To correct, remove carburetor and turn it upside down. 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 . Solid fuel has the 2 tubes pointing up. What Has Been Done to This Carburetor?1. If not, then find the check ball and make sure it is loose. Carter Carburetor Manual 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. Must be made after fast idle adjustment. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. Any bubbles indicates a leak.Make sure the 2 floats are the same height. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. 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. Gasket between bowl and base is installed backwards (easy to do). Add a couple drops of oil to the leather. There should be a retainer keeping the check ball in place. 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. 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. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. 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. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. On the WCFB the check ball is usually at the bottom of the pump well. 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. 19591961 Chevrolet Carter WCFB Carburetor The single step rods were used on some of the price leader carburetors (i.e. Blow through the intake check passage to be sure the passage is open. Ethanol leaves deposits behind that acts like corrosion. 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 bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. Gasket removed. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. Back off the idle screw so that the throttle plates close completely. Carter WCFB 4 Barrel Adjust Float - YouTube The download link can be found on your order confirmation email which you will receive as soon as you complete the order. 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 Tyler's Forgotten Car Rescue 22,933 views. Carter WCFB 4 Barrel Carburetor Float System All These Part Numbers Interchange Into Our Part No. 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. 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 throttle linkage to make sure that primary throttle valves come to full wide open position. Carter WCFB, 4 barrel metering rod adjustment instructions. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. How Do You Look up Carter Carburetor ID Numbers Online? - Reference.com 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 Press down on vacuum piston link C until metering rods bottom in the carburetor body. 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. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. 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. The WCFB carburetor which came on some of the earliest Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. Please complete the fields below to send your friend a link to this product. It needs about 4 lbs of pressure. With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. 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 WCFB Metering Rods - carburetor-parts.com Servicing The Rochester Quadrajet Carburetor - MotorTrend *New Accelerator Pump5. The correct way is to use a fuel pump pressure gauge. Sometimes scraping around the edges with an awl will remove the staking. Notice holes from which linkage rods are removed so they can Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. 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. parts. Most of the single step rods were steel. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. 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). *New Float6. Carter WCFB 4 Barrel Carburetor Float System. 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. 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. Be careful removing the intake check retainer. The piston is brass and can be damaged very easily. Measure from center top surface of pontoons to air horn. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. 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. 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. The setups data is the same. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. When done you should see very little daylight around the valve. Carter WCFB 4 Barrel Accelerator Pump Circuit - YouTube Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). Someone has installed it improperly. Low fuel pump pressure always check you motors manual for the correct pressure. This is percolation. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. Carter WCFB Carburetor Troubleshooting Adjusting the WCFB float level and float drop. I. DISASSEMBLY. Watch this. Make sure the air cleaner gasket does not block the bowl vents. Share. Recheck unloader settings with carburetor on the engine. These diagrams include: Fig. *New Airhorn Gasket7. Make sure these are clear if you have percolation problems. DO NOT apply any pressure on the needle. This check prevents excessive pressure in the discharge passage during acceleration. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. Coat threads of screw with sealing compound and install it. Adjust by bending throttle connector rod at deepest angle as shown. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! The file is in PDF format, you can download and save/print a copy. WCFB Carburetor Cutting Out on Left Hand Turn. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. Each size must be used in its own location. Aspringis inserted in the power piston hole, then the piston. Can't find the answer you're looking for? Older kits 30-70s. As for the pump not squirting.I suspect the pump well isnt filling up. Ideas?? Good quality print. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Adjust by bending unloader lip on throttle shaft lever. Check the low speed jets to make sure they are clear (#44). 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. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. Adjust idle screws D to produce a smooth idle of correct speed is obtained. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. The flat surface of the pump arm should be parallel to the straight edge. Carter Carburetor Identification - Carburetor kits, parts and manuals Carter WCFB 4 Barrel Carburetor Float System. 1952 Carter WCFBsetting idle - Discussion Forums Recheck float adjustments. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. WCFB carburetors, althqugh basically all units are allke. Adjust by bending arm (J) on choke trip lever. Can you help me out? Everyone Has Started an Engine in the . You should feel some pressure and fluid should not be bypassing the check needle. How To Replace the Carter WCFB 4 Barrel Fast Idle Spring? Clogged idle tube, or passages in the idle circuit. 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. 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. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. Any pressure put on the needle will damage it. Could the float bowl actually be the problem? FREE to our customers that buy a rebuild kit. Air Bled has the venturi tube pointing down into the bore. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. Can't find the answer you're looking for? Carburetors equipped with an adjustable bowl vent require adjustment. Enter Carb Number. THE CARBURETOR SHOP / Carter carburetor special tools Back out throttle lever set screw until throttle valves seat in bores of carburetor. Blowing out passages will not get them clean enough. Carter WCFB 4 Barrel Carburetor Float System. The adjustment of the pump is important in order to get the required fuel. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. Adjust by bending the connector rod at the lower bend (E). Carter WCFB 4 Barrel Carburetor Float System. However, it is very similar and I found it very useful. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. New fuel pumps are especially suspect. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. 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. Adjust idle screws D to produce a smooth idle of correct speed is obtained. Carter WCFB Archives - Mikes Carburetor Parts In this video I show you how to replace the fast idle spring on the WCFB carburetor.