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. Adjust by bending arm (J) on choke trip lever. Share. Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Probably not since only one butterfly is open. Carter WCFB 4 Barrel Carburetor Float System. 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. A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. Carter WCFB Carburetor Troubleshooting The ends of the connector rod should point to the throttle arm side. Coat threads of screw with sealing compound and install it. Add a couple drops of oil to the leather. Make sure the air cleaner gasket does not block the bowl vents. With rods held in this position, revolve metering rod arm (F) until lip contacts vacumeter link. Blow through the intake check passage to be sure the passage is open. 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. Carter WCFB 4 Barrel Carburetor Float System. Ideas?? This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Can't find the answer you're looking for. Adjust by bending throttle connector rod at upper angle (B). but if it runs well you don't really need to make any adjustments. Your friend will receive an email from you with a link to our site. Make sure the ball rattles. The carburetor will flood. They are not meant to fill the hole, only to restrict it. Be sure these ports are clear. Adjust by bending the connector rod at the lower bend (E). When I slow down to an idle, my engine runs rough. Adjust by bending unloader lip on throttle shaft lever. 1st check to make sure the fast idle linkage isnt holding the valves open. The cfm of the Carter WCFB four-barrel carburetor is approximately 400. No metering rod gauges are necessary. b. The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. Carter WCFB 4 Barrel Carburetor Rebuild - YouTube Low fuel pump pressure always check you motors manual for the correct pressure. When the engine gets hot and then is shut off, gas can sometimes overheat and then boil. This box did not have a part number. Includes theory, diagrams, detailed specifications, tune-up data and complete overhaul procedures. FREE to our customers that buy a rebuild kit. Adjust by bending the choke connector rod at lower angle (H). Someone has installed it improperly. Watch on. As for the pump not squirting.I suspect the pump well isnt filling up. New fuel pumps are especially suspect. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. Recheck unloader settings with carburetor on the engine. When closing the throttle, the accelerator moves up in the pump well. 1956 Plymouth, Powerflite Transmission Dashpot, 1955 Pontiac Loading or Carburetor Flooding, 1956 Pontiac Hard Starting, Partially Warm Engine. Servicing The Rochester Quadrajet Carburetor - MotorTrend 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. How to Modify a Carter or Edelbrock Carburetor - Muscle Car DIY Ethanol gas does not have much if any lubrication. Manufacturer CARTER : Brand CARTER WCFB : Model Carter 4 BBL WCFB : Item Weight 12 pounds : Country of Origin USA . Fast, secure e-book download. Carter WCFB 4 Barrel Carburetor Float System. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. There should be a retainer keeping the check ball in place. William C. Carter was born in Union City Tennessee in 1884. Hold in place and carefully tighten metering rod arm set screw (G). Fig. Install the pump connector rod (D) in the outer hole, long stroke. 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 . This restricts the flow of fuel. Gasket between bowl and base is installed backwards (easy to do). Gasket removed. Watch this. You cannot go wrong with Mikes carburetor in any way. I rebuilt a Carter WCFB carburetor with the lower auto choke setup. It should not be opened up. Anti-Rust "Dichromate" Finish**4. It isn't unusual for the vacuum piston on the WCFB to become frozen in the cylinder where it resides. Rochester and Carter replacement parts are interchangeable. Carter Metering Rod Technology - THE CARBURETOR SHOP The Carter WCFB, 4 barrel carburetor metering rods are used to meter the fuel getting into the carburetor bore. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. I have taken this carb a part and rechecked floats adjustments and blown out passages with compressed air thank you. 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. Put a straight edge across the dust cover as illustrated. PDF Carter Carb Identification Chart - annualreport.psg.fr Rotate throttle stop screw E until engine idle at approx 500 RPM. Must be made after fast idle adjustment. 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. This allows air instead of fuel to be drawn off the pump jets. Carter Carburetor Manual Be careful removing the intake check retainer. 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). REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Piston force is too much for linkage. PDF Parts List Carter Carburetor Model Wcfb Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. He only had 5-years of formal education and in 1909, he founded the Carter Carburetor Manufacturing Co in St. Louis. Aspringis inserted in the power piston hole, then the piston. 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. Carter WCFB Carburetor Manual - Mike's Carburetor Parts How Do You Look up Carter Carburetor ID Numbers Online? - Reference.com On the WCFB the check ball is usually at the bottom of the pump well. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. 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. When that is the case, I bend the accel. Can't find the answer you're looking for? Be careful when removing the top of the carburetor that you don't force things and break the piston lever. Enter Carb Number. 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. parts. Tyler's Forgotten Car Rescue 22,933 views. 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 (. Make sure the pump relief check is clean. Carter WGD Adjustments - Mikes Carburetor Parts 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. You are flooding (getting too much gas in the float bowl), caused by these types of problems. Can't find the answer you're looking for? Should You Build Your Own Carter Carburetor? - Carb-O - MotorTrend Back off the idle screw so that the throttle plates close completely. It needs about 4 lbs of pressure. GM Corvette 1963-1982 Idle Speed and Mixture Repair Guide On 1956 models one point rich. 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 4 Barrel Carburetor Float System The flat surface of the pump arm should be parallel to the straight edge. Carter WCFB, 4 barrel carburetor manual. 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. The flat on top of the pump arm should be parallel to the straight edge. Do not depress float lip against spring in needle, but let float rest of its own weight. 1957 Lincoln Accelerator Pump Carter Wcfb Fluorelastomer Cup Ethanol Place the choke housing toward the left and remove upper right main body to throttle body screw. Recheck float adjustments. Carter WCFB Metering Rods - carburetor-parts.com 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. Ethanol leaves deposits behind that acts like corrosion. They are staked in the hole. The adjustment of the pump is important in order to get the required fuel. 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 A WGD usually has a pump arm like that of a WCFB (IIRC). Refer to the Adjustment Data Table for adjustment dimensions. Carter WCFB Build Sheets Measure from center top surface of pontoons to air horn. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. One is in the secondary venturi and the other just above the throttle plate. 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 Adjusting the WCFB float level and float drop. Most of the single step rods were steel. The Carter AFB uses weights, and therefore never goes out of adjustment. This can be done by looking at the impression on bowl cover gasket. The fuel is also conducted through a passage in the air horn to the secondary needle seat. Measure from toe B to air horn. With choke valve held closed and fast idle adjusting screw C, or fast idle adjusting tang, on high step of cam. Secondarys are somehow stuck open (which amounts to a vacuum leak). Blowing out passages will not get them clean enough. Carter built the first successful 4 barrel carburetor, the WCFB (Will Carter Four Barrel) which first appeared in 1953 on Buick cars. I have repeated multiple times with same results. Each size must be used in its own location.
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