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. Refer to the Adjustment Data Table for adjustment dimensions. Can't find the answer you're looking for? Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). parts. Hold throttle valve wide open and close choke valve as far as possible without forcing. A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. We will contact you as soon as this product is available. 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. Rotate throttle stop screw E until engine idle at approx 500 RPM. 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. Check any vents to make sure they are open. All late model WCFB carburetors have three different length bowl cover screws. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. See figure 9F-2. One of the butterflies is open about 1/8 with the carburetor dis assembled. Probably not since only one butterfly is open. With carburetor installed and engine warmed up. With mineral spirits in the float bowl, Raise the pump. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. Sometimes scraping around the edges with an awl will remove the staking. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. 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. 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. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. 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. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. This eliminates any bog or hesitation when acceleration. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. (note) The metering rods will fit into the jets loosely. Two ports act as calibrated air bleeds. 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. You should feel some pressure and fluid should not be bypassing the check needle. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. 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). Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. Adjusting the WCFB float level and float drop. 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). They know their stuff and provide technical assistance and guides in both paper and video formats. Pulloffs : CUFWCFB2 $ 0 . 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 They need to be centered in the bowl.Fuel could be leaking around the needle & seat. 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 Can't find the answer you're looking for? The well should fill with fluid. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. 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 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. Gasket removed. Hold air horn upright with floats hanging. 5:04. Free shipping for many products! When I slow down to an idle, my engine runs rough. Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. Clogged idle tube, or passages in the idle circuit. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. You need to run wire down all small passages. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. The carburetor will flood. With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. Can you help me out? Be careful removing the intake check retainer. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . Coat threads of screw with sealing compound and install it. The metering rod adjustment should be done after the pump adjustment. There should be a retainer keeping the check ball in place. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. 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). In this video I show you how to replace the fast idle spring on the WCFB carburetor. This restricts the flow of fuel. Can't find the answer you're looking for. 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. The adjustment of the pump is important in order to get the required fuel. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. *New Airhorn Gasket7. Use a brass drift punch. 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. Coat threads of screw with sealing compound and install it. 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. New fuel pumps are especially suspect. Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. When that is the case, I bend the accel. Carter WCFB 4 Barrel Carburetor Float System. Put some fluid in theaccelerator pumpwell and press down on the pump. 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. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. Fast, secure e-book download. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. When done you should see very little daylight around the valve. Make sure the ball rattles. The most complete document I have found. 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. 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 (. 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. 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! You may even have to resort to finding a used WCFB carburetor. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. *New Float6. Adjust by bending float arms, making sure both pontoons on each float are the same height. Measure float height as illustrated above. Air Bled has the venturi tube pointing down into the bore. This allows air instead of fuel to be drawn off the pump jets. Loosen the clamp screw A Press. Make sure the pump relief check is clean. It's highlighted yellow and will look something like this. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. If the secondary throttle plate is staying open, then check the primary shaft dog and spring. Hold air horn upside down with floats in place and gasket removed. 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. Place the choke housing toward the left and remove upper right main body to throttle body screw. Product information . Carter WCFB 4 Barrel Adjust Float. 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. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. Ultra-Sonic Cleaning3. Adjust by bending arm (J) on choke trip lever. Your friend will receive an email from you with a link to our site. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. No metering rod gauges are necessary. The piston is brass and can be damaged very easily. b. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. The flat surface of the pump arm should be parallel to the straight edge. Any bubbles indicates a leak.Make sure the 2 floats are the same height. Did the old gasket get removed? If the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. 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. Hold a straight edge across top of dust cover housing, next to the pump arm. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. They work fine when I push hard down on the piston. Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. The flat on top of the pump arm should be parallel to the straight edge. Gasket removed as shown A. Both valves should be closed. They are staked in the hole. Carburetors equipped with an adjustable bowl vent require adjustment. This is percolation. There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. With throttle valves seated in bores, dust cover and gasket in place. The ends of the connector rod should point to the throttle arm side. Put a straight edge across the dust cover as illustrated. During high speed operation a vacuum exists at the pump jets. 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. 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. Adjust by bending throttle connector rod at deepest angle as shown. 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. cm448. 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. 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. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. They sometimes need trimming. Make sure the air horn contacts the inner wall of the bowl. Add a couple drops of oil to the leather. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. 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. Some have a coating to give it a better shelf life. Float drop not set, or fuel pump pressure too low. Correct by removing any burrs or nicks. Ethanol gas does not have much if any lubrication. FREE to our customers that buy a rebuild kit. Make sure these are clear if you have percolation problems. What Has Been Done to This Carburetor?1. The fuel is also conducted through a passage in the air horn to the secondary needle seat. 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 Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. When closing the throttle, the accelerator moves up in the pump well. Ultra-Sonic Cleaning3. Make sure manifold heat control valve is free. Disassembly2. 60 pages of great info. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. Ethanol leaves deposits behind that acts like corrosion. This check prevents excessive pressure in the discharge passage during acceleration. Carter WCFB Rebuild kits: Rebuild Kits. The file is in PDF format, you can download and save/print a copy. The WCFB carburetor which came on some of the earliest 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. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Any pressure put on the needle will damage it. 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 . 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. Please complete the fields below to send your friend a link to this product. 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. Each size must be used in its own location. The setups data is the same. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn Test the fuel pump to be sure it isnt putting out too much pressure. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. 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. Carter WCFB, 4 barrel carburetor manual. Carter WCFB, 4 barrel metering rod adjustment instructions. Adjust by bending lip of float, not float arm. Adjust by bending unloader lip on throttle shaft 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. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. To correct, remove carburetor and turn it upside down. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Good quality print. These diagrams include: Fig. Solid fuel has the 2 tubes pointing up. 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. Watch on. The discharge check is seated at this time to prevent air being drawn into the pump well. a. Aspringis inserted in the power piston hole, then the piston. Do not depress float lip against spring in needle, but let float rest of its own weight. Back off the idle screw so that the throttle plates close completely. Blowing out passages will not get them clean enough. Seat the discharge check by tapping lightly in the hole to form a good seal. These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. Note te larger box, and the number of additional tools from the 1935 set. This is an electronic rebuild manual, no physical copy will be provided. . Carter WCFB 4 Barrel Carburetor Float System. This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. The single step rods were used on some of the price leader carburetors (i.e. The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. 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. 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 purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. 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 WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. 1955 Chevy Hard starting after flooding. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. If a loss of rpm is noted, or if the engine dies, and air leak exists. 1st check to make sure the fast idle linkage isnt holding the valves open. 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. The Solid fuel is the later models BBDContents:00:00 intro00:34 air bled adjustments00:37 air bled float setting01:03 air bled fast idle type I01:25 air bled fast idle type II01:42 air bled fast idle type III01:58 air bled unloader02:24 air bled choke vacuum kick03:01 air bled automatic choke03:16 air bled pump04:08 air bled dashpot04:27 air bled idle speed \u0026 mixture04:58 air bled emission carburetors idle mixture06:00 air bled limiter cap06:36 solid fuel adjustments06:40 solid fuel float setting07:03 solid fuel metering rod07:27 solid fuel accelerator pump07:55 solid fuel bowl vent08:18 solid fuel fast idle cam08:43 solid fuel choke pull-off09:12 solid fuel automatic choke09:24 solid fuel egr dump valve09:46 solid fuel unloader10:08 solid fuel high altitude10:28 solid fuel idle speed \u0026 mixture12:11 solid fuel Limiter cap12:37 solid fuel fst idle12:51 solid fuel throttle positioner13:56 solid fuel vacuum throttle positioner14:31 solid fuel sol-vac15:04 solid fuel dashpot15:28 solid fuel transducer Be careful when removing the top of the carburetor that you don't force things and break the piston lever. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. 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. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. However, it is very similar and I found it very useful. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). Must be made after fast idle adjustment. 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). Someone has installed it improperly. 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 Be sure these ports are clear. Back out throttle stop screw until throttle valves seat in bores. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil.
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