carter wcfb carburetor adjustment
lexus f sport front emblemYou are flooding (getting too much gas in the float bowl), caused by these types of problems. When that is the case, I bend the accel. All These Part Numbers Interchange Into Our Part No. Make sure the pontoons are centered and will not rub the bowl sides. Correct by removing any burrs or nicks. Refer to the Adjustment Data Table for adjustment dimensions. Make sure the pump relief check is clean. Everyone Has Started an Engine in the . Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). The idle mixture screws adjust the amount of air/fuel mixture that goes up to the venturi at idle. 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 . 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. 1963-64 Studebaker Carter AFB 1962-1965 Chevrolet 327 and 409 engine carburetor manual 1958-1968 Lincoln carburetor manual AVS 1966 Chevrolet 327 and Marine Carter AVS carburetors BB Ball and Ball Single Barrel downdraft manual: 1939-60 Chrysler, Dodge, Plymouth Carter BB, BB1, BB1A and BB1D updraft Carter BB for IHC BBD Run a blunt object around the inside of the leather cup to make sure any coating is broken. I. DISASSEMBLY. Put a straight edge across the dust cover as illustrated. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. Carter WCFB 4 Barrel Carburetor Float System. This eliminates any bog or hesitation when acceleration. Install the pump connector rod (D) in the outer hole, long stroke. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. 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. 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. This is an electronic rebuild manual, no physical copy will be provided. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Ultra-Sonic Cleaning3. Hold air horn upside down with floats in place and gasket removed. If not, then find the check ball and make sure it is loose. Both valves should be closed. Other 4 barrel carburetors such as the Carter AVS, Carter TQ, Rochester 4GC, and Rochester Q-Jet have a tensioned secondary spring. No metering rod gauges are necessary. Carter WCFB Fast Idle With carburetor installed and engine warmed up. 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. 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 file is in PDF format, you can download and save/print a copy. Make sure these are clear if you have percolation problems. Carburetors equipped with an adjustable bowl vent require adjustment. The vacuum piston is no longer produced and can only be found as a NOS piece, or used. We will contact you as soon as this product is available. The discharge check is seated at this time to prevent air being drawn into the pump well. You should feel some pressure and fluid should not be bypassing the check needle. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. This restricts the flow of fuel. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. 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. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Take the top off and put the pump in the well all the way to the bottom. Add a couple drops of oil to the leather. 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. When removing valves they should be marked so that they get put back the same way. A fuel pump cannot be tested by unhooking the line and seeing if gas comes out. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. Back out throttle lever set screw until throttle valves seat in bores of carburetor. Turn knurled nut of gauge until finger on gauge just touches top of plunger shaft (A). The bowl vent is used to vent the float bowl, otherwise a siphoning of the gas can occur. Disassembly2. Piston force is too much for linkage. parts. Could the float bowl actually be the problem? *New Main Body Gasket8. Hold in place and carefully tighten metering rod arm set screw (G). Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. Carter WCFB 4 Barrel Carburetor Float System, Engine wont idle, or dies after the choke is opened, or runs better when choke closed. Pulloffs : CUFWCFB2 $ 0 . At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. 1955 Pontiac - Loading or Carburetor Flooding Carter WCFB, 4 barrel metering rod adjustment instructions. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. 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. Two ports act as calibrated air bleeds. The ends of the connector rod should point to the throttle arm side. 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 What Has Been Done to This Carburetor?1. 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. Other than that, great company to deal with. 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). It will be very helpful as I try to improve my performance and emissions of my 57 Corvette street machine. When I slow down to an idle, my engine runs rough. Holding the rods down and seated in the bottom (J), revolve metering rod arm until finger on arm contacts lip (K) of vacumeter link. Note te larger box, and the number of additional tools from the 1935 set. 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. Hold air horn upright with floats hanging. As for the pump not squirting.I suspect the pump well isnt filling up. The well should fill with fluid. Share. They are staked in the hole. To correct, remove carburetor and turn it upside down. Adjust by bending arm (J) on choke trip lever. DO NOT apply any pressure on the needle. Carter WCFB Accelerator Pump Quick test to see if the accelerator pump is working. This check prevents excessive pressure in the discharge passage during acceleration. Coat threads of screw with sealing compound and install it. 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. 3: Holley 4150 idle mixture and speed adjustment screws. Most of the single step rods were steel. 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. FREE to our customers that buy a rebuild kit. To correct, remove carburetor and turn it upside down. Blow air through the main discharge to make sure the passage is clear all the way to the pump well. 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 1956 Chevrolet Corvette & Super Power Kit Engine Idle Speed, Idle Mixture and Throttle Linkage Adjustment Procedure. Use a brass drift punch. Rotate throttle stop screw E until engine idle at approx 500 RPM. 5:04. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. Secondarys are somehow stuck open (which amounts to a vacuum leak). When closing the throttle, the accelerator moves up in the pump well. As the spring fatigues, the air valve will open too soon, creating an instantaneous lean condition, and a bog. Press down on vacuum piston link C until metering rods bottom in the carburetor body. I have repeated multiple times with same results. Product information . Free shipping for many products! Outside top of early Carter tool box with correct decal. Anti-Rust "Dichromate" Finish**4. The mixture screw may be bent, or damaged. Place the choke housing toward the left and remove upper right main body to throttle body screw. It needs about 4 lbs of pressure. During high speed operation a vacuum exists at the pump jets. Ethanol gas does not have much if any lubrication. If it is, tap gently with a hammer and the same brass drift punch to seat it, or replace the check weight. 60 pages of great info. William C. Carter was born in Union City Tennessee in 1884. One of the butterflies is open about 1/8 with the carburetor dis assembled. Must be made after fast idle adjustment. How to clean the Jeep Carter BBD carb Idle jets - Duration: 7:14. 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. The most complete document I have found. Can't find the answer you're looking for. Test the floats in hot water and if you get any bubbles then they are leaking. Install the pump connector rod (D) in the outer hole, long stroke. 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. Gasket between bowl and base is installed backwards (easy to do). As the throttle is opened the pump moves down the pump well forcing the intake check closed and forcing fuel out the main discharge. Rochester and Carter replacement parts are interchangeable. Probably around 4- 4.5lbs. Fuel pump working as it should (pulsates and sprays gas each time cam lobe activates it). Fast, secure e-book download. These diagrams include: Fig. 41-108N Carter 2818S Carter 3059S What Has Been Done to This Carburetor?1. Recheck float adjustments. Adjust by bending lip of float, not float arm. 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. Be careful removing the intake check retainer. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. The metering rod adjustment should be done after the pump adjustment. If the fuel bowl is not filling up enough to fill the pump well, then look at a sticking float needle. Enter Carb Number. Adjust by bending float arms, making sure both pontoons on each float are the same height. The fuel is also conducted through a passage in the air horn to the secondary needle seat. 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. At idle you are at maximum vacuum which makes the metering rods drop down into the main jets. Reinstall carburetor, align and readjust inter connecting rod to manufacturers specifications. Check the low speed jets to make sure they are clear (#44). It should not be opened up. This allows air instead of fuel to be drawn off the pump jets. Each size must be used in its own location. Access our free Idle Speed and Mixture Repair Guide for Chevrolet Corvette 1963-1982 through AutoZone Rewards. Gasket removed as shown A. Carter WCFB Adjustments Metering Rod Adjustment Back out throttle screw so that the throttle valve close completly. Float drop not set, or fuel pump pressure too low. The Carter AFB uses weights, and therefore never goes out of adjustment. They work fine when I push hard down on the piston. Low fuel pump pressure always check you motors manual for the correct pressure. Carter WCFB 4 Barrel Carburetor Float System. With carburetor installed and engine warmed up. You cannot go wrong with Mikes carburetor in any way. 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 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 . When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. Make sure the air horn contacts the inner wall of the bowl. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. Back out the throttle lever set screw (idle screw) to allow throttle valves to seat in the bores of the carburetor. This is percolation. Make sure there is a check needle below the main discharge. Be sure these ports are clear. When replacing them hold them tight against the wall while tightening the screw. 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. Look for breaks in the new gasket, or cracks around the threaded area.The needle could have been damaged while adjusting the floats. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. They need to be centered in the bowl.Fuel could be leaking around the needle & seat. Will Carter introduced the world's first 4-barrel carburetor, the WCFB (Will Carter Four Barrel) which raised air-flow to unprecedented levels. Ultra-Sonic Cleaning3. The correct way is to use a fuel pump pressure gauge. This box did not have a part number. What more could you ask for? Tyler's Forgotten Car Rescue 22,933 views. 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. 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. 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 . 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. *New Airhorn Gasket7. 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 accelerator pump circuit resides on the primary side of. Adjust by bending throttle connector rod at upper angle (B). Metering rods for the WCFB have been out of production for several years now. The flat surface of the pump arm should be parallel to the straight edge. The ends of the connector rod should point to the throttle arm side. 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. The high speed air bleed and the secondary bleed tube also acts as an anti-percolator. 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. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. but if it runs well you don't really need to make any adjustments. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. Your friend will receive an email from you with a link to our site. Watch on. WCFB carburetors, althqugh basically all units are allke. Fig. 2: Carter AFB idle mixture and speed adjustment screws. . Someone has installed it improperly. Carter WCFB Build Sheets The piston is brass and can be damaged very easily. You need to run wire down all small passages. Also make sure one isnt rubbing on the side. Fig. With mineral spirits in the float bowl, Raise the pump. 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? WCFB Carburetor Cutting Out on Left Hand Turn. This can be done by looking at the impression on bowl cover gasket. When done you should see very little daylight around the valve. 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 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. New fuel pumps are especially suspect. Once you get the piston out, clean, Carter WCFB Vacuum Piston the cylinder so that the piston move very free up and down. *New Accelerator Pump5. Do not depress float lip against spring in needle, but let float rest of its own weight. These manuals contain specifications, parts lists and instructions.The manuals can also be used to help identify those carburetors without tags. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Hold a straight edge across top of dust cover housing, next to the pump arm. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. 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. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . They know their stuff and provide technical assistance and guides in both paper and video formats. Can't find the answer you're looking for? 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. 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! Carter WCFB 4 Barrel Adjust Float. BBS) and were basically an on/off condition similar to the function of a power valve. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn a. Make sure the ball rattles. (note) The metering rods will fit into the jets loosely. b. If the secondary throttle plate is staying open, then check the primary shaft dog and spring. Back out throttle screw so that the throttle valve close completly. You may even have to resort to finding a used WCFB carburetor. Loosen the clamp screw A Press. Aspringis inserted in the power piston hole, then the piston. With the thermostatic coil housing gasket and baffle plate removed, crack throttle valve and hold choke valve closed. Be careful when removing the top of the carburetor that you don't force things and break the piston lever. 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. There should now be .018 .023 clearance between throttle valve and bore of carburetor (side opposite idle port). Disassembly2. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. In this video I show you how to replace the fast idle spring on the WCFB carburetor. Can't find the answer you're looking for? Adjust idle screws D to produce a smooth idle of correct speed is obtained. A WGD usually has a pump arm like that of a WCFB (IIRC). 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. 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. The setups data is the same. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. Because the float is maintained in a level position, needle valve bounce is minimized and excess fuel entry into the bowl is prevented. Please complete the fields below to send your friend a link to this product. Any pressure put on the needle will damage it. 1955 Chevy Hard starting after flooding. 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. We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. If hard starting still exists change the choke setting to one point lean. Check to see that slots in air cleaner gasket line up with vent tubes and do not rotate gasket during installation of air cleaner. Adjust by bending unloader lip on throttle shaft lever. Measure from toe B to air horn. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. See figure 9F-2. Carter WCFB Rebuild kits: Rebuild Kits. Hold throttle valve wide open and close choke valve as far as possible without forcing. Can you help me out? Is there a pointed check weight in the main discharge hole. 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). 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 (. The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. 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. The single step rods were used on some of the price leader carburetors (i.e. There should be a retainer keeping the check ball in place. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. pump rod until the top of the pump arm is horizontal (or the screw that retrains it is perfectly vertical, if you prefer). cm448: Ebook carburetor service manual - 341 pages, 272 MBytes, pdf format. cm448. 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. The flat on top of the pump arm should be parallel to the straight edge. 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 Blowing out passages will not get them clean enough. Put some fluid in theaccelerator pumpwell and press down on the pump. 1: Carter WCFB idle mixture and speed adustment screw location. Sometimes scraping around the edges with an awl will remove the staking. Why Doesn't Adjusting Idle Mixture Screws Make any Difference? This is an electronic rebuild manual, no physical copy will be provided.