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How to rebuild a Rochester Quadrajet part 3

Finishing up the disassembly.


 


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How to rebuild a Rochester Quadrajet part 4





How to rebuild a Rochester Quadrajet part 2
Continuing the disassembly process.





750 vs. 800cfm Rochester Quadrajets-how to tell them apart
There exists a ton of misinformation regarding the actual airflow capacity of the Rochester Quadrajet. Not many people know how many variations there are or how to tell them apart. Here is a simple video explaining how to identify each size based on casting design. I will cover the "cfm-limited" carbs in a separate video.





How to rebuild a Rochester Quadrajet part 7





How to rebuild a Rochestor Quadrajet part 1
Introduction and beginning the disassembly process





How to rebuild a Rochester Quadrajet part 5





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.





How to adjust carburetor mixture screws
Here's how to find and adjust the mixture screws on your carburetor. 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.





How to rebuild a Rochester Quadrajet part 9





re-jet your Quadrajet (part 1)
rejetting a quadrajet





for Tim - Rochester tips





Decoding a Rochester Quadrajet part 2: Breaking down the numbers
In this clip we'll learn how to decipher the Identification number and julian date code on the Rochester Quadrajet.





Why Quadrajet's are awesome part 1





Decoding a Rochester Quadrajet part 3: more practice with the numbers.
Here's one more video that will help you learn to decode the ID numbers found on the Rochester Quadrajet.





Quadrajet HP for $40.
A GEARHEAD PRODUCTION. Throw away the Edelbrock and the Holley and save your money. You can build a hp QJ for less, and get better performance and mpg too.





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