How to de-bog your Quadrajet part 1

Sorry guys, I got the videos a bit out of order. The Rochester Quadrajet has gotten a bad rap over the years, often called a Quadrabog or Quadrajunk. In fact, this is a great multipurpose carbureter once you understand how they work and what not to do to them. In this clip I introduce you to the Quadrajet and begin explaining the theory of operation of these units. Enjoy!

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How to de-bog your Quadrajet part 2
The Rochester Quadrajet has gotten a bad rap over the years, but it's actually an excellent carburetor once you understand how they work. Often referred to as "Quadrabog" or "Quadrajunk", many of the issues these units suffer stem from neglect, or "modifications" that do more harm than good. Being a spreadbore, air-valve secondary design, the Quadrajet is capable of flowing 750 or 800 cfm of airflow, eliminating the need to buy different carburetors when your set-up changes. In addition, the small primaries make for great drivability and fuel economy. In this clip, I'll discuss theory of operation on the secondary side, since that's where most problems arise. So, leave your preconceived notions at the door and let's see what makes these carburetors tick.





Edelbrock Carburetors: Installation and Tuning - 03 Installation
EDELBROCK CARBURETORS INSTALLATION and TUNING Part # 0324 Rev 01/13





How to adjust carburetor mixture screws
Here's how to find and adjust the mixture screws on your carburetor. If you are doing an initial setting after rebuilding, turn each screw out 2-1/2 turns from lightly seated as a baseline to get the engine started. Note that metering-block style carbs such as Holley and Demon more often have one or 2 mixture screws in each metering block depending on the number of venturi. Also those may not be located at the bottom of the carb as in factory carburetors.





Detailed Quadrajet Carburetor Rebuild COMPLETE GUIDE
The most detailed and most popular Quadrajet rebuild video on YouTube will take the fear out of rebuilding your Qjet! After watching my highly detailed video you will be able to rebuild your quadrajet carburetor and get your vehicle running great and back on the road where it should be! The quadrajet rebuilt in this video is of the 1979 era. Some quadrajet carburetor designs vary from year to year however the process will be similar. Electronic Quadrajets from 1980-1990 might need specialized tools to set the MC Solenoid if needed otherwise the rebuild procedure is similar as well. How to replace the Throttle Position Sensor for 1980-1990 Quadrajet and Dualjet carbs: https://www.youtube.com/watch?v=jGEWxVGzdC8 → Subscribe to Classic Gbody Garage: http://www.youtube.com/c/classicgbodygarage?sub_confirmation=1 Classic Gbody Garage Social Media pages: → Join the Classic Gbody Garage Facebook group: https://www.facebook.com/groups/classicgbodygarage/ → Follow Classic Gbody Garage on Instagram: https://www.instagram.com/classicgbodygarage/ → Classic Gbody Garage Channel Home Page: https://www.youtube.com/classicgbodygarage




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