Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). Put some fluid in theaccelerator pumpwell and press down on the pump. Press down on vacuum piston link C until metering rods bottom in the carburetor body. Adjust by bending the choke connector rod at lower angle (H). Air Bled has the venturi tube pointing down into the bore. Carter WCFB Rebuild kits: Rebuild Kits. Most of the single step rods were steel. Watch this. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air. Aspringis inserted in the power piston hole, then the piston. Carter WCFB Metering Rods - YouTube 60 pages of great info. Make sure the pontoons are centered and will not rub the bowl sides. BBS) and were basically an on/off condition similar to the function of a power valve. Please complete the fields below to send your friend a link to this product. 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 . Rebuilding Carter BBD carburetor part 3 - Duration: 5:04. Carter WCFB Fast Idle With carburetor installed and engine warmed up. The lower edge of vent valve cap should be raised above surface of dust cover the distance listed in the. Disassembly2. 1955 Pontiac - Loading or Carburetor Flooding Why Doesn't Adjusting Idle Mixture Screws Make any Difference? Carter WCFB Build Sheets Maximum float buoyancy is generally accomplished when the float pontoons are at a 90-degree angle to the fuel valve. Tyler's Forgotten Car Rescue 22,933 views. The flat surface of the pump arm should be parallel to the straight edge. The correct way is to use a fuel pump pressure gauge. If a loss of rpm is noted, or if the engine dies, and air leak exists. I have a 1952 Buick Roadmaster and just rebuilt the Carter WCFB carb, and I'm setting the idle according to the factory manual. Make sure the air horn contacts the inner wall of the bowl. Back out throttle stop screw until throttle valves seat in bores. 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). Adjust idle screws D to produce a smooth idle of correct speed is obtained. Fast Idle or Idle at Cold Start has to be One of the More Important Adjustments on the Carburetor. Place the choke housing toward the left and remove upper right main body to throttle body screw. Any pressure put on the needle will damage it. Fig. Ethanol gas does not have much if any lubrication. Carter WCFB 4 Barrel Carburetor Float System Adjusting the WCFB float level and float drop. The download link will expire in 30 days. Carter Metering Rod Technology - THE CARBURETOR SHOP Some have a coating to give it a better shelf life. The file is in PDF format, you can download and save/print a copy. Gasket between bowl and base is installed backwards (easy to do). Check the low speed jets to make sure they are clear (#44). Servicing The Rochester Quadrajet Carburetor - MotorTrend 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! 19591961 Chevrolet Carter WCFB Carburetor All These Part Numbers Interchange Into Our Part No. The cfm of the Carter WCFB four-barrel carburetor is approximately 400. 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. If the secondary throttle plate is staying open, then check the primary shaft dog and spring. 1955 Cadillac Idle Air Mixture Circuit WCFB Carburetor Cutting Out on Left Hand Turn This E-manual is pictured with the Carter WCFB carburetor with the upper auto choke. This can be done by looking at the impression on bowl cover gasket. When removing valves they should be marked so that they get put back the same way. Hold air horn upright with floats hanging. THE CARBURETOR SHOP / Carter carburetor special tools Test the fuel pump to be sure it isnt putting out too much pressure. 1956 Plymouth, Powerflite Transmission - Dashpot The dashpot has been eliminated. No metering rod gauges are necessary. 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. When replacing them hold them tight against the wall while tightening the screw. Float drop not set, or fuel pump pressure too low. Though fuel float bowl full, cant get gas into the accelerator pump chamber of the carb. Carter WCFB Parts Page - carburetion.com FREE to our customers that buy a rebuild kit. 1: Carter WCFB idle mixture and speed adustment screw location. THE CARBURETOR SHOP / Troubleshooting *New Float6. 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. cm448. Adjust idle screws D to produce a smooth idle of correct speed is obtained. Note te larger box, and the number of additional tools from the 1935 set. When done you should see very little daylight around the valve. Float adjusted wrong check float level.Float leaking heat up some water and immerse the float. WCFB | Carter Carburetors, Parts & Rebuild Kits Recheck unloader settings with carburetor on the engine. b. Also check for overheating of the engine, fuel lines too close to the manifold, or too much heat in the engine department. Be careful removing the intake check retainer. Sometimes scraping around the edges with an awl will remove the staking. Someone has installed it improperly. The suction along with the fuel weight pulls fuel through the intake check via the passage to the fuel bowl. One is in the secondary venturi and the other just above the throttle plate. Carter WCFB Specifications - Mikes Carburetor Parts 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. What more could you ask for? Ultra-Sonic Cleaning3. The ends of the connector rod should point to the throttle arm side. Readjust dashpot plunger to move 1/16 inch on closing of throttle valves. Solid fuel has the 2 tubes pointing up. Can't find the answer you're looking for? 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. This box did not have a part 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. With choke valve held tightly closed, take slack out of linkage and tighten clamp screw on choke lever. Correct by removing any burrs or nicks. This eliminates any bog or hesitation when acceleration. Do not depress float lip against spring in needle, but let float rest of its own weight. Adjust by bending float arms, making sure both pontoons on each float are the same height. Adjust by bending unloader lip on throttle shaft lever. I purchased from you a rebuild kit for Carter WCFB 4 barrel carb on my 1955 Chev. Can't find the answer you're looking for? Should You Build Your Own Carter Carburetor? - Carb-O - MotorTrend There should be a retainer keeping the check ball in place. Measure float height as illustrated above. To correct, remove carburetor and tighten throttle lever by either peening end of shaft over, or soldering end of shaft to throttle lever. parts. 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). The all-aluminum AFB (Aluminum Four Barrel) was a big innovation in 1957, and lives on today under the Edelbrock name. Some models have a pump relief check in the bottom of the fuel bowl. The Carter AFB uses weights, and therefore never goes out of adjustment. The download link can be found on your order confirmation email which you will receive as soon as you complete the order. The Carter WCFB and AFB designs fit easily beneath the low profile C1 and C2 hoods. When that is the case, I bend the accel. It's highlighted yellow and will look something like this. 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 Carter WCFB 4 Barrel Adjust Float. 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. We use a small bottle type of brush and spray silicon spray into the cylinder while we clean. Coat threads of screw with sealing compound and install it. Metering rods for the WCFB have been out of production for several years now. Seat the discharge check by tapping lightly in the hole to form a good seal. 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. During high speed operation a vacuum exists at the pump jets. This circuit provides a measured amount of fuel when needed on acceleration until the vacuum and main circuit can take over. Carter WCFB 4 Barrel Accelerator Pump Circuit - YouTube Can't find the answer you're looking for. 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. The fuel is also conducted through a passage in the air horn to the secondary needle seat. There should now be 9/64 clearance between upper edge of choke valve and inner wall of air horn. 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. Ultra-Sonic Cleaning3. Piston force is too much for linkage. The piston is brass and can be damaged very easily. Good quality print. They know their stuff and provide technical assistance and guides in both paper and video formats. 1957 Desoto Adventurer Loose Throttle Lever Rear Carburetor. It needs about 4 lbs of pressure. Free shipping for many products! WCFB Carburetor Cutting Out on Left Hand Turn. Buy REMANUFACTURED CARTER WCFB CARBURETOR 3696S For 1958-1965 Chevrolet Corvette 327 348: Carburetors . Carter WCFB Accelerator Pump Adjustment The accelerator pump is used to provide an extra squirt of fuel when you step on the gas. Hold in place and carefully tighten metering rod arm set screw (G). In this video I show you how to replace the fast idle spring on the WCFB carburetor. Adjust by bending lip of float, not float arm. To correct, remove carburetor and turn it upside down.