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Other than that, great company to deal with. Air Bled has the venturi tube pointing down into the bore. Disassembly2. but if it runs well you don't really need to make any adjustments. Outside top of early Carter tool box with correct decal. Recheck unloader settings with carburetor on the engine. Float drop not set, or fuel pump pressure too low. Back off the idle screw so that the throttle plates close completely. 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 The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. With mineral spirits in the float bowl, Raise the pump. DO NOT apply any pressure on the needle. parts. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Coat threads of screw with sealing compound and install it. The balance passage also tends to prevent flooding in the event one of the needles should temporarily become stuck open by maintaining equal fuel level between the two float chambers. Adjust by bending the choke connector rod at lower angle (H). Someone has installed it improperly. They work fine when I push hard down on the piston. Carter WCFB 4 Barrel Accelerator Pump Circuit Carter BB Carburetor Assembly Part 1 of 2 Rochester Quadrajet Idle Tube Removal Tunning Rochestor Quadrajet 4 barrel Carburetor Mark Osborne. We will contact you as soon as this product is available. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. 5:04. This eliminates any bog or hesitation when acceleration. The mixture screw may be bent, or damaged. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. Clogged idle tube, or passages in the idle circuit. In this video I show you how to replace the fast idle spring on the WCFB carburetor. With throttle valves seated in bores, dust cover and gasket in place. 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 2: Carter AFB idle mixture and speed adjustment screws. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. Check your auto manual for the spec, but somewhere around 4-5 lbs would be good.Be sure the power piston is not frozen in one position. Can't find the answer you're looking for. On the WCFB the check ball is usually at the bottom of the pump well. You need to run wire down all small passages. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. On 1956 models one point rich. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. Make sure the pump relief check is clean. Fast, secure e-book download. BBS) and were basically an on/off condition similar to the function of a power valve. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. 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. Refer to the Adjustment Data Table for adjustment dimensions. The file is in PDF format, you can download and save/print a copy. 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. During high speed operation a vacuum exists at the pump jets. Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. The download link will expire in 30 days. Can't find the answer you're looking for? Gasket between bowl and base is installed backwards (easy to do). The Carter AFB uses weights, and therefore never goes out of adjustment. a. Carter WCFB 4 Barrel Carburetor Float System. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. Once engine speed gets high enough, the carburetor vacuum is strong enough to pull fuel through the main jet and the accelerator pump circuit is no longer used. Make sure manifold heat control valve is free. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. Carter WCFB 4 Barrel Adjust Float Mikes Carburetor 21.4K subscribers 5.5K views 4 years ago https://www.carburetor-parts.com is providing this video about adjusting the float level and. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. Ethanol gas does not have much if any lubrication. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Adjust by bending lip of float, not float arm. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. Recheck float adjustments. Must be made after fast idle adjustment. 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 (. Technical Details. Blowing out passages will not get them clean enough. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Carter WCFB 4 Barrel Carburetor Float System. The flat surface of the pump arm should be parallel to the straight edge. The carburetor will flood. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. Adjust by bending arm (J) on choke trip lever. 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. Rotate throttle stop screw E until engine idle at approx 500 RPM. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads.A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. Each float on the float assembly should be at the same height and centered so that they dont rub the side of the float bowl. FREE to our customers that buy a rebuild kit. The adjustment of the pump is important in order to get the required fuel. 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. Adjust by bending float arms, making sure both pontoons on each float are the same height. Seat the discharge check by tapping lightly in the hole to form a good seal. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Is there a pointed check weight in the main discharge hole. Disassembly2. Tyler's Forgotten Car Rescue 22,933 views. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. When removing valves they should be marked so that they get put back the same way. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. This spring is a bit complicated so this video will be very helpful when you change your spring.Find this WCFB spring here: https://www.carburetor-parts.com/wcfb-66d400.htmlFind WCFB parts here:https://www.carburetor-parts.com/wcfb-partscontents:00:0000:42 removing fast idle cam assembly00:56 taking the assembly apart piece by piece01:07 removing the old spring01:22 installing spring02:15 which direction does the pieces go?02:38 assembling the pieces03:16 installing the cam assembly onto the carburetor Carter WCFB, 4 barrel metering rod adjustment instructions. When done you should see very little daylight around the valve. Be careful removing the intake check retainer. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. Adjust by bending unloader lip on throttle shaft lever. Metering rods for the WCFB have been out of production for several years now. Hold in place and carefully tighten metering rod arm set screw (G). Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. You can also check the adjustment by measuring (F) which should be 18/64. The metering rod adjustment should be done after the pump adjustment. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. They are not meant to fill the hole, only to restrict it. With bowl cover assembly inverted and float resting on pin in seated needle, and with gasket removed, the distance from the bowl cover to the top of float should be 7/64. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. Make sure the air horn contacts the inner wall of the bowl. With engine running, check for an air leak at front left corner of carburetor between throttle body and bowl by squirting carb cleaner at this point. To correct, remove carburetor and turn it upside down. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. 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. I. DISASSEMBLY. Each size must be used in its own location. WCFB Carburetor Cutting Out on Left Hand Turn. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! Check any vents to make sure they are open. Rotate throttle stop screw E until engine idle at approx 500 RPM. Measure from toe B to air horn. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. This box did not have a part number. The accelerator pump circuit resides on the primary side of this carburetor. Blow through the intake check passage to be sure the passage is open. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. Aspringis inserted in the power piston hole, then the piston. 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. The WCFB carburetor which came on some of the earliest This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). Carter WCFB Rebuild Kit Selection Carter WCFB Build Sheets Carter WCFB Adjustments Carter WCFB 4 Barrel Carburetor Float System Carter WCFB Accelerator Pump BY CARB TYPE GENERAL TROUBLESHOOTING FAQs INJECTORS PURCHASE PARTS MANUALS BLOG This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. Ideas?? Correct by removing any burrs or nicks. Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. Secondarys are somehow stuck open (which amounts to a vacuum leak). What Has Been Done to This Carburetor?1. Could the float bowl actually be the problem? William C. Carter was born in Union City Tennessee in 1884. 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. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. 1: Carter WCFB idle mixture and speed adustment screw location. Piston force is too much for linkage. . Run a blunt object around the inside of the leather cup to make sure any coating is broken. When I slow down to an idle, my engine runs rough. All These Part Numbers Interchange Into Our Part No. intro Carter WCFB 4 Barrel Carburetor Rebuild Mikes Carburetor 21.5K subscribers Subscribe 51 Share 3.1K views 9 months ago Disassemble & assemble your Carter WCFB 4 barrel. The ends of the connector rod should point to the throttle arm side. To correct, remove carburetor and turn it upside down. When the piston is frozen you may have to drill a small hole in the bottom of the float bowl, just under the piston and hammer it out. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. Test the floats in hot water and if you get any bubbles then they are leaking. With choke valve tightly closed, tighten fast idle adjusting screw (K) (on high step of cam) until there is the clearance as listed on carburetor specification page between throttle valve and bore of carburetor, side opposite idle port. 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! 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 Ethanol leaves deposits behind that acts like corrosion. Ultra-Sonic Cleaning3. Put a straight edge across the dust cover as illustrated. If not, then find the check ball and make sure it is loose. 1st check to make sure the fast idle linkage isnt holding the valves open. Back out the throttle lever set screw (idle screw) to allow throttle valves to seat in the bores of the carburetor. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). Note te larger box, and the number of additional tools from the 1935 set. Probably around 4- 4.5lbs. Carter WCFB 4 Barrel Carburetor Float System. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. Examine the viton tip for any marks.Fuel pump pressure could be too high. Fuel is puffing out nozzles on primary circuit at idle on primary carb of a dual carb set carbs were just rebuilt what is the cause. *New Airhorn Gasket7. Can fill the accelerator chamber with a syringe (through top open passages of forward barrels where choke butterfly is) and the jets will spray gas into forward chambers (and will idle and accelerate for about 15 seconds)but when that gas is depleted, the spraying stops. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. They are staked in the hole. Test the needle by holding it down gently with a brass drift punch. Older kits 30-70s. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. Rochester and Carter replacement parts are interchangeable. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. This restricts the flow of fuel. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. The piston is brass and can be damaged very easily. Measure float height as illustrated above. Back out throttle lever set screw until throttle valves seat in bores of carburetor. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. *New Accelerator Pump5. One of the butterflies is open about 1/8 with the carburetor dis assembled. Can you help me out? There should be a retainer keeping the check ball in place. Adjust by bending throttle connector rod at upper angle (B). If a loss of rpm is noted, or if the engine dies, and air leak exists. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. It's highlighted yellow and will look something like this. Coat threads of screw with sealing compound and install it. 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. Install the pump connector rod (D) in the outer hole, long stroke. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. *New Float6. You should feel some pressure and fluid should not be bypassing the check needle. Place the choke housing toward the left and remove upper right main body to throttle body screw. Can't find the answer you're looking for? 1955 Chevy Hard starting after flooding. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. To prevent fuel from being drawn through the pump circuit, the passage to the pump jets is vented by a cross passage to the carburetor bowl above the fuel level. Please complete the fields below to send your friend a link to this product. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. Do not depress float lip against spring in needle, but let float rest of its own weight. Adjusting the WCFB float level and float drop. What more could you ask for? Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. This allows air instead of fuel to be drawn off the pump jets. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Adjust idle screws D to produce a smooth idle of correct speed is obtained. 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 . If hard starting still exists change the choke setting to one point lean. cm448: Ebook carburetor service manual - 341 pages, 272 MBytes, pdf format. 3: Holley 4150 idle mixture and speed adjustment screws. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . Change the choke setting to index. Good quality print. Some have a coating to give it a better shelf life. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. One is in the secondary venturi and the other just above the throttle plate. Make sure the air cleaner gasket does not block the bowl vents. Watch on. Do not depress float lip against spring in needle, but let float rest of its own weight. Carter WCFB 4 Barrel Adjust Float. Gasket removed as shown A. Check throttle linkage to make sure that primary throttle valves come to full wide open position. Quick test to see if the accelerator pump is working. This is an electronic rebuild manual, no physical copy will be provided. 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 ends of the connector rod should point to the throttle arm side. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? New fuel pumps are especially suspect. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. Anti-Rust "Dichromate" Finish**4. 1955 Pontiac - Loading or Carburetor Flooding It needs about 4 lbs of pressure. Solid fuel has the 2 tubes pointing up. Carter WCFB, 4 barrel carburetor manual. Carter WCFB Build Sheets Test the fuel pump to be sure it isnt putting out too much pressure. *New Main Body Gasket8. WCFB carburetors, althqugh basically all units are allke. Carter WCFB Rebuild kits: Rebuild Kits. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. You may even have to resort to finding a used WCFB carburetor. All late model WCFB carburetors have three different length bowl cover screws. Ultra-Sonic Cleaning3. Everyone Has Started an Engine in the . The most complete document I have found. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. When adjusting the screws doesn't change the RPM then it means there is a problem with either the air, or the amount of fuel. The discharge check is seated at this time to prevent air being drawn into the pump well. Make sure there is a check needle below the main discharge. If not then clean it and try again. 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. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn Carter used metering rods with a single step, 2-step, 3-step, and 4-step. Hold air horn upside down with floats in place and gasket removed. Carter WGD Adjustments Float Level With bowl cover assembly inverted and float resting on pin in seated needle, and with gasket removed, the distance from the bowl cover to the top of float should be 7/64. Any pressure put on the needle will damage it. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. If the secondary throttle plate is staying open, then check the primary shaft dog and spring. 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 Carter WCFB 4 Barrel Carburetor Float System. A float lifter spring, which is connected to the lever arm of the primary float and to a bracket on the accelerator pump plunger, is incorporated to stabilize primary bowl fuel level and prevent float bounce upon sudden stops, or on rough roads (these springs are nowhere to be found). These diagrams include: Fig. Can't find the answer you're looking for? Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link.