These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. Hold air horn upright with floats hanging. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. Make sure the pump relief check is clean. Some models have a pump relief check in the bottom of the fuel bowl. Carter WCFB 4 Barrel Carburetor Float System. 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. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. 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. Outside top of early Carter tool box with correct decal. 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. Carburetors equipped with an adjustable bowl vent require adjustment. 57-65 WCFB 1 x 4 carb - Cover only no spring or spring plate CUD3741 $ 4.99 Gasket - Base WCFB 4GC G402 $ 4.95 Flange Gasket G1164 $ 4.95 WCFB Air Cleaner Gasket . I. DISASSEMBLY. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Back off the idle screw so that the throttle plates close completely. Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. Change the choke setting to index. Blow through the intake check passage to be sure the passage is open. They work fine when I push hard down on the piston. Solid fuel has the 2 tubes pointing up. Disassembly2. Any pressure put on the needle will damage it. 1st check to make sure the fast idle linkage isnt holding the valves open. The carburetor will flood. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. 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. Adjust by bending throttle connector rod at upper angle (B). With carburetor installed and engine warmed up. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . Place the choke housing toward the left and remove upper right main body to throttle body screw. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. Fast, secure e-book download. Be careful removing the intake check retainer. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. 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. Seat the intake check by tapping lightly in the hole to form a good seal. Secondarys are somehow stuck open (which amounts to a vacuum leak). *New Accelerator Pump5. Free shipping for many products! Coat threads of screw with sealing compound and install it. 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. 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. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. Adjust by bending arm (J) on choke trip lever. You need to run wire down all small passages. 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 Hold throttle valve wide open and close choke valve as far as possible without forcing. 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. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. When closing the throttle, the accelerator moves up in the pump well. Gasket between bowl and base is installed backwards (easy to do). 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 These diagrams include: Fig. Put some fluid in theaccelerator pumpwell and press down on the pump. Make sure the air horn contacts the inner wall of the bowl. There should be a retainer keeping the check ball in place. b. Can't find the answer you're looking for? Make sure manifold heat control valve is free. Do not depress float lip against spring in needle, but let float rest of its own weight. This is percolation. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Make sure the ball rattles. . The cfm of the Carter WCFB four-barrel carburetor is approximately 400. Measure from center top surface of pontoons to air horn. On the WCFB the check ball is usually at the bottom of the pump well. 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). This box did not have a part number. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. Carter WCFB Fast Idle With carburetor installed and engine warmed up. Install the pump connector rod (D) in the outer hole, long stroke. Make sure these are clear if you have percolation problems. Watch on. Can you help me out? Tyler's Forgotten Car Rescue 22,933 views. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. Low fuel pump pressure always check you motors manual for the correct pressure. 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 . Hold a straight edge across top of dust cover housing, next to the pump arm. Examine the viton tip for any marks.Fuel pump pressure could be too high. The fuel is also conducted through a passage in the air horn to the secondary needle seat. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). 1955 Pontiac - Loading or Carburetor Flooding This can be done by looking at the impression on bowl cover gasket. Can't find the answer you're looking for? Can't find the answer you're looking for? This check prevents excessive pressure in the discharge passage during acceleration. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. In this video I show you how to replace the fast idle spring on the WCFB carburetor. Recheck unloader settings with carburetor on the engine. Loosen the clamp screw A Press. The flat surface of the pump arm should be parallel to the straight edge. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. The accelerator pump circuit resides on the primary side of this carburetor. 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. Hold in place and carefully tighten metering rod arm set screw (G). Please complete the fields below to send your friend a link to this product. Check any vents to make sure they are open. The single step rods were used on some of the price leader carburetors (i.e. Adjust by bending the choke connector rod at lower angle (H). Adjust by bending lip of float, not float arm. Can't find the answer you're looking for. 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. A WGD usually has a pump arm like that of a WCFB (IIRC). The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. 60 pages of great info. Watch this. Air Bled has the venturi tube pointing down into the bore. 1955 Chevy Hard starting after flooding. You can also check the adjustment by measuring (F) which should be 18/64. Measure float height as illustrated above. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. Gasket removed as shown A. Float drop not set, or fuel pump pressure too low. Check the low speed jets to make sure they are clear (#44). Gasket removed. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. The well should fill with fluid. We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. As for the pump not squirting.I suspect the pump well isnt filling up. 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 Any bubbles indicates a leak.Make sure the 2 floats are the same height. Both valves should be closed. Blowing out passages will not get them clean enough. The piston is brass and can be damaged very easily. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. Test the floats in hot water and if you get any bubbles then they are leaking. When removing valves they should be marked so that they get put back the same way. Take the top off and put the pump in the well all the way to the bottom. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn Carter WCFB Build Sheets 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. Your friend will receive an email from you with a link to our site. a. DO NOT apply any pressure on the needle. You are flooding (getting too much gas in the float bowl), caused by these types of problems. Check throttle linkage to make sure that primary throttle valves come to full wide open position. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Rotate throttle stop screw E until engine idle at approx 500 RPM. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. Measure from toe B to air horn. 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 lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. If not then clean it and try again. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. Ideas?? 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. Adjust by bending unloader lip on throttle shaft lever. You cannot go wrong with Mikes carburetor in any way. 5:04. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? BBS) and were basically an on/off condition similar to the function of a power valve. Hold air horn upside down with floats in place and gasket removed. If not, then find the check ball and make sure it is loose. 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? Older kits 30-70s. Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). The ends of the connector rod should point to the throttle arm side. The discharge check is seated at this time to prevent air being drawn into the pump well. The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. All late model WCFB carburetors have three different length bowl cover screws. Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. If the secondary throttle plate is staying open, then check the primary shaft dog and spring. One of the butterflies is open about 1/8 with the carburetor dis assembled. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. 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. Be sure these ports are clear. 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. Add a couple drops of oil to the leather. 3: Holley 4150 idle mixture and speed adjustment screws. Back out throttle screw so that the throttle valve close completly. *New Airhorn Gasket7. Put a straight edge across the dust cover as illustrated. (note) The metering rods will fit into the jets loosely. Adjust by bending lip of float, not float arm. cm448: Ebook carburetor service manual - 341 pages, 272 MBytes, pdf format. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. Make sure the pontoons are centered and will not rub the bowl sides. 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. WCFB Carburetor Cutting Out on Left Hand Turn. Ethanol gas does not have much if any lubrication. Then close throttle. They know their stuff and provide technical assistance and guides in both paper and video formats. 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. parts. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Note te larger box, and the number of additional tools from the 1935 set. Notice holes from which linkage rods are removed so they can You may even have to resort to finding a used WCFB carburetor. 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. When I slow down to an idle, my engine runs rough. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. WCFB carburetors, althqugh basically all units are allke. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. 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. The correct way is to use a fuel pump pressure gauge. With throttle valves seated in bores, dust cover and gasket in place. 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! However, it is very similar and I found it very useful. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. Adjust idle screws D to produce a smooth idle of correct speed is obtained. All These Part Numbers Interchange Into Our Part No. This restricts the flow of fuel. The most complete document I have found. Did the old gasket get removed? They are not meant to fill the hole, only to restrict it. 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. Someone has installed it improperly. William C. Carter was born in Union City Tennessee in 1884. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. 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 . 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 There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). Pulloffs : CUFWCFB2 $ 0 . Place the choke housing toward the left and remove upper right main body to throttle body screw. They sometimes need trimming. The flat on top of the pump arm should be parallel to the straight edge. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! Seat the discharge check by tapping lightly in the hole to form a good seal. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Could the float bowl actually be the problem? Ultra-Sonic Cleaning3. 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. They are staked in the hole. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. Use a brass drift punch. Good quality print. The mixture screw may be bent, or damaged. Install the pump connector rod (D) in the outer hole, long stroke. See figure 9F-2. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. 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. Sometimes scraping around the edges with an awl will remove the staking. Test the needle by holding it down gently with a brass drift punch. Make sure the air cleaner gasket does not block the bowl vents. 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. Quick test to see if the accelerator pump is working. Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Must be made after fast idle adjustment. Carter WCFB, 4 barrel metering rod adjustment instructions. I have repeated multiple times with same results. The download link will expire in 30 days. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). Blow air through the main discharge to make sure the passage is clear all the way to the pump well. This restricts the flow of fuel. When that is the case, I bend the accel. 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).