How to rebuild a Rochester Quadrajet 4MV carburetor
(→Online Sources for Identification and Decoding: <<-- Section eliminated. Links are listed under the Identification article.) |
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| − | :If you are a more visual learner, please check out Video series by [http://www.youtube.com/user/alpheus1975 alpheus1975] on [http://www.youtube.com | + | :If you are a more visual learner, please check out Video series by [http://www.youtube.com/user/alpheus1975 alpheus1975] on [http://www.youtube.com YouTube]. Newer, improved videos may be available by other authors as well so be sure to check for current material. |
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| − | :*Carburetor stand - used to keep the carburetor in place while working on it. It is useful for testing out all linkages before re-installation. You can buy one from any performance auto parts supplier or build | + | :*Carburetor stand - used to keep the carburetor in place while working on it. It is useful for testing out all linkages before re-installation. You can buy one from any performance auto parts supplier or build your own. For ideas, check out this [http://www.forabodiesonly.com/mopar/showpost.php?p=498702&postcount=2 post] on [http://www.forabodiesonly.com/ For A-Bodies Only] |
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#Prepare your work area by cleaning it. Chemicals do spill and small parts do fall. Clear off and remove any obstructions now. #Organize your tools for easy access. Need help? Check out [http://www.hotrodders.com/forum/quick-organization-tools-your-garage-pays-off-177558.html "Quick organization of tools in your garage pays off!"] | #Prepare your work area by cleaning it. Chemicals do spill and small parts do fall. Clear off and remove any obstructions now. #Organize your tools for easy access. Need help? Check out [http://www.hotrodders.com/forum/quick-organization-tools-your-garage-pays-off-177558.html "Quick organization of tools in your garage pays off!"] | ||
#Print out the '''''Procedures''''' section of this article and keep it at your workspace. This way, you won't get any grease on the books or the computer. | #Print out the '''''Procedures''''' section of this article and keep it at your workspace. This way, you won't get any grease on the books or the computer. | ||
| − | #If you are a visual learner and can keep a laptop or other computer device with internet access | + | #If you are a visual learner and can keep a laptop or other computer device with internet access nearby, you can follow along with the video series by [http://www.youtube.com/user/alpheus1975 alpheus1975] on [http://www.youtube.com YouTube], or any other video/multimedia resource you find helpful. |
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:*Top of the carburetor | :*Top of the carburetor | ||
:*All linkages | :*All linkages | ||
| − | :*All hoses, including where | + | :*All hoses, including where they originate from if possible ''(i.e. hose from vacuum advance canister to carburetor)''. |
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According to Hotrodders forum member '''''willys36@aol.com''''': | According to Hotrodders forum member '''''willys36@aol.com''''': | ||
| − | <blockquote>''Worn throttle shafts are self inflicted. To avoid premature wear on any carburetor, set up the throttle return spring as shown in the 'Best Case' in this picture: [http://www.hotrodders.com/gallery/data/500/2439throttle.jpg Click here for image].''</blockquote> | + | <blockquote>''Worn throttle shafts are self-inflicted. To avoid premature wear on any carburetor, set up the throttle return spring as shown in the 'Best Case' in this picture: [http://www.hotrodders.com/gallery/data/500/2439throttle.jpg Click here for image].''</blockquote> |
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'''Cautionary Note:''' According to [http://www.hotrodders.com Hotrodders] forum member '''''trees''''': | '''Cautionary Note:''' According to [http://www.hotrodders.com Hotrodders] forum member '''''trees''''': | ||
| − | <blockquote>''"Soaking all | + | <blockquote>''"Soaking all metallic parts is the way to go but using small brushes lightly is a good ideal. Do not soak non-metallic items." ^''</blockquote> |
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====="White Stuff" Build Up===== | ====="White Stuff" Build Up===== | ||
| − | For information on the ''"white stuff"'' that can build up on carburetor castings, | + | For information on the ''"white stuff"'' that can build up on carburetor castings, please see the discussion on the ''Hotrodders'' thread, [http://www.hotrodders.com/forum/quadrajet-211629-3.html '''''Quadrajet''''']. |
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'''Cautionary Note:''' According to [http://www.hotrodders.com Hotrodders] forum member '''''trees''''': | '''Cautionary Note:''' According to [http://www.hotrodders.com Hotrodders] forum member '''''trees''''': | ||
| − | <blockquote>''"One last rinse with the cleaner and blow dry | + | <blockquote>''"One last rinse with the cleaner and blow dry everything. Make sure you use eye protection for this because the solvent can do serious damage!" ^''</blockquote> |
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;[http://home.earthlink.net/~quadrajets/quadrajet_airflow_ratings.htm '''''Quadrajet Air Flow Ratings'''''] by GRZ | ;[http://home.earthlink.net/~quadrajets/quadrajet_airflow_ratings.htm '''''Quadrajet Air Flow Ratings'''''] by GRZ | ||
| − | : | + | :Discusses the Quadrajet's air flow ratings from factory, and tips on modifying or replacing the air valve shaft, the secondary metering rods and hangar, and the cam follower for maximum air flow. |
| − | ;Video series by [http://www.youtube.com/user/alpheus1975 alpheus1975] on [http://www.youtube.com | + | ;Video series by [http://www.youtube.com/user/alpheus1975 alpheus1975] on [http://www.youtube.com YouTube] |
:Gives a detailed, step-by-step demonstration of disassembling and rebuild a Quadrajet carburetor. Although the carburetor he uses is a marine application, the procedure is the same. | :Gives a detailed, step-by-step demonstration of disassembling and rebuild a Quadrajet carburetor. Although the carburetor he uses is a marine application, the procedure is the same. | ||
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