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Q-jet overhaul

Rochester Quadrajet parts description and overhaul discussion


 


More Videos...


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





Quadrajet parts description ""subscribe!!""
Home sick today...figured id do another instructional video on my q-jet





More Quadrajet tuning, some things! Part one in this saga on Sept 13, 2010
The car has a slight stumble and surge at a light throttle cruise at about 55 to 60 MPH. By swapping out the .050 metering rods to .048 units, the stumble and driveability concerns are now gone. Going richer would mean worse fuel mileage one may think? No! Now that the mixture is right, LESS throttle opening is needed now, which means higher vacuum, and this way the metering rods will block off the correct amount of fuel, and in the proper timing and percentages, so the car runs much smoother. As stated many times, patience and reading up on, and understanding how these intricate carburetors work will help out very much! Enjoy!





Rochester Quadrajet disassembly
http://www.beeterolds@yahoo.com Sorry about my raspy voice i had a killer cold! This video shows the basic parts of the quadrajet.. feel free to email me for anymore information, i have tons of spare Quadrajets and Holleys as well!! Thanks for watching!





re-jet your Quadrajet (part 2)
rejetting a Quadrajet





for Tim - Rochester tips





1977 El camino carb and REV!!!!
i rebuilt my quadrajet 4 barrel and it ran so well that i had to rev it for you comment me and tell me if u like it





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!





Why Quadrajet's are awesome part 1





Quadrajet disassembly part 2 ""SUBSCRIBE!!!!!""
http://www.beeterolds@yahoo.com disassembling my 750cfm q-jet, for more questions comments or information feel free to email me! i have tons of quadrajet and holley parts too.. let me know what you need!! Thanks for watching!





Rochester QuadraJet M4ML
Quadrajet that i tweaked on a HDT VH Commodore - fast acting secondaries.





quadrajet-cam
See 1976 Chevrolet pickup with Rochester quadrajet upgrade on SBC 350 V8. We removed the hood, mounted a camera looking down on the air horn, and took it for a spin, running wide open on an uphill grade. See how the secondary air valve responds to rpm drop at each upshift of the THM. Also included is a smoking burnout.





Quadrajet Electronic Carburetor Rebuild - Teardown Part 2
http://www.carburetor-parts.com. Mike's Carburetor Parts has provided this video about rebuilding the Rochester Quadrajet E4MC, E4ME, electronic version. This video is part 2 of 2, tear down. A later video will feature the assembly of this carburetor. (c) www.carburetor-parts.com





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.





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