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 Adjust idle screws D to produce a smooth idle of correct speed is obtained. Make sure the pontoons are centered and will not rub the bowl sides. Measure from center top surface of pontoons to air horn. 60 pages of great info. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. 2: Carter AFB idle mixture and speed adjustment screws. Rotate throttle stop screw E until engine idle at approx 500 RPM. William C. Carter was born in Union City Tennessee in 1884. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. They sometimes need trimming. The adjustment of the pump is important in order to get the required fuel. 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 Some have a coating to give it a better shelf life. Place the choke housing toward the left and remove upper right main body to throttle body screw. Probably not since only one butterfly is open. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. The ends of the connector rod should point to the throttle arm side. Probably around 4- 4.5lbs. Press down on vacuum piston link C until metering rods bottom in the carburetor body. The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. Fig. Any pressure put on the needle will damage it. Outside top of early Carter tool box with correct decal. *New Airhorn Gasket7. The fuel is also conducted through a passage in the air horn to the secondary needle seat. 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 . but if it runs well you don't really need to make any adjustments. Also make sure one isnt rubbing on the side. When I slow down to an idle, my engine runs rough. Refer to the Adjustment Data Table for adjustment dimensions. cm448. Solid fuel has the 2 tubes pointing up. Carter WCFB 4 Barrel Carburetor Float System. Carter WCFB Rebuild kits: Rebuild Kits. Blowing out passages will not get them clean enough. Disassembly2. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! They know their stuff and provide technical assistance and guides in both paper and video formats. 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. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. They work fine when I push hard down on the piston. Check the low speed jets to make sure they are clear (#44). 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. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Recheck float adjustments. 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. Carter WCFB Fast Idle With carburetor installed and engine warmed up. 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. Watch this. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. BBS) and were basically an on/off condition similar to the function of a power valve. 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. Coat threads of screw with sealing compound and install it. Be careful removing the intake check retainer. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. The flat surface of the pump arm should be parallel to the straight edge. Ideas?? 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. Install the pump connector rod (D) in the outer hole, long stroke. *New Accelerator Pump5. 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. If not, then find the check ball and make sure it is loose. Ultra-Sonic Cleaning3. Carter WCFB Build Sheets Good quality print. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. The well should fill with fluid. New fuel pumps are especially suspect. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. Hold a straight edge across top of dust cover housing, next to the pump arm. The flat on top of the pump arm should be parallel to the straight edge. Examine the viton tip for any marks.Fuel pump pressure could be too high. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . Metering rods for the WCFB have been out of production for several years now. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. 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. 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. Measure float height as illustrated above. One of the butterflies is open about 1/8 with the carburetor dis assembled. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. 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. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. 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. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. Make sure the ball rattles. Two ports act as calibrated air bleeds. This restricts the flow of fuel. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. 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. 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. 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. However, it is very similar and I found it very useful. Fast, secure e-book download. You cannot go wrong with Mikes carburetor in any way. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. It should not be opened up. WCFB Carburetor Cutting Out on Left Hand Turn. The accelerator pump circuit resides on the primary side of this carburetor. Quick test to see if the accelerator pump is working. Test the needle by holding it down gently with a brass drift punch. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. 1: Carter WCFB idle mixture and speed adustment screw location. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. This eliminates any bog or hesitation when acceleration. 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. I have repeated multiple times with same results. The adjustment of the pump is important in order to get the required fuel. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. When that is the case, I bend the accel. When removing valves they should be marked so that they get put back the same way. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). 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 This box did not have a part number. 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. FREE to our customers that buy a rebuild kit. 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 (. Make sure the pump relief check is clean. Check any vents to make sure they are open. Measure from toe B to air horn. The piston is brass and can be damaged very easily. DO NOT apply any pressure on the needle. 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! Blow air through the main discharge to make sure the passage is clear all the way to the pump well. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. Make sure the air horn contacts the inner wall of the bowl. See figure 9F-2. If not then clean it and try again. Can't find the answer you're looking for? From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Share. Loosen the clamp screw A Press. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. When closing the throttle, the accelerator moves up in the pump well. 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. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. Carter WCFB 4 Barrel Adjust Float. This allows air instead of fuel to be drawn off the pump jets. 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. Float drop not set, or fuel pump pressure too low. Carter WCFB 4 Barrel Carburetor Float System. Most of the single step rods were steel. . 5:04. Secondarys are somehow stuck open (which amounts to a vacuum leak). Hold throttle valve wide open and close choke valve as far as possible without forcing. Run a blunt object around the inside of the leather cup to make sure any coating is broken. Change the choke setting to index. This restricts the flow of fuel. When done you should see very little daylight around the valve. Recheck unloader settings with carburetor on the engine. Note te larger box, and the number of additional tools from the 1935 set. Can't find the answer you're looking for? 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. Ultra-Sonic Cleaning3. Use a brass drift punch. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. The fuel is also conducted through a passage in the air horn to the secondary needle seat. You need to run wire down all small passages. The metering rod adjustment should be done after the pump adjustment. On the WCFB the check ball is usually at the bottom of the pump well. A WGD usually has a pump arm like that of a WCFB (IIRC). The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. 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. Gasket removed. Can you help me out? Pulloffs : CUFWCFB2 $ 0 . 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. 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. Is there a pointed check weight in the main discharge hole. All These Part Numbers Interchange Into Our Part No. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. Clogged idle tube, or passages in the idle circuit. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. They are not meant to fill the hole, only to restrict it. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. Watch on. Install the pump connector rod (D) in the outer hole, long stroke. No metering rod gauges are necessary. With throttle valves seated in bores, dust cover and gasket in place. If a loss of rpm is noted, or if the engine dies, and air leak exists. On 1956 models one point rich. Free shipping for many products! Disassembly2. Then close throttle. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. They are staked in the hole. A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. Adjust by bending the connector rod at the lower bend (E). Put a straight edge across the dust cover as illustrated. Seat the discharge check by tapping lightly in the hole to form a good seal. You are flooding (getting too much gas in the float bowl), caused by these types of problems. Air Bled has the venturi tube pointing down into the bore. 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. Gasket between bowl and base is installed backwards (easy to do). Adjusting the WCFB float level and float drop. Can't find the answer you're looking for? Test the floats in hot water and if you get any bubbles then they are leaking. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. Older kits 30-70s. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. Place the choke housing toward the left and remove upper right main body to throttle body screw. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. When replacing them hold them tight against the wall while tightening the screw. 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 held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. If the secondary throttle plate is staying open, then check the primary shaft dog and spring. The mixture screw may be bent, or damaged. 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. Adjust by bending the choke connector rod at lower angle (H). Carburetors equipped with an adjustable bowl vent require adjustment. Do not depress float lip against spring in needle, but let float rest of its own weight. The download link will expire in 30 days. Enter Carb Number. Adjust by bending float arms, making sure both pontoons on each float are the same height. The most complete document I have found. Make sure manifold heat control valve is free. Seat the intake check by tapping lightly in the hole to form a good seal.