Drag Racing 1/4 Mile times 0-60 Dyno Fast Cars Muscle Cars

Q-jet overhaul

Rochester Quadrajet parts description and overhaul discussion


 


More Videos...


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





for Tim - Rochester tips





Decoding a Rochester Quadrajet part 1: The name
Rochester Quadrajets tend to mystify people because of the various model names assigned to them by GM. Add to that a redesign in the '70s and the confusion only grows. In this video we'll learn the different model names and also how to differentiate between early and later-model Qjets. Enjoy!





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





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!





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 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!





How to measure and adjust Quadrajet float level
I have had several requests for this, so here you go: 1. The airhorn has to be removed to do this, but the carburetor does not have to be removed from the engine. 2. Some data says to measure from the toe(end that is opposite from the hinge), some say 5/16 inward from the end, etc. I suggest following the specs for your particular carburetor. 3. With the float in the raised position and the inlet needle lightly seated, measure from the top of the float to the top edge of the carburetor with NO gasket in place. If you have to adjust the float, bend at the area that has the cutouts, 4, If you are experiencing flooding issues then it is an excellent time to install a new needle/seat and float and that should cure flooding problems that are not choke-related.





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.





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





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





Auto Repair & Maintenance : How to Adjust Carburetors
Idle speed and idle mixture are the two most common adjustments made to carburetors, and these adjustments start by warming up the vehicle to full engine-operating temperature. Find out how to perform a lean-drop adjustment with help from an ASE-certified master automobile technician in this free video on carburetors. Expert: Clark Mason Bio: Clark Mason is an ASE-certified master automobile technician. Filmmaker: Christian Munoz-Donoso





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!




Which car is faster? Which Car is Faster?





Similar 1/4 mile timeslips to browse:

1974 Chevrolet El Camino Pro Street: 6.160 @ 223.000
Randy Walker, Engine: 841, Tires: Goodyear


1979 Chevrolet El Camino : 9.900 @ 138.000
BRIAN PENCE, Engine: 496, Tires: HOOSIER 14.5W,32


1978 Chevrolet El Camino ss: 10.310 @ 136.240
james miller, Engine: 355 cu, Tires: 29.5 -12.5w-15 hoosier


1981 Chevrolet El Camino : 10.420 @ 130.950
Craig Ritchie, Engine: 408, Tires: M/T Et Drags 28x9.0/15


1964 Chevrolet El Camino : 10.902 @ 120.070
John Sapone, Engine: 468,


1981 Chevrolet El Camino : 10.940 @ 121.000
Ken Reynolds, Engine: 388, Tires: goodyear drag radials


1982 Chevrolet El Camino SS: 11.000 @ 118.000
Wheels, Engine: 468,


1982 Chevrolet El Camino ss: 11.201 @ 117.950
greg, Engine: 350 chevy, Tires: Mickys skins& drag radial


1980 Chevrolet El Camino : 11.260 @ 120.450
, Engine: 454, Turbos: n/a Tires: 29x10.5x15


1969 Volkswagen Manx PRA Super Gas: 11.390 @ 116.000
Kev Nakamura, Engine: 2276, Supercharger: N/A Turbos: N/A Tires: (F) M/T Front runners (R) MT Drags Slick


1971 Chevrolet El Camino GMC Sprint: 11.440 @ 116.400
Javier R, Engine: 496, Tires: REAR 31X16.5


1974 Pontiac Grandville 2DR: 11.590 @ 115.820
Darby, Engine: 461, Tires: 29X15X10


1970 Chevrolet El Camino ss: 11.760 @ 112.000
cory ralph, Engine: 383, Tires: hoosier 28x10 slicks


1968 Chevrolet El Camino Malibu: 11.803 @ 121.750
Jose Vazquez, Engine: 383 Stroker, Supercharger: Procharger D11SC Tires: 275/50-15 Mickey Thompson ET Streets


1985 Chevrolet El Camino ss: 11.820 @ 112.366
Neil Bonaudi, Engine: sbc 60 over, Supercharger: na Turbos: na Tires: drag lites and 27.50x10.0x15 M&H


1965 Chevrolet El Camino : 11.822 @ 112.380
Stan Allan, Engine: 350, Supercharger: B&M 144 Tires: M/T 10x26


1979 Chevrolet El Camino : 11.830 @ 112.030
300, Engine: 383, Tires: 29-12-15


1967 Chevrolet El Camino : 11.920 @ 112.100
Blasco, Engine: 454 big block done .30 over, Tires: MT


1972 Chevrolet El Camino 405 sbc: 11.954 @ 111.780
Gord Esau, Engine: 405 sbc, Tires: M T 275/50 drag radials


1972 Chevrolet El Camino custom: 12.139 @ 109.990
Gord Esau, Engine: 405 sbc, Supercharger: no Turbos: no Tires: 27 by 11.50 hoosier QT pro


 


©2014 DragTimes - Disclaimer