Secondarys are somehow stuck open (which amounts to a vacuum leak). Your friend will receive an email from you with a link to our site. Test the needle by holding it down gently with a brass drift punch. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. PDF Parts List Carter Carburetor Model Wcfb Make sure the air cleaner gasket does not block the bowl vents. If the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. Carter Metering Rod Technology - THE CARBURETOR SHOP There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. They are staked in the hole. You should feel some pressure and fluid should not be bypassing the check needle. Watch this. If a loss of rpm is noted, or if the engine dies, and air leak exists. Carter WCFB Metering Rods - carburetor-parts.com There should be a retainer keeping the check ball in place. Measure float height as illustrated above. 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 Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. The discharge check is seated at this time to prevent air being drawn into the pump well. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . 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. Low fuel pump pressure always check you motors manual for the correct pressure. The most complete document I have found. Blowing out passages will not get them clean enough. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! 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. Measure from center top surface of pontoons to air horn. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. Both valves should be closed. If hard starting still exists change the choke setting to one point lean. The adjustment of the pump is important in order to get the required fuel. Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. Coat threads of screw with sealing compound and install it. Carter 2 Barrel BBD Adjustments - YouTube At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Make sure the ball rattles. 1955 Chevy Hard starting after flooding. 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. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. Hold air horn upside down with floats in place and gasket removed. The flat on top of the pump arm should be parallel to the straight edge. The file is in PDF format, you can download and save/print a copy. This allows air instead of fuel to be drawn off the pump jets. On 1956 models one point rich. cm448. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. 1st check to make sure the fast idle linkage isnt holding the valves open. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. I have repeated multiple times with same results. Adjust idle screws D to produce a smooth idle of correct speed is obtained. Each size must be used in its own location. Ethanol leaves deposits behind that acts like corrosion. 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. 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 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. Watch on. Carter WCFB 4 Barrel Carburetor Rebuild - YouTube Enter Carb Number. Also make sure one isnt rubbing on the side. 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. b. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. Press down on vacuum piston link C until metering rods bottom in the carburetor body. Adjust by bending float arms, making sure both pontoons on each float are the same height. Tyler's Forgotten Car Rescue 22,933 views. Ideas?? I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. The setups data is the same. 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. Do not depress float lip against spring in needle, but let float rest of its own weight. Adjusting the WCFB float level and float drop. 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? Carter WCFB 4 Barrel Adjust Float - YouTube Be sure these ports are clear. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Is there a pointed check weight in the main discharge hole. Can't find the answer you're looking for. Check any vents to make sure they are open. 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. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. Note te larger box, and the number of additional tools from the 1935 set. 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. Carburetors equipped with an adjustable bowl vent require adjustment. How To Replace the Carter WCFB 4 Barrel Fast Idle Spring? Be careful removing the intake check retainer. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. You can also check the adjustment by measuring (F) which should be 18/64. Someone has installed it improperly. 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. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? This restricts the flow of fuel. Then close throttle. A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. 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. Float drop not set, or fuel pump pressure too low. Carter WCFB Specifications - Mikes Carburetor Parts 1952 Carter WCFBsetting idle - Discussion Forums 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. Adjust by bending unloader lip on throttle shaft lever. One is in the secondary venturi and the other just above the throttle plate. No metering rod gauges are necessary. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. Correct by removing any burrs or nicks. Carter Carburetor Manual Adjust idle screws D to produce a smooth idle of correct speed is obtained. Anti-Rust "Dichromate" Finish**4. 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. GM Corvette 1963-1982 Idle Speed and Mixture Repair Guide Metering rods for the WCFB have been out of production for several years now. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. Older kits 30-70s. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. *New Main Body Gasket8. What more could you ask for? 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). Product information . 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! The well should fill with fluid. The ends of the connector rod should point to the throttle arm side. Add a couple drops of oil to the leather. 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. building a wcfb 2x4 setup | Hot Rod Forum Carter WCFB 4 Barrel Carburetor Float System. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. A WGD usually has a pump arm like that of a WCFB (IIRC). The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. Carter WCFB Archives - Mikes Carburetor Parts 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn Recheck float adjustments. Test the floats in hot water and if you get any bubbles then they are leaking. You may even have to resort to finding a used WCFB carburetor. They work fine when I push hard down on the piston. Can you help me out? 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. It needs about 4 lbs of pressure. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. 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. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. Carter WCFB Carburetor Troubleshooting Adjust by bending the choke connector rod at lower angle (H). Refer to the Adjustment Data Table for adjustment dimensions. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. See figure 9F-2. Make sure there is a check needle below the main discharge. With mineral spirits in the float bowl, Raise the pump. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. 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. 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. When replacing them hold them tight against the wall while tightening the screw. The adjustment of the pump is important in order to get the required fuel. Gasket removed as shown A. Disassembly2. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. Make sure these are clear if you have percolation problems. 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 On the WCFB the check ball is usually at the bottom of the pump well. WCFB 4 Barrel Carburetor Float Adjustment Carter WGD Adjustments - Mikes Carburetor Parts As for the pump not squirting.I suspect the pump well isnt filling up. These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. The fuel is also conducted through a passage in the air horn to the secondary needle seat. The single step rods were used on some of the price leader carburetors (i.e. Adjust by bending arm (J) on choke trip lever. This is an electronic rebuild manual, no physical copy will be provided. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. The WCFB carburetor which came on some of the earliest 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. This box did not have a part number. 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 accelerator pump is used to provide an extra squirt of fuel when you step on the gas. 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 . Piston force is too much for linkage. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. THE CARBURETOR SHOP / WCFB and 4-GC floats All late model WCFB carburetors have three different length bowl cover screws. New fuel pumps are especially suspect. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. This restricts the flow of fuel. Back out the throttle lever set screw (idle screw) to allow throttle valves to seat in the bores of the carburetor. Good quality print. Outside top of early Carter tool box with correct decal. Check throttle linkage to make sure that primary throttle valves come to full wide open position. This is percolation. It's highlighted yellow and will look something like this. You are flooding (getting too much gas in the float bowl), caused by these types of problems. 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. Rotate throttle stop screw E until engine idle at approx 500 RPM. WCFB | Carter Carburetors, Parts & Rebuild Kits Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . This check prevents excessive pressure in the discharge passage during acceleration. 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 air horn contacts the inner wall of the bowl. Fig. 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 Carter WCFB Carburetor Manual - Mike's Carburetor Parts I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. 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. 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 a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Seat the intake check by tapping lightly in the hole to form a good seal. Carter WCFB Metering Rods - YouTube This eliminates any bog or hesitation when acceleration. Hold a straight edge across top of dust cover housing, next to the pump arm. We will contact you as soon as this product is available. Everyone Has Started an Engine in the . Back out throttle screw so that the throttle valve close completly. Some have a coating to give it a better shelf life. Check the low speed jets to make sure they are clear (#44). The Carter AFB uses weights, and therefore never goes out of adjustment. 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 flat surface of the pump arm should be parallel to the straight edge. 1955 Pontiac - Loading or Carburetor Flooding Can't find the answer you're looking for? Gasket removed. DO NOT apply any pressure on the needle. Place the choke housing toward the left and remove upper right main body to throttle body screw. Adjust by bending throttle connector rod at deepest angle as shown. Ultra-Sonic Cleaning3. Solid fuel has the 2 tubes pointing up. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. Some models have a pump relief check in the bottom of the fuel bowl. With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. Make sure manifold heat control valve is free. When closing the throttle, the accelerator moves up in the pump well. Carter WCFB Fast Idle With carburetor installed and engine warmed up. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Back off the idle screw so that the throttle plates close completely. Rochester and Carter replacement parts are interchangeable. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. 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. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. 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 Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). cm448 Carter WCFB Carburetor Manual - carbkitsource.com 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. FREE to our customers that buy a rebuild kit. 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 (. REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Quick test to see if the accelerator pump is working. Coat threads of screw with sealing compound and install it. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. Adjust by bending the connector rod at the lower bend (E). Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. 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? Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. Gasket between bowl and base is installed backwards (easy to do). Any pressure put on the needle will damage it. Recheck unloader settings with carburetor on the engine. Place the choke housing toward the left and remove upper right main body to throttle body screw. The accelerator pump circuit resides on the primary side of this carburetor. 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. *New Accelerator Pump5. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. 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 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.
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