He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. Ultra-Sonic Cleaning3. It's highlighted yellow and will look something like this. The cfm of the Carter WCFB four-barrel carburetor is approximately 400. 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. Carburetors equipped with an adjustable bowl vent require adjustment. 1st check to make sure the fast idle linkage isnt holding the valves open. These diagrams include: Fig. We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. Check any vents to make sure they are open. Carter WCFB, 4 barrel metering rod adjustment instructions. This restricts the flow of fuel. The flat surface of the pump arm should be parallel to the straight edge. Technical Details. This is an electronic rebuild manual, no physical copy will be provided. Your friend will receive an email from you with a link to our site. When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. 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 . Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. 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. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. The accelerator pump circuit resides on the primary side of. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. The fuel is also conducted through a passage in the air horn to the secondary needle seat. To correct, remove carburetor and turn it upside down. 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. 5:04. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. The most complete document I have found. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. With carburetor installed and engine warmed up. 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. Fig. A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. The Carter AFB uses weights, and therefore never goes out of adjustment. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. Make sure there is a check needle below the main discharge. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. 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 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. Back out throttle lever set screw until throttle valves seat in bores of carburetor. Sometimes scraping around the edges with an awl will remove the staking. Adjust by bending throttle connector rod at upper angle (B). Notice holes from which linkage rods are removed so they can Can't find the answer you're looking for. parts. Make sure the air cleaner gasket does not block the bowl vents. The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. New fuel pumps are especially suspect. The single step rods were used on some of the price leader carburetors (i.e. I have repeated multiple times with same results. All These Part Numbers Interchange Into Our Part No. See figure 9F-2. 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 Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . Be careful removing the intake check retainer. Piston force is too much for linkage. FREE to our customers that buy a rebuild kit. . The piston is brass and can be damaged very easily. Gasket removed. You may even have to resort to finding a used WCFB carburetor. Recheck unloader settings with carburetor on the engine. Hold a straight edge across top of dust cover housing, next to the pump arm. Make sure manifold heat control valve is free. When I slow down to an idle, my engine runs rough. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. This is percolation. Add a couple drops of oil to the leather. BBS) and were basically an on/off condition similar to the function of a power valve. Rotate throttle stop screw E until engine idle at approx 500 RPM. This eliminates any bog or hesitation when acceleration. You need to run wire down all small passages. Press down on vacuum piston link C until metering rods bottom in the carburetor body. Recheck float adjustments. Probably around 4- 4.5lbs. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. 1955 Chevy Hard starting after flooding. 3: Holley 4150 idle mixture and speed adjustment screws. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). Most of the single step rods were steel. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB 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. Seat the intake check by tapping lightly in the hole to form a good seal. Adjust by bending the connector rod at the lower bend (E). Adjust by bending lip of float, not float arm. Then close throttle. Can you help me out? As for the pump not squirting.I suspect the pump well isnt filling up. Product information . Use a brass drift punch. The well should fill with fluid. 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. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. One of the butterflies is open about 1/8 with the carburetor dis assembled. The fuel is also conducted through a passage in the air horn to the secondary needle seat. Can't find the answer you're looking for? Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. When that is the case, I bend the accel. If the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. When removing valves they should be marked so that they get put back the same way. 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. During high speed operation a vacuum exists at the pump jets. 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. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . 1: Carter WCFB idle mixture and speed adustment screw location. With mineral spirits in the float bowl, Raise the pump. Rochester and Carter replacement parts are interchangeable. This check prevents excessive pressure in the discharge passage during acceleration. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. 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. 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). A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. Examine the viton tip for any marks.Fuel pump pressure could be too high. Disassembly2. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. 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. Must be made after fast idle adjustment. William C. Carter was born in Union City Tennessee in 1884. Measure from toe B to air horn. Adjusting the WCFB float level and float drop. Any pressure put on the needle will damage it. The correct way is to use a fuel pump pressure gauge. Good quality print. Float drop not set, or fuel pump pressure too low. 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 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 have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. Adjust by bending lip of float, not float arm. Do not depress float lip against spring in needle, but let float rest of its own weight. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. They are not meant to fill the hole, only to restrict it. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! Ethanol leaves deposits behind that acts like corrosion. Back out throttle stop screw until throttle valves seat in bores. 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. If not then clean it and try again. Someone has installed it improperly. Note te larger box, and the number of additional tools from the 1935 set. Loosen the clamp screw A Press. Other than that, great company to deal with. 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. Aspringis inserted in the power piston hole, then the piston. Disassembly2. Run a blunt object around the inside of the leather cup to make sure any coating is broken. Ethanol gas does not have much if any lubrication. If adjustment is required, remove dust cover and bend arm that operates the vent mechanism. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. You should feel some pressure and fluid should not be bypassing the check needle. 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 Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. If a loss of rpm is noted, or if the engine dies, and air leak exists. Adjust by bending the choke connector rod at lower angle (H). This box did not have a part number. Quick test to see if the accelerator pump is working. Watch this. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Any bubbles indicates a leak.Make sure the 2 floats are the same height. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Measure float height as illustrated above. Take the top off and put the pump in the well all the way to the bottom. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? Make sure the ball rattles. DO NOT apply any pressure on the needle. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. With throttle valves seated in bores, dust cover and gasket in place. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Seat the discharge check by tapping lightly in the hole to form a good seal. Carter WCFB 4 Barrel Adjust Float. The file is in PDF format, you can download and save/print a copy. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. Hold in place and carefully tighten metering rod arm set screw (G). Hold air horn upside down with floats in place and gasket removed. Make sure these are clear if you have percolation problems. You can also check the adjustment by measuring (F) which should be 18/64. Correct by removing any burrs or nicks. On the WCFB the check ball is usually at the bottom of the pump well. Air Bled has the venturi tube pointing down into the bore. Clogged idle tube, or passages in the idle circuit. Older kits 30-70s. Measure from center top surface of pontoons to air horn. Both valves should be closed. Do not depress float lip against spring in needle, but let float rest of its own weight. 2: Carter AFB idle mixture and speed adjustment screws. The mixture screw may be bent, or damaged. 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. 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. The WCFB carburetor which came on some of the earliest Can't find the answer you're looking for? 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 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. Each size must be used in its own location. 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. What more could you ask for? Check the low speed jets to make sure they are clear (#44). I. DISASSEMBLY. 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. It should not be opened up. 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 . a. 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. It needs about 4 lbs of pressure. *New Airhorn Gasket7. cm448. Adjust idle screws D to produce a smooth idle of correct speed is obtained. Test the needle by holding it down gently with a brass drift punch. 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. 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. 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. Blowing out passages will not get them clean enough. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. 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 (. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn Secondarys are somehow stuck open (which amounts to a vacuum leak). 60 pages of great info. 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). Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). Test the floats in hot water and if you get any bubbles then they are leaking. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. Is there a pointed check weight in the main discharge hole. *New Accelerator Pump5. Can't find the answer you're looking for? Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. They are staked in the hole. Gasket between bowl and base is installed backwards (easy to do). If hard starting still exists change the choke setting to one point lean. The ends of the connector rod should point to the throttle arm side. Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. Place the choke housing toward the left and remove upper right main body to throttle body screw. Some have a coating to give it a better shelf life. Carter WCFB 4 Barrel Carburetor Float System. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. Probably not since only one butterfly is open. Coat threads of screw with sealing compound and install it. 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 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. Hold air horn upright with floats hanging. Make sure the pump relief check is clean. Two ports act as calibrated air bleeds. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Fig. 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. Tyler's Forgotten Car Rescue 22,933 views. 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? Adjust by bending arm (J) on choke trip lever. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Share. 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 item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. This restricts the flow of fuel. To correct, remove carburetor and turn it upside down. 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! If not, then find the check ball and make sure it is loose. Low fuel pump pressure always check you motors manual for the correct pressure. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. Back out throttle screw so that the throttle valve close completly. *New Main Body Gasket8. There should be a retainer keeping the check ball in place. WCFB Carburetor Cutting Out on Left Hand Turn. Also make sure one isnt rubbing on the side. The download link will expire in 30 days. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. The metering rod adjustment should be done after the pump adjustment. Adjust by bending throttle connector rod at deepest angle as shown. Make sure the pontoons are centered and will not rub the bowl sides. WCFB carburetors, althqugh basically all units are allke. The setups data is the same. Ideas?? When done you should see very little daylight around the valve. Carter WCFB 4 Barrel Carburetor Float System. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. A WGD usually has a pump arm like that of a WCFB (IIRC). We will contact you as soon as this product is available. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. Free shipping for many products! The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Put some fluid in theaccelerator pumpwell and press down on the pump. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. Solid fuel has the 2 tubes pointing up. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Carter WCFB 4 Barrel Carburetor Float System. No metering rod gauges are necessary. 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. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. Can't find the answer you're looking for? 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. They sometimes need trimming. Blow through the intake check passage to be sure the passage is open. Adjust by bending float arms, making sure both pontoons on each float are the same height. Make sure the air horn contacts the inner wall of the bowl. 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. The accelerator pump circuit resides on the primary side of this carburetor. Check throttle linkage to make sure that primary throttle valves come to full wide open position. The flat on top of the pump arm should be parallel to the straight edge. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. Enter Carb Number. 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 Carburetor Float System. What Has Been Done to This Carburetor?1. Ultra-Sonic Cleaning3. Back off the idle screw so that the throttle plates close completely. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Hold throttle valve wide open and close choke valve as far as possible without forcing. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. 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 1955 Pontiac - Loading or Carburetor Flooding Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. Refer to the Adjustment Data Table for adjustment dimensions. This can be done by looking at the impression on bowl cover gasket. *New Float6. In this video I show you how to replace the fast idle spring on the WCFB carburetor. They know their stuff and provide technical assistance and guides in both paper and video formats. Gasket removed as shown A. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented.