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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.





Detailed Quadrajet Carburetor Rebuild Classic G-Body Garage
The most detailed how-to quadrajet carburetor rebuild. CLASSIC G-BODY GARAGE is your official Automotive G-Spot for ALL 78-88 G-Body cars including: Cutlass, Malibu, El Camino, Caballero, Grand Prix, Regal, Monte Carlo and Bonneville. Whether your a G-Body owner or want to own, have questions or problems with your G-Body, this is your outlet! Enjoy this group as you enjoy your G-Body! NEED OR SELL PARTS? EMAIL CALL OR TEXT 440-781-9018 Join the CLASSIC G-BODY GARAGE FACEBOOK GROUP! https://www.facebook.com/groups/1468460740084238/





Idle Mixture Adjustment on 4 Barrel and 2 Barrel Carburetors
Setting Idle Mixture and Idle Speed on Carburetors with Idle Mixture Screws to Pass the Smog or Emissions Test with a Tachometer





how to minimize engine bog with a Quadrajet carb
this is to minimize engine bog when the pedal is to the metal. do not over tighten, very small spring...you want to try 1/4 turns or 1/2...q-jets are good if tuned properly. also when you are tightening screw it will have tension on it so keep the screwdriver firm. 1986 gmc sierra single straightpipe to cherrybomb. you will need a small flathead screwdriver and a 3/32 allen key. be sure not to tighten to much or else your vacuum secondary flaps wont open.





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