• Gas Dripping From Venturi

    Gas dripping from the venturi can happen on most carburetors, but we will talk about the Mercarb and the Rochester 2 Jet, 2 barrel. The only time gas should come out of the venturi is when you pump the gas throttle. That is when an extra squirt of gas is…

  • Carter Thermoquad

    Throughout the 1970s and early 80s, the Carter Thermoquad (TQ) was a popular carburetor found on many Chrysler products as standard equipment, and on some Ford Motor Company vehicles, as well. The earliest version was in the Competition Series first released in 1969. Production versions followed in 1971 on Chrysler’s…

  • Carter AFB Flooding Problem

    Gas is leaking out of the main throttle shaft, or gas is coming out of the top vents, or you get black smoke while idling. All of these are indications of too much gas, or flooding. Here is a list of possible causes in no order of importance. Most float…

  • The B&B or Ball & Ball Accelerator Circuit Gone Bad

            Here is the question. When I accelerate the engine bogs down, or dies. Assuming the electrical system is OK, because the distributor advance will act the same way, so check that out also. The first thing to do is turn the engine off and look down…

  • Testing the Holley 94 Accelerator Circuit

    When I’m rebuilding my carburetors, I will usually test the accelerator pump circuit before closing up the float bowl. The Holley 94 carburetor uses a check ball in the accelerator pump well and I want to make sure it doesn’t need seating. 1st, you need to know why the check…

  • Stromberg WW Throttle Body

    Stromberg WW carburetors are notorious¬† for having worn throttle shafts. Unfortunately unlike most carburetors, the WW wears out the shaft instead of the throttle body.¬† As I mentioned, most carburetors wear the throttle body and while not a simple process, re-bushing the throttle body on these carburetors is very doable…

  • Holley 1940 Float

    The Holley 1940 carburetor originally used a Nitropyl type of float and because they tend to absorb fuel over time, we recommend that they be replaced at each carburetor rebuild. Once a Nitrophyl float has absorbed fuel it will become too heavy and allow more fuel to enter the bowl…

  • Rochester B, BC 1 Barrel Carburetor Identification

    This carburetor is one of the hardest carburetors to identify when it comes to purchasing rebuild kits. Fortunately there are ways to find the original carburetor number, or worst case and with a little work, you can at least get the correct carburetor kit. Identification. Rochester used a tag attached…

  • My Carburetor is Leaking at the Throttle Shaft

    I hear this quite often. Customers are usually looking for some kind of kit to seal the shaft, but the shaft isn’t the problem. What is most likely happening is that there is too much fuel entering the venturi, running down the inside of the carburetor, hitting the throttle valve,…

  • Buying a Carburetor Kit

    When finding the right carburetor kit for your carburetor, it is important not to rely on the vehicle application, but to use the carburetor number. It is easy for someone to sell you any kit that is close, but they aren’t paying the shipping, you are, and who needs the…