carter wcfb carburetor adjustment

They are not meant to fill the hole, only to restrict it. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. Carter WCFB Rebuild kits: Rebuild Kits. The Carter AFB uses weights, and therefore never goes out of adjustment. The main body is partitioned into two compartments (primary and secondary), each containing a double pontoon float and lever assembly and a needle valve and seat. Rotate screw C, or bend tang, until throttle valves are open the distance listed in, With throttle valves held wide open, there should be a clearance between upper edge of choke valve and the inner wall of air horn (. Ideas?? During high speed operation a vacuum exists at the pump jets. Hold air horn upright with floats hanging. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn Check the low speed jets to make sure they are clear (#44). Clogged idle tube, or passages in the idle circuit. The WCFB carburetor which came on some of the earliest When removing valves they should be marked so that they get put back the same way. On 1956 models one point rich. Hold in place and carefully tighten metering rod arm set screw (G). When closing the throttle, the accelerator moves up in the pump well. Did the old gasket get removed? Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. In this video we are going to show you how to do the various adjustments on both the Air Bled and the Solid Fuel type of BBD carburetors. This is an electronic rebuild manual, no physical copy will be provided. *New Accelerator Pump5. Watch on. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. 1955 Chevy Hard starting after flooding. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. We will contact you as soon as this product is available. As the engine gains in RPM, the vacuum drops and the metering rods are pulled out of the main jet allowing more fuel to flow. Coat threads of screw with sealing compound and install it. Carter carburetors fitted with air bleed idle mixture adjustment also have fuel emulsion mixture needles, but these are sealed at the factory to limit the amount of fuel admitted during idle. The discharge check is seated at this time to prevent air being drawn into the pump well. 3: Holley 4150 idle mixture and speed adjustment screws. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. The download link will expire in 30 days. Carter WCFB, 4 barrel carburetor manual. Contact Us Home Blog FAQ's Technical Help My Account LoginRegister Examples of Carb Numbers search 0$0 Carburetor Parts by Make & Model Scroll to see more Aero Coach Carburetor Parts Alfa Romeo American Bantam American General American LaFrance American Motors Nash Rambler Auburn Audi When that is the case, I bend the accel. This restricts the flow of fuel. Hold air horn upside down with floats in place and gasket removed. They sometimes need trimming. The cfm of the Carter WCFB four-barrel carburetor is approximately 400. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. Put some fluid in theaccelerator pumpwell and press down on the pump. Fuel enters the primary side of the carburetor through a strainer screen at the fuel inlet and is directed to the primary needle valve and seat. The well should fill with fluid. Make sure manifold heat control valve is free. features a Carter carburetor identification page and a function that allows you to conduct a search by entering an identification number Factory Carter AFB CFM Ratings Chart Rebuild pics The April 15th, 2019 - The carbs with 1 1 4 venturies and 1 7 16 primary bores and 1 11 16 Adjusting the WCFB float level and float drop. 1963-64 Studebaker Carter AFB 1962-1965 Chevrolet 327 and 409 engine carburetor manual 1958-1968 Lincoln carburetor manual AVS 1966 Chevrolet 327 and Marine Carter AVS carburetors BB Ball and Ball Single Barrel downdraft manual: 1939-60 Chrysler, Dodge, Plymouth Carter BB, BB1, BB1A and BB1D updraft Carter BB for IHC BBD Secondarys are somehow stuck open (which amounts to a vacuum leak). It needs about 4 lbs of pressure. Carter WCFB Carburetor E-Manual Download eWCFB, The file is in PDF format, you can download and save/print a copy, FREE to our customers that buy a rebuild kit. Can you help me out? Carter 2 Barrel BBD Adjustments Mikes Carburetor 21.5K subscribers Subscribe 7.9K views 1 year ago In this video we are going to show you how to do the various adjustments on both the Air. Piston force is too much for linkage. but if it runs well you don't really need to make any adjustments. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. Adjust idle screws D to produce a smooth idle of correct speed is obtained. Refer to the Adjustment Data Table for adjustment dimensions. Back out throttle screw so that the throttle valve close completly. You are flooding (getting too much gas in the float bowl), caused by these types of problems. You can also check the adjustment by measuring (F) which should be 18/64. Fast, secure e-book download. WCFB carburetors, althqugh basically all units are allke. 1: Carter WCFB idle mixture and speed adustment screw location. Watch this. The file is in PDF format, you can download and save/print a copy. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. What Has Been Done to This Carburetor?1. Carter WCFB Fast Idle With carburetor installed and engine warmed up. William C. Carter was born in Union City Tennessee in 1884. Adjust by bending the connector rod at the lower bend (E). Adjust by bending lip of float, not float arm. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Rotate throttle stop screw E until engine idle at approx 500 RPM. You should feel some pressure and fluid should not be bypassing the check needle. The flat surface of the pump arm should be parallel to the straight edge. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. Make sure the ball rattles. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. Good quality print. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. Product information . Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. Adjust by bending throttle connector rod at upper angle (B). This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. Back off the idle screw so that the throttle plates close completely. As the accelerator is released and the primary throttle plates are closed to the idle position, the upward movement of the pump plunger and attached spring bracket exerts tension on the spring and tends to stabilize the float in a level position. *New Float6. The mixture screw may be bent, or damaged. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. Enter Carb Number. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. This can be done by looking at the impression on bowl cover gasket. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. This restricts the flow of fuel. Measure from toe B to air horn. Eckler's Premier Quality Products 57132129 Chevy Carburetor Rebuild Kit Carter WCFB Replacement Kit Includes All Gaskets, Seals, Check Balls, Springs, Accelerator Pump & Needle Valve Read more CARTER 4 Barrel WCFB DUAL CARBURETOR KITS & FUEL FILTERS 1961-65 CHEVROLET 1955-56 DESOTO April 18, 2018 Carter Carburetors Rebuild Kits A stand pipe is provided at both needle seats as an additional trap for foreign material that might prevent the needle valves from seating properly. Ultra-Sonic Cleaning3. Place universal pump travel gauge T109-117S (if you happen to have one as they are not available) inverted on edge of dust cover boss of bowl cover. Carter WCFB Carburetor Catalog Free WCFB Carburetor Manuals These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. Probably around 4- 4.5lbs. There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. Can't find the answer you're looking for? Place the choke housing toward the left and remove upper right main body to throttle body screw. If the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. The flat on top of the pump arm should be parallel to the straight edge. Any pressure put on the needle will damage it. Use a brass drift punch. Someone has installed it improperly. No metering rod gauges are necessary. Seat the discharge check by tapping lightly in the hole to form a good seal. It should not be opened up. Gasket removed as shown A. The most complete document I have found. The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. Find many great new & used options and get the best deals for 19571958 Plymouth Fury Carter WCFB Carburetor *Remanufactured at the best online prices at eBay! At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Hold throttle valve wide open and close choke valve as far as possible without forcing. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Both valves should be closed. Back out throttle lever set screw until throttle valves seat in bores of carburetor. I. DISASSEMBLY. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Be sure these ports are clear. The fuel is also conducted through a passage in the air horn to the secondary needle seat. b. A WGD usually has a pump arm like that of a WCFB (IIRC). Test the floats in hot water and if you get any bubbles then they are leaking. Make sure the air cleaner gasket does not block the bowl vents. As the accelerator is released and the primary throttle plates are closed to the idle position, the upward movement of the pump plunger and attached spring bracket exerts tension on the spring and tends to stabilize the float in a level position. They work fine when I push hard down on the piston. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . cm448. Correct by removing any burrs or nicks. Probably not since only one butterfly is open. If not then clean it and try again. (note) The metering rods will fit into the jets loosely. The metering rod adjustment should be done after the pump adjustment. Blowing out passages will not get them clean enough. Aspringis inserted in the power piston hole, then the piston. Fuel enters the primary side of the carburetor through a strainer screen at the fuel inlet and is directed to the primary needle valve and seat. Each size must be used in its own location. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. A stand pipe is provided at both needle seats as an additional trap for foreign material that might prevent the needle valves from seating properly. Put a straight edge across the dust cover as illustrated. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? Your friend will receive an email from you with a link to our site. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. Adjusting the WCFB float level & float drop: The main body is partitioned into two compartments (primary and secondary), each containing a double pontoon float and lever assembly and a needle valve and seat. While holding the parts as indicated above, rotate the metering rod arm B until the finger on the arm at D contacts the lug on the vacuum piston link C. Primary & secondary float will probably have different measurements. FREE to our customers that buy a rebuild kit. Make sure the pontoons are centered and will not rub the bowl sides. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. Anti-Rust "Dichromate" Finish**4. Quick test to see if the accelerator pump is working. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual.