Carter WCFB Specifications - Mikes Carburetor Parts Blow air through the main discharge to make sure the passage is clear all the way to the pump well. 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 Carburetor Manual Must be made after fast idle adjustment. This eliminates any bog or hesitation when acceleration. Blow through the intake check passage to be sure the passage is open. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. As for the pump not squirting.I suspect the pump well isnt filling up. Carter WCFB Build Sheets Can't find the answer you're looking for? Adjust idle screws D to produce a smooth idle of correct speed is obtained. Both valves should be closed. 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The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. 1957 Lincoln Accelerator Pump Carter Wcfb Fluorelastomer Cup Ethanol 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 Rotate throttle stop screw E until engine idle at approx 500 RPM. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. Do not depress float lip against spring in needle, but let float rest of its own weight. 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. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. All late model WCFB carburetors have three different length bowl cover screws. The WCFB carburetor which came on some of the earliest The setups data is the same. 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. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. Adjust by bending the connector rod at the lower bend (E). Aspringis inserted in the power piston hole, then the piston. William C. Carter was born in Union City Tennessee in 1884. What Has Been Done to This Carburetor?1. 19571958 Plymouth Fury Carter WCFB Carburetor *Remanufactured | eBay Also make sure one isnt rubbing on the side. Carter WCFB Metering Rods - carburetor-parts.com PDF Parts List Carter Carburetor Model Wcfb GM Corvette 1963-1982 Idle Speed and Mixture Repair Guide They sometimes need trimming. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! A WGD usually has a pump arm like that of a WCFB (IIRC). Carter WCFB 4 Barrel Carburetor Float System. Can't find the answer you're looking for? The discharge check is seated at this time to prevent air being drawn into the pump well. You need to run wire down all small passages. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . WCFB Carburetor Cutting Out on Left Hand Turn. Fig. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). THE CARBURETOR SHOP / Troubleshooting Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. Most of the single step rods were steel. Carter WCFB Carburetor Manual - Mike's Carburetor Parts During high speed operation a vacuum exists at the pump jets. The carburetor will flood. If not, then find the check ball and make sure it is loose. This check prevents excessive pressure in the discharge passage during acceleration. 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! WCFB 4 Barrel Carburetor Float Adjustment Any pressure put on the needle will damage it. 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 (. These diagrams include: Fig. The flat surface of the pump arm should be parallel to the straight edge. Metering rods for the WCFB have been out of production for several years now. 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. Everyone Has Started an Engine in the . 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. 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. All These Part Numbers Interchange Into Our Part No. Measure from toe B to air horn. 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. This restricts the flow of fuel. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. Make sure the ball rattles. Low fuel pump pressure always check you motors manual for the correct pressure. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. Quick test to see if the accelerator pump is working. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. but if it runs well you don't really need to make any adjustments. 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. Install the pump connector rod (D) in the outer hole, long stroke. 1955 Chevy Hard starting after flooding. PDF Carter Carb Identification Chart - annualreport.psg.fr *New Main Body Gasket8. This can be done by looking at the impression on bowl cover gasket. Can't find the answer you're looking for? They know their stuff and provide technical assistance and guides in both paper and video formats. 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 Is there a pointed check weight in the main discharge hole. To correct, remove carburetor and turn it upside down. Watch this. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. We will contact you as soon as this product is available. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. When removing valves they should be marked so that they get put back the same way. Make sure the air horn contacts the inner wall of the bowl. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. 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. Carter WCFB 4 Barrel Adjust Float. Pulloffs : CUFWCFB2 $ 0 . Disassembly2. Solid fuel has the 2 tubes pointing up. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. To correct, remove carburetor and turn it upside down. 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. Back out throttle lever set screw until throttle valves seat in bores of carburetor. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. If not then clean it and try again. Ultra-Sonic Cleaning3. However, it is very similar and I found it very useful. Check any vents to make sure they are open. With throttle valves seated in bores, dust cover and gasket in place. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Make sure the pontoons are centered and will not rub the bowl sides. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. Ideas?? Seat the discharge check by tapping lightly in the hole to form a good seal. The adjustment of the pump is important in order to get the required fuel. Carter WCFB Rebuild kits: Rebuild Kits. We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. Carter 2 Barrel BBD Adjustments - YouTube The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. Place the choke housing toward the left and remove upper right main body to throttle body screw. 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. Technical Details. Hold throttle valve wide open and close choke valve as far as possible without forcing. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. The fuel is also conducted through a passage in the air horn to the secondary needle seat. Carter WCFB Carburetor Troubleshooting Use a brass drift punch. Carter WCFB Fast Idle With carburetor installed and engine warmed up. Coat threads of screw with sealing compound and install it. The accelerator pump circuit resides on the primary side of this carburetor. Test the fuel pump to be sure it isnt putting out too much pressure. How to Modify a Carter or Edelbrock Carburetor - Muscle Car DIY The mixture screw may be bent, or damaged. Carter Carburetor Identification - Carburetor kits, parts and manuals This allows air instead of fuel to be drawn off the pump jets. The ends of the connector rod should point to the throttle arm side. 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. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. 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. 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. There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). One is in the secondary venturi and the other just above the throttle plate. Note te larger box, and the number of additional tools from the 1935 set. (note) The metering rods will fit into the jets loosely. Home - Carburetor Manual Ebooks You can also check the adjustment by measuring (F) which should be 18/64. Be sure these ports are clear. Hold air horn upside down with floats in place and gasket removed. The well should fill with fluid. 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 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. You should feel some pressure and fluid should not be bypassing the check needle. 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. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. They are staked in the hole. 1955 Pontiac - Loading or Carburetor Flooding Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. Back out throttle stop screw until throttle valves seat in bores. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. Adjust by bending throttle connector rod at deepest angle as shown. With mineral spirits in the float bowl, Raise the pump. REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Carter WCFB 4 Barrel Carburetor 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. It needs about 4 lbs of pressure. 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 Accelerator Pump - Mikes Carburetor Parts . cm448 Carter WCFB Carburetor Manual - carbkitsource.com See figure 9F-2. Adjusting the WCFB float level and float drop. Recheck float adjustments. 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 . I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. Sometimes scraping around the edges with an awl will remove the staking. THE CARBURETOR SHOP / Carter carburetor special tools When Quadrajet carburetors have Carter's basic four-digit identification number before the letter S, the carburetors are aftermarket replacements. Other than that, great company to deal with. Carter WCFB, 4 barrel metering rod adjustment instructions. Watch on. On the WCFB the check ball is usually at the bottom of the pump well. Fig. Place the choke housing toward the left and remove upper right main body to throttle body screw. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. Please complete the fields below to send your friend a link to this product. 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. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). 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. 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. Coat threads of screw with sealing compound and install it. Hold air horn upright with floats hanging. They work fine when I push hard down on the piston. Carter WCFB 4 Barrel Carburetor Float System. Disassembly2. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. How Do You Look up Carter Carburetor ID Numbers Online? - Reference.com Can't find the answer you're looking for. No metering rod gauges are necessary. New fuel pumps are especially suspect. The Carter AFB uses weights, and therefore never goes out of adjustment. Add a couple drops of oil to the leather. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. 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. What more could you ask for? WCFB | Carter Carburetors, Parts & Rebuild Kits Carter WCFB 4 Barrel Adjust Float - YouTube 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. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Make sure these are clear if you have percolation problems. FREE to our customers that buy a rebuild kit. Blowing out passages will not get them clean enough. Product information . Your friend will receive an email from you with a link to our site. Carter WCFB 4 Barrel Carburetor Float System Hold in place and carefully tighten metering rod arm set screw (G). *New Airhorn Gasket7. b. a. 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. The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. Test the floats in hot water and if you get any bubbles then they are leaking. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Recheck unloader settings with carburetor on the engine. 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. 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). BBS) and were basically an on/off condition similar to the function of a power valve. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Seat the intake check by tapping lightly in the hole to form a good seal. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. Can you help me out? He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. 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. 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. 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). Good quality print. 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 download link will expire in 30 days. Make sure the air cleaner gasket does not block the bowl vents. When that is the case, I bend the accel. 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.