Both valves should be closed. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. The carburetor will flood. Hold air horn upright with floats hanging. Can't find the answer you're looking for? 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 However, it is very similar and I found it very useful. To correct, remove carburetor and turn it upside down. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. 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. WCFB Carburetor Cutting Out on Left Hand Turn. The metering rod adjustment should be done after the pump adjustment. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. 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! Carburetors equipped with an adjustable bowl vent require adjustment. 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. When I slow down to an idle, my engine runs rough. 1955 Pontiac - Loading or Carburetor Flooding 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. 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. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. Add a couple drops of oil to the leather. Correct by removing any burrs or nicks. Rochester and Carter replacement parts are interchangeable. Low fuel pump pressure always check you motors manual for the correct pressure. Clogged idle tube, or passages in the idle circuit. As for the pump not squirting.I suspect the pump well isnt filling up. Fig. The adjustment of the pump is important in order to get the required fuel. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). Ethanol gas does not have much if any lubrication. 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. b. Test the floats in hot water and if you get any bubbles then they are leaking. These diagrams include: Fig. 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 can be done by looking at the impression on bowl cover gasket. What more could you ask for? 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. Hold throttle valve wide open and close choke valve as far as possible without forcing. Be careful removing the intake check retainer. *New Main Body Gasket8. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . This box did not have a part number. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. During high speed operation a vacuum exists at the pump jets. The fuel is also conducted through a passage in the air horn to the secondary needle seat. You may even have to resort to finding a used WCFB carburetor. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. Sometimes scraping around the edges with an awl will remove the staking. 1: Carter WCFB idle mixture and speed adustment screw location. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. 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). With throttle valves seated in bores, dust cover and gasket in place. Install the pump connector rod (D) in the outer hole, long stroke. Older kits 30-70s. 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. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. Anti-Rust "Dichromate" Finish**4. The WCFB carburetor which came on some of the earliest Can't find the answer you're looking for? Adjust by bending lip of float, not float arm. They are not meant to fill the hole, only to restrict it. The ends of the connector rod should point to the throttle arm side. Press down on vacuum piston link C until metering rods bottom in the carburetor body. The flat surface of the pump arm should be parallel to the straight edge. Test the needle by holding it down gently with a brass drift punch. 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. 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). The ends of the connector rod should point to the throttle arm side. To correct, remove carburetor and turn it upside down. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. Watch on. With mineral spirits in the float bowl, Raise the pump. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. Two ports act as calibrated air bleeds. 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. Make sure the ball rattles. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn You cannot go wrong with Mikes carburetor in any way. Fast, secure e-book download. Did the old gasket get removed? The well should fill with fluid. Carter WGD Adjustments Float Level 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. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. Your friend will receive an email from you with a link to our site. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. You should feel some pressure and fluid should not be bypassing the check needle. They are staked in the hole. 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. Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. Hold in place and carefully tighten metering rod arm set screw (G). 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 . Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. Please complete the fields below to send your friend a link to this product. Tyler's Forgotten Car Rescue 22,933 views. 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. 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 Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations. Carter WCFB Rebuild kits: Rebuild Kits. Air Bled has the venturi tube pointing down into the bore. With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. cm448. Measure from toe B to air horn. 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 . If not, then find the check ball and make sure it is loose. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. It should not be opened up. Make sure manifold heat control valve is free. 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. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. Float drop not set, or fuel pump pressure too low. Blowing out passages will not get them clean enough. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . Ideas?? Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! The Carter AFB uses weights, and therefore never goes out of adjustment. When replacing them hold them tight against the wall while tightening the screw. Is there a pointed check weight in the main discharge hole. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. 60 pages of great info. Coat threads of screw with sealing compound and install it. Use a brass drift punch. 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. Gasket removed. 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. 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 the low speed jets to make sure they are clear (#44). Technical Details. BBS) and were basically an on/off condition similar to the function of a power valve. *New Accelerator Pump5. 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. 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 Share. Coat threads of screw with sealing compound and install it. 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. 5:04. Carter WCFB, 4 barrel metering rod adjustment instructions. Gasket between bowl and base is installed backwards (easy to do). Place the choke housing toward the left and remove upper right main body to throttle body screw. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. 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 . The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. There should be a retainer keeping the check ball in place. 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. Refer to the Adjustment Data Table for adjustment dimensions. William C. Carter was born in Union City Tennessee in 1884. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. In this video I show you how to replace the fast idle spring on the WCFB carburetor. 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. Make sure the pontoons are centered and will not rub the bowl sides. Adjust by bending arm (J) on choke trip lever. 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 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. Watch this. Rotate throttle stop screw E until engine idle at approx 500 RPM. The fuel is also conducted through a passage in the air horn to the secondary needle seat. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. Carter WCFB 4 Barrel Adjust Float. When closing the throttle, the accelerator moves up in the pump well. You can also check the adjustment by measuring (F) which should be 18/64. 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. FREE to our customers that buy a rebuild kit. Ethanol leaves deposits behind that acts like corrosion. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. Probably around 4- 4.5lbs. Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. Back out the throttle lever set screw (idle screw) to allow throttle valves to seat in the bores of the carburetor. The piston is brass and can be damaged very easily. *New Airhorn Gasket7. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Adjust by bending unloader lip on throttle shaft lever. 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. Can't find the answer you're looking for? At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Aspringis inserted in the power piston hole, then the piston. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. *New Float6. WCFB carburetors, althqugh basically all units are allke. When that is the case, I bend the accel. On the WCFB the check ball is usually at the bottom of the pump well. cm448: Ebook carburetor service manual - 341 pages, 272 MBytes, pdf format. Be sure these ports are clear. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . Carter WCFB, 4 barrel carburetor manual. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. Do not depress float lip against spring in needle, but let float rest of its own weight. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. On 1956 models one point rich. Metering rods for the WCFB have been out of production for several years now. Change the choke setting to index. Notice holes from which linkage rods are removed so they can Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. 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 accelerator pump circuit resides on the primary side of this carburetor. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. This check prevents excessive pressure in the discharge passage during acceleration. Seat the intake check by tapping lightly in the hole to form a good seal. Piston force is too much for linkage. New fuel pumps are especially suspect. The metering rods must be installed after the pump adjustment or when leaner than standard rods are installed. 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). There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). You need to run wire down all small passages. This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. Adjust by bending lip of float, not float arm. It needs about 4 lbs of pressure. The file is in PDF format, you can download and save/print a copy. Carter WCFB 4 Barrel Carburetor Float System. These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. Carter WCFB 4 Barrel Carburetor Float System. 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). 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. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. Product information . 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. Recheck float adjustments. Solid fuel has the 2 tubes pointing up. Adjust by bending throttle connector rod at upper angle (B). This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Do not depress float lip against spring in needle, but let float rest of its own weight. 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. 1st check to make sure the fast idle linkage isnt holding the valves open. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. See figure 9F-2. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. 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. Free shipping for many products! When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. Someone has installed it improperly. 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. 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. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. If hard starting still exists change the choke setting to one point lean. Everyone Has Started an Engine in the . Put some fluid in theaccelerator pumpwell and press down on the pump. I. DISASSEMBLY. 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. Make sure the pump relief check is clean. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. 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. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. Any pressure put on the needle will damage it. The download link will expire in 30 days. 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. Make sure the air cleaner gasket does not block the bowl vents. The cfm of the Carter WCFB four-barrel carburetor is approximately 400. 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. Adjust by bending throttle connector rod at deepest angle as shown. Adjusting the WCFB Metering Rods The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. The discharge check is seated at this time to prevent air being drawn into the pump well. Some have a coating to give it a better shelf life. Back out throttle stop screw until throttle valves seat in bores. Install the pump connector rod (D) in the outer hole, long stroke. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. Good quality print. When removing valves they should be marked so that they get put back the same way. We will contact you as soon as this product is available. 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. Must be made after fast idle adjustment. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. 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.

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