Cliff's Quadrajet Parts and Rebuild Kits

General Category => Quadrajet Carb Talk and Tips => Topic started by: the13bats on January 03, 2019, 01:27:19 PM

Title: info on qjet 17084226
Post by: the13bats on January 03, 2019, 01:27:19 PM

A kind soul gave me this carb, they bought it from some outfit called national carburetor,
They said it ran great on their corvette but they went to fuel injection,
So im curious would it be good for my mild 454 thats just a cruiser?
Also concerned it looks modded or hacked at the adjustment screws and something appears blocked with epoxy,
Thanks for any help,

 

Title: Re: info on qjet 17084226
Post by: Cliff Ruggles on January 04, 2019, 02:28:50 AM

IF it ran great why would they go to "fuel injection"?

I've seen a lot of carbs from that source and suspect that's why they gave up on it and went another direction........Cliff

Title: Re: info on qjet 17084226
Post by: the13bats on January 04, 2019, 05:27:20 AM

In this case i believe the guy wanted to step up to fi as an upgrade perhaps a little bragging rights, lots of chest thumping in the c3 vette world,
So your advice is trash this carb?

Title: Re: info on qjet 17084226
Post by: 429bbf on January 04, 2019, 08:03:54 PM

you don't really need to trash the carb but it may take a lot of work to get it right . they like to plug off the bypass air and a lot of other things that take time to fix . most are fixable just a lot of monkeying around . take it apart and tell us what you find . fwiw.

Title: Re: info on qjet 17084226
Post by: Cliff Ruggles on January 05, 2019, 01:41:41 AM

Agreed, take it apart and see what they've done to it.  Right off you'll find the power piston hanger arms bent and metering rods uneven in the jets.  Cheap parts used, and "generic" calibration as well.

I get those sent here all the time, matter of fact have one on the bench right now that looks fantastic, but it is JUNK and we gave up on it.  They drilled out the threads where the fuel inlet seat screws in and pressed in some POS assembly that woln't let enough fuel in to keep the bowl full.......Cliff

Title: Re: info on qjet 17084226
Post by: the13bats on January 06, 2019, 07:58:16 AM

Thanks,
Not what i really wanted to hear but what i feared
 i feel it would be better for me to start with a known good one from a good source than mess with one that likely has issues.

Title: Re: info on qjet 17084226
Post by: 77cruiser on January 06, 2019, 11:47:31 AM

Take it apart & measure stuff before you throw it. Might be OK to work with.