Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. They sometimes need trimming. Notice holes from which linkage rods are removed so they can The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. With carburetor installed and engine warmed up. Can't find the answer you're looking for? *New Main Body Gasket8. 2: Carter AFB idle mixture and speed adjustment screws. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. Adjust by bending throttle connector rod at upper angle (B). Make sure these are clear if you have percolation problems. We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. Enter Carb Number. 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 . When I slow down to an idle, my engine runs rough. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. Recheck unloader settings with carburetor on the engine. 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 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. 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. 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. Secondarys are somehow stuck open (which amounts to a vacuum leak). Adjust by bending float arms, making sure both pontoons on each float are the same height. However, it is very similar and I found it very useful. Probably around 4- 4.5lbs. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. *New Accelerator Pump5. 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. Make sure the pontoons are centered and will not rub the bowl sides. 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. 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. Take the top off and put the pump in the well all the way to the bottom. The piston is brass and can be damaged very easily. 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. Install the pump connector rod (D) in the outer hole, long stroke. Recheck float adjustments. They are not meant to fill the hole, only to restrict it. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. The carburetor will flood. 5:04. Watch this. William C. Carter was born in Union City Tennessee in 1884. This is an electronic rebuild manual, no physical copy will be provided. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. 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). The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. 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 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 replacing them hold them tight against the wall while tightening the screw. 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. Use a brass drift punch. Tyler's Forgotten Car Rescue 22,933 views. 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. Disassembly2. Disassembly2. When done you should see very little daylight around the valve. The well should fill with fluid. One is in the secondary venturi and the other just above the throttle plate. Measure from center top surface of pontoons to air horn. BBS) and were basically an on/off condition similar to the function of a power valve. Carburetors equipped with an adjustable bowl vent require adjustment. cm448. Hold air horn upside down with floats in place and gasket removed. but if it runs well you don't really need to make any adjustments. 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 circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Carter WCFB Build Sheets Examine the viton tip for any marks.Fuel pump pressure could be too high. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. 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 most complete document I have found. If not, then find the check ball and make sure it is loose. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. If a loss of rpm is noted, or if the engine dies, and air leak exists. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. Solid fuel has the 2 tubes pointing up. Adjust by bending the connector rod at the lower bend (E). *New Float6. 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! Older kits 30-70s. Back out throttle lever set screw until throttle valves seat in bores of carburetor. 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 idle screws D to produce a smooth idle of correct speed is obtained. Rotate throttle stop screw E until engine idle at approx 500 RPM. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. The adjustment of the pump is important in order to get the required fuel. Note te larger box, and the number of additional tools from the 1935 set. You cannot go wrong with Mikes carburetor in any way. Hold a straight edge across top of dust cover housing, next to the pump arm. Loosen the clamp screw A Press. Fast, secure e-book download. Then close throttle. Each size must be used in its own location. Technical Details. They are staked in the hole. Some have a coating to give it a better shelf life. Refer to the Adjustment Data Table for adjustment dimensions. 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 In this video I show you how to replace the fast idle spring on the WCFB carburetor. 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. Blow through the intake check passage to be sure the passage is open. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. What Has Been Done to This Carburetor?1. Blowing out passages will not get them clean enough. We will contact you as soon as this product is available. 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. The flat surface of the pump arm should be parallel to the straight edge. 1: Carter WCFB idle mixture and speed adustment screw location. Your friend will receive an email from you with a link to our site. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. The ends of the connector rod should point to the throttle arm side. 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. Watch on. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. Fig. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . . The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. With throttle valves seated in bores, dust cover and gasket in place. Make sure manifold heat control valve is free. 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. Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. The accelerator pump circuit resides on the primary side of. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. I. DISASSEMBLY. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. Measure from toe B to air horn. Adjusting the WCFB float level and float drop. Do not depress float lip against spring in needle, but let float rest of its own weight. Seat the discharge check by tapping lightly in the hole to form a good seal. Low fuel pump pressure always check you motors manual for the correct pressure. Ethanol leaves deposits behind that acts like corrosion. The flat on top of the pump arm should be parallel to the straight edge. Good quality print. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. a. 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 . Float drop not set, or fuel pump pressure too low. With mineral spirits in the float bowl, Raise the pump. Make sure the ball rattles. Most of the single step rods were steel. You should feel some pressure and fluid should not be bypassing the check needle. Can't find the answer you're looking for. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. Carter WCFB, 4 barrel metering rod adjustment instructions. Share. The cfm of the Carter WCFB four-barrel carburetor is approximately 400. Any pressure put on the needle will damage it. 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. To correct, remove carburetor and turn it upside down. It should not be opened up. Free shipping for many products! No metering rod gauges are necessary. Be sure these ports are clear. All These Part Numbers Interchange Into Our Part No. 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. Carter WCFB, 4 barrel carburetor manual. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! Also make sure one isnt rubbing on the side. Adjust by bending lip of float, not float arm. The fuel is also conducted through a passage in the air horn to the secondary needle seat. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. 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. *New Airhorn Gasket7. Metering rods for the WCFB have been out of production for several years now. Place the choke housing toward the left and remove upper right main body to throttle body screw. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. The discharge check is seated at this time to prevent air being drawn into the pump well. When that is the case, I bend the accel. Probably not since only one butterfly is open. Back out the throttle lever set screw (idle screw) to allow throttle valves to seat in the bores of the carburetor. On the WCFB the check ball is usually at the bottom of the pump well. As for the pump not squirting.I suspect the pump well isnt filling up. 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. 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. 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. Carter WCFB 4 Barrel Carburetor Float System. 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. Ultra-Sonic Cleaning3. 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 the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. Could the float bowl actually be the problem? The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Put some fluid in theaccelerator pumpwell and press down on the pump. 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). Back out throttle screw so that the throttle valve close completly. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. 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 used metering rods with a single step, 2-step, 3-step, and 4-step. See figure 9F-2. The Carter AFB uses weights, and therefore never goes out of adjustment. 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 FREE to our customers that buy a rebuild kit. Back off the idle screw so that the throttle plates close completely. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. The metering rod adjustment should be done after the pump adjustment. This is percolation. Carter WCFB Rebuild kits: Rebuild Kits. This allows air instead of fuel to be drawn off the pump jets. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Aspringis inserted in the power piston hole, then the piston. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. The WCFB carburetor which came on some of the earliest 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. These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. The ends of the connector rod should point to the throttle arm side. Coat threads of screw with sealing compound and install it. What more could you ask for? When removing valves they should be marked so that they get put back the same way. If the secondary throttle plate is staying open, then check the primary shaft dog and spring. Product information . 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. b. Piston force is too much for linkage. Quick test to see if the accelerator pump is working. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. Someone has installed it improperly. 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. 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. Do not depress float lip against spring in needle, but let float rest of its own weight. 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 pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). Carter WCFB 4 Barrel Adjust Float. 1st check to make sure the fast idle linkage isnt holding the valves open. 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). Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Is there a pointed check weight in the main discharge hole. 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. Everyone Has Started an Engine in the . When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. If not then clean it and try again. 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. 1955 Pontiac - Loading or Carburetor Flooding You can also check the adjustment by measuring (F) which should be 18/64. Check the low speed jets to make sure they are clear (#44). Two ports act as calibrated air bleeds. Please complete the fields below to send your friend a link to this product. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. It needs about 4 lbs of pressure. Run a blunt object around the inside of the leather cup to make sure any coating is broken. I have repeated multiple times with same results. This check prevents excessive pressure in the discharge passage during acceleration. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. There should be a retainer keeping the check ball in place. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. Carter WCFB 4 Barrel Carburetor Float System. Any bubbles indicates a leak.Make sure the 2 floats are the same height. The single step rods were used on some of the price leader carburetors (i.e. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. (note) The metering rods will fit into the jets loosely. The download link will expire in 30 days. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. 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. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. This restricts the flow of fuel. When closing the throttle, the accelerator moves up in the pump well. The mixture screw may be bent, or damaged. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. Gasket removed. Carter WCFB 4 Barrel Accelerator Pump Circuit 3,951 views Jul 13, 2018 33 Dislike Share Mikes Carburetor 20K subscribers https://www.carburetor-parts.com is providing this video about how the. Fig. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. 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. Coat threads of screw with sealing compound and install it. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. You are flooding (getting too much gas in the float bowl), caused by these types of problems. Hold throttle valve wide open and close choke valve as far as possible without forcing. 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 Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. You may even have to resort to finding a used WCFB carburetor.
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