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You are flooding (getting too much gas in the float bowl), caused by these types of problems. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. I have repeated multiple times with same results. Do not depress float lip against spring in needle, but let float rest of its own weight. Seat the intake check by tapping lightly in the hole to form a good seal. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. 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 mixture screw may be bent, or damaged. The discharge check is seated at this time to prevent air being drawn into the pump well. Carter WCFB 4 Barrel Carburetor Float System. This restricts the flow of fuel. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). Carter WCFB 4 Barrel Metering Rod - Mikes Carburetor Parts This allows air instead of fuel to be drawn off the pump jets. Use a brass drift punch. Carter WCFB Parts Page - carburetion.com Back out throttle lever set screw until throttle valves seat in bores of carburetor. *New Float6. You cannot go wrong with Mikes carburetor in any way. Put a straight edge across the dust cover as illustrated. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. Make sure the pump relief check is clean. Technical Details. *New Accelerator Pump5. Hold a straight edge across top of dust cover housing, next to the pump arm. 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. Test the fuel pump to be sure it isnt putting out too much pressure. Can't find the answer you're looking for? WCFB Carburetor Cutting Out on Left Hand Turn. Carter WCFB 4 Barrel Accelerator Pump Circuit - YouTube Recheck float adjustments. This is an electronic rebuild manual, no physical copy will be provided. 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. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. When I slow down to an idle, my engine runs rough. Install the pump connector rod (D) in the outer hole, long stroke. You should feel some pressure and fluid should not be bypassing the check needle. As for the pump not squirting.I suspect the pump well isnt filling up. Product information . Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . Take the top off and put the pump in the well all the way to the bottom. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. Make sure the air horn contacts the inner wall of the bowl. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. 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. 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. Probably around 4- 4.5lbs. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. Ultra-Sonic Cleaning3. Adjust by bending unloader lip on throttle shaft lever. Make sure manifold heat control valve is free. 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. Carter Metering Rod Technology - THE CARBURETOR SHOP 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. PDF Carter Carb Identification Chart - annualreport.psg.fr 1: Carter WCFB idle mixture and speed adustment screw location. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. *New Main Body Gasket8. When done you should see very little daylight around the valve. Press down on vacuum piston link C until metering rods bottom in the carburetor body. 2: Carter AFB idle mixture and speed adjustment screws. No metering rod gauges are necessary. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. Coat threads of screw with sealing compound and install it. Rochester and Carter replacement parts are interchangeable. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. Carter WCFB 4 Barrel Carburetor Float System The single step rods were used on some of the price leader carburetors (i.e. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. The Carter AFB uses weights, and therefore never goes out of adjustment. It's highlighted yellow and will look something like this. 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. The adjustment of the pump is important in order to get the required fuel. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! Test the needle by holding it down gently with a brass drift punch. Fast, secure e-book download. 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 . Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. Can't find the answer you're looking for? The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. You need to run wire down all small passages. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. Free shipping for many products! THE CARBURETOR SHOP / Troubleshooting Seat the discharge check by tapping lightly in the hole to form a good seal. Measure from toe B to air horn. 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. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Make sure there is a check needle below the main discharge. Adjust by bending lip of float, not float arm. 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. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. With throttle valves seated in bores, dust cover and gasket in place. During high speed operation a vacuum exists at the pump jets. On 1956 models one point rich. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. The adjustment of the pump is important in order to get the required fuel. Install the pump connector rod (D) in the outer hole, long stroke. Disassembly2. Two ports act as calibrated air bleeds. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Make sure these are clear if you have percolation problems. Any bubbles indicates a leak.Make sure the 2 floats are the same height. Measure float height as illustrated above. Some have a coating to give it a better shelf life. 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 . 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. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. Carter Carburetor Identification - Carburetor kits, parts and manuals Fig. Could the float bowl actually be the problem? Carter used metering rods with a single step, 2-step, 3-step, and 4-step. BBS) and were basically an on/off condition similar to the function of a power valve. Carter WCFB Accelerator Pump - Mikes Carburetor Parts See figure 9F-2. 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. You may even have to resort to finding a used WCFB carburetor. REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet cm448. 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). 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. Please complete the fields below to send your friend a link to this product. Back out throttle screw so that the throttle valve close completly. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. To correct, remove carburetor and turn it upside down. This can be done by looking at the impression on bowl cover gasket. How Do You Look up Carter Carburetor ID Numbers Online? - Reference.com I. DISASSEMBLY. Adjust by bending arm (J) on choke trip lever. How to Modify a Carter or Edelbrock Carburetor - Muscle Car DIY Sometimes scraping around the edges with an awl will remove the staking. 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. Place the choke housing toward the left and remove upper right main body to throttle body screw. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. Carter WCFB Technical - Carburetor Parts 1957 Lincoln Accelerator Pump Carter Wcfb Fluorelastomer Cup Ethanol Hold throttle valve wide open and close choke valve as far as possible without forcing. 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. Secondarys are somehow stuck open (which amounts to a vacuum leak). (note) The metering rods will fit into the jets loosely. When that is the case, I bend the accel. 60 pages of great info. However, it is very similar and I found it very useful. Adjust by bending the connector rod at the lower bend (E). 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. Home - Carburetor Manual Ebooks 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. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. cm448: Ebook carburetor service manual - 341 pages, 272 MBytes, pdf format. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. . Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). Enter Carb Number. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. 1955 Chevy Hard starting after flooding. Good quality print. 19571958 Plymouth Fury Carter WCFB Carburetor *Remanufactured | eBay Carter WCFB Adjustments - Mikes Carburetor Parts Add a couple drops of oil to the leather. It should not be opened up. Ultra-Sonic Cleaning3. Loosen the clamp screw A Press. Coat threads of screw with sealing compound and install it. Everyone Has Started an Engine in the . Carter WCFB 4 Barrel Carburetor Someone has installed it improperly. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. The setups data is the same. Back off the idle screw so that the throttle plates close completely. Probably not since only one butterfly is open. 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 New fuel pumps are especially suspect. Carter WCFB Fast Idle With carburetor installed and engine warmed up. Hold in place and carefully tighten metering rod arm set screw (G). GM Corvette 1963-1982 Idle Speed and Mixture Repair Guide The download link can be found on your order confirmation email which you will receive as soon as you complete the order. If a loss of rpm is noted, or if the engine dies, and air leak exists. Gasket removed. Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). Adjust by bending the choke connector rod at lower angle (H). The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. Adjust by bending throttle connector rod at deepest angle as shown. In this video I show you how to replace the fast idle spring on the WCFB carburetor. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. Refer to the Adjustment Data Table for adjustment dimensions. 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. 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. Put some fluid in theaccelerator pumpwell and press down on the pump. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. Carter WCFB Metering Rods - YouTube The flat surface of the pump arm should be parallel to the straight edge. 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 This is an electronic rebuild manual, no physical copy will be provided. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. It needs about 4 lbs of pressure. Carter WCFB 4 Barrel Carburetor Float System. 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. When removing valves they should be marked so that they get put back the same way. Share. FREE to our customers that buy a rebuild kit. 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 1955 Pontiac - Loading or Carburetor Flooding Carter WCFB 4 Barrel Adjust Float. 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! Your friend will receive an email from you with a link to our site. Adjust idle screws D to produce a smooth idle of correct speed is obtained. DO NOT apply any pressure on the needle.