to do:

  1. Remove the carburetor and place it on your worktable.
  2. Read the instructions outlined in your rebuild carburetor kit.
  3. Unhook the accelerator pump and take the cover off.
  4. Wipe down all the carburetor’s parts with carburetor cleaner.
  5. Rinse all the parts in water and allow them to dry thoroughly.

How much is a carburetor rebuild kit?

How Much Does a Carburetor Rebuild Kit Cost? A carburetor rebuild kit usually costs around $50 to $250, depending on its brand and inclusions. Most rebuild kits are direct fit, so make sure to choose one that’s compatible with your vehicle.

Who made quadrajet carbs?

The Quadrajet is a four barrel carburetor, made by the Rochester Products Division of General Motors. Its first application was the new-for-1965 Chevy 396ci engine.

How do you adjust the choke on a Carter AFB?

If the choke opening is incorrect on the 4 ½” diameter air horn models, bend the choke rod as necessary. On the AFB model with a 5 ½” diameter air horn, make the adjustment by loosening the clamp lever screw. Then rotate the lever on the shaft. Tighten the screw and recheck choke opening.

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What CFM is a Carter ThermoQuad?

Wide-open, the “small” TQ was rated at 800 cfm, while the larger unit spec’d at 850 cfm, blowing away the airflow capacity of any previous OEM Mopar four-barrel. While the ThermoQuad certainly had the flow to support big power, the timing of events curbed its chance at glory as a high performance carb.

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