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My father in law passed and my wife wanted his 69 C3. I didn't argue. Noticed carb was leaking fuel everywhere so I figured I would start there. Doing my first rebuild and got a kit. I noticed the spot next to fuel inlet in photo has some JBweld that is cracking and old. Any suggestions on how to repair this or if there is a part that creates a better seal?
Welcome to the forum! Sorry for your loss, but that’s a beautiful car to inherit.
I might be wrong, but I believe that plug on the front of the float bowl is there so the fuel inlet can be drilled. It’s fairly uncommon for them to be leaking, it’s more likely that it’s leaking from the fuel inlet fitting itself.
The carburetor does have Phillips headed screws in the air horn rather than the original flat headed ones, as well as a float bowl vent block installed. This is usually indicative of a commercial rebuild, which might mean there’s other setup issues with the carb that would prevent it from functioning correctly. Does it have a sticker on the back side near the throttle linkages?
Last edited by Piersonpie; Nov 7, 2024 at 10:24 AM.
Welcome to the forum! Sorry for your loss, but that’s a beautiful car to inherit.
I might be wrong, but I believe that plug on the front of the float bowl is there so the fuel inlet can be drilled. It’s fairly uncommon for them to be leaking, it’s more likely that it’s leaking from the fuel inlet fitting itself.
The carburetor does have Phillips headed screws in the air horn rather than the original flat headed ones, as well as a float bowl vent tube restrictior installed. This is usually indicative of a commercial rebuild, which might mean there’s other setup issues with the carb that would prevent it from functioning correctly. Does it have a sticker on the back side near the throttle linkages?
Thanks for the reply. I did notice that as well with the screws. Those screws were also pretty loose and the gaskets were saturated in fuel outside of the carb. I think it was leaking from all over.
more pics of car! looks great and you are doing the right thing.
we are fortunate to have Lars on this forum. He rebuilt mine and couldn't be happier.
here is a link to one that may be similar. https://www.corvetteforum.com/forums...from-lars.html
i would get his opinion with good pics all around the carb..
From: At my Bar drinking and wrenching in Lafayette Colorado
Be aware that the carb you are trying to work with is a hacked, molested, modified, commercially rebuilt carb. It is bound to have a massive amount of issues and problems that cannot be corrected with a "carb kit," and it's not even a Chevy carb. For example, the airhorn (the entire "top of the carb") is off of a 1970 Pontiac. I can't tell what the throttle plate is off of, but it's not a Chevy throttle plate. The float bowl is a Cadillac float bowl. The entire choke pulloff bracket is some home made part that does not belong on a '69 Chevy carb. For a list of just a few of the problems that carb will have, send me an e-mail request for by "Commercially Rebuilt Q-Jet Problems."
Here is what a '69 Vette carb looks like - compare it to what you have. I will sincerely advise you to take that carb and use it to practice your hook shots into the garage trash can. Then, start a quest for a good, used, unmolested '69 carb in rebuildable condition.
From: At my Bar drinking and wrenching in Lafayette Colorado
If you want some info and tips on what to look for when shopping for a good builder core, just send me an e-mail for my used Q-Jet guide. The core you have is completely unusable and is not rebuildable. Also, if you bought a "kit," either off the internet or from one of the popular retail outlets, the kit is junk and does not have a usable accelerator pump in it.
Lars
Welcome to the C3 hobby. I think it’s great that you have taken over your father in law’s Corvette. I gifted my 73 convertible to my son in law, and what’s great is that I get to see her when visiting them. Seems from your initial post that you will be doing repair work on the car. Look on eBay for 1968 AIM (assembly installation manual) and 1968 Chevrolet Service Manual, they are not very expensive and you will automatically have tons of information on hand. You will be wise to follow our Friend Lars advice on your carburetor. If you spend 20 minutes reading the Forum, you will see all the posts concerning Carburetors, unfortunately it’s Never Ending. Find a suitable Quadrajet on eBay (after Lars give you his approval), then simply send it to him for restoration, or you could waste good money trying to solve the never ending problems caused from junk Chinese or crappy carburetor rebuilders. The Choice is Yours.
First Quadrajet Rebuild Question
