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There should be a retainer keeping the check ball in place. It needs about 4 lbs of pressure. Carburetors equipped with an adjustable bowl vent require adjustment. b. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. Notice holes from which linkage rods are removed so they can Carter WCFB 4 Barrel Carburetor Float System. 1955 Pontiac - Loading or Carburetor Flooding Check any vents to make sure they are open. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. WCFB Carburetor Cutting Out on Left Hand Turn. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. 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. Sometimes scraping around the edges with an awl will remove the staking. *New Airhorn Gasket7. Put some fluid in theaccelerator pumpwell and press down on the pump. Any pressure put on the needle will damage it. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. Share. Hold in place and carefully tighten metering rod arm set screw (G). Carter WCFB 4 Barrel Adjust Float. 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. Both valves should be closed. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. You are flooding (getting too much gas in the float bowl), caused by these types of problems. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. 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! Do not depress float lip against spring in needle, but let float rest of its own weight. parts. Make sure the pontoons are centered and will not rub the bowl sides. 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. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. Carter WCFB Build Sheets William C. Carter was born in Union City Tennessee in 1884. Adjusting the WCFB float level and float drop. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). If a loss of rpm is noted, or if the engine dies, and air leak exists. If hard starting still exists change the choke setting to one point lean. Probably not since only one butterfly is open. Place the choke housing toward the left and remove upper right main body to throttle body screw. During high speed operation a vacuum exists at the pump jets. Pulloffs : CUFWCFB2 $ 0 . The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. Measure from toe B to air horn. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. It should not be opened up. 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. The flat on top of the pump arm should be parallel to the straight edge. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). Back out the throttle lever set screw (idle screw) to allow throttle valves to seat in the bores of the carburetor. New fuel pumps are especially suspect. The most complete document I have found. When closing the throttle, the accelerator moves up in the pump well. Carter WCFB, 4 barrel carburetor manual. Secondarys are somehow stuck open (which amounts to a vacuum leak). WCFB carburetors, althqugh basically all units are allke. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. 1st check to make sure the fast idle linkage isnt holding the valves open. This allows air instead of fuel to be drawn off the pump jets. In this video I show you how to replace the fast idle spring on the WCFB carburetor. Technical Details. Anti-Rust "Dichromate" Finish**4. Older kits 30-70s. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. 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 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. *New Accelerator Pump5. Ultra-Sonic Cleaning3. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. Two ports act as calibrated air bleeds. With mineral spirits in the float bowl, Raise the pump. Rotate throttle stop screw E until engine idle at approx 500 RPM. 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 Test the needle by holding it down gently with a brass drift punch. Recheck float adjustments. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. You may even have to resort to finding a used WCFB carburetor. It's highlighted yellow and will look something like this. To correct, remove carburetor and turn it upside down. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Disassembly2. Some models have a pump relief check in the bottom of the fuel bowl. Carter WCFB 4 Barrel Carburetor Float System. 2: Carter AFB idle mixture and speed adjustment screws. 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? This check prevents excessive pressure in the discharge passage during acceleration. 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? 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. 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. The well should fill with fluid. The adjustment of the pump is important in order to get the required fuel. Each size must be used in its own location. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. 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. Hold air horn upside down with floats in place and gasket removed. Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. Product information . cm448: Ebook carburetor service manual - 341 pages, 272 MBytes, pdf format. Put a straight edge across the dust cover as illustrated. Blowing out passages will not get them clean enough. 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). The discharge check is seated at this time to prevent air being drawn into the pump well. 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. Adjust idle screws D to produce a smooth idle of correct speed is obtained. 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. Can't find the answer you're looking for. When that is the case, I bend the accel. When done you should see very little daylight around the valve. Make sure the pump relief check is clean. a. 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 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. Adjust idle screws D to produce a smooth idle of correct speed is obtained. With throttle valves seated in bores, dust cover and gasket in place. but if it runs well you don't really need to make any adjustments. 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. Coat threads of screw with sealing compound and install it. Measure float height as illustrated above. Refer to the Adjustment Data Table for adjustment dimensions. Ultra-Sonic Cleaning3. The metering rod adjustment should be done after the pump adjustment. As for the pump not squirting.I suspect the pump well isnt filling up. 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. Clogged idle tube, or passages in the idle circuit. Make sure the air horn contacts the inner wall of the bowl. Is there a pointed check weight in the main discharge hole. Watch on. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. Place the choke housing toward the left and remove upper right main body to throttle body screw. 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. No metering rod gauges are necessary. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Quick test to see if the accelerator pump is working. Can't find the answer you're looking for? Be careful when removing the top of the carburetor that you don't force things and break the piston lever. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . The accelerator pump circuit resides on the primary side of. Examine the viton tip for any marks.Fuel pump pressure could be too high. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn Disassembly2. 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. Adjust by bending unloader lip on throttle shaft lever. Enter Carb Number. 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 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. There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). We will contact you as soon as this product is available. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. See figure 9F-2. Run a blunt object around the inside of the leather cup to make sure any coating is broken. Make sure the air cleaner gasket does not block the bowl vents. Be careful removing the intake check retainer. Take the top off and put the pump in the well all the way to the bottom. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. Back off the idle screw so that the throttle plates close completely. Can't find the answer you're looking for? Hold air horn upright with floats hanging. Tyler's Forgotten Car Rescue 22,933 views. Adjust by bending the connector rod at the lower bend (E). The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! 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 WCFB carburetor which came on some of the earliest Ethanol leaves deposits behind that acts like corrosion. The piston is brass and can be damaged very easily. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. 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. When replacing them hold them tight against the wall while tightening the screw. Seat the intake check by tapping lightly in the hole to form a good seal. Check throttle linkage to make sure that primary throttle valves come to full wide open position. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. Hold throttle valve wide open and close choke valve as far as possible without forcing. The accelerator pump circuit resides on the primary side of this carburetor. All These Part Numbers Interchange Into Our Part No. On 1956 models one point rich. 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. We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. 5:04. 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. One is in the secondary venturi and the other just above the throttle plate. 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 (. 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.