Adjust by bending arm (J) on choke trip lever. 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. The piston is brass and can be damaged very easily. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. In this video I show you how to replace the fast idle spring on the WCFB carburetor. Aspringis inserted in the power piston hole, then the piston. You need to run wire down all small passages. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. Tyler's Forgotten Car Rescue 22,933 views. See figure 9F-2. It needs about 4 lbs of pressure. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). The metering rod adjustment should be done after the pump adjustment. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. 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). If a loss of rpm is noted, or if the engine dies, and air leak exists. No metering rod gauges are necessary. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. The file is in PDF format, you can download and save/print a copy. I. DISASSEMBLY. When replacing them hold them tight against the wall while tightening the screw. 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. Make sure these are clear if you have percolation problems. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Can't find the answer you're looking for? Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. 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 . As for the pump not squirting.I suspect the pump well isnt filling up. parts. 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. If the secondary throttle plate is staying open, then check the primary shaft dog and spring. 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. Your friend will receive an email from you with a link to our site. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. Press down on vacuum piston link C until metering rods bottom in the carburetor body. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. Good quality print. 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. Is there a pointed check weight in the main discharge hole. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. Quick test to see if the accelerator pump is working. The flat on top of the pump arm should be parallel to the straight edge. The adjustment of the pump is important in order to get the required fuel. This check prevents excessive pressure in the discharge passage during acceleration. Seat the discharge check by tapping lightly in the hole to form a good seal. Fig. (note) The metering rods will fit into the jets loosely. Fig. Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. Any bubbles indicates a leak.Make sure the 2 floats are the same height. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. On the WCFB the check ball is usually at the bottom of the pump well. During high speed operation a vacuum exists at the pump jets. Adjusting the WCFB float level and float drop. New fuel pumps are especially suspect. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. Carter WCFB Build Sheets Seat the intake check by tapping lightly in the hole to form a good seal. When done you should see very little daylight around the valve. Back out throttle screw so that the throttle valve close completly. One of the butterflies is open about 1/8 with the carburetor dis assembled. Run a blunt object around the inside of the leather cup to make sure any coating is broken. Clogged idle tube, or passages in the idle circuit. You can also check the adjustment by measuring (F) which should be 18/64. This is an electronic rebuild manual, no physical copy will be provided. b. Put some fluid in theaccelerator pumpwell and press down on the pump. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Add a couple drops of oil to the leather. You may even have to resort to finding a used WCFB carburetor. Watch on. Measure from toe B to air horn. Carter WCFB, 4 barrel carburetor manual. 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. 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. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. If not then clean it and try again. 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. This can be done by looking at the impression on bowl cover gasket. You cannot go wrong with Mikes carburetor in any way. To correct, remove carburetor and turn it upside down. Any pressure put on the needle will damage it. All These Part Numbers Interchange Into Our Part No. BBS) and were basically an on/off condition similar to the function of a power valve. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. Ethanol leaves deposits behind that acts like corrosion. 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. Someone has installed it improperly. Test the needle by holding it down gently with a brass drift punch. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. 1: Carter WCFB idle mixture and speed adustment screw location. Hold a straight edge across top of dust cover housing, next to the pump arm. With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. Adjust idle screws D to produce a smooth idle of correct speed is obtained. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. 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. Examine the viton tip for any marks.Fuel pump pressure could be too high. A WGD usually has a pump arm like that of a WCFB (IIRC). This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Loosen the clamp screw A Press. Adjust by bending float arms, making sure both pontoons on each float are the same height. Could the float bowl actually be the problem? Take the top off and put the pump in the well all the way to the bottom. The ends of the connector rod should point to the throttle arm side. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. Adjust by bending throttle connector rod at upper angle (B). Blowing out passages will not get them clean enough. Make sure the ball rattles. When I slow down to an idle, my engine runs rough. It's highlighted yellow and will look something like this. Hold throttle valve wide open and close choke valve as far as possible without forcing. 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). Be sure these ports are clear. Be careful removing the intake check retainer. All late model WCFB carburetors have three different length bowl cover screws. 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). There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. 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. 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! 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 most complete document I have found. Place the choke housing toward the left and remove upper right main body to throttle body screw. Did the old gasket get removed? This allows air instead of fuel to be drawn off the pump jets. 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. WCFB Carburetor Cutting Out on Left Hand Turn. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. 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 Carter WCFB Rebuild kits: Rebuild Kits. 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. 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 cfm of the Carter WCFB four-barrel carburetor is approximately 400. Everyone Has Started an Engine in the . Make sure the air horn contacts the inner wall of the bowl. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. 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. but if it runs well you don't really need to make any adjustments. Use a brass drift punch. 3: Holley 4150 idle mixture and speed adjustment screws. Adjust by bending unloader lip on throttle shaft lever. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). cm448. 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. It needs to go up and down easily.Is there aspringunder the power piston?Are the venturi cluster gaskets sitting flat and not curled over? The carburetor will flood. 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. *New Accelerator Pump5. *New Main Body Gasket8. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. Then close throttle. 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 (. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. Make sure the air cleaner gasket does not block the bowl vents. Anti-Rust "Dichromate" Finish**4. Put a straight edge across the dust cover as illustrated. If not, then find the check ball and make sure it is loose. Older kits 30-70s. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. Adjust by bending lip of float, not float arm. The accelerator pump circuit resides on the primary side of this carburetor. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. Other than that, great company to deal with. 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). 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 Carter WCFB 4 Barrel Carburetor Float System. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. However, it is very similar and I found it very useful. 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. Install the pump connector rod (D) in the outer hole, long stroke. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Metering rods for the WCFB have been out of production for several years now. With throttle valves seated in bores, dust cover and gasket in place. Recheck float adjustments. 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. 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. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. 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 Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Make sure there is a check needle below the main discharge. It should not be opened up. 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.

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