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Quadrajet Electronic Carburetor Rebuild - Teardown Part 1

http://www.carburetor-parts.com. Mike's Carburetor Parts has provided this video about the Rochester Quadrajet, electronic version. Part 1 of the tear down video.


 


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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





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





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!





Mercarb Marine Carburetor Rebuild - Part 2 of 2
http://www.carburetor-parts.com is providing this video which illustrates the rebuilding of the Mercarb marine carburetor.





Quadrajet air leak fix and warped air horn repair tutorial.
How to identify a Quadrajet with a warped air horn without diss assembly or running it on a car. These tips would have saved me time and money which is why I made this video. I also discus how to repair a warped air horn and prevent your air horn from warping in the first place. If you have a whistling noise just off idle then you got some work to do. You will never get your engine tuned right, your cold start performing or decent fuel economy unless your four barrel carburetor is just right. Special thanks to Cliff Ruggles for his book Rochester Quadrajet carburetors and to my brother Adrian who spent hours on tuning and fitting. See this video for description of the technique I used to straighten a warped air horn. http://www.youtube.com/watch?v=l_SgQiVf3_0&feature=youtu.be here is a technique for re-bushing the throttle shaft without drilling. http://rmcavoy.freeshell.org/Q_Jet_bushings.html





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





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





Carter AFB 9000 Carburetor Teardown Part 1 of 6
http://www.carburetor-parts.com is happy to provide this informational video about the Carter 9000 AFB carburetor. This is the 1st part of several videos demonstrating the rebuilding of the AFB carburetor. For the full rebuild video DVD please visit our web store, Mike's Carburetor Parts.





Understanding computer-controlled Quadrajets part 1 of 3
Here are a series of videos that talk about the E2ME/E4ME computer-controlled Dualjets and Quadrajets found on 80's GM products.





Rochester Quadrajet, the results!
Two mishaps, the first shown here, the choke coil I got was wound backwards, it made the choke butterfly wind up TIGHTER as the engine warmed up. I swapped on the one from the old carburetor fast enough, the second mishap made me feel like a crud and what did I mess up later that evening. The car would not start leaving the Etobicoke -Queensway show. It was not getting gas. We got it running by priming the carburetor, and boy, was I ticked at myself. In the end it was not my fault it looks like. The new accelerator pump umbrella and rod was a very poor and frail design, the umbrella came detached and stayed at the bottom of the of the pump well, and was a distressed mess. The maker will get a note from me. The upshot? The old assembly went in, all is perfectly fine, the slight tip-in hesitation is gone now too. Stupid lack of pride it seems these days making parts for even simple things like an old carburetor.





Rochester 4GC Carburetor Rebuild Part 1 of 4
http://www.carburetor-parts.com is happy to provide this information video about rebuilding the Rochester 4 jet carburetor. This video is about rebuilding the 4 barrel throttle body.





Rochester Quadrajet
The last thing to be looked at on the wagon, but really, no old car project is ever done, things keep being played with and adjusted. This is a correct Rochester Quadrajet 4-barrel carburetor I got some time ago, and has been renewed with new seals. The bushings and other hard parts were in good repair, so with the new seals. T o note, I called out the first three serial numbers as being "701" when in fact it starts with "704" . When building up a Rochester, one has to understand they can't just throw parts into it, they may be unhappy with the results. They should also be ready to have to change a jet here, a metering rod there, a spring or two after the unit is on to get the car running perfectly. The Quadrajet is a sweet carburetor, once you understand it a bit. As I am doing. It is running well, but will need a bit more tuning in the way of a stiffer primary metering rod return spring. Other then that, the car has more bottom and top end power, mid range is the same, but the bonus is, fuel mileage has picked up, the leaky bowl of the old unit is gone!





Everything you wanted to know about automatic chokes but were afraid to ask pt3
I've noticed many people drive vehicles with inoperative chokes. Even though chokes can be intimidating, repairing and adjusting them actually is very simple. So, stop pumping that accelerator and follow along as we look at how chokes work and how to repair them.





More Quadrajet tuning, some things! Part two in this Saga Sept 13, 2010
With the camera sitting on the oil filler cap a few more things to show how a metering rod system works on a carburetor. 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 M4ML
Quadrajet that i tweaked on a HDT VH Commodore - fast acting secondaries.




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