They work fine when I push hard down on the piston. When done you should see very little daylight around the valve. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. *New Accelerator Pump5. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. Watch this. Watch on. You are flooding (getting too much gas in the float bowl), caused by these types of problems. If hard starting still exists change the choke setting to one point lean. Blow through the intake check passage to be sure the passage is open. The fuel is also conducted through a passage in the air horn to the secondary needle seat. There should be a retainer keeping the check ball in place. If not then clean it and try again. These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. 5:04. With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. Can you help me out? 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. Put a straight edge across the dust cover as illustrated. Can't find the answer you're looking for? Examine the viton tip for any marks.Fuel pump pressure could be too high.
Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . Did the old gasket get removed? Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). Ideas?? Carter WCFB, 4 barrel metering rod adjustment instructions. Press down on vacuum piston link C until metering rods bottom in the carburetor body. 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. 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). Can't find the answer you're looking for? Solid fuel has the 2 tubes pointing up. Make sure the pontoons are centered and will not rub the bowl sides. Back out throttle lever set screw until throttle valves seat in bores of carburetor. Coat threads of screw with sealing compound and install it. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . You can also check the adjustment by measuring (F) which should be 18/64. We will contact you as soon as this product is available. Gasket removed as shown A. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. This allows air instead of fuel to be drawn off the pump jets. If not, then find the check ball and make sure it is loose.
Carter WCFB Metering Rods - carburetor-parts.com Check the low speed jets to make sure they are clear (#44). 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. Can't find the answer you're looking for. You cannot go wrong with Mikes carburetor in any way.
Carter WCFB 4 Barrel Carburetor Float System Share. All These Part Numbers Interchange Into Our Part No. Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. The fuel is also conducted through a passage in the air horn to the secondary needle seat. On 1956 models one point rich. Adjust by bending arm (J) on choke trip lever. Gasket between bowl and base is installed backwards (easy to do). Any pressure put on the needle will damage it.
How to Modify a Carter or Edelbrock Carburetor - Muscle Car DIY When replacing them hold them tight against the wall while tightening the screw. Other than that, great company to deal with. They know their stuff and provide technical assistance and guides in both paper and video formats.
Carter 2 Barrel BBD Adjustments - YouTube (note) The metering rods will fit into the jets loosely. 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 . Back out throttle screw so that the throttle valve close completly. The correct way is to use a fuel pump pressure gauge. This restricts the flow of fuel. Carburetors equipped with an adjustable bowl vent require adjustment. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. The accelerator pump circuit resides on the primary side of. Then close throttle.
It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. 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 . To correct, remove carburetor and turn it upside down. Recheck float adjustments. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. The metering rod adjustment should be done after the pump adjustment. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. 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. 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.
How Do You Look up Carter Carburetor ID Numbers Online? - Reference.com 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. Can't find the answer you're looking for? *New Main Body Gasket8.
1952 Carter WCFBsetting idle - Discussion Forums Some models have a pump relief check in the bottom of the fuel bowl. WCFB Carburetor Cutting Out on Left Hand Turn. 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 The ends of the connector rod should point to the throttle arm side.
19571958 Plymouth Fury Carter WCFB Carburetor *Remanufactured | eBay When removing valves they should be marked so that they get put back the same way. Aspringis inserted in the power piston hole, then the piston. Seat the intake check by tapping lightly in the hole to form a good seal. Could the float bowl actually be the problem? Ethanol gas does not have much if any lubrication.
1956-1957 Chevrolet Carter WCFB Carburetor 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? Probably not since only one butterfly is open. They are staked in the hole. 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. When closing the throttle, the accelerator moves up in the pump well. 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. Clogged idle tube, or passages in the idle circuit. If the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. 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). 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. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Can't find the answer you're looking for? . Do not depress float lip against spring in needle, but let float rest of its own weight. cm448. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. Ethanol leaves deposits behind that acts like corrosion. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. See figure 9F-2. 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. Hold air horn upright with floats hanging. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Be sure these ports are clear. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator.
THE CARBURETOR SHOP / Troubleshooting Metering rods for the WCFB have been out of production for several years now.
Home - Carburetor Manual Ebooks Place the choke housing toward the left and remove upper right main body to throttle body screw. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. Two ports act as calibrated air bleeds. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. On the WCFB the check ball is usually at the bottom of the pump well.
REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Blow air through the main discharge to make sure the passage is clear all the way to the pump well.
All late model WCFB carburetors have three different length bowl cover screws. 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 is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. Make sure these are clear if you have percolation problems. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . With carburetor installed and engine warmed up. Fast, secure e-book download. 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. 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. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine.
Free shipping for many products! 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). 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. Loosen the clamp screw A Press. Hold throttle valve wide open and close choke valve as far as possible without forcing. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Hold in place and carefully tighten metering rod arm set screw (G). Rotate throttle stop screw E until engine idle at approx 500 RPM. Good quality print. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. 60 pages of great info. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. 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
As for the pump not squirting.I suspect the pump well isnt filling up. Back out throttle stop screw until throttle valves seat in bores. It's highlighted yellow and will look something like this. Carter WCFB Rebuild kits: Rebuild Kits. Someone has installed it improperly. Carter WCFB 4 Barrel Carburetor Float System.
Carter WCFB 4 Barrel Carburetor Quick test to see if the accelerator pump is working. WCFB carburetors, althqugh basically all units are allke. Adjust by bending the choke connector rod at lower angle (H). Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism.
PDF Carter Carb Identification Chart - annualreport.psg.fr Change the choke setting to index. When that is the case, I bend the accel. The discharge check is seated at this time to prevent air being drawn into the pump well. Hold a straight edge across top of dust cover housing, next to the pump arm. 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 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. William C. Carter was born in Union City Tennessee in 1884.
WCFB 4 Barrel Carburetor Float Adjustment Carter WGD Adjustments - Mikes Carburetor Parts The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). Some have a coating to give it a better shelf life. 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. 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Refer to the Adjustment Data Table for adjustment dimensions.
PDF Parts List Carter Carburetor Model Wcfb Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore.
How To Replace the Carter WCFB 4 Barrel Fast Idle Spring? Adjust idle screws D to produce a smooth idle of correct speed is obtained. In this video I show you how to replace the fast idle spring on the WCFB carburetor. 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 . Both valves should be closed. You may even have to resort to finding a used WCFB carburetor. Carter WCFB, 4 barrel carburetor manual. Ultra-Sonic Cleaning3. Enter Carb Number. Run a blunt object around the inside of the leather cup to make sure any coating is broken. Put some fluid in theaccelerator pumpwell and press down on the pump. 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. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. Can't find the answer you're looking for? Older kits 30-70s. Any bubbles indicates a leak.Make sure the 2 floats are the same height. 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. The Carter AFB uses weights, and therefore never goes out of adjustment. Piston force is too much for linkage. Make sure there is a check needle below the main discharge. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. One of the butterflies is open about 1/8 with the carburetor dis assembled. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? Back off the idle screw so that the throttle plates close completely. Seat the discharge check by tapping lightly in the hole to form a good seal. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. Your friend will receive an email from you with a link to our site. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented.
Carter WCFB 4 Barrel Metering Rod - Mikes Carburetor Parts cm448 Carter WCFB Carburetor Manual - carbkitsource.com 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. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. This eliminates any bog or hesitation when acceleration. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. 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 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure.
Carter WCFB Carburetor Manual - Mike's Carburetor Parts 2: Carter AFB idle mixture and speed adjustment screws. 1: Carter WCFB idle mixture and speed adustment screw location. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. During high speed operation a vacuum exists at the pump jets. 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. This restricts the flow of fuel. 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. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. The single step rods were used on some of the price leader carburetors (i.e. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. Measure float height as illustrated above.
Carter Carburetor Identification - Carburetor kits, parts and manuals If the secondary throttle plate is staying open, then check the primary shaft dog and spring. Correct by removing any burrs or nicks. 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). The piston is brass and can be damaged very easily. BBS) and were basically an on/off condition similar to the function of a power valve. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. Hold air horn upside down with floats in place and gasket removed. Carter WCFB Fast Idle With carburetor installed and engine warmed up. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. 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. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. New fuel pumps are especially suspect.