Two ports act as calibrated air bleeds. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. Install the pump connector rod (D) in the outer hole, long stroke. This box did not have a part number. The discharge check is seated at this time to prevent air being drawn into the pump well. Piston force is too much for linkage. The metering rod adjustment should be done after the pump adjustment. Any bubbles indicates a leak.Make sure the 2 floats are the same height. Gasket between bowl and base is installed backwards (easy to do). Make sure these are clear if you have percolation problems. Carter WCFB 4 Barrel Carburetor Float System. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. Adjust by bending lip of float, not float arm. 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. The correct way is to use a fuel pump pressure gauge. This is an electronic rebuild manual, no physical copy will be provided. Back out throttle stop screw until throttle valves seat in bores. You should feel some pressure and fluid should not be bypassing the check needle. *New Float6. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. 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. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. Then close throttle. These diagrams include: Fig. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. Make sure the air cleaner gasket does not block the bowl vents. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. I. DISASSEMBLY. Aspringis inserted in the power piston hole, then the piston. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . Carter WCFB Build Sheets Ethanol gas does not have much if any lubrication. Fig. Free shipping for many products! Ethanol leaves deposits behind that acts like corrosion. If hard starting still exists change the choke setting to one point lean. Can't find the answer you're looking for? Other than that, great company to deal with. The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. 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). Also make sure one isnt rubbing on the side. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. During high speed operation a vacuum exists at the pump jets. 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! 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 Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Back out throttle screw so that the throttle valve close completly. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). Make sure the ball rattles. 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. Tyler's Forgotten Car Rescue 22,933 views. Recheck float adjustments. The file is in PDF format, you can download and save/print a copy. You are flooding (getting too much gas in the float bowl), caused by these types of problems. 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. 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 . Put a straight edge across the dust cover as illustrated. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). Some have a coating to give it a better shelf life. Measure from toe B to air horn. Gasket removed. 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 . 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. On the WCFB the check ball is usually at the bottom of the pump well. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. WCFB Carburetor Cutting Out on Left Hand Turn. Anti-Rust "Dichromate" Finish**4. Note te larger box, and the number of additional tools from the 1935 set. 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. To correct, remove carburetor and turn it upside down. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. When that is the case, I bend the accel. The flat surface of the pump arm should be parallel to the straight edge. 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. Could the float bowl actually be the problem? You cannot go wrong with Mikes carburetor in any way. 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. The single step rods were used on some of the price leader carburetors (i.e. b. Make sure the air horn contacts the inner wall of the bowl. Hold air horn upright with floats hanging. When done you should see very little daylight around the valve. Place the choke housing toward the left and remove upper right main body to throttle body screw. This eliminates any bog or hesitation when acceleration. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. The piston is brass and can be damaged very easily. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Clogged idle tube, or passages in the idle circuit. Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. a. If the secondary throttle plate is staying open, then check the primary shaft dog and spring. Fig. Carter WCFB Rebuild kits: Rebuild Kits. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. The ends of the connector rod should point to the throttle arm side. Do not depress float lip against spring in needle, but let float rest of its own weight. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. Install the pump connector rod (D) in the outer hole, long stroke. 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, 4 barrel metering rod adjustment instructions. Rotate throttle stop screw E until engine idle at approx 500 RPM. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. Can't find the answer you're looking for? I have repeated multiple times with same results. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Check throttle linkage to make sure that primary throttle valves come to full wide open position. 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. 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. 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. The most complete document I have found. If not then clean it and try again. 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. Please complete the fields below to send your friend a link to this product. Blow through the intake check passage to be sure the passage is open. Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). 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. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. When removing valves they should be marked so that they get put back the same way. Change the choke setting to index. This is an electronic rebuild manual, no physical copy will be provided. There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). Carter WCFB 4 Barrel Carburetor Float System. Technical Details. You need to run wire down all small passages. On 1956 models one point rich. Can't find the answer you're looking for? You may even have to resort to finding a used WCFB carburetor. Correct by removing any burrs or nicks. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. Each size must be used in its own location. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! Coat threads of screw with sealing compound and install it. The adjustment of the pump is important in order to get the required fuel. Hold air horn upside down with floats in place and gasket removed. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. To correct, remove carburetor and turn it upside down. New fuel pumps are especially suspect. Carter WCFB Fast Idle With carburetor installed and engine warmed up. . 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. Gasket removed as shown A. Take the top off and put the pump in the well all the way to the bottom. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. As for the pump not squirting.I suspect the pump well isnt filling up. Measure float height as illustrated above. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. Can't find the answer you're looking for? Put some fluid in theaccelerator pumpwell and press down on the pump. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. All These Part Numbers Interchange Into Our Part No. Pulloffs : CUFWCFB2 $ 0 . Test the floats in hot water and if you get any bubbles then they are leaking. 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. Disassembly2. 60 pages of great info. 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. 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. FREE to our customers that buy a rebuild kit. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Use a brass drift punch. Probably not since only one butterfly is open. Adjust by bending lip of float, not float arm. Measure from center top surface of pontoons to air horn. 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 The carburetor will flood. Enter Carb Number. What Has Been Done to This Carburetor?1. Run a blunt object around the inside of the leather cup to make sure any coating is broken. A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. They know their stuff and provide technical assistance and guides in both paper and video formats. It needs about 4 lbs of pressure. All late model WCFB carburetors have three different length bowl cover screws. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. 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 The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. 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 accelerator pump circuit resides on the primary side of. Make sure manifold heat control valve is free. 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? Both valves should be closed. Watch this. Loosen the clamp screw A Press. The adjustment of the pump is important in order to get the required fuel. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. The Carter AFB uses weights, and therefore never goes out of adjustment. *New Main Body Gasket8. Notice holes from which linkage rods are removed so they can Adjust idle screws D to produce a smooth idle of correct speed is obtained. Refer to the Adjustment Data Table for adjustment dimensions. 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). The vacuum piston is no longer produced and can only be found as a NOS piece, or used. They are not meant to fill the hole, only to restrict it. The mixture screw may be bent, or damaged. Watch on. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. Recheck unloader settings with carburetor on the engine. 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. 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. 3: Holley 4150 idle mixture and speed adjustment screws. Secondarys are somehow stuck open (which amounts to a vacuum leak). Someone has installed it improperly. Ideas?? Quick test to see if the accelerator pump is working. but if it runs well you don't really need to make any adjustments. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. 1st check to make sure the fast idle linkage isnt holding the valves open. 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 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 to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. 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. DO NOT apply any pressure on the needle. Back out the throttle lever set screw (idle screw) to allow throttle valves to seat in the bores of the carburetor. Product information . These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. Check the low speed jets to make sure they are clear (#44). The fuel is also conducted through a passage in the air horn to the secondary needle seat. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. However, it is very similar and I found it very useful. This can be done by looking at the impression on bowl cover gasket. 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. We will contact you as soon as this product is available. Carter WCFB, 4 barrel carburetor manual. This restricts the flow of fuel. Ultra-Sonic Cleaning3. With mineral spirits in the float bowl, Raise the pump. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. 57-65 WCFB 1 x 4 carb - Cover only no spring or spring plate CUD3741 $ 4.99 Gasket - Base WCFB 4GC G402 $ 4.95 Flange Gasket G1164 $ 4.95 WCFB Air Cleaner Gasket . Carburetors equipped with an adjustable bowl vent require adjustment. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. If the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. It should not be opened up. They work fine when I push hard down on the piston. The well should fill with fluid. Probably around 4- 4.5lbs. 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. Rotate throttle stop screw E until engine idle at approx 500 RPM. 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. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. 2: Carter AFB idle mixture and speed adjustment screws. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. The fuel is also conducted through a passage in the air horn to the secondary needle seat. 1955 Pontiac - Loading or Carburetor Flooding Why Doesn't Adjusting Idle Mixture Screws Make any Difference? Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). Be careful removing the intake check retainer. 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. Can you help me out? How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. The accelerator pump circuit resides on the primary side of this carburetor. Back off the idle screw so that the throttle plates close completely. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. Older kits 30-70s. With throttle valves seated in bores, dust cover and gasket in place.