The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. 1955 Pontiac - Loading or Carburetor Flooding 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. All late model WCFB carburetors have three different length bowl cover screws. Everyone Has Started an Engine in the . It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. Disassembly2. 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. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. Refer to the Adjustment Data Table for adjustment dimensions. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. The fuel is also conducted through a passage in the air horn to the secondary needle seat. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. Carter WCFB 4 Barrel Carburetor Float System. Older kits 30-70s. Disassembly2. I. DISASSEMBLY. Share. Carter WCFB, 4 barrel carburetor manual. The ends of the connector rod should point to the throttle arm side. 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. Carter WCFB 4 Barrel Carburetor Float System. Piston force is too much for linkage. William C. Carter was born in Union City Tennessee in 1884. 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. This is percolation. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. If not, then find the check ball and make sure it is loose. Carter WCFB 4 Barrel Adjust Float. Blow through the intake check passage to be sure the passage is open. There should be a retainer keeping the check ball in place. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. With mineral spirits in the float bowl, Raise the pump. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? Adjust by bending float arms, making sure both pontoons on each float are the same height. Back out throttle lever set screw until throttle valves seat in bores of carburetor. The carburetor will flood. 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. 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 They are staked in the hole. Adjust by bending unloader lip on throttle shaft lever. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. A WGD usually has a pump arm like that of a WCFB (IIRC). 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. Fig. cm448. The WCFB carburetor which came on some of the earliest Seat the discharge check by tapping lightly in the hole to form a good seal. Is there a pointed check weight in the main discharge hole. Check the low speed jets to make sure they are clear (#44). 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. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . Put a straight edge across the dust cover as illustrated. The adjustment of the pump is important in order to get the required fuel. 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. 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. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. Most of the single step rods were steel. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. You need to run wire down all small passages. Ideas?? The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. This is an electronic rebuild manual, no physical copy will be provided. (note) The metering rods will fit into the jets loosely. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. Product information . 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. 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 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. Back out throttle screw so that the throttle valve close completly. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Loosen the clamp screw A Press. Sometimes scraping around the edges with an awl will remove the staking. Adjust by bending lip of float, not float arm. The most complete document I have found. Outside top of early Carter tool box with correct decal. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. Take the top off and put the pump in the well all the way to the bottom. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. Probably around 4- 4.5lbs. During high speed operation a vacuum exists at the pump jets. Watch this. Some have a coating to give it a better shelf life. Carter WCFB Fast Idle With carburetor installed and engine warmed up. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. Technical Details. Some models have a pump relief check in the bottom of the fuel bowl. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. . 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 Enter Carb Number. Blowing out passages will not get them clean enough. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. On 1956 models one point rich. Ethanol leaves deposits behind that acts like corrosion. Run a blunt object around the inside of the leather cup to make sure any coating is broken. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. 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. 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. BBS) and were basically an on/off condition similar to the function of a power valve. No metering rod gauges are necessary. Gasket removed. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. With throttle valves seated in bores, dust cover and gasket in place. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. The correct way is to use a fuel pump pressure gauge. Hold throttle valve wide open and close choke valve as far as possible without forcing. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. The single step rods were used on some of the price leader carburetors (i.e. 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 . The discharge check is seated at this time to prevent air being drawn into the pump well. Hold in place and carefully tighten metering rod arm set screw (G). Make sure manifold heat control valve is free. 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 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. 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.
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