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#26 |
Registered User
Join Date: Oct 2007
Location: Hyannis,Ne.
Posts: 28
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Re: Quadrajet Carburetor Rebuild
Lawman02; I've rebuilt many Q-Jets in my lifetime of Chevy ownership, and in my experience if your carb is running rich, the culprit is the float. Some of these carbs had a brass float and some had a phenolic resin float. Both were subject to their own failures. The brass float would crack due to vibration, and the phenolic resin float would soak up gas, they both got heavy and caused the wet fuel level to be high which equals rich mixture and poor fuel economy. Rebuilding them is not rocket science, but very close attention must be paid to measurments and for sure the float level. I would be glad to help if you decide to tackle this yourself...
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#27 |
Registered User
Join Date: Aug 2007
Location: Boise, Idaho
Posts: 676
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Re: Quadrajet Carburetor Rebuild
cruiserman
Good to see another member in the area!!! Just will be starting to work on mine, just got it in the fall. I love to drive it more than my Dakota! nofords I might just tackle the job, heard before of the floats, maybe clean it up check a few things and replace the float, I'm mech. inclined, work on air craft for 10 years so I think I can do this. I'll check on some basic rebuild kits from some where? I should be able to get them locally. Last edited by aventur1; 01-24-2008 at 11:10 AM. Reason: spelling |
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#28 | |
Gone to greener pastures
![]() Join Date: May 2007
Location: Gateway to the Delta
Posts: 7,354
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Re: Quadrajet Carburetor Rebuild
Quote:
We're literally talking DECADES. Yeah. I'm that damn old.
__________________
'69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck |
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#29 |
Registered User
Join Date: Jun 2006
Location: Janesville, WI
Posts: 13
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Re: Quadrajet Carburetor Rebuild
What you need to do is buy a rebuild a kit and any other parts you need for your carb, then find a guy who knows how to do it and buy him a case of beer if he does it for you. Thats what I did and now my carb works great.
__________________
__________________________________ 1969 GMC 3/4 Ton 4x4 - 350 4-Speed 2004 GMC Sierra 1500 4x4 - 5.3L Auto |
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#30 |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,714
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Re: Quadrajet Carburetor Rebuild
Here's a pretty good site for re-building Q-jets with pics. There's even one that show the Idle adjustment screws.
http://www.4wheelnoffroad.com/qjet.html
__________________
VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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#31 |
Registered User
Join Date: Aug 2007
Location: Boise, Idaho
Posts: 676
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Re: Quadrajet Carburetor Rebuild
Hey a case of beer sounds good! We can drink it and rebuild the carb! Thanks for the carb rebuild site, now I have 2 sites to compare.
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#32 | |
Junior Member
Join Date: Nov 2005
Location: Saint Francisville, Louisiana
Posts: 157
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Re: Quadrajet Carburetor Rebuild
Quote:
__________________
1972 GMC K2500, stepside, stock 350, 4 speed. Former F/D truck with 32,000 miles, no rust. 1973 Jeep CJ 5, 304, 33's with side pipes 2008 GMC 2500HD, CC, SWB, D/A, SLT |
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#33 |
Registered User
Join Date: Aug 2007
Location: Boise, Idaho
Posts: 676
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Re: Quadrajet Carburetor Rebuild
Here's another link about Quads. to help out.
http://www.lbfun.com/Corvette/Tech/v...ng%20Paper.pdf |
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#34 | |
Senior Member
![]() Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 9,516
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Re: Quadrajet Carburetor Rebuild
Quote:
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__________________
Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
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#35 |
Registered User
Join Date: Aug 2006
Location: Louisiana
Posts: 18
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Re: Quadrajet Carburetor Rebuild
Randy,
Get the carb number off the driver side rear of the main body, and lets see about getting a good overhaul kit, along with new float and filter, etc. These guys have really good parts, if we can't do good at NAPA. http://www.carburetor.ca/carbs/HTML/...s/catalog.html We'll "get er dun", Charles |
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#36 | |
Registered User
Join Date: May 2004
Location: Topeka, Ks
Posts: 2,293
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Re: Quadrajet Carburetor Rebuild
Quote:
Jeff
__________________
I'm not a pessimist, I'm just optimistic that bad things are going to happen. 1971 Cheyenne Super K10 - tilt, cruise, air, am/fm, tow hooks, factory buckets! 1986 Jeep J10 pickup, - 5.3L Vortec with 4L60e and NP241. |
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#37 |
Registered User
Join Date: Aug 2007
Location: Boise, Idaho
Posts: 676
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Re: Quadrajet Carburetor Rebuild
Thanks Chip
I did call a local carb shop here. Told him I'm not getting very good gas mileage, like 9.1 driving around doing the speed limit, not putting my foot into it etc. etc. Well he asked if I passed the emission test that we have here in Idaho. Yes, I passed no problem, then he said well your carb is ok. Now if I'm only going to get 9 or 10 mpg I thought to myself I might as well get a 400 HP engine and have some fun and get the same mileage. I suppose I could look into another manifold and carb also. I would bet I should be getting at least 12 to 14 at the most which would be ok, I would understand that! It's a daily driver and I really like driving it around. |
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