Adjust by bending unloader lip on throttle shaft lever. With throttle valves seated in bores, dust cover and gasket in place. Ultra-Sonic Cleaning3. 5:04. 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. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. 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. Tyler's Forgotten Car Rescue 22,933 views. 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 know their stuff and provide technical assistance and guides in both paper and video formats. This is percolation. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. 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 . . Low fuel pump pressure always check you motors manual for the correct pressure. Disassembly2. Carter WCFB Fast Idle With carburetor installed and engine warmed up. Gasket removed. Check any vents to make sure they are open. Test the needle by holding it down gently with a brass drift punch. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). Carter WCFB, 4 barrel metering rod adjustment instructions. Any bubbles indicates a leak.Make sure the 2 floats are the same height. This box did not have a part number. They work fine when I push hard down on the piston. Fig. Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. 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). Back out throttle lever set screw until throttle valves seat in bores of carburetor. Make sure these are clear if you have percolation problems. It's highlighted yellow and will look something like this. 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 Adjust by bending the choke connector rod at lower angle (H). 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. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. Make sure the ball rattles. Fig. When I slow down to an idle, my engine runs rough. This allows air instead of fuel to be drawn off the pump jets. *New Main Body Gasket8. DO NOT apply any pressure on the needle. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. When closing the throttle, the accelerator moves up in the pump well. Measure from center top surface of pontoons to air horn. Make sure the air cleaner gasket does not block the bowl vents. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. If hard starting still exists change the choke setting to one point lean. 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. 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. 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 Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. Use a brass drift punch. These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. If a loss of rpm is noted, or if the engine dies, and air leak exists. 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. *New Float6. Watch this. 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). 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. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. Do not depress float lip against spring in needle, but let float rest of its own weight. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Then close throttle. b. Can't find the answer you're looking for? 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. Seat the intake check by tapping lightly in the hole to form a good seal. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. 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. 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! Carter WCFB 4 Barrel Carburetor Float System. To correct, remove carburetor and turn it upside down. Piston force is too much for linkage. Each size must be used in its own location. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . Carter WCFB, 4 barrel carburetor manual. 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. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. Be careful removing the intake check retainer. Measure from toe B to air horn. Hold a straight edge across top of dust cover housing, next to the pump arm. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. 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 Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. With mineral spirits in the float bowl, Raise the pump. 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 (. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Adjust by bending the connector rod at the lower bend (E). 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. Test the fuel pump to be sure it isnt putting out too much pressure. 1: Carter WCFB idle mixture and speed adustment screw location. However, it is very similar and I found it very useful. 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. BBS) and were basically an on/off condition similar to the function of a power valve. Make sure there is a check needle below the main discharge. The flat on top of the pump arm should be parallel to the straight edge. Gasket removed as shown A. On the WCFB the check ball is usually at the bottom of the pump well. Probably not since only one butterfly is open. 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. 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. Coat threads of screw with sealing compound and install it. The ends of the connector rod should point to the throttle arm side. 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 parts. What more could you ask for? Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Change the choke setting to index. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. (note) The metering rods will fit into the jets loosely. Make sure the pump relief check is clean. 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. 1955 Chevy Hard starting after flooding. This check prevents excessive pressure in the discharge passage during acceleration. Can't find the answer you're looking for. You cannot go wrong with Mikes carburetor in any way. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Be sure these ports are clear. Notice holes from which linkage rods are removed so they can Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. Float drop not set, or fuel pump pressure too low. 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. *New Accelerator Pump5. 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. 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). 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. 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. Both valves should be closed. Can you help me out? Install the pump connector rod (D) in the outer hole, long stroke. 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. Blow through the intake check passage to be sure the passage is open. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. Place the choke housing toward the left and remove upper right main body to throttle body screw. Your friend will receive an email from you with a link to our site. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. The fuel is also conducted through a passage in the air horn to the secondary needle seat. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. 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. WCFB Carburetor Cutting Out on Left Hand Turn. The most complete document I have found. Back off the idle screw so that the throttle plates close completely. The piston is brass and can be damaged very easily. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. Could the float bowl actually be the problem? Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. Clogged idle tube, or passages in the idle circuit. 1st check to make sure the fast idle linkage isnt holding the valves open. They are staked in the hole. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. Add a couple drops of oil to the leather. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. a. 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). Anti-Rust "Dichromate" Finish**4. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. Some models have a pump relief check in the bottom of the fuel bowl. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. Carter WCFB Rebuild kits: Rebuild Kits. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. This can be done by looking at the impression on bowl cover gasket. If not, then find the check ball and make sure it is loose. You can also check the adjustment by measuring (F) which should be 18/64. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. 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. Place the choke housing toward the left and remove upper right main body to throttle body screw. One of the butterflies is open about 1/8 with the carburetor dis assembled. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. Coat threads of screw with sealing compound and install it. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). To correct, remove carburetor and turn it upside down. Carter WCFB 4 Barrel Carburetor Float System. Carter WCFB Build Sheets In this video I show you how to replace the fast idle spring on the WCFB carburetor. I. DISASSEMBLY. See figure 9F-2. There should be a retainer keeping the check ball in place. They sometimes need trimming. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. 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. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog.
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