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

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!


 


More Videos...


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 debog your Quadrajet part 3
In the first two videos we looked at operational theory of the Quadrajet. In this episode we'll explore a couple mistakes the home mechanic often makes in an effort to improve the performance of this unit.





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: Ever since Charter "fixed" my internet and cable after the lightning strike, it hasn't worked right. Go figure. So, if you see this posted then I was finally successful in getting a video uploaded.





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 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 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.





for Tim - Rochester tips





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





Idle Mixture Adjustment on 4 Barrel and 2 Barrel Carburetors
Setting Idle Mixture and Idle Speed on Carburetors with Idle Mixture Screws to Pass the Smog or Emissions Test with a Tachometer





Rochester Carburetor Trick!
If your Rochester Quadrajet or Dualjet Carburetor is Hesitating try this Trick!





Clean a Carburetor Without Rebuilding it and Save Money
Do you own a car or truck that has a carburetor. Are you trying to get your car to pass a smog check. Do you think you need a tune up. 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: In this example the Holley 2150 2 barrel carburetor, on a 1979 FORD 302 or 5.0 litter engine. How to clean a carburetor cheaply and without having to remove it from the engine. This is a way that I avoided having to rebuild my carburetor due to it not working correctly. The problem that I had with mine was that when I gave it the gas it had a dead spot. In other words I'd be going along and give it the gas and it would cough and stall. A friend showed me that by only squirting carburetor cleaner into the fuel bowl and running the engine that it would clean it out. I tried what he told me to do. I ran about half a can of carb cleaner through the carburetor with the engine running and then went for a drive. I got down the road about a mile and entered into the freeway. There was a car coming fast and I was not up to speed and I gave it the gas and it stalled like it used to. I put the transmission into 2nd gear and floored it and that blew out what ever was plugging it up and it has run like new since. This solved the problem I was having, does it sound like a problem you have. Give it a try. If you try this and it works then you have fixed your problem for under 5 dollars, and won't spend hundreds of dollars having a mechanic work on your car. It also helps if you do this before going for a smog check, it will help you pass. automóvil carburador limpio automóvel





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!





Motorcycle Mikuni CV Carburetor Cleaning for Suzuki, Honda, Yamaha Tutorial
Links below. Step by step instruction on how to disassemble, clean and assemble Mikuni CV Carburetors for Suzuki, Honda, Yamaha motorcycles... I hope you find this tutorial informative if long. For parts for your Vintage Japanese Motorcycle, please visit http://z1enterprises.com These guys always have the best prices and fastest shipping. Thank you for watching. Anti Seize Lubricant http://amzn.to/1bKe5HH





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.





Adjusting High Idle on a 4 Barrel Rochester
Adjusting the high idle on a 4 barrel Rochester Carburetor.





Which car is faster? Which Car is Faster?




Similar 1/4 mile timeslips to browse:

1991 Dodge Daytona : 8.180 @ 165.000
Jim Clarke, Engine: 572, Supercharger: - Turbos: - Tires: Hoosier 16 x 33 x 15


1986 Dodge Daytona Super Pro: 8.420 @ 159.860
Mike Halverson, Engine: 540 dodge, Turbos: n/a Tires: goodyear 14.5-32


1986 Dodge Daytona : 9.200 @ 147.460
glenn leber, Engine: 440, Tires: 28.5 x13.5 et streets


1987 Dodge Daytona Shelby Z: 9.860 @ 135.150
Dean Stillie, Engine: 2.4, Turbos: Holset hx40 Tires: Hoosier 12x29x15


1993 Ford Taurus SHO Pro Front Wheel Drive Car: 10.042 @ 131.066
Tom Mucculant, Engine: 3.7, Turbos: GT40R Tires: DRAGS


1984 Dodge Daytona : 10.330 @ 127.840
Glenn Smith, Engine: 2.2 turbo, Turbos: super 60 Tires: 33 by 16 Hoosier


1992 Ford Taurus SHO: 10.823 @ 126.900
Mark Sholtz, Engine: 3.6, Supercharger: Vortec V-2 S trim Tires: MT et drag


2011 Ford Taurus SHO: 11.952 @ 115.140
Mike Broughman, Engine: 3.6L, Turbos: Tial Sport Upgrade


2010 Ford Taurus SHO: 12.138 @ 117.510
Darrell Stamper, Engine: 3.5 L, Turbos: 2 Tires: Nitto NT05


2011 Ford Taurus SHO: 12.333 @ 111.450
shoman04, Engine: 3.5 ECOBOOST, Turbos: 2


2011 Ford Taurus sho: 12.421 @ 111.380
shoman04, Engine: 3.5 ecoboost, Turbos: 2 Tires: 275x40x20


2010 Ford Taurus SHO: 12.449 @ 112.730
Paul W (paulford8), Engine: 3.5 Ecoboost, Turbos: 2 Tires: Goodyear RSA


2012 Ford Taurus SHO: 12.527 @ 109.750
Dave Ewing, Engine: 3.5 Tranverse V6, Turbos: Twin Tires: Michelin Primacy


2013 Ford Taurus SHO: 12.580 @ 112.970
Storm Walker, Engine: 3.5L V6, Turbos: GT15 Twins Tires: Continental ExtremeContact DSW 245/45R20


1993 Dodge Daytona IROC R/T: 12.595 @ 112.595
mike, Engine: 2.2 lotus head, Supercharger: no Turbos: enforcer 2 Tires: 23X7.5X15


2011 Ford Taurus SHO: 12.669 @ 105.050
SHOMAN04,


2013 Ford Taurus SHO: 12.702 @ 109.340
Dustin Martin,


2013 Ford Taurus SHO: 12.705 @ 110.000
ShoBoat, Engine: 3.5 EcoBoost, Turbos: 2


2013 Ford Taurus SHO: 12.719 @ 109.240
Storm Walker, Engine: 3.5L V6, Turbos: GT15 Twins Tires: F1 245/45ZR20


2013 Ford Taurus SHO: 12.737 @ 109.100
ShoBoat,


 


©2014 DragTimes - Disclaimer