Watch on. Most of the single step rods were steel. 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. 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. No metering rod gauges are necessary. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. With mineral spirits in the float bowl, Raise the pump. This is an electronic rebuild manual, no physical copy will be provided. As for the pump not squirting.I suspect the pump well isnt filling up. Carter WCFB 4 Barrel Carburetor Float System. To correct, remove carburetor and turn it upside down. Be sure these ports are clear. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. Can't find the answer you're looking for? Adjust by bending unloader lip on throttle shaft lever. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. Seat the intake check by tapping lightly in the hole to form a good seal. Outside top of early Carter tool box with correct decal. Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. Disassembly2. 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 Install the pump connector rod (D) in the outer hole, long stroke. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. If not then clean it and try again. If hard starting still exists change the choke setting to one point lean. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. During high speed operation a vacuum exists at the pump jets. Carter WCFB 4 Barrel Carburetor Float System. 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. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. I. DISASSEMBLY. 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! Ideas?? They work fine when I push hard down on the piston. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . 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. Any pressure put on the needle will damage it. Can't find the answer you're looking for? With throttle valves seated in bores, dust cover and gasket in place. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. but if it runs well you don't really need to make any adjustments. Product information . 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Hold in place and carefully tighten metering rod arm set screw (G). Ethanol gas does not have much if any lubrication. Fast, secure e-book download. cm448. The correct way is to use a fuel pump pressure gauge. 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 Place the choke housing toward the left and remove upper right main body to throttle body screw. They sometimes need trimming. Two ports act as calibrated air bleeds. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). William C. Carter was born in Union City Tennessee in 1884. 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 . 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. Must be made after fast idle adjustment. On the WCFB the check ball is usually at the bottom of the pump well. This eliminates any bog or hesitation when acceleration. When closing the throttle, the accelerator moves up in the pump well. It's highlighted yellow and will look something like this. Carter WCFB 4 Barrel Carburetor Float System. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). 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 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 . The distance from the dust cover boss to the top of the plunger shaft should be 1/2 inch (distance from base to tip of finger on gauge) (C). They know their stuff and provide technical assistance and guides in both paper and video formats. The piston is brass and can be damaged very easily. Share. You need to run wire down all small passages. 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. BBS) and were basically an on/off condition similar to the function of a power valve. Someone has installed it improperly. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! 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. Ultra-Sonic Cleaning3. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. 5:04. Clogged idle tube, or passages in the idle circuit. FREE to our customers that buy a rebuild kit. Hold air horn upright with floats hanging. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. Refer to the Adjustment Data Table for adjustment dimensions. Can't find the answer you're looking for? Gasket between bowl and base is installed backwards (easy to do). 1955 Chevy Hard starting after flooding. a. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Blowing out passages will not get them clean enough. 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. Ultra-Sonic Cleaning3. Then close throttle. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. Some models have a pump relief check in the bottom of the fuel bowl. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. 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. Make sure the air horn contacts the inner wall of the bowl. Put a straight edge across the dust cover as illustrated. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. *New Float6. Carter WCFB Rebuild kits: Rebuild Kits. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. Check the low speed jets to make sure they are clear (#44). When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. One is in the secondary venturi and the other just above the throttle plate. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. 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. To correct, remove carburetor and turn it upside down. 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. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. Make sure these are clear if you have percolation problems. This restricts the flow of fuel. This can be done by looking at the impression on bowl cover gasket. 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 (. A bushing (sorry dont have size) can be permanently installed in the choke vacuum passage in main body casting provides a more positive seal at this point, and prevents fuel from leaking into this passage on left turns and stalling the engine because of too rich a mixture. The fuel is also conducted through a passage in the air horn to the secondary needle seat. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Both valves should be closed. If the secondary throttle plate is staying open, then check the primary shaft dog and spring. Did the old gasket get removed? It needs about 4 lbs of pressure. 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. 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. Do not depress float lip against spring in needle, but let float rest of its own weight. See figure 9F-2. With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. 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 The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. Carter WCFB, 4 barrel metering rod adjustment instructions. I have repeated multiple times with same results. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. Good quality print. You can also check the adjustment by measuring (F) which should be 18/64. 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. Make sure there is a check needle below the main discharge. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. 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. Do not depress float lip against spring in needle, but let float rest of its own weight. Gasket removed. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. Place the choke housing toward the left and remove upper right main body to throttle body screw. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. Examine the viton tip for any marks.Fuel pump pressure could be too high. 1: Carter WCFB idle mixture and speed adustment screw location. Make sure manifold heat control valve is free. Watch this. Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. 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. Each size must be used in its own location. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. Adjust by bending arm (J) on choke trip lever. You may even have to resort to finding a used WCFB carburetor. Disassembly2. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. Solid fuel has the 2 tubes pointing up. Add a couple drops of oil to the leather. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. You cannot go wrong with Mikes carburetor in any way. 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. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . Test the floats in hot water and if you get any bubbles then they are leaking. 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. Carter WCFB, 4 barrel carburetor manual. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. 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. 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 The metering rod adjustment should be done after the pump adjustment. 60 pages of great info. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. If a loss of rpm is noted, or if the engine dies, and air leak exists. Secondarys are somehow stuck open (which amounts to a vacuum leak). The fuel is also conducted through a passage in the air horn to the secondary needle seat. New fuel pumps are especially suspect. 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). 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. 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. Rochester and Carter replacement parts are interchangeable. 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. 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 allows air instead of fuel to be drawn off the pump jets. Everyone Has Started an Engine in the . Run a blunt object around the inside of the leather cup to make sure any coating is broken. Adjust by bending the choke connector rod at lower angle (H). Make sure the ball rattles. Carter WCFB Build Sheets 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. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. 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. The well should fill with fluid. Rotate throttle stop screw E until engine idle at approx 500 RPM. When removing valves they should be marked so that they get put back the same way. 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. Gasket removed as shown A. When I slow down to an idle, my engine runs rough. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. These diagrams include: Fig. When replacing them hold them tight against the wall while tightening the screw. Back out the throttle lever set screw (idle screw) to allow throttle valves to seat in the bores of the carburetor. Carburetors equipped with an adjustable bowl vent require adjustment. Recheck float adjustments. Quick test to see if the accelerator pump is working. 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. What Has Been Done to This Carburetor?1. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. The accelerator pump circuit resides on the primary side of this carburetor. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. You should feel some pressure and fluid should not be bypassing the check needle. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. This is percolation. Back out throttle screw so that the throttle valve close completly. Back out throttle stop screw until throttle valves seat in bores. Older kits 30-70s. The discharge check is seated at this time to prevent air being drawn into the pump well. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. The ends of the connector rod should point to the throttle arm side. Back out throttle lever set screw until throttle valves seat in bores of carburetor. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. Low fuel pump pressure always check you motors manual for the correct pressure. Piston force is too much for linkage. Any bubbles indicates a leak.Make sure the 2 floats are the same height. If not, then find the check ball and make sure it is loose. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. Take the top off and put the pump in the well all the way to the bottom. Coat threads of screw with sealing compound and install it. *New Accelerator Pump5. Air Bled has the venturi tube pointing down into the bore. This box did not have a part number. Loosen the clamp screw A Press. Fig. 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. These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. The WCFB carburetor which came on some of the earliest 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. We will contact you as soon as this product is available. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? The single step rods were used on some of the price leader carburetors (i.e. In this video I show you how to replace the fast idle spring on the WCFB carburetor. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. This is an electronic rebuild manual, no physical copy will be provided. 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. Can't find the answer you're looking for? You are flooding (getting too much gas in the float bowl), caused by these types of problems. All These Part Numbers Interchange Into Our Part No. The adjustment of the pump is important in order to get the required fuel. Coat threads of screw with sealing compound and install it. 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. When done you should see very little daylight around the valve. 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. This check prevents excessive pressure in the discharge passage during acceleration. Make sure the air cleaner gasket does not block the bowl vents. There should be a retainer keeping the check ball in place. Also make sure one isnt rubbing on the side. Other than that, great company to deal with. 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. Blow through the intake check passage to be sure the passage is open. The Solid fuel is the later models BBDContents:00:00 intro00:34 air bled adjustments00:37 air bled float setting01:03 air bled fast idle type I01:25 air bled fast idle type II01:42 air bled fast idle type III01:58 air bled unloader02:24 air bled choke vacuum kick03:01 air bled automatic choke03:16 air bled pump04:08 air bled dashpot04:27 air bled idle speed \u0026 mixture04:58 air bled emission carburetors idle mixture06:00 air bled limiter cap06:36 solid fuel adjustments06:40 solid fuel float setting07:03 solid fuel metering rod07:27 solid fuel accelerator pump07:55 solid fuel bowl vent08:18 solid fuel fast idle cam08:43 solid fuel choke pull-off09:12 solid fuel automatic choke09:24 solid fuel egr dump valve09:46 solid fuel unloader10:08 solid fuel high altitude10:28 solid fuel idle speed \u0026 mixture12:11 solid fuel Limiter cap12:37 solid fuel fst idle12:51 solid fuel throttle positioner13:56 solid fuel vacuum throttle positioner14:31 solid fuel sol-vac15:04 solid fuel dashpot15:28 solid fuel transducer The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. Measure from center top surface of pontoons to air horn. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. With carburetor installed and engine warmed up. Adjust by bending lip of float, not float arm. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. WCFB carburetors, althqugh basically all units are allke. Hold throttle valve wide open and close choke valve as far as possible without forcing. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Can't find the answer you're looking for. Make sure the pontoons are centered and will not rub the bowl sides. 2: Carter AFB idle mixture and speed adjustment screws. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. The mixture screw may be bent, or damaged. Probably not since only one butterfly is open. Put some fluid in theaccelerator pumpwell and press down on the pump. They are staked in the hole. The file is in PDF format, you can download and save/print a copy. . 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 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). Recheck unloader settings with carburetor on the engine. Install the pump connector rod (D) in the outer hole, long stroke.