Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. Pulloffs : CUFWCFB2 $ 0 .
1952 Carter WCFBsetting idle - Discussion Forums You are flooding (getting too much gas in the float bowl), caused by these types of problems. Seat the discharge check by tapping lightly in the hole to form a good seal. BBS) and were basically an on/off condition similar to the function of a power valve. Fig. 1955 Chevy Hard starting after flooding. It should not be opened up. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. Put some fluid in theaccelerator pumpwell and press down on the pump. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. Tyler's Forgotten Car Rescue 22,933 views. Adjust idle screws D to produce a smooth idle of correct speed is obtained. Test the floats in hot water and if you get any bubbles then they are leaking. Watch this. Run a blunt object around the inside of the leather cup to make sure any coating is broken. Seat the intake check by tapping lightly in the hole to form a good seal. Disassembly2. The WCFB carburetor which came on some of the earliest 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 correct way is to use a fuel pump pressure gauge. parts. The discharge check is seated at this time to prevent air being drawn into the pump well. The well should fill with fluid. 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.
building a wcfb 2x4 setup | Hot Rod Forum From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. They work fine when I push hard down on the piston. Back out throttle screw so that the throttle valve close completly.
Carter WCFB Parts Page - carburetion.com 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?
Check the low speed jets to make sure they are clear (#44). Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. Place the choke housing toward the left and remove upper right main body to throttle body screw. Hold a straight edge across top of dust cover housing, next to the pump arm.
Carter Carburetor Manual I rebuilt a Carter WCFB carburetor with the lower auto choke setup. a. . 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. Share. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). 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 most complete document I have found. Good quality print.
Do not depress float lip against spring in needle, but let float rest of its own weight. The download link will expire in 30 days. Blow through the intake check passage to be sure the passage is open. This restricts the flow of fuel. If not then clean it and try again. The file is in PDF format, you can download and save/print a copy.
Carter Carburetor Identification - Carburetor kits, parts and manuals Hold air horn upside down with floats in place and gasket removed. Carter WCFB 4 Barrel Adjust Float. 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. Make sure the air cleaner gasket does not block the bowl vents. Inspiration for this arrangement was provided by the federal government through its exhaust emissions regulations.
Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. All These Part Numbers Interchange Into Our Part No. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Disassembly2. Sometimes scraping around the edges with an awl will remove the staking. They are not meant to fill the hole, only to restrict it. Be sure these ports are clear. cm448.
1956-1957 Chevrolet Carter WCFB Carburetor Did the old gasket get removed? Please complete the fields below to send your friend a link to this product. Product information .
19571958 Plymouth Fury Carter WCFB Carburetor *Remanufactured | eBay 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 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. Some models have a pump relief check in the bottom of the fuel bowl. Fig. Back off the idle screw so that the throttle plates close completely. With carburetor installed and engine warmed up. If hard starting still exists change the choke setting to one point lean. Make sure there is a check needle below the main discharge. The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented.
THE CARBURETOR SHOP / Carter carburetor special tools Blowing out passages will not get them clean enough. Aspringis inserted in the power piston hole, then the piston. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. How to Adjust a Carter BBD 2 Barrel | It Still Runs The Carter carburetor has been around for a very long time. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. 1st check to make sure the fast idle linkage isnt holding the valves open. When that is the case, I bend the accel. This allows air instead of fuel to be drawn off the pump jets. 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. Ultra-Sonic Cleaning3. 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 Use a brass drift punch.
Can't find the answer you're looking for? 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
PDF Carter Carb Identification Chart - annualreport.psg.fr 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. 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. Carter WCFB Build Sheets 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. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. 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. 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.
PDF Parts List Carter Carburetor Model Wcfb The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. The accelerator pump circuit resides on the primary side of this carburetor. The balance passage also tends to prevent flooding in the event one of the needles should temporarily become stuck open by maintaining equal fuel level between the two float chambers. WCFB carburetors, althqugh basically all units are allke. 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. Can't find the answer you're looking for?
Carter WCFB 4 Barrel Carburetor Rebuild - YouTube What Has Been Done to This Carburetor?1. Correct by removing any burrs or nicks.
cm448 Carter WCFB Carburetor Manual - carbkitsource.com Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. 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. In this video I show you how to replace the fast idle spring on the WCFB carburetor. You need to run wire down all small passages. Carburetors equipped with an adjustable bowl vent require adjustment. FREE to our customers that buy a rebuild kit. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. It needs about 4 lbs of pressure. Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. One is in the secondary venturi and the other just above the throttle plate. 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. Measure float height as illustrated above.
WCFB | Carter Carburetors, Parts & Rebuild Kits Carter WCFB Rebuild kits: Rebuild Kits. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. To correct, remove carburetor and turn it upside down. The metering rod adjustment should be done after the pump adjustment. Place the choke housing toward the left and remove upper right main body to throttle body screw. As for the pump not squirting.I suspect the pump well isnt filling up. 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 This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. Make sure the pontoons are centered and will not rub the bowl sides. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. Then close throttle. 60 pages of great info. Adjust by bending throttle connector rod at upper angle (B).
WCFB 4 Barrel Carburetor Float Adjustment Carter WCFB Metering Rods 4,292 views Jul 15, 2018 28 Dislike Share Save Mikes Carburetor 18.7K subscribers https://www.carburetor-part.com is providing this video about the Carter WCFB 4. 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). Coat threads of screw with sealing compound and install it. Carter WCFB, 4 barrel metering rod adjustment instructions. With mineral spirits in the float bowl, Raise the pump. Put a straight edge across the dust cover as illustrated. Outside top of early Carter tool box with correct decal. If the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. 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. Rotate throttle stop screw E until engine idle at approx 500 RPM. Quick test to see if the accelerator pump is working. Make sure manifold heat control valve is free. Test the fuel pump to be sure it isnt putting out too much pressure. 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. Carter WCFB 4 Barrel Carburetor Float System. The flat on top of the pump arm should be parallel to the straight edge. Adjust by bending the choke connector rod at lower angle (H). Check any vents to make sure they are open. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. Watch on. Make sure the pump relief check is clean. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. When I slow down to an idle, my engine runs rough. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. The single step rods were used on some of the price leader carburetors (i.e.
Carter WCFB 4 Barrel Carburetor Float System 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. 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 Be careful when removing the top of the carburetor that you don't force things and break the piston lever. 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 (. Change the choke setting to index. The fuel is also conducted through a passage in the air horn to the secondary needle seat. Recheck unloader settings with carburetor on the engine. Ideas?? Low fuel pump pressure always check you motors manual for the correct pressure. Older kits 30-70s.
Carter WCFB 4 Barrel Accelerator Pump Circuit - YouTube Gasket removed as shown A.
GM Corvette 1963-1982 Idle Speed and Mixture Repair Guide This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Hold air horn upright with floats hanging. Refer to the Adjustment Data Table for adjustment dimensions. 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. *New Float6. The carburetor will flood. This is an electronic rebuild manual, no physical copy will be provided. 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. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). 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 accelerator pump circuit resides on the primary side of. You may even have to resort to finding a used WCFB carburetor. but if it runs well you don't really need to make any adjustments. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. Any bubbles indicates a leak.Make sure the 2 floats are the same height. Could the float bowl actually be the problem?
THE CARBURETOR SHOP / WCFB and 4-GC floats Examine the viton tip for any marks.Fuel pump pressure could be too high. Anti-Rust "Dichromate" Finish**4. 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. Back out throttle lever set screw until throttle valves seat in bores of carburetor. Probably around 4- 4.5lbs. Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! 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 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. 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 will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. This box did not have a part number. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. Press down on vacuum piston link C until metering rods bottom in the carburetor body. 2: Carter AFB idle mixture and speed adjustment screws. The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. Adjust by bending unloader lip on throttle shaft lever. Carter WCFB Carburetor Catalog Free WCFB Carburetor Manuals These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. Piston force is too much for linkage.
Home - Carburetor Manual Ebooks 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. 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. With throttle valves seated in bores, dust cover and gasket in place. Can't find the answer you're looking for? The vacuum piston is no longer produced and can only be found as a NOS piece, or used. Air Bled has the venturi tube pointing down into the bore. Check throttle linkage to make sure that primary throttle valves come to full wide open position. Ultra-Sonic Cleaning3. To correct, remove carburetor and turn it upside down. This is percolation. 3: Holley 4150 idle mixture and speed adjustment screws. b. Hold in place and carefully tighten metering rod arm set screw (G). 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. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn The piston is brass and can be damaged very easily. 5:04.
1957 Lincoln Accelerator Pump Carter Wcfb Fluorelastomer Cup Ethanol Measure from toe B to air horn. Add a couple drops of oil to the leather. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? If not, then find the check ball and make sure it is loose. One of the butterflies is open about 1/8 with the carburetor dis assembled. You will need to check your motors manual for the spec, but around 4 or 5 should be plenty. Any pressure put on the needle will damage it.
How to Modify a Carter or Edelbrock Carburetor - Muscle Car DIY Rotate throttle stop screw E until engine idle at approx 500 RPM. Float drop not set, or fuel pump pressure too low. These diagrams include: Fig. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. When closing the throttle, the accelerator moves up in the pump well.