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How to rebuild a Rochestor Quadrajet part 1

Introduction and beginning the disassembly process


 


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





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





How to diagnose a Quadrajet part 3
Let's take a look inside





Choke Adjustment on Rochester Carburetor
This video shows how to set the Automatic Choke on a Rochester Carburetor with a 350 (small block) chevy Engine,





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





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





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.





How to rebuild a Rochester Quadrajet part 3
Finishing up the disassembly.





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.





How to rebuild a Rochester Quadrajet part 8





Clean a Carburetor, Without Rebuilding it - This Really Works
Do you have a car or truck with a carburetor. Do you think you need a tune up. Want a cheep fix to make it run better. Have you noticed that on youtube that other videos show you how to clean the carburetor choke, but that does not clean anything inside the carburetor. So the other videos don't really help you make your car run better. My video: How to clean a carburetor cheaply and without having to remove it from the engine. This engine has the carter YFA single barrel carburetor on the Ford 300 inline 6. A very good motor but at its age of 240,000 miles it is hard to pass a smog check. To help it pass I spray carb cleaner into the fuel bowl via the fuel bowl vent and this cleans the carb from the inside and the internal parts. This video will show you a handy trick to pass a smog check, and keep your vehicle running smooth. automóvil carburador limpio automóvel автомобиль карбюратор чистый





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





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.





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!





How to rebuild a Rochester Quadrajet part 11




Which car is faster? Which Car is Faster?





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