4 Barrel Carburetor For Rochester Quadrajet 4MV 1904R 1906R 600-750 CFM e.Choke

Description: Brand new. Never used. Not refurbished. New in original packaging.Ships out same-next business day. Authentic, original, genuine item.Please see all pictures.Item from a climate controlled, smoke-free, pet-free building. THUNDERMINGO 4 Barrel Carburetor for Rochester Quadrajet Carb 4MV 1904R 1906R for GM Chevrolet Chevy Cadillac 1980-1989 with 305-350 c.i Engine Vacuum Secondary 600 650 750 CFM Electric Choke Chevy 1980-1989 BrandTHUNDERMINGOVehicle Service TypeCarExterior FinishPolishedFuel TypeelectricRecommended Uses For ProductTrucksAbout this itemReplace Part Number: Direct replacement electric choke 4-BBL carburetor Replace For 1904R 1906R Rochester Quadrajet 4MV Carby. Interchange with 1980 Chevy using 1904R 17066422 17066425 17066432 17066493 17066553 17066556 17066563 17066605 17080202 17080204 17080207 17080228 17080274 17080282 17080284 17081282 17081283 17081284 17081285 17082280 17082281 17082282 17082283 17082284 17083282 17083283 17084284 17084285 17084288 17084289. 1981-1986 1906RFitment: Carburetor Fits For 1980-1989 Chevy 305-350c.i. engines with Chevy bowl entrance and linkage style, electric choke, 4-BBL, compatible with EGR. Main Jet: 0.073, Metering Rods: Primary-50m, Secondary-dr.Carburetor Fits For 1982-1985 CHEVY Cars & Truck ROCHESTER 650 CFM 305"-5.0 L. and 350"-5.7L Engines.Not for use with computer controlled vehicles.This Universal Performance carburetors improve throttle response and overall performance throughout the RPM range. Each carb has a distinctly different fuel curve calibrated for a particular application. Do note: Condering the vehicle dispacement range discrepancy, some vehicles may be too rich with black smoke from the muffler, You may have to use The included tool and small copper solid pin to block the air channels to fix it,CFM:Our Carburetor For Rochester Quadrajet can range anywhere in between 600 and 800 CFM. Most are rated 750 CFM In the event the item should fail due to manufacturing defects during intended use, we will replace the part by free. FITMENTS:Fitment: Carburetor Fits For 1980 Chevy cars, use #1904R 17066422 17066425 17066432 17066493 17066553 17066556 17066563 17066605 17080202 17080204 17080207 17080228 17080274 17080282 17080284 17081282 17081283 17081284 17081285 17082280 17082281 17082282 17082283 17082284 17083282 17083283 17084284 17084285 17084288 17084289 Carburetor Fits For 1981-86 Chevy/GMC trucks with electric choke, use #1904R or #1906R 17065524 17067254 17067256 17067258 17067266 17067268 17067280 17067284 17067336 17068501 17068503 17068505 17068587 17068590 17068596 17078230 17078237 17078249 17078254 17078263 17078267 17078282 17078283 17078284 17078297 17079283 17079284 17079287 17079288 17079289 17079290 17079293 17079322 17079898 17079901 17079902 17079906 17079910 17079915 17081200 17081201 17081204 17081205 17081220 17081226 17081227 17081285 17081290 17081291 17081292 17082220 17082221 17082222 17082223 17082224 17082225 17082226 17082227 17082230 17082231 17082234 17082235 17082280 17082290 17082291 17082292 17082293 17083220 17083221 17083222 17083223 17083224 17083225 17083226 17083227 17083231 17084220 17084221 17084226 17084227 17084228 17084229 17084230 17084231 17084239 17086045 17086047 17086053 17086055 17110107 17110110 GENERAL DESCRIPTIONThe Quadrajet is a 4-barrel two stage carburetor of down-draft design.Its simplicity in construction makes it easy toservice, yet its versatility and principles of operation make itadaptable from small to very large engines，without majorcasting changes.There are three separate basic carburetor models. They aredesignated as 4M,4MV, and 4MC. The 4M is the basic car-buretor equipped for manual choke operation.The 4MV isan automatic choke model designed for use with a manifoldmounted thermostatic choke coil.The 4MC model is an auto-matic choke carburetor which has the choke housing and coilmounted at the side of the float bowl. Except for chokesystems,all models have basically the same principles ofoperation.FLOAT SYSTEMThe Quadrajet carburetor is unique in that it has a cen-trally located fuel reservoir (fuel bowl). The fuel bowl iscentered between the primary bores and is adjacent to thesecondary bores. This type design assures an adequate fuelsupply to all carburetor bores, which results in excellent per-formance with respect to car inclination or severity of turns.The float pontoon is solid and is made of a light closedcell plastic material. This feature gives added bouyancywhich allows the use of a single float to maintain constantfuel levels.There are two types of float needle valves used in theQuadrajet carburetor. One type is diaphragm assisted and theother is the standard needle and brass seat.The diaphragm assisted float needle is primarily used witha smaller float and on engines equipped with high pressurefuel pumps. The needle seat is a brass insert and is pressed into the bowl fuel inlet channel below the diaphragm needletip. The seat is not removable, as the needle valve tip is of amaterial which makes seat wear negligible. Care should beused during servicing so that the seat is not nicked, scored ormoved.The float valve is factory staked and tested andshould not be re-staked in the field.On most models, a fuel inlet filter is an integral part of thefloat bowl and is located behind the fuel inlet nut. Shouldthe filter become plugged due to excessive dirt or improperservice, a pressure relief spring located behind the filter element allows fuel pump pressure to force the element off itsseat. This allows fuel to by-pass the filter and enter the car-buretor so the engine will run until the filter can be serviced.It is very important that the filter be serviced periodically toprevent dirt from entering the carburetor metering orifices.The float system (Figure 2) consists of a fuel chamber(float bowl), a single pontoon float, float hinge pin and re-tainer combination, float valve and seat and a float valve pullclip. A plastic filler block is located in the top of the floatchamber over the float valve to prevent fuel slosh into thisarea.The float system operates in the following manner: Fuelfrom the engine fuel pump enters the carburetor fuel inletpassage. It passes through the filter element, fuel inlet valveand on into the float bowl chamber. As the incoming fuelfills the float bowl to the prescribed leve1, the float pontoonrises and forces the fuel inlet valve closed, shutting off fuelflow. As fuel is used from the float bowl, the float dropsallowing the float needle valve to open, allowing more fuel toagain fill the bowl. This cycle continues, maintaining a con-stant fuel level in the float bowl.A float needle pull clip, fastened to the float needle valve,hooks over the edge of the float arm at the center as shownin Figure 2. Its purpose is to assist in lifting the float valveoff its seat whenever fuel level in the float bowl is low. Brand‎THUNDERMINGOVehicle Service Type‎CarExterior Finish‎PolishedFuel Type‎electricRecommended Uses For Product‎TrucksSpecific Uses For Product‎PerformanceManufacturer‎THUNDERMINGOModel‎1904R 1906RItem Weight‎7.98 poundsPackage Dimensions‎13.74 x 11.65 x 6.61 inchesCountry of Origin‎ChinaItem model number‎1904R 1906RManufacturer Part Number‎1904R 1906R

Price: 167.39 USD

Location: Streetsboro, Ohio

End Time: 2024-11-26T03:04:24.000Z

Shipping Cost: N/A USD