anyone able to rebuild quadra-jet carbs?

[Longhorn Man]

Anyone able and willing? I have one off a 78 or maybe 79 caddy 425, I want it rebuilt before I mount it to an intake, and last time I opened one of these suckers up, it never went back together.
How much would you want?

[jhow66]

Hey Longhorn Man,
I would be glad to it for you if you were closer as I have done hundreds of them over the years. I would do it free of charge (as I am retired-or is that retarded?) but by the time you paid shipping here and back plus the kit and a float and filter, you could probably have a pro close by do it and come out cheaper. Done so many I could take one apart with my eyes closed.

[qksilver]

Jhow, where could I get a kit or? to put bushings in for the throttle shafts

[GMCPerson]

I used a guy in Milford, MI zip 48381. He is retired from Rochester. He charges $150.00. I can get his phone number if you want. Mine looks really nice but I have not tried to start the engine yet so I do not know how well it works. Paul

[neonlarry]

Andy, I'm about the same as jhow66 I could do it but shipping would probably be more expensive than local repair(in fact i've got a caddy 795CFM on the bench right now).
qksilver:
http://quadrajetcarburetors.com/index.html

[RicksTrucks]

I ran across this guy on eBay, he is in Arkansas - 30 miles south of Ft. Smith.

THE COST TO REBUILD YOUR 70 BIG BLOCK TRUCK WOULD BE $168.00 PLUS SHIPPING. THANK YOU FOR CONSIDERING MOUNTAIN MAN FUEL SYSTEMS. 479-639-2022 TED tlowe@centurytel.net

[tkeduk8r]

I would offer to do them too... i dont find them that bad, and ive prolly memorized most of the pages in doug roes book ... but anyway, if time wasnt a huge factor (I started my doctoral work at Univ of Minn) i could do them too... only thing is if i needed replacement parts would have to order them as my parts stash is in storage right now... i would say in the 100-150 range and ill always be willing to trade for stuff and just put the word out that i can do a good job!!! PM me if anyone is interested....
--Mike

[jhow66]

Originally Posted by qksilver

Jhow, where could I get a kit or? to put bushings in for the throttle shafts

qksilver you can buy kits at any parts store. Just take the carb # with you. The # is to the right of gas feed lever-it will look like this --704'''''''' or 1704'''''. I have not replaced any shafts as they seem to work fine without doing it. Shaft wear is cause mostly by using too heavy of a return spring (such as a valve spring ). Dive in you can do it.

[jhow66]

Anyone wanting to know what thier carb came off of can check here:
http://www.teufert.net/

[davidh]

I had mine rebuilt from Jones Fuel out in California. They did a great job. What really cost was shipping there and back but all in all it was around $215. You tell them your motor, modifications vehicle and so forth. I was very happy.

[Longhorn Man]

shipping would only be 5 bucks or so each way... DHL is DIRT cheap.
I'll look into some locals first, may refer back to you guys though.


Any locals have a good carb guy?

[VetteVet]

Here is a good website for rebuilding the Q-Jet. They din't get into replacing the throttle plate shaft bushings however. To me this is a must do on an older carb because if they are worn they will not hold a steady idle.
C'mon Andy give it a try.
http://www.4wheelnoffroad.com/qjet.html

[crazy longhorn]

Originally Posted by VetteVet

Here is a good website for rebuilding the Q-Jet. They din't get into replacing the throttle plate shaft bushings however. To me this is a must do on an older carb because if they are worn they will not hold a steady idle.
C'mon Andy give it a try.
http://www.4wheelnoffroad.com/qjet.html

2nd that, they arent too bad a carb to deal with.....if you do some research. The throttle shafts arent that big a deal (a little rough idle if they are loose). I built a couple of them 10-12 yrs back......the 1 that went on my 425 Cad powered Longhorn was rebushed(Briggs & Stratton valve guides!). I went through the Goug Roe book on the Q jets, & "tweeked" it for what it was worth......spent a week pissin with the jets/needles. That old booger worked DAMN good! when I swapped the old Q jet, for a new Holley spreadbore......dammit I lost power! Go for it, If you WANT it , you can do it just take your time..... L

[qksilver]

Not to hi jack your thread but thanks guys for the info on the bushings....Doug Roe book?

[tkeduk8r]

yes the bible as far as quad's go... mine is about wore out, but my quad confidence went way up after reading and reading and ... well you get the picture... Do a search on amazon for "Doug Roe" and/or "quadrajet" and itll come up... heres the link

http://www.amazon.com/Rochester-Carb...e=UTF8&s=books

Give it a try and its only 12 bucks... so 12 bucks + good read + $25 rebuild kit + vac gauge + timing light + tune time = HE** of a lot of fun!!! and good milage and pretty good reliability.... i like them better than holley or edelbrock for sure...

any questions at all lemme know....
--Mike

[Roachgod]

Jeg's has some nice ones if you can afford it.http://www.jegs.com/webapp/wcs/store...tegoryId=10271
If your set on rebuilding yours I would find someone local with a good reputation.
BTW I have a Qjet off my 79 1ton that came with a 454. I don't know anything about it, but if it's a better one to rebuild than what you have you can have it.I cant really afford to be a member quite yet but want to contribute to someone who contributes to this awsome forum.

[special-K]

I just sent a diesel injector pump to MI for a rebuild for $12.Seems worth it.I`m sure there`s a good local rebuilder for your Q-Jet.The last one I had done cost $75,just bolt on and go.Prolly gone up a bit,huh?The I/P I`m sending back to the modifier to get back to specs(whatever they are),it`s like secret ingredients in mom`s potato salad.

[timcos]

I took mine to a place in Salt Lake City called Carburetor Exchange. 189 for a q-jet rebuild.

[Longhorn Man]

yeah, the local rebuilders, whom i question, quoted me a "good guy price" of 225.
I think when I get back from San Francisco next week, i might just take one of you up on the offer.

[bartstoy]

I have had pretty good luck with BFIC Fuel Systems in Calif. I know they have rebuild kits for just about anything. They are at www.carbsonly.com
They also do rebuilds, but then again shipping may be an issue.

[msgross]

Cost me about $15 to ship a carb from PA to FL. I need a Holley rebuilt so I may try here...good luck
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My Garage:
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[special-K]

I`ll check K&K Automotive`s latest price in Frederick,MD.Unless the price has changed an awefull lot,it`s nowhere as expensive as what these guys are saying.The do a great job,been using them for 30+ years.They domy startersand alternators,too.They`re my 'benchwork" shop.

[71cadc10]

Andy,
I would be able to do it, if you want to ship to PA. The tuning process once you put it back on the engine would require some of your time though. Setting the air door spring for the secondaries for instance. Not too hard really. I'm rebuilding the one off my '76 caddy 500 right now.

Also if you guys are looking for affordable bushing kits....Summit sells them:
part number JET-201102, price is $67. There are enough bushings included to do 8 carbs.

[stope4]

JHOW, I just looked at that website you posted showing what cars certain numbered carbs came from. Not trying to talk bad about the site, but I think there may be some incomplete information or flat out wrong information there that may mislead people.

[RicksTrucks]

Originally Posted by stope4

JHOW, I just looked at that website you posted showing what cars certain numbered carbs came from. Not trying to talk bad about the site, but I think there may be some incomplete information or flat out wrong information there that may mislead people.

You might want to give an example.