Find great deals on ebay for rochester carburetor and rochester carburetor 2 barrel. Rochester quadrajet installation these instructions cover all quadrajets. In 1995 rochester became part of delphi, which in turn became a separate company four years later, and continues to manufacture fuel. Quadrajet rebuild instructions for qjet carburetors cliffs. Helpful information you need when you rebuild your carburetor.
Complete overhaul and rebuild instructions for the rochester quadrajet four barrel carburetor. There are three basic model g rochester twobore carburetors. Remove the airhorn top casting, remove the venturi cluster, measure the internal diameter of the main venturi, and then consult the chart in the book. New rochester carburetor parts hot rod carburetors. General description the rochester model h and hv carburetors are used on the chevrolet corvair six cylinder opposed air engine. The rochester model h and hv carburetors are used on the chevrolet corvair six cylinder opposed air engine. Holley 1920, 1940, 1945, 2210, 2245, 5200, 5210, 5300 carburetor manual. Cartech published this book back in 2006, and it has served as a reference for many enthusiasts.
Delco rochester there are three basic model g rochester twobore carburetors. Your guide to the most popular rochester carburetors 2barrel this original rochester 2g has definitely earned its keep over the decades, and it shows. This book, how to rebuild and modify rochester quadrajet carburetors, seeks to lift the veil of mystery surrounding the qjet and show owners how to tune and modify their carbs. This test is performed to ensure that all idle circuits and other carburetor functions are working properly. The best part is all that grease it has preserved the carburetor and protected it from corrosion and other various maladies. Some of the most soughtafter rochester carbs are the tri power carburetors that used three rochester twojet 2g carbs on the oldsmobile j2 setup, 348 chevy, cadillacs. This float fits these general motors and chrysler rochester dualjet and quadrajet carburetors m2m, m4m which were original to the applications below. Rochester bc published in 1951 rochester dualjet carburetor rochester e2se carburetor rochester e4mee4mc service rochester monojet carburetor rochester triple power pack rochester quadrajet carburetor rochester varajet carburetor. Rochester 2g carburetor rebuild kits carburetor parts.
Locate rochester b carburetor on sale below with the biggest variety of rochester b carburetor anywhere online. Rochester carburetors are known for their durability and simplistic design, yet even. A secondary method of identification, but not present on all 4g series carburetors, is a stamp on the airhorn. September 25, 2005 a searchable pdf version of the service manual has. Dont see what you looking for call 18009942272 or email. Rochester carburetors model built in governor adjustment procedures 1 float level 17010717 dimension 114 gauge bulletin 7008394 n 11564 gauge the ax h the p. All carburetors are installed on our test engine prior to shipping. Ethanol blends in gasoline today are responsible for many fuel system issues and carburetor failures on older corvettes. These procedures are for both the 1 1 4 and 1 1 2 models.
Free carburetor repair manuals manuals are downloaded as pdf files. If a chart showing all rochester carburetors and their internal venturi size exists, i have yet to see one. How to rebuild modify rochester quadrajet carburetors sa design, rochester carburetors, revised edition, rochester carburetor manual scribed in this service manual are effective methods of performing service operations. Quadrajet rebuild instructions for qjet carburetors click the links below to view and download adobe acrobat pdf files for the specified carburetors. Small base 2g 2gc 2gv 2jet and chevrolet 4g 4gc 4jet and quadrajet qjet be sure to scroll all the way down the page to see all items. Float drop the fcat 12932 as to a face to the upright e an out and throttle 01 the with hangmg float pump gauge. Later model quadrajet figure 3 carburetor identification tag early models carburetors have no tag but include the part number. Original factory service documentation for rochester carburetors used on general motors applications starting in 1967. Download manuals for carter, holley, autolite, motorcraft, rochester, stromberg, solex, marvel schebler, zenith. We carry carburetor parts for most rochester carburetors. Rochester aa carburetor rochester b, bc, bv, aa, bb carburetor manual be patient, this is a large file. Rochester julian date 1249 indicates 124 day of 1969. In late 1968, the sevendigit part number was stamped vertically into the main housing. Id numbers for a rochester quadrajet carburetor are found next to the throttle level.
In actuality, there were several different styles of rochester twobarrel carburetors manufactured since the 1955 release. Your guide to the most popular rochester carburetors. Rochester carburetor troubleshooting it still runs. This is a brass replacement for rochester 7041468, 7043379, 7044332, 7046300, 17067153, 17067273, 17067275.
This condition which is noticeable in the 2060 mph speed range when accelerating can be cor rected by installing a no. If youre looking for the best price on a remanufactured carburetor for a automobile, marine, or industrial application or simply looking for a carburetor kit, we have thousands of carburetors and carburetor kits in stock and normally ship in three to four working days from the time of your order. Replacement rochester quadrajet carburetors installation and troubleshooting guide 19681981 corvette thank you for choosing mid america motorworks for this high quality remanufactured rochester quadrajet carburetor. How to decode rochester quadrajet carburetor numbers it. Because there are so many different combinations, we cannot possibly duplicate the vacuum signal. Rochester 2gc carburetor repair kit carburetorparts the rochester twobarrel carburetor called the 2g, and later 2gc and 2gv, was introduced in 1955, and use of the 2g carburetor in automotive applications ended in 1979. The qjet is a very capable but often misunderstood carb. And by far, the most popular carb still in use is the holley carb. On 2gc and 2gv models the fast idle is set automatically when the curb idle and mixture is set. Ultimately, this book was an interesting historical read about qjs, but in the big scheme of things it was not all that helpful, even for my qj rebuild. Rochester bc published in 1951 rochester dualjet carburetor manual.
To make restoring these great old cars easier, weve scanned in the entire rochester carburetor service manual covering the years 19321980 and were presenting it here for free. Over time, the rochester carburetors evolved from basis mechanical units to carburetors that were electronically controlled by the vehicles on board computer systems. Some are very large and might take some time to download, depending on your internet connection. How to build and modify rochester quadrajet carburetors. Although this overview of excerpts from that book doesnt cover all the information youll find within its pages, it will hopefully. Once you merge pdfs, you can send them directly to your email or download the file to our computer and view.
Rochester made carburetors from 1932 into the 1990s for many of the greatest cars general motors products like 567 chevies as well as studebaker, packard and others. Rochester 2g, 2gc carburetor manual rochester 4g, 4gc carburetor manual rochester aa carburetor manual rochester b, bc, bv, aa, bb carburetor manual be patient, this is a large file. These files were scanned at a high resolution from the gm factory manuals. Apr 28, 2016 carburetors built before mid1968, have a tag with the part number. Autozone repair guide for your fuel system carbureted fuel system rochester bv 1bbl carburetor. Includes theory of operation, detailed stepbystep service instructions. Completely disassemble both carburetors, but keep the pieces of each carburetor separate a couple of shoeboxes work well for holding the disassembled carburetors. There should be a metal disc affixed to the carburetor for those in the 1965 to 1968 range, and the number was. Lowest prices on quadrajet performance carburetors guaranteed. Rochester quadrajet carburetors up to and including the 1967 model year were identified by a round, pressedin aluminum bottle cap tag on the drivers side of the float bowl near the front. Rochester bulletin 9080 operating systems there are six basic systems used in the model h and hv carburetors. Rochester bc carburetor float bowl screws work loose, install later type gasket black in color 7960 chevrolet truck 235 eng. The manual is in two formats regular html pages with jpeg images of the scanned pages and pdf files. There are two different size throttle bores on rochester twobarrel carburetors, one is 1 14 and the other is 1 12 inches.
American cars and trucks, import cars and trucks, antique cars, classic cars, muscle cars. The 2 ahead of the g means the carburetor has 2 bores, 2 venturii and 2 separate but identical metering systems, one for each carburetor bore. The color was used internally by rochester plant employees to help in the identification of the carburetor. Unloader setting car model clearance checking gauge chevrolet 360 bt108 pontiac 163 rochester 2gc carburetor repair kit carburetorparts the rochester twobarrel carburetor called the 2g, and later 2gc and 2gv, was introduced in 1955, and use of the 2g carburetor in automotive applications ended in 1979. You can count on us to have that hard to get carburetor, because we have over 250,000 carburetors in our inventory, so be assured we will have the carburetor you need. Rochester 4g, 4gc rochester aa carburetor rochester b, bc, bv, aa, bb carburetor manual be patient, this is a large file. A quick how to for tuning your basic rochester carb. All rochester quadrajet carburetors are identified by a seven or eightdigit gm part number. Starting in 1968, the number was stamped on the drivers side of the float bowl above the secondary throttle shaft. Once the carburetor pad on the intake manifold is exposed and open, please cover this opening with a towel, therefore keeping debris and contaminants out of the inside of your engine. A common vacuum tube is connecta5 to cach intake manifold bank to aid in balancing intake. Unfollow rochester carburetor to stop getting updates on your ebay feed. Rochester carburetors were quite possibly the most widely used carburetor in the twentieth century, with over one million units produced by the delco carburetor company, a division of general motors.
The carburetors had multiple designs ranging from the rochester monojet carburetor, to the dual jet rochester carburetor, to the most popular rochester quadrajet carburetor. They are in identical pairs with carburetor supplying fuel for three of the six cylinders. Rochester 2g carburetor inlet fittings carburetor parts. Motorcraft 2700 7200 carburetor manual large file, but great manual. With a gasket scraper and a cleaning agent, remove all gasket material and sealant residue on the carburetormounting pad of the intake manifold. Once files have been uploaded to our system, change the order of your pdf documents. Carburetors 3,2 carburetor parts 1,420 chokes 143 throttle body. Rochester b carburetor community chevy automotive sales inc. All twobarrel carburetors had a cfm range of 285 to 450 cfm, and the original 2g used a manifoldmounted thermalspring assembly that connected to the choke via a linkage rod. These carburetors have different main venturi sizes air flow, different fuel jets easily changeable, and different air jets requires machine work to change. Automobile parts and service toggle navigation community chevy. Quadrajet rebuild instructions for qjet carburetors.
The first step and the very more important step is to determine which carburetors to use. The power system is not used in early models, there are several variations in chce systems dependent upon the particular application. Rochester carburetor rebuild kits and parts for all rochester. Rochester built 141 different type b carburetors to be used on engines from 153 cid to 292 cid. Identification codes indicate the car or truck a carburetor was designed for and what transmission it was used with.
Pdf merge combine pdf files free tool to merge pdf online. Rochester carburetor manual to make restoring these great old cars easier, weve scanned in the entire rochester carburetor service manual covering the years 19321980 and were presenting it here for free. The rochester twobarrel carburetor called the 2g, and later 2gc and 2gv, was introduced in 1955, and use of the 2g carburetor in automotive applications ended in 1979. Rochester products division rpd was a division of general motors that manufactured carburetors, and related components including emissions control devices and cruise control systems in rochester, new york. The 1 1 2 model has larger throttle bores and an additional fuel feed circuit to make it suitable for use on the 350 v8s. Rochester bc published in 1951 rochester dualjet carburetor rochester e2se carburetor rochester e4mee4mc service rochester monojet carburetor rochester triple power pack rochester quadrajet. The rochester quadrajet carburetor was found perched atop the engine of many a classic gm performance vehicle. Early quadrajet carburetors figure 3 have the model number identification stamped on a circular tag pressed into a recess on the float bowl casting in a flat area on the throttle lever side. Free carburetor repair manuals mikes carburetor parts. If your rochester quadrajet or dualjet carburetor is hesitating try this trick. If these are your first rochester b carbs to rebuild, set up a camcorder on a tripod, and record the disassembly. Models 2g, 2gc, 2gv service manual carburetor parts. The aluminum tags had an anodized color on the top side. The clearance between the lower edge of the choke valve and the air horn wall should be 0.
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