If not, then find the check ball and make sure it is loose. 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 Coat threads of screw with sealing compound and install it. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. 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. 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 should be a retainer keeping the check ball in place. 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. Two ports act as calibrated air bleeds. Note te larger box, and the number of additional tools from the 1935 set. The ends of the connector rod should point to the throttle arm side. Carter WCFB Build Sheets This eliminates any bog or hesitation when acceleration. 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. 1955 Chevy Hard starting after flooding. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. You can also check the adjustment by measuring (F) which should be 18/64. 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? When closing the throttle, the accelerator moves up in the pump well. Make sure manifold heat control valve is free. Blowing out passages will not get them clean enough. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. Ultra-Sonic Cleaning3. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. During high speed operation a vacuum exists at the pump jets. Check the low speed jets to make sure they are clear (#44). Gasket between bowl and base is installed backwards (easy to do). 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. Seat the discharge check by tapping lightly in the hole to form a good seal. Float drop not set, or fuel pump pressure too low. Refer to the Adjustment Data Table for adjustment dimensions. This check prevents excessive pressure in the discharge passage during acceleration. The fuel is also conducted through a passage in the air horn to the secondary needle seat. You need to run wire down all small passages. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . If hard starting still exists change the choke setting to one point lean. Adjust by bending lip of float, not float arm. Good quality print. Test the fuel pump to be sure it isnt putting out too much pressure. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. The single step rods were used on some of the price leader carburetors (i.e. Adjust idle screws D to produce a smooth idle of correct speed is obtained. Gasket removed. 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 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. but if it runs well you don't really need to make any adjustments. Product information . 2: Carter AFB idle mixture and speed adjustment screws. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. They are staked in the hole. Hold air horn upside down with floats in place and gasket removed. I have repeated multiple times with same results. As for the pump not squirting.I suspect the pump well isnt filling up. Air Bled has the venturi tube pointing down into the bore. Back out throttle stop screw until throttle valves seat in bores. 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 . Add a couple drops of oil to the leather. FREE to our customers that buy a rebuild kit. Quick test to see if the accelerator pump is working. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. Press down on vacuum piston link C until metering rods bottom in the carburetor body. If the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. *New Main Body Gasket8. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. Make sure the pump relief check is clean. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. When replacing them hold them tight against the wall while tightening the screw. The discharge check is seated at this time to prevent air being drawn into the pump well. Examine the viton tip for any marks.Fuel pump pressure could be too high. 60 pages of great info. Did the old gasket get removed? 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. Be sure these ports are clear. Can't find the answer you're looking for? This restricts the flow of fuel. Put some fluid in theaccelerator pumpwell and press down on the pump. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. Recheck unloader settings with carburetor on the engine. 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). Carter WCFB Fast Idle With carburetor installed and engine warmed up. Some models have a pump relief check in the bottom of the fuel bowl. Adjust idle screws D to produce a smooth idle of correct speed is obtained. 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 float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. Ethanol gas does not have much if any lubrication. Fig. 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. Seat the intake check by tapping lightly in the hole to form a good seal. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Carburetors equipped with an adjustable bowl vent require adjustment. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). Pulloffs : CUFWCFB2 $ 0 . Carter WCFB 4 Barrel Adjust Float. The correct way is to use a fuel pump pressure gauge. WCFB Carburetor Cutting Out on Left Hand Turn. Hold throttle valve wide open and close choke valve as far as possible without forcing. *New Airhorn Gasket7. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. What more could you ask 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. 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. Measure from center top surface of pontoons to air horn. Adjust by bending throttle connector rod at deepest angle as shown. Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. Each size must be used in its own location. BBS) and were basically an on/off condition similar to the function of a power valve. This can be done by looking at the impression on bowl cover gasket. 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). The download link can be found on your order confirmation email which you will receive as soon as you complete the order. 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. Back off the idle screw so that the throttle plates close completely. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. Free shipping for many products! When done you should see very little daylight around the valve. 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. Make sure the air cleaner gasket does not block the bowl vents. 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. Check throttle linkage to make sure that primary throttle valves come to full wide open position. cm448. The well should fill with fluid. Founded by William Carter in 1909, the Carter Carburetor Company produced units such as the AVS, AFB and 385-CFM WCFB for dozens of years. Rochester and Carter replacement parts are interchangeable. 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. Watch on. Can't find the answer you're looking for? Make sure these are clear if you have percolation problems. 5:04. Is there a pointed check weight in the main discharge hole. Make sure there is a check needle below the main discharge. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. Ideas?? Probably not since only one butterfly is open. Your friend will receive an email from you with a link to our site. cm448: Ebook carburetor service manual - 341 pages, 272 MBytes, pdf format. Other than that, great company to deal with. Piston force is too much for linkage. Notice holes from which linkage rods are removed so they can Must be made after fast idle adjustment. One caveatits my impression that the float bowl is full because when I disconnect the fuel supply line from fuel pump (to card), it has pressure on the line. The carburetor will flood. Adjust by bending float arms, making sure both pontoons on each float are the same height. *New Float6. b. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . 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 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. 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. This is an electronic rebuild manual, no physical copy will be provided. The mixture screw may be bent, or damaged. a. Put a straight edge across the dust cover as illustrated. 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). 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 Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. 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.