BBS) and were basically an on/off condition similar to the function of a power valve. Seat the intake check by tapping lightly in the hole to form a good seal. (note) The metering rods will fit into the jets loosely. You may even have to resort to finding a used WCFB carburetor. Seat the discharge check by tapping lightly in the hole to form a good seal. This is caused by side strain on throttle lever due to misalignment and maladjustment of the carburetor interconnection rod. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. Air Bled has the venturi tube pointing down into the bore. Technical Details. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). You cannot go wrong with Mikes carburetor in any way. 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. We will contact you as soon as this product is available. Measure float height as illustrated above. The well should fill with fluid. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. 41-98N Carter 2366S Carter 2505S Carter 2555S Carter 2655S Carter 2669S. Everyone Has Started an Engine in the . Your friend will receive an email from you with a link to our site. Ideas?? Blowing out passages will not get them clean enough. Shorter and smaller overall than the 4GC Rochester, the WCFB was the right choice for dual-quads on a compact . Using the exploded view on reverse side as a guide, disassemble the carburetor far enough to permit thorough cleaning and inspec tion o! These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. Put a straight edge across the dust cover as illustrated. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. Enter Carb Number. Check throttle linkage to make sure that primary throttle valves come to full wide open position. Adjust by bending throttle connector rod at deepest angle as shown. Can't find the answer you're looking for? Note te larger box, and the number of additional tools from the 1935 set. 1st check to make sure the fast idle linkage isnt holding the valves open. The single step rods were used on some of the price leader carburetors (i.e. When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. The most complete document I have found. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Fast, secure e-book download. If hard starting still exists change the choke setting to one point lean. Measure from toe B to air horn. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. If not, then find the check ball and make sure it is loose. 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. Free shipping for many products! The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. The ends of the connector rod should point to the throttle arm side. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Fig. This is percolation. New fuel pumps are especially suspect. From my experience it is the most complete and comprehensive source for all things carburetor, encompassing a massive spectrum of makes models and applications. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Back out throttle lever set screw until throttle valves seat in bores of carburetor. All late model WCFB carburetors have three different length bowl cover screws. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . Make sure manifold heat control valve is free. A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. 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 . You can also check the adjustment by measuring (F) which should be 18/64. Adjust idle screws D to produce a smooth idle of correct speed is obtained. Can't find the answer you're looking for? Blow through the intake check passage to be sure the passage is open. 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. One is in the secondary venturi and the other just above the throttle plate. Recheck unloader settings with carburetor on the engine. Both valves should be closed. The adjustment of the pump is important in order to get the required fuel. 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. Gasket removed as shown A. One of the butterflies is open about 1/8 with the carburetor dis assembled. Carter WCFB 4 Barrel Carburetor Float System. 3: Holley 4150 idle mixture and speed adjustment screws. Measure from center top surface of pontoons to air horn. Carter WCFB 4 Barrel Carburetor Float System. Some models have a pump relief check in the bottom of the fuel bowl. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. *New Main Body Gasket8. With carburetor installed and engine warmed up. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Aspringis inserted in the power piston hole, then the piston. Complete service manual: Comprehensive factory service information (341 pages) for the Carter WCFB carburetor. . 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. This eliminates any bog or hesitation when acceleration. 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. Probably around 4- 4.5lbs. Adjust by bending unloader lip on throttle shaft lever. Put some fluid in theaccelerator pumpwell and press down on the pump. This allows air instead of fuel to be drawn off the pump jets. 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? Make sure the pontoons are centered and will not rub the bowl sides. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. Carter WCFB, 4 barrel carburetor manual. Low fuel pump pressure always check you motors manual for the correct pressure. The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. 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. The accelerator pump circuit resides on the primary side of. a. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. Adjust by bending lip of float, not float arm. 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 Place the choke housing toward the left and remove upper right main body to throttle body screw. Make sure the air horn contacts the inner wall of the bowl. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. Adjust by bending arm (J) on choke trip lever. 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. Back out throttle stop screw until throttle valves seat in bores. 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 . Refer to the Adjustment Data Table for adjustment dimensions. Test the fuel pump to be sure it isnt putting out too much pressure. Download was not the correct rebuild instructions for my WCFB carburetor, and the correct version was not available. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. Loosen the clamp screw A Press. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. It's highlighted yellow and will look something like this. Any bubbles indicates a leak.Make sure the 2 floats are the same height. To correct, remove carburetor and turn it upside down. The adjustment of the pump is important in order to get the required fuel. 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. 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 Can you help me out? Gasket removed. 1: Carter WCFB idle mixture and speed adustment screw location. When that is the case, I bend the accel. Take the top off and put the pump in the well all the way to the bottom. Must be made after fast idle adjustment. *New Float6. 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. Good quality print. They sometimes need trimming. 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. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. Back off the idle screw so that the throttle plates close completely. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. WCFB Carburetor Cutting Out on Left Hand Turn. Readjust idle to 500 RPM and fast idle to 1200 RPM On 1955 models set choke two points lean. 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). 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). Other than that, great company to deal with. Some have a coating to give it a better shelf life. 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. They work fine when I push hard down on the piston. Disassembly2. Ultra-Sonic Cleaning3. 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 Watch this. Anti-Rust "Dichromate" Finish**4. Examine the viton tip for any marks.Fuel pump pressure could be too high.