carter wcfb carburetor adjustmentcarter wcfb carburetor adjustment

If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Note te larger box, and the number of additional tools from the 1935 set. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Use a brass drift punch. 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. Aspringis inserted in the power piston hole, then the piston. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). Make sure the pontoons are centered and will not rub the bowl sides. Watch this. We will contact you as soon as this product is available. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. 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. Piston force is too much for linkage. but if it runs well you don't really need to make any adjustments. Probably around 4- 4.5lbs. However, it is very similar and I found it very useful. With throttle valves seated in bores, dust cover and gasket in place. The most complete document I have found. Adjust by bending the choke connector rod at lower angle (H). 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). Check any vents to make sure they are open. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Ultra-Sonic Cleaning3. The flat on top of the pump arm should be parallel to the straight edge. If a loss of rpm is noted, or if the engine dies, and air leak exists. FREE to our customers that buy a rebuild kit. 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. 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. 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 Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. Be careful removing the intake check retainer. 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. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. Share. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). Make sure the pump relief check is clean. 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. Measure from center top surface of pontoons to air horn. The well should fill with fluid. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. Is there a pointed check weight in the main discharge hole. Your friend will receive an email from you with a link to our site. Place the choke housing toward the left and remove upper right main body to throttle body screw. Can't find the answer you're looking for? Metering rods for the WCFB have been out of production for several years now. They are staked in the hole. 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. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. Back off the idle screw so that the throttle plates close completely. 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. Put a straight edge across the dust cover as illustrated. Hold in place and carefully tighten metering rod arm set screw (G). A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. On 1956 models one point rich. 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 Can't find the answer you're looking for? 1955 Pontiac - Loading or Carburetor Flooding Install the pump connector rod (D) in the outer hole, long stroke. 1: Carter WCFB idle mixture and speed adustment screw location. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . 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. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. 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. Probably not since only one butterfly is open. 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. When replacing them hold them tight against the wall while tightening the screw. Make sure there is a check needle below the main discharge. Measure float height as illustrated above. The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. 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. Enter Carb Number. a. Put some fluid in theaccelerator pumpwell and press down on the pump. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. This is an electronic rebuild manual, no physical copy will be provided. You need to run wire down all small passages. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. Recheck float adjustments. Place the choke housing toward the left and remove upper right main body to throttle body screw. You cannot go wrong with Mikes carburetor in any way. The correct way is to use a fuel pump pressure gauge. The fuel is also conducted through a passage in the air horn to the secondary needle seat. Notice holes from which linkage rods are removed so they can 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. 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. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. The WCFB carburetor which came on some of the earliest These diagrams include: Fig. 2: Carter AFB idle mixture and speed adjustment screws. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. Install the pump connector rod (D) in the outer hole, long stroke. Carter WCFB Build Sheets Carburetors equipped with an adjustable bowl vent require adjustment. The fuel is also conducted through a passage in the air horn to the secondary needle seat. 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! Recheck unloader settings with carburetor on the engine. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. Refer to the Adjustment Data Table for adjustment dimensions. Test the floats in hot water and if you get any bubbles then they are leaking. Someone has installed it improperly. The mixture screw may be bent, or damaged. Ethanol leaves deposits behind that acts like corrosion. 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. Blowing out passages will not get them clean enough. Most of the single step rods were steel. Disassembly2. The file is in PDF format, you can download and save/print a copy. Back out the throttle lever set screw (idle screw) to allow throttle valves to seat in the bores of the carburetor. Make sure the air cleaner gasket does not block the bowl vents. The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. 5:04. With carburetor installed and engine warmed up. With mineral spirits in the float bowl, Raise the pump. You are flooding (getting too much gas in the float bowl), caused by these types of problems. 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 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. It's highlighted yellow and will look something like this. The download link will expire in 30 days. 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. It should not be opened up. Adjust by bending unloader lip on throttle shaft lever. Examine the viton tip for any marks.Fuel pump pressure could be too high. 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. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. Rotate throttle stop screw E until engine idle at approx 500 RPM. Back out throttle lever set screw until throttle valves seat in bores of carburetor. Please complete the fields below to send your friend a link to this product. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. 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. Both valves should be closed. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. When I slow down to an idle, my engine runs rough. If not then clean it and try again. WCFB Carburetor Cutting Out on Left Hand Turn. This eliminates any bog or hesitation when acceleration. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets.

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