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The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. The Carter AFB uses weights, and therefore never goes out of adjustment. Make sure manifold heat control valve is free. *New Accelerator Pump5. Carter WCFB 4 Barrel Adjust Float. Good quality print. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. 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 . Note te larger box, and the number of additional tools from the 1935 set. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. If not, then find the check ball and make sure it is loose. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. The flat surface of the pump arm should be parallel to the straight edge. The fuel is also conducted through a passage in the air horn to the secondary needle seat. 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 (. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). This is percolation. Measure float height as illustrated above. Some have a coating to give it a better shelf life. What Has Been Done to This Carburetor?1. Probably around 4- 4.5lbs. The discharge check is seated at this time to prevent air being drawn into the pump well. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. 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). To correct, remove carburetor and turn it upside down. Make sure the pontoons are centered and will not rub the bowl sides. The metering rod adjustment should be done after the pump adjustment. WCFB carburetors, althqugh basically all units are allke. Please complete the fields below to send your friend a link to this product. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. We will contact you as soon as this product is available. When that is the case, I bend the accel. Secondarys are somehow stuck open (which amounts to a vacuum leak). (note) The metering rods will fit into the jets loosely. Gasket between bowl and base is installed backwards (easy to do). The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. If not then clean it and try again. Solid fuel has the 2 tubes pointing up. 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. 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. Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). What more could you ask for? He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. I. DISASSEMBLY. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. *New Main Body Gasket8. A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. New fuel pumps are especially suspect. 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 Notice holes from which linkage rods are removed so they can Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Carter WCFB 4 Barrel Carburetor Float System. 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. Any bubbles indicates a leak.Make sure the 2 floats are the same height. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. 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 . These diagrams include: Fig. 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. Make sure the air cleaner gasket does not block the bowl vents. Air Bled has the venturi tube pointing down into the bore. Sometimes scraping around the edges with an awl will remove the staking. Can't find the answer you're looking for? If the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. Enter Carb Number. Quick test to see if the accelerator pump is working. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. They sometimes need trimming. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. One is in the secondary venturi and the other just above the throttle plate. Carter WCFB 4 Barrel Carburetor Float System. Gasket removed. 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. Technical Details. Install the pump connector rod (D) in the outer hole, long stroke. 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. Hold air horn upright with floats hanging. Can't find the answer you're looking for? Did the old gasket get removed? Carter WCFB 4 Barrel Carburetor Float System. Recheck unloader settings with carburetor on the engine. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. 1955 Pontiac - Loading or Carburetor Flooding The download link will expire in 30 days. The WCFB carburetor which came on some of the earliest Two ports act as calibrated air bleeds. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. The flat on top of the pump arm should be parallel to the straight edge. Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. As for the pump not squirting.I suspect the pump well isnt filling up. 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. Someone has installed it improperly. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. 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. 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. When closing the throttle, the accelerator moves up in the pump well. 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. On 1956 models one point rich. 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 Then close throttle. Adjust by bending the choke connector rod at lower angle (H). Check the low speed jets to make sure they are clear (#44). The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. Recheck float adjustments. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. Could the float bowl actually be the problem? 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. Metering rods for the WCFB have been out of production for several years now. Also make sure one isnt rubbing on the side. BBS) and were basically an on/off condition similar to the function of a power valve. Adjust by bending the connector rod at the lower bend (E). Test the floats in hot water and if you get any bubbles then they are leaking. Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. Carter WCFB Fast Idle With carburetor installed and engine warmed up. Watch on. It's highlighted yellow and will look something like this. Watch this. Disassembly2. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn 5:04. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. The adjustment of the pump is important in order to get the required fuel. Adjust by bending throttle connector rod at upper angle (B). With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. William C. Carter was born in Union City Tennessee in 1884. 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). 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. 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. Fig. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. 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. If a loss of rpm is noted, or if the engine dies, and air leak exists. This is an electronic rebuild manual, no physical copy will be provided. 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. 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. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). Check any vents to make sure they are open. This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. Refer to the Adjustment Data Table for adjustment dimensions. Fig. Loosen the clamp screw A Press. 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. A WGD usually has a pump arm like that of a WCFB (IIRC). When done you should see very little daylight around the valve. Rotate throttle stop screw E until engine idle at approx 500 RPM. Free shipping for many products! Product information . Place the choke housing toward the left and remove upper right main body to throttle body screw. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. cm448: Ebook carburetor service manual - 341 pages, 272 MBytes, pdf format. Be careful removing the intake check retainer. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. Some models have a pump relief check in the bottom of the fuel bowl. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. 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. Examine the viton tip for any marks.Fuel pump pressure could be too high. Adjusting the WCFB float level and float drop. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. 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. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . 1st check to make sure the fast idle linkage isnt holding the valves open. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. Must be made after fast idle adjustment. 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. Carburetors equipped with an adjustable bowl vent require adjustment. Share. Each size must be used in its own location. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. Carter WCFB, 4 barrel metering rod adjustment instructions. Run a blunt object around the inside of the leather cup to make sure any coating is broken. Make sure these are clear if you have percolation problems. Do not depress float lip against spring in needle, but let float rest of its own weight. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. Adjust by bending unloader lip on throttle shaft lever. but if it runs well you don't really need to make any adjustments. 2: Carter AFB idle mixture and speed adjustment screws. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. All late model WCFB carburetors have three different length bowl cover screws. Place the choke housing toward the left and remove upper right main body to throttle body screw. The mixture screw may be bent, or damaged. Test the fuel pump to be sure it isnt putting out too much pressure. This is an electronic rebuild manual, no physical copy will be provided. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. The ends of the connector rod should point to the throttle arm side. The correct way is to use a fuel pump pressure gauge. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. Pulloffs : CUFWCFB2 $ 0 . Coat threads of screw with sealing compound and install it. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. Adjust by bending throttle connector rod at deepest angle as shown. 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 adjustment of the pump is important in order to get the required fuel. Can't find the answer you're looking for. 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. Blowing out passages will not get them clean enough. Rochester and Carter replacement parts are interchangeable. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Hold throttle valve wide open and close choke valve as far as possible without forcing. When replacing them hold them tight against the wall while tightening the screw. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. One of the butterflies is open about 1/8 with the carburetor dis assembled. There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). The setups data is the same. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. This restricts the flow of fuel. There should be a retainer keeping the check ball in place. Most of the single step rods were steel. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Can't find the answer you're looking for? *New Airhorn Gasket7. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Ethanol leaves deposits behind that acts like corrosion. Low fuel pump pressure always check you motors manual for the correct pressure. Gasket removed as shown A. 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 accelerator pump circuit resides on the primary side of this carburetor. Fast, secure e-book download. To correct, remove carburetor and turn it upside down. Ethanol gas does not have much if any lubrication. With throttle valves seated in bores, dust cover and gasket in place. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. *New Float6. 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. You are flooding (getting too much gas in the float bowl), caused by these types of problems. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. 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. I have repeated multiple times with same results. During high speed operation a vacuum exists at the pump jets. Carter WCFB Rebuild kits: Rebuild Kits. Rotate throttle stop screw E until engine idle at approx 500 RPM. When I slow down to an idle, my engine runs rough. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. The ends of the connector rod should point to the throttle arm side. 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. 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. Tyler's Forgotten Car Rescue 22,933 views. Older kits 30-70s. Be sure these ports are clear. Hold a straight edge across top of dust cover housing, next to the pump arm. 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. The well should fill with fluid. Back out throttle stop screw until throttle valves seat in bores. . 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 the air horn contacts the inner wall of the bowl. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. b. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. This restricts the flow of fuel. Measure from toe B to air horn. They know their stuff and provide technical assistance and guides in both paper and video formats. 3: Holley 4150 idle mixture and speed adjustment screws. The file is in PDF format, you can download and save/print a copy. 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. On the WCFB the check ball is usually at the bottom of the pump well. Can't find the answer you're looking for? Adjust by bending float arms, making sure both pontoons on each float are the same height. They are staked in the hole. 1955 Chevy Hard starting after flooding. Change the choke setting to index. In this video I show you how to replace the fast idle spring on the WCFB carburetor. Do not depress float lip against spring in needle, but let float rest of its own weight. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. Seat the discharge check by tapping lightly in the hole to form a good seal. 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. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. With carburetor installed and engine warmed up. cm448. 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. Carter WCFB Build Sheets Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . DO NOT apply any pressure on the needle. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. 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. Disassembly2. Ideas?? 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. This allows air instead of fuel to be drawn off the pump jets. With mineral spirits in the float bowl, Raise the pump. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. Use a brass drift punch. Probably not since only one butterfly is open. 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. Hold air horn upside down with floats in place and gasket removed. Make sure there is a check needle below the main discharge. Adjust idle screws D to produce a smooth idle of correct speed is obtained. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. This can be done by looking at the impression on bowl cover gasket. However, it is very similar and I found it very useful. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. Ultra-Sonic Cleaning3. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. The carburetor will flood. The single step rods were used on some of the price leader carburetors (i.e. 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. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. All These Part Numbers Interchange Into Our Part No. You need to run wire down all small passages. Make sure the pump relief check is clean. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . 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. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? Blow through the intake check passage to be sure the passage is open. Outside top of early Carter tool box with correct decal. Put a straight edge across the dust cover as illustrated. 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! The piston is brass and can be damaged very easily. parts. The fuel is also conducted through a passage in the air horn to the secondary needle seat. 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. Adjust idle screws D to produce a smooth idle of correct speed is obtained.