A total of 222 different WCFB models were made in the years 1952 through 1967. Enter Carb Number. This distance should be exactly 7/16 inch. 1953-62 ENGINE ASSEMBLY & COMPONENTS: AIR CLEANERS, ALTERNATORS, BLOCKS, CARBURETORS, DISTRIBUTORS, FUEL PUMPS, GENERATORS, HEADS, IGNITION SHIELDING, STARTERS, VALVE COVERS, WATER PUMPS & MORE Fuel System - Carburetors, Carburetor Parts, Tags, Fuel Filters, Fuel Pumps, Lines & Accelerator Linkage Carburetors: WCFB Parts & Fittings - Single 4 Barrel / 1X4 Gasket removed as shown A. Screw the mounting bolt in by hand, or use a socket. To adjust the floats, use needle-nose pliers to bend the tangs on the outside of the hinge mechanism, either up or down. Tighten the three screws with a screwdriver. REMANUFACTURED CARTER WCFB CARBURETOR For 1958-1965 Chevrolet Corvette 327 348 – 0 CORE REFUND Carter 4 BBL WCFB with Auto Choke (Climatic choke / Hot. 3) This is where we adjust the mixture. The Carter AFB lacked the bulky weight of the WCFB and offered more airflow capacity, dramatically increasing performance parameters. CARBURETOR SUPER KIT - Carter WCFB #2613/2614 or #2614/3182, 2x4, 270hp, services both carburetors - includes metering rods and jets: 199.95: ... SCREW - idle fuel mixture adjusting, long brass, (2 req. Shut the engine off. Carburetors equipped with an adjustable bowl vent require adjustment. The carburetor will flood. Reconnect the choke lever arm, accelerator pump rod and fast idle rod, in the same fashion you removed them. Look at the position of the choke valve at the top of the carburetor. Refer to your Carter manual for the location of the linkage arms that connect to the top case (air horn) of the carburetor. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. Measure from toe B to air horn. Use a small ruler to measure the distance from the bottom of the air horn gasket surface to the bottom of each float. The Carter Model WCFB carburetor used on the Series 60-70, M/100 engine is a 4-barrel downdraft type which provides the advantages of a compound installation of two 2-barrel carburetors in one compact unit. Press down on vacuum piston link C until metering rods bottom in the carburetor body. This line will route to the vacuum advance fitting on the distributor. Loosen and remove all 10 air horn screws on the top of the carburetor, using a screwdriver. General Description. Both Carter and Rochester engineers determined that, on some applications, the float level in the primary side of the carburetor should be different than in the secondary side of the carburetor. The flat surface of the pump arm should be parallel to the straight edge. Eckler’s Premier Quality Products 57132129 Chevy Carburetor Rebuild Kit Carter WCFB. The drop distance should be exactly 1-1/4 inch. 5: Holley 2300 idle mixture and speed adjustment screws Start engine and … Unscrew them counterclockwise 1-1/2 turns for the initial adjustment. DO NOT apply any pressure on the needle. Connect the negative battery cable temporarily by hand. Measure from center top surface of pontoons to air horn. Hold a straight edge across top of dust cover housing, next to the pump arm. Test run the engine. Make sure the pontoons are centered and will not rub the bowl sides. This carburetor is used in conjunction with a dual exhaust system and higher com- pression heads when higher engine performance is desired. This book specifically covers the 4 bbl. cm448: Ebook carburetor service manual - 341 pages, 272 MBytes, pdf format Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. 2: Carter AFB idle mixture and speed adjustment screws; Fig. Remove the vacuum line at the carburetor base. Be certain you know which pin connects which lever or rod. For example, your engine might require 700 rpm -- turn the idle speed screw until you reach that number on the tachometer. Refer to your Carter manual for the location of the linkage arms that connect to the top case (air horn) of the carburetor. Close the valve very slowly by turning the housing dial until it just touches the carburetor throat sides. Description more details. Hold air horn upright with floats hanging. per carb.) The first step in rebuilding your WCFB is to make absolutely sure that the carburetor is the problem. Connect the negative lead of a tachometer to a bare metal engine source. PHOTO 9 To adjust the choke pull-off opening on this Carter Thermo-Quad requires bending the linkage in the kinked area. Adjust idle screws D to produce a smooth idle of correct speed is obtained. Among the most common adjustments are the carburetor’s air/fuel mixture. Actually, any Chevrolet WCFB, Chrysler dual WCFB, some Chrysler single, Studebaker, Pontiac, and several others go right on the Chevrolet dual-four manifold — and look basically correct. Of the three, the most accurate is the vacuum guage method, best to have one for each carb, but it's not absolutely necessary.Pick one of the 3 below: Turn the same screw counterclockwise until it reaches the highest vacuum number on the gauge, indicated in inches of mercury. ... 1954-1956 Buick Carter WCFB Carburetor *Remanufactured. Use a socket to remove the top air cleaner housing bolt, or remove the butterfly nut by hand. If not closed, loosen the three screws on the circular choke housing and turn the housing dial either clockwise or counterclockwise to open or close the choke valve. Nevertheless, his company soldiered on without him until 1985. All Carter carburetor numbers are followed with the letter 'S'. Disconnect the fast idle rod right next to it, in the same fashion. was introduced in 1952 as a standard feature on the Buick Roadmaster (although Roadmasters could also come with a Stromberg four-barrel). OEM Carter Part Numbers. Rotate throttle stop screw E until engine idle at approx 500 RPM. Turn the other idle mixture screw clockwise until the engine begins to stumble. Remove the vacuum gauge and reconnect the vacuum hose on the carburetor. One of the “gotcha’s” that often bites a novice carburetor rebuilder is float non-interchangability on Carter WCFB and Rochester 4-GC carburetors. Measure float height as illustrated above. Place the vehicle in "Park" or "Neutral," according to your transmission type. Learn how to adjust the pump, metering rod, vapor vent, idle, fast idle, unloader, secondary throttle lockout, float, and fast idle cam clearance. Start the engine and let it warm up to normal operating temperature. The two floats sit on a horizontal plane. Start the engine. Turn the air horn upside down and let the float hang -- this shows the float drop. With carburetor installed and engine warmed up. Most Carter carburetors had the number on a tag only. The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. Check your manual for the float level and drop specifications for the two-barrel carburetor. Connect the end of a vacuum gauge to the vacuum nipple on the carburetor. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. Reset choke housing to 2 points lean. The WCFB was discontinued after the 1967 model year. Fig. CARTER WCFB CARBURETOR FOUR BARREL CARBURETOR GENERAL DESCRIPTION AND OPERATION A Carter WC FB Climatic Control carburetor (Fig. Hold air horn upside down with floats in place and gasket removed. Use a small ruler to measure the distance between the gasket surface of the air horn and the bottom of each float. August 23, 2018 Carter Carburetors Rebuild Kits. Care, Maintenance and Adjustments: 88 : Carter WCFB Carburetor - Four Barrel Carburetor: 41 : Adjustments on the Car: 88 : General Description and Operation: 41 : Accelerator Linkage Adjustment : 88 : Float Systems: 42 : Idle Speed and Misture Adjustment: 89 : Low Speed System: 43 : Fast Idle (On Rear Carburetor Only) 91 Shut the engine off. It is very important to inspect the entire fuel system of your vehicle before installing this carburetor! When We Pre-Set this Adjustment on Carburetor We Make Sure the Choke is Opening the Choke Valve Normally and Make all the Necessary Adjustments on Our Live Engine to leave the Carburetor Ready to Go. 1-C) is available as optional equipment on 8-cylinder engines. The AFB became popular on Ford, General Motors and Chrysler cars. Remove the housing. 1 -C) is available as optional equipment on 8-cylinder engines. Use a small ruler to … Back out throttle screw so that the throttle valve close completly. 327 (#323387526841) CAUTION!!! For a cold engine, the valve should be closed. Shut off the engine. SECTION 3-F 1954 BUICK CARTER 4-BARREL CARBURETOR 3-21 DESCRIPTION AND OPERATION OF 1954 BUICK CARTER 4-BARREL CARBURETOR. The WCFB carburetor which came on some of the earliest Corvettes continued in production through the mid-'60s. This carburetor was made by Carter , The Carter Carburetor Company started in 1909 till 1922 . Tighten the negative battery cable with a socket. Disconnect the tachometer leads. 3: Holley 4150 idle mixture and speed adjustment screws; Fig. Running engineering changes are designated by 'SA', 'SB' and so on, but all carbs with the same number use the same kit. PHOTO 10 It was common for a Q-Jet to have a secondary air valve lockout connected to the choke pull-off. ALAVENTE 1 Barrel Carburetor for Ford Engines 4.9 L, 4.1 L, 3.3 L, F100 F150 F250 F350, Broncos, Fairmont, Granada, Econoline E Series 1965-1985, Carburetor Carter Type YFA 1-Barrel Automatic Choke 4.6 out of 5 stars 39 Carter AFB, AVS and Thermoquad carbs have the number stamped on the base on the passenger side. When We Pre-Set this Adjustment on Carburetor We Make Sure the Choke is Opening the Choke Valve Normally and Make all the Necessary Adjustments on Our Live Engine to leave the Carburetor Ready to Go. His automotive vocation has spanned more than 35 years and he authored the auto repair manual "Auto Repair Shams and Scams" in 1990. Turn the screw counterclockwise until you reach the highest vacuum reading on the gauge. Use a screwdriver to turn each screw clockwise until they gently seat. If not, loosen the choke housing screws and make a small turn of the dial to open the valve completely. Carter WCFB Fast Idle. Bolted the carb on the car; made adjustments and its run flawlessly for hours . With throttle valves seated in bores, dust cover and gasket in place. Re-tighten the choke screws with a screwdriver. There are three common methods of doing this- with vacuum guage(s) , with a tach, or by ear. I found a PDF with some great AFB/WCFB information such as Jet and Rod Sizes, as well as a modification for the 3507 Supercharged AFB. The Carter AFB model introduced in 1957 began to eclipse the WCFB. Known for its chrome finish, the AFB is also known for its user-friendly adjustment points. WCFB . Pull the air horn off and tip it upside-down so you can see the float mechanism. Turn one of the mixture screws clockwise until the engine begins to stumble. Adjust by bending unloader lip on throttle shaft lever. Out of Stock. Each size must be used in its own location. Stevenson holds a P.D.S Toyota certificate, ASE brake certification, Clean Air Act certification and a California smog license. Remove the housing. Watch to see if the choke valve opens completely. Today the owner of a Carter carburetor can make some simple adjustments to achieve peak horsepower and performance. SKU: 458N. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, Imperial Club: How to Adjust the Idle Mixture on you Imperial, Google Docs: How to Overhaul and Tune Your Carter AFB or Edelbrock Four Barrel Carburetor, MRE Books: How to Rebuild and Modify Carter/Edelbrock Carburetors. Turn the air horn upside down and let the float hang -- this shows the float drop. It is a C4-WCFB . 8.95: A3849: 56-61: SCREW KIT - Phillister head type, replaces all Phillister screws on WCFB carb. I have seen a number of different meanings for the WCFB acronym. 1955 Chevy – Loading on Warm Up. 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. Carter WCFB 4 Barrel Carburetor Float System, 1955 Cadillac WCFB By-Pass Idle Air Circuit. You will have only one float and one idle mixture to adjust on the non-four-barrel carburetor, but it requires the same adjustment procedure. This carburetor is used in conjunction with a dual exhaust system and higher com­ pression heads when higher engine performance is desired. CARBURETOR SUPER KIT - Carter WCFB #2626S/2627S or #2627S/3181S, 2x4, 245hp, services both carburetors - includes long idle air screws, fuel strainers and metering rod & jet kit 199.95 A3333 The WCFB was Carter’s first attempt at a four-barrel carburetor. Carter WCFB Carburetor It sits above the mixture screws. Adjust by bending float arms, making sure that both pontoons on each float assembly are the same height and that pontoons are positioned to clear the bowl when assembled. Gasket removed. A Carter WCFB Climatic Control carburetor (Fig. Start the engine. Adjust by bending throttle connector rod at deepest angle as shown. Carter WCFB Rebuild kits: Rebuild Kits. 4: Rochester Quadrajet idle mixture and speed adjustment screw locations; Fig. Adjusting the carburetor to counter this condition will only make things worse. In 1922 the American Car and Foundry manufactured the carburetor till 1984 .Federal Mogul made them till the early 1990s . Use needle-nose pliers to bend the innermost tang (next to the float) to adjust the height. .c. ADJUSTMENTS ON CAR All adjustments with the exception of Fast Idle Adjustment, are included in the "OVERHAUL AND ADJUSTMENTS" procedure and can be done with the carburetor on the car. Refer to your owner's manual for the proper idle rpm setting for your engine. Use pliers to remove the clip that holds the accelerator pump rod to the pump linkage arm -- the accelerator pump plunger sits directly above it. Raise the hood and disconnect the negative battery cable from the battery post. Apply the foot or hand brake. The average hobbyist is quite capable of rebuilding the Carter WCFB carburetor, and achiving excellent results. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. Use a socket to remove the top air cleaner housing bolt, or remove the butterfly nut by hand. Some carburetors had a screw adjustment for the pull-off opening rate. In the 1950 Adjust idle screws D to produce a smooth idle of correct speed is obtained. 1955 Chevy – Hard starting after flooding. Fig. As with the rebuilding of anything, preparation is the key. The Carter carburetor has been around for a very long time. The fast idle can be ad­ justed on the car as follows: 1. All late model WCFB carburetors have three different length bowl cover screws. The AFB was not Carter’s first attempt at a four-barrel – the WCFB (Will Carter Four Barrel – such creative nomenclature!) Rotate throttle stop screw E until engine idle at approx 500 RPM. The choke lever arm operates the the large choke valve in the top of the carburetor. Adjust by bending float arms, making sure both pontoons on each float are the same height. Place the air horn back onto the carburetor throttle bottle and insert the 10 mounting screws. carburetor that came with 8 cylinder engines, which is a Carter WCFB. Connect the other lead of the tachometer to the negative (-) side on the ignition coil. Fuel System: Master Mechanic Carter AFB and WCFB Jet Size and Rebuild Information 09-25-2017, 04:35 PM. Adjust the idle speed screw clockwise or counterclockwise with a screwdriver to set the proper rpm for your engine. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. During past 6 months : Vintage Carter WCFB Carburetor for 1963 Chevrolet & Corvette with 250 hp. Mixture idle Screws Pre-Set: Fuel Economy, Fuel Economy, Fuel Economy, That is Why We Pre-Set this Adjustment. Check throttle linkage to make sure that primary throttle valves come to full wide open position. It was introduced in 1952. Find the idle speed adjustment screw on the throttle linkage cam. Tighten the screws with a screwdriver. $549.95 Price. Read more. Chris Stevenson has been writing since 1988. Remove the hairpin retaining clip that attaches to the choke lever arm, using needle-nose pliers. Adjust both float tangs. Use needle-nose pliers to position the clips in place, in the same orientation as when you removed them. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. Back out throttle stop screw until throttle valves seat in bores. Raise the hood and disconnect the negative battery cable from the battery post. Place the air cleaner housing back on the carburetor air horn. 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 (. Locate the idle mixture screws at the base of the carburetor. With carburetor installed and engine warmed up. DUAL-FOUR WCFB CARBURETORS By Gary Hodges It is not at all uncommon to see Chrysler WCFB dual-four carburetors on a Chevrolet intake manifold. This manual was written by Chevrolet to train mechanics how to remove, install, adjust, and overhaul carburetors. 1: Carter WCFB idle mixture and speed adustment screw location; Fig. Older kits 30-70s. Carburetor Rebuild Kit for Carter WCFB 4 Barrel Buick Cadillac Corvette Pontiac Dodge Ethanol Tolerant Replacement for Marine Carburetors 2365 2628 3585 4.2 out of 5 stars 14 $25.00 The Carter AFB four-barrel carburetor has been among the most popular choices among automotive enthusiasts for decades.

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