There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). Fig. Measure from center top surface of pontoons to air horn. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. Put some fluid in theaccelerator pumpwell and press down on the pump. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). Some models have a pump relief check in the bottom of the fuel bowl. Servicing The Rochester Quadrajet Carburetor - MotorTrend The single step rods were used on some of the price leader carburetors (i.e. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. 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. See figure 9F-2.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). cm448. Your friend will receive an email from you with a link to our site. The well should fill with fluid. 1957 Lincoln Accelerator Pump Carter Wcfb Fluorelastomer Cup Ethanol Two ports act as calibrated air bleeds. However, it is very similar and I found it very useful. What Has Been Done to This Carburetor?1. 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. Any pressure put on the needle will damage it. We will contact you as soon as this product is available. 1: Carter WCFB idle mixture and speed adustment screw location. Make sure there is a check needle below the main discharge. If a loss of rpm is noted, or if the engine dies, and air leak exists. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. 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. Technical Details. You need to run wire down all small passages. The carburetor will flood. Carter WCFB, 4 barrel metering rod adjustment instructions. This is percolation. Make sure the ball rattles. Both valves should be closed. One of the butterflies is open about 1/8 with the carburetor dis assembled. This is an electronic rebuild manual, no physical copy will be provided. 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). Carter WCFB 4 Barrel Accelerator Pump Circuit - YouTube Good quality print. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. During high speed operation a vacuum exists at the pump jets. Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. building a wcfb 2x4 setup | Hot Rod Forum Hold air horn upside down with floats in place and gasket removed. All These Part Numbers Interchange Into Our Part No. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . 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. Rochester and Carter replacement parts are interchangeable. Air Bled has the venturi tube pointing down into the bore. 19591961 Chevrolet Carter WCFB Carburetor Any bubbles indicates a leak.Make sure the 2 floats are the same height. Each size must be used in its own location. Everyone Has Started an Engine in the . Carter WCFB Adjustments - Mikes Carburetor Parts Test the fuel pump to be sure it isnt putting out too much pressure. To correct, remove carburetor and turn it upside down. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . In this video I show you how to replace the fast idle spring on the WCFB carburetor. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. Carter WCFB 4 Barrel Carburetor Float System It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. When that is the case, I bend the accel. This can be done by looking at the impression on bowl cover gasket. Tyler's Forgotten Car Rescue 22,933 views. With mineral spirits in the float bowl, Raise the pump. Install the pump connector rod (D) in the outer hole, long stroke. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. You can also check the adjustment by measuring (F) which should be 18/64. Carter WCFB Rebuild kits: Rebuild Kits. 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. They are staked in the hole. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. To correct, remove carburetor and turn it upside down. 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. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Carter WCFB 4 Barrel Metering Rod - Mikes Carburetor Parts One is in the secondary venturi and the other just above the throttle plate. 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 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. Test the needle by holding it down gently with a brass drift punch. This box did not have a part number. PDF Carter Carb Identification Chart - annualreport.psg.fr We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. 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 I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. The ends of the connector rod should point to the throttle arm side. Is there a pointed check weight in the main discharge hole. Adjusting the WCFB float level and float drop. Can't find the answer you're looking for? 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. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. 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. Other than that, great company to deal with. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. Watch on. 60 pages of great info. Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. 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. 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. Carter WCFB Metering Rods 4,292 views Jul 15, 2018 28 Dislike Share Save Mikes Carburetor 18.7K subscribers https://www.carburetor-part.com is providing this video about the Carter WCFB 4. There may be a blockage in the accelerator pump circuit which would also make it hard to pump.What is the carburetor number so we can make sure you have the correct pump?Polish the pump well with crocus cloth. Measure float height as illustrated above. The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. The download link will expire in 30 days. Notice holes from which linkage rods are removed so they can I have repeated multiple times with same results. Carter WCFB 4 Barrel Accelerator Pump Circuit 3,951 views Jul 13, 2018 33 Dislike Share Mikes Carburetor 20K subscribers https://www.carburetor-parts.com is providing this video about how the. Coat threads of screw with sealing compound and install it. WCFB carburetors, althqugh basically all units are allke. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. Outside top of early Carter tool box with correct decal. Carter WCFB Fast Idle With carburetor installed and engine warmed up. Adjust by bending arm (J) on choke trip lever. 1952 Carter WCFBsetting idle - Discussion Forums Hold throttle valve wide open and close choke valve as far as possible without forcing. 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. It should not be opened up. The setups data is the same. Metering rods for the WCFB have been out of production for several years now. Can you help me out? The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. (note) The metering rods will fit into the jets loosely. The best-selling product Click now to browse 1957 LINCOLN ACCELERATOR PUMP CARTER WCFB FLUORELASTOMER CUP ETHANOL RESITANTIS we ship worldwide cch-rc.com, C $45.04 Free shipping for many products Find many great new & used options and get the best deals for 1957 LINCOLN ACCELERATOR PUMP CARTER WCFB FLUORELASTOMER CUP ETHANOL RESITANTIS at the . You cannot go wrong with Mikes carburetor in any way. When removing valves they should be marked so that they get put back the same way. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. The mixture screw may be bent, or damaged. Carter WCFB 4 Barrel Carburetor Float System. A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. Pulloffs : CUFWCFB2 $ 0 . Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. Carter WCFB Parts Page - carburetion.com Carter WCFB 4 Barrel Carburetor Float System. Sometimes scraping around the edges with an awl will remove the staking. 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. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. 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. When closing the throttle, the accelerator moves up in the pump well. Put a straight edge across the dust cover as illustrated. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. It needs to go up and down easily.Is there aspringunder the power piston?Are the venturi cluster gaskets sitting flat and not curled over? Carter WCFB 4 Barrel Carburetor Float System. See figure 9F-2. Carter Metering Rod Technology - THE CARBURETOR SHOP The file is in PDF format, you can download and save/print a copy. 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. Carter WCFB Technical - Carburetor Parts *New Airhorn Gasket7. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. THE CARBURETOR SHOP / WCFB and 4-GC floats Check throttle linkage to make sure that primary throttle valves come to full wide open position. Master Technician Tool Set (early, circa 1935, for 1923~1935 Carter carburetors all makes - most tools then current) Carter Master Technician Tool Set about 1951. Adjust by bending the connector rod at the lower bend (E). Carter WCFB Metering Rods - YouTube Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! Can't find the answer you're looking for? He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. With carburetor installed and engine warmed up. This check prevents excessive pressure in the discharge passage during acceleration. What more could you ask for? 3: Holley 4150 idle mixture and speed adjustment screws. Hold in place and carefully tighten metering rod arm set screw (G). 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. Please complete the fields below to send your friend a link to this product. It needs about 4 lbs of pressure. Home - Carburetor Manual Ebooks DO NOT apply any pressure on the needle. 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. 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. With throttle valves seated in bores, dust cover and gasket in place. GM Corvette 1963-1982 Idle Speed and Mixture Repair Guide a. Carter WCFB 4 Barrel Adjust Float - YouTube 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). Loosen the clamp screw A Press. 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. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. Adjust by bending unloader lip on throttle shaft lever. Make sure the air cleaner gasket does not block the bowl vents. 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! How Do You Look up Carter Carburetor ID Numbers Online? - Reference.com The most complete document I have found. Enter Carb Number. 19571958 Plymouth Fury Carter WCFB Carburetor *Remanufactured | eBay This restricts the flow of fuel. Product information . Place the choke housing toward the left and remove upper right main body to throttle body screw. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. Make sure the pontoons are centered and will not rub the bowl sides. Carter WCFB, 4 barrel carburetor manual. 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. Can't find the answer you're looking for? I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. BBS) and were basically an on/off condition similar to the function of a power valve. Ethanol gas does not have much if any lubrication. 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 (. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Can't find the answer you're looking for? Aspringis inserted in the power piston hole, then the piston. In my repeated attempts to get the accelerator valve to pump, the car has run for several minutes combinedplenty of time to get the float bowl full. *New Float6. Carter Carburetor Identification - Carburetor kits, parts and manuals 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 idle screws D to produce a smooth idle of correct speed is obtained. Must be made after fast idle adjustment. Solid fuel has the 2 tubes pointing up. 1st check to make sure the fast idle linkage isnt holding the valves open. cm448 Carter WCFB Carburetor Manual - carbkitsource.com When done you should see very little daylight around the valve. The Carter AFB uses weights, and therefore never goes out of adjustment. Could the float bowl actually be the problem? Adjust by bending throttle connector rod at upper angle (B). 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. 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. The manual says to back out the throttle stop screw and hold the fast idle cam in the "choke open" position, then screw in the throttle stop screw until it just contacts the throttle lever arm, then give it another full turn. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. How to Modify a Carter or Edelbrock Carburetor - Muscle Car DIY Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Procedure is as follows: with the throttle lever set screw backed out and throttle valves seated in bores of carburetor, press down on vacumeter link (D) until metering rods bottom at (E). This restricts the flow of fuel. Gasket removed as shown A. Carter WCFB Accelerator Pump - Mikes Carburetor Parts They work fine when I push hard down on the piston. The flat surface of the pump arm should be parallel to the straight edge. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. Carter WCFB Carburetor Manual - Mike's Carburetor Parts Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. They know their stuff and provide technical assistance and guides in both paper and video formats. Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. 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. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. They sometimes need trimming. Install the pump connector rod (D) in the outer hole, long stroke. 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. 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 Make sure manifold heat control valve is free. 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. 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 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. Can't find the answer you're looking for? Carter WCFB 4 Barrel Carburetor Float System. Share. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Rotate throttle stop screw E until engine idle at approx 500 RPM. The adjustment of the pump is important in order to get the required fuel. Carter WCFB 4 Barrel Carburetor Rebuild - YouTube Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). When replacing them hold them tight against the wall while tightening the screw. Carter WGD Adjustments - Mikes Carburetor Parts Check any vents to make sure they are open. 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. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. Seat the discharge check by tapping lightly in the hole to form a good seal. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. Note te larger box, and the number of additional tools from the 1935 set. Carter WCFB Build Sheets Recheck float adjustments. 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 . THE CARBURETOR SHOP / Troubleshooting The accelerator pump circuit resides on the primary side of this carburetor. The accelerator pump circuit resides on the primary side of. WCFB Carburetor Cutting Out on Left Hand Turn. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. 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. but if it runs well you don't really need to make any adjustments. Piston force is too much for linkage. These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. 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 seat. Back out throttle screw so that the throttle valve close completly. Back out throttle lever set screw until throttle valves seat in bores of carburetor. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. If hard starting still exists change the choke setting to one point lean. On 1956 models one point rich. b. This is an electronic rebuild manual, no physical copy will be provided. 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 William C. Carter was born in Union City Tennessee in 1884.