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Q-jet overhaul

Rochester Quadrajet parts description and overhaul discussion


 


More Videos...


Why Quadrajet's are awesome part 1





How to adjust Quadrajet secondary air doors
These take some trial and error to get them adjusted so that there is no bog, but it's not hard to do-here's how.





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





Identifying Quadrajet vacuum ports
I always see a lot of questions about what various vacuum ports do on a Quadrajet. Here's a general guide that will point you in the right direction. Remember that there were many different Qjets over the years and vacuum port locations and number will vary. This video is representative of 1975-90 carbs. Enjoy!





for Tim - Rochester tips





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





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





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





Everything you wanted to know about automatic chokes but were afraid to ask
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.





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





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!





How to adjust Quadrajet/Dualjet fast idle
Quadrajet/Dualjet Rochesters have a fast idle adjustment screw that is separate from the base idle screw.Here's how to locate it. NOTE THAT THE CHOKE ITSELF MUST BE WORKING IN ORDER FOR THE FAST IDLE TO FUNCTION.





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!





The Best Oldsmobile 442 Cutlass Olds video on YouTube AAA+++
Tons of badd azz Oldsmobiles yanking wheels doing burnouts and causing mayhem! No doubles from my other video!





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.





Which car is faster? Which Car is Faster?




Similar 1/4 mile timeslips to browse:

1993 Toyota MR2 GTS: 10.050 @ 138.000
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1986 Toyota MR2 AW11: 11.596 @ 118.096
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1991 Toyota MR2 GTS Turbo: 11.700 @ 0.000
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1991 Toyota MR2 Turbo: 12.511 @ 99.910
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1986 Toyota MR2 AW11: 12.584 @ 110.850
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1991 Toyota MR2 GTS Turbo: 12.595 @ 112.050
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1991 Toyota MR2 turbo: 12.750 @ 109.220
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1988 Toyota MR2 AW11: 12.785 @ 105.390
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1995 Toyota MR2 GTS: 12.799 @ 106.380
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