These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. 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. Two ports act as calibrated air bleeds. Then close throttle. I. DISASSEMBLY. Check the low speed jets to make sure they are clear (#44). but if it runs well you don't really need to make any adjustments. The ends of the connector rod should point to the throttle arm side. Secondarys are somehow stuck open (which amounts to a vacuum leak). From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. 1957 Lincoln Accelerator Pump Carter Wcfb Fluorelastomer Cup Ethanol Test the fuel pump to be sure it isnt putting out too much pressure. 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. Air Bled has the venturi tube pointing down into the bore. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. 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. 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. Servicing The Rochester Quadrajet Carburetor - MotorTrend Test the needle by holding it down gently with a brass drift punch. Measure from toe B to air horn. 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? Rochester and Carter replacement parts are interchangeable. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. 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. The ends of the connector rod should point to the throttle arm side. I have repeated multiple times with same results. Adjust by bending throttle connector rod at upper angle (B). 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 . How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. The download link will expire in 30 days. One is in the secondary venturi and the other just above the throttle plate. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn Back out throttle stop screw until throttle valves seat in bores. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. Carter WCFB 4 Barrel Carburetor Float System. 1952 Carter WCFBsetting idle - Discussion Forums The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Coat threads of screw with sealing compound and install 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. Rotate throttle stop screw E until engine idle at approx 500 RPM. Make sure the air horn contacts the inner wall of the bowl. This restricts the flow of fuel. 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 metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. Carter WCFB 4 Barrel Carburetor Float System. Some models have a pump relief check in the bottom of the fuel bowl. Also make sure one isnt rubbing on the side. Adjusting the WCFB float level and float drop. 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). 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 WCFB 4 Barrel Adjust Float - YouTube When closing the throttle, the accelerator moves up in the pump well. 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 carburetor will flood. Anti-Rust "Dichromate" Finish**4. 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. WCFB Carburetor Cutting Out on Left Hand Turn. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. Carter 2 Barrel BBD Adjustments - YouTube b. 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. When done you should see very little daylight around the valve. Low fuel pump pressure always check you motors manual for the correct pressure. 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. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. 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 careful when removing the top of the carburetor that you don't force things and break the piston lever. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. 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. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! The adjustment of the pump is important in order to get the required fuel. The fuel is also conducted through a passage in the air horn to the secondary needle seat. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. We will contact you as soon as this product is available. The WCFB carburetor which came on some of the earliest With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. Carter WCFB Fast Idle With carburetor installed and engine warmed up. Test the floats in hot water and if you get any bubbles then they are leaking. Measure float height as illustrated above. cm448 Carter WCFB Carburetor Manual - carbkitsource.com Carter WCFB Carburetor Troubleshooting As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. Adjust by bending the choke connector rod at lower angle (H). pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). New fuel pumps are especially suspect. In this video I show you how to replace the fast idle spring on the WCFB carburetor. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Please complete the fields below to send your friend a link to this product. a. 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 suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. The Carter AFB uses weights, and therefore never goes out of adjustment. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. 5:04. Metering rods for the WCFB have been out of production for several years now. These diagrams include: Fig. 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. How Do You Look up Carter Carburetor ID Numbers Online? - Reference.com Refer to the Adjustment Data Table for adjustment dimensions. Carter WCFB 4 Barrel Adjust Float. 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. Piston force is too much for linkage. Any bubbles indicates a leak.Make sure the 2 floats are the same height. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . The piston is brass and can be damaged very easily. 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. Carburetors equipped with an adjustable bowl vent require adjustment. Aspringis inserted in the power piston hole, then the piston. This allows air instead of fuel to be drawn off the pump jets. Add a couple drops of oil to the leather. Rotate throttle stop screw E until engine idle at approx 500 RPM. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. Can't find the answer you're looking for? Carter WGD Adjustments - Mikes Carburetor Parts The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. Carter WCFB, 4 barrel carburetor manual. They are not meant to fill the hole, only to restrict it. Carter WCFB Build Sheets 19571958 Plymouth Fury Carter WCFB Carburetor *Remanufactured | eBay Home - Carburetor Manual Ebooks 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. Adjust by bending the connector rod at the lower bend (E). How to Modify a Carter or Edelbrock Carburetor - Muscle Car DIY The mixture screw may be bent, or damaged. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Quick test to see if the accelerator pump is working. PDF Parts List Carter Carburetor Model Wcfb Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. The flat on top of the pump arm should be parallel to the straight edge. On the WCFB the check ball is usually at the bottom of the pump well. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. Hold air horn upside down with floats in place and gasket removed. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. 2: Carter AFB idle mixture and speed adjustment screws. Correct by removing any burrs or nicks. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Other than that, great company to deal with. The flat surface of the pump arm should be parallel to the straight edge. 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. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. THE CARBURETOR SHOP / WCFB and 4-GC floats 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. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. This is an electronic rebuild manual, no physical copy will be provided. 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. 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. When I slow down to an idle, my engine runs rough. Take the top off and put the pump in the well all the way to the bottom. This is an electronic rebuild manual, no physical copy will be provided. Blow through the intake check passage to be sure the passage is open. You may even have to resort to finding a used WCFB carburetor. With carburetor installed and engine warmed up. Do not depress float lip against spring in needle, but let float rest of its own weight. Make sure there is a check needle below the main discharge. They are staked in the hole. Carter WCFB 4 Barrel Accelerator Pump Circuit - YouTube GM Corvette 1963-1982 Idle Speed and Mixture Repair Guide The fuel is also conducted through a passage in the air horn to the secondary needle seat. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . Ethanol leaves deposits behind that acts like corrosion. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. 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. Adjust by bending throttle connector rod at deepest angle as shown. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. Run a blunt object around the inside of the leather cup to make sure any coating is broken. The adjustment of the pump is important in order to get the required fuel. When removing valves they should be marked so that they get put back the same way. Hold throttle valve wide open and close choke valve as far as possible without forcing. This can be done by looking at the impression on bowl cover gasket. (note) The metering rods will fit into the jets loosely. Hold in place and carefully tighten metering rod arm set screw (G). building a wcfb 2x4 setup | Hot Rod Forum Coat threads of screw with sealing compound and install it. 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 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 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.
Hero Quest Monster Stats,
3rd Amtrac Battalion 1st Marine Division,
Articles C