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 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. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. Back out throttle stop screw until throttle valves seat in bores. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. *New Main Body Gasket8. Coat threads of screw with sealing compound and install it. You are flooding (getting too much gas in the float bowl), caused by these types of problems. 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. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Tyler's Forgotten Car Rescue 22,933 views. Refer to the Adjustment Data Table for adjustment dimensions. Carter WCFB Fast Idle With carburetor installed and engine warmed up. 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. They work fine when I push hard down on the piston. Loosen the clamp screw A Press. 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, 4 barrel metering rod adjustment instructions. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. . Test the needle by holding it down gently with a brass drift punch. Adjust idle screws D to produce a smooth idle of correct speed is obtained. Any pressure put on the needle will damage it. Make sure the pump relief check is clean. Correct by removing any burrs or nicks. Put a straight edge across the dust cover as illustrated. 2: Carter AFB idle mixture and speed adjustment screws. When I slow down to an idle, my engine runs rough. Adjust by bending the connector rod at the lower bend (E). 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. Back out the throttle lever set screw (idle screw) to allow throttle valves to seat in the bores of the carburetor. Carter WCFB 4 Barrel Adjust Float. One is in the secondary venturi and the other just above the throttle plate. During high speed operation a vacuum exists at the pump jets. It needs about 4 lbs of pressure. Ultra-Sonic Cleaning3. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. The metering rod adjustment should be done after the pump adjustment. The adjustment of the pump is important in order to get the required fuel. Recheck unloader settings with carburetor on the engine. Also make sure one isnt rubbing on the side. All These Part Numbers Interchange Into Our Part No. The flat surface of the pump arm should be parallel to the straight edge. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. 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. 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 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. New fuel pumps are especially suspect. 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. Hold a straight edge across top of dust cover housing, next to the pump arm. 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. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. Did the old gasket get removed? Ethanol leaves deposits behind that acts like corrosion. All late model WCFB carburetors have three different length bowl cover screws. This can be done by looking at the impression on bowl cover gasket. Secondarys are somehow stuck open (which amounts to a vacuum leak). The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. We will contact you as soon as this product is available. Metering rods for the WCFB have been out of production for several years now. Older kits 30-70s. Two ports act as calibrated air bleeds. However, it is very similar and I found it very useful. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. On the WCFB the check ball is usually at the bottom of the pump well. 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. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. Adjust idle screws D to produce a smooth idle of correct speed is obtained. When closing the throttle, the accelerator moves up in the pump well. This check prevents excessive pressure in the discharge passage during acceleration. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. 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. Check throttle linkage to make sure that primary throttle valves come to full wide open position. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? A WGD usually has a pump arm like that of a WCFB (IIRC). You should feel some pressure and fluid should not be bypassing the check needle. Any bubbles indicates a leak.Make sure the 2 floats are the same height. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . Fast, secure e-book download. When that is the case, I bend the accel. With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. One of the butterflies is open about 1/8 with the carburetor dis assembled. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. If not, then find the check ball and make sure it is loose. 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). Back out throttle lever set screw until throttle valves seat in bores of carburetor. 5:04. 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 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. Check any vents to make sure they are open. Adjust by bending unloader lip on throttle shaft lever. 1955 Chevy Hard starting after flooding. Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). BBS) and were basically an on/off condition similar to the function of a power valve. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. 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. Gasket removed. Everyone Has Started an Engine in the . To correct, remove carburetor and turn it upside down. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Carter WCFB Rebuild kits: Rebuild Kits. Disassembly2. 1st check to make sure the fast idle linkage isnt holding the valves open. DO NOT apply any pressure on the needle. cm448: Ebook carburetor service manual - 341 pages, 272 MBytes, pdf format. 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. Carter WCFB 4 Barrel Carburetor Float System. What Has Been Done to This Carburetor?1. No metering rod gauges are necessary. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. 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. Can't find the answer you're looking for? If hard starting still exists change the choke setting to one point lean. The carburetor will flood. They are staked in the hole. Place the choke housing toward the left and remove upper right main body to throttle body screw. Rotate throttle stop screw E until engine idle at approx 500 RPM. Please complete the fields below to send your friend a link to this product. Test the fuel pump to be sure it isnt putting out too much pressure. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. The file is in PDF format, you can download and save/print a copy. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. I. DISASSEMBLY. Carter WCFB 4 Barrel Carburetor Float System. Blow through the intake check passage to be sure the passage is open. *New Accelerator Pump5. Disassembly2. Most of the single step rods were steel. The accelerator pump circuit resides on the primary side of. 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. Product information . 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. This eliminates any bog or hesitation when acceleration. WCFB carburetors, althqugh basically all units are allke. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. Your friend will receive an email from you with a link to our site. Be sure these ports are clear. Some have a coating to give it a better shelf life. 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. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! 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. Check the low speed jets to make sure they are clear (#44). You can also check the adjustment by measuring (F) which should be 18/64. Can't find the answer you're looking for? Enter Carb Number. The flat on top of the pump arm should be parallel to the straight edge. Back off the idle screw so that the throttle plates close completely. Fig. Can't find the answer you're looking for? Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. In this video I show you how to replace the fast idle spring on the WCFB carburetor. The piston is brass and can be damaged very easily. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. 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. (note) The metering rods will fit into the jets loosely. 1955 Pontiac - Loading or Carburetor Flooding I rebuilt a Carter WCFB carburetor with the lower auto choke setup. 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 done you should see very little daylight around the valve. Be careful removing the intake check retainer. Gasket between bowl and base is installed backwards (easy to do). Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Hold air horn upright with floats hanging. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. 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. There should be a retainer keeping the check ball in place. Watch this. They sometimes need trimming. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. This box did not have a part number. With throttle valves seated in bores, dust cover and gasket in place. Carter WCFB 4 Barrel Carburetor Float System. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. 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 Install the pump connector rod (D) in the outer hole, long stroke. Then close throttle. 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 Change the choke setting to index. Low fuel pump pressure always check you motors manual for the correct pressure. Adjust by bending throttle connector rod at deepest angle as shown. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. Use a brass drift punch. Can't find the answer you're looking for? Each size must be used in its own location. 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. 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. Adjusting the WCFB float level and float drop. Recheck float adjustments. 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. 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 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 Anti-Rust "Dichromate" Finish**4. 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. I have repeated multiple times with same results. 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. *New Float6. Make sure the air cleaner gasket does not block the bowl vents. 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). Aspringis inserted in the power piston hole, then the piston. 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. It's highlighted yellow and will look something like this. Can you help me out? Blowing out passages will not get them clean enough. Adjust by bending float arms, making sure both pontoons on each float are the same height. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. Can't find the answer you're looking for? You cannot go wrong with Mikes carburetor in any way. 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. The mixture screw may be bent, or damaged. These diagrams include: Fig. Both valves should be closed. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. If a loss of rpm is noted, or if the engine dies, and air leak exists. 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. Carburetors equipped with an adjustable bowl vent require adjustment. It should not be opened up. *New Airhorn Gasket7. Is there a pointed check weight in the main discharge hole. 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 The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. This is an electronic rebuild manual, no physical copy will be provided. This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. The most complete document I have found. They know their stuff and provide technical assistance and guides in both paper and video formats. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Run a blunt object around the inside of the leather cup to make sure any coating is broken. 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. The fuel is also conducted through a passage in the air horn to the secondary needle seat. Carter WCFB, 4 barrel carburetor manual. Seat the intake check by tapping lightly in the hole to form a good seal. The WCFB carburetor which came on some of the earliest but if it runs well you don't really need to make any adjustments. Measure from toe B to air horn. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. 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? Rotate throttle stop screw E until engine idle at approx 500 RPM. 1: Carter WCFB idle mixture and speed adustment screw location. Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. The correct way is to use a fuel pump pressure gauge. Add a couple drops of oil to the leather. Measure from center top surface of pontoons to air horn. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. Note te larger box, and the number of additional tools from the 1935 set. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. 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). When removing valves they should be marked so that they get put back the same way. 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. William C. Carter was born in Union City Tennessee in 1884. 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. 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. They are not meant to fill the hole, only to restrict it. 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. This is percolation. 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 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 . With mineral spirits in the float bowl, Raise the pump. Make sure manifold heat control valve is free. The setups data is the same. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. 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. As for the pump not squirting.I suspect the pump well isnt filling up. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. Watch on. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. a. Ethanol gas does not have much if any lubrication. Piston force is too much for linkage. Install the pump connector rod (D) in the outer hole, long stroke. Hold throttle valve wide open and close choke valve as far as possible without forcing. Hold air horn upside down with floats in place and gasket removed. cm448. The adjustment of the pump is important in order to get the required fuel. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). Coat threads of screw with sealing compound and install it. Ultra-Sonic Cleaning3. Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. Make sure the air horn contacts the inner wall of the bowl. 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. The single step rods were used on some of the price leader carburetors (i.e. Good quality print. Adjust by bending lip of float, not float arm. Test the floats in hot water and if you get any bubbles then they are leaking. 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. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. This allows air instead of fuel to be drawn off the pump jets. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. Examine the viton tip for any marks.Fuel pump pressure could be too high. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Make sure these are clear if you have percolation problems. 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 . This restricts the flow of fuel. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. You need to run wire down all small passages. This is an electronic rebuild manual, no physical copy will be provided. Measure float height as illustrated above. 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.