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The carburetor that I took off my '72 10 years ago had a number that started with 17054927 with 3486 also stamped on it, below the first number. Also, there is a 7045628 stamped in a circle (actually the numbers are casted into the carb). I was never able to use either number to determine what it was issued to. As soon as I get to the '9', nothing makes sense. Anyway, rather than rebuild it at that time, I got a remanufactured or rebuilt one. Was rebuilt in 2007. The number on it is 7028212 and spaced after that, DH is stamped. Don't know what the DH means, but I decoded the other number and looks like it is from a '68, Chevrolet, automatic. So it could have come from a Camaro, Nova, Chevelle, El Camino or Corvette? Any way to know if it's from a Corvette? I'm blown away that it's from a '68 though. Someone out there might be looking for this carb....interesting.
From: At my Bar drinking and wrenching in Lafayette Colorado
Your 17054927 is a correct GM Service Replacement carb for a '72 Vette. Casting numbers don't mean anything, since the same casting number was used for multiple different top assembly numbers. It's the "correct" carb for your car.
The 7028212 is a plain Chevy 327 auto trans carb from 1968. If it has been commercially rebuilt (aka, "remanufactured") it has problems.
Thanks Lars. I am sure this was commercially rebuilt, here is a picture of the driver's side of it. Hard for me to say if it works very well or not, although the car runs pretty good seems like. I have thought about having it looked at a time or two. I believe you refurbished my distributor many years ago.
I have a pointer indicating when the last work was done on the carb.
From: At my Bar drinking and wrenching in Lafayette Colorado
Oh, yeah... that's one of the dreaded commercially rebuilt carbs that has been sandblasted and stripped of all coatings. It has then been drilled out, cut, chopped, and mixed with various defective parts from various other carbs to create a complete piece of junk. From what little I can see, the throttle plate is not a 1968 - it's from an early '70s carb, so the carb is a complete "mix-n-match" carb consisting of parts and pieces from various years and makes. Use it as a doorstop or throw it away - it is not salvageable at a reasonable cost.
This is what the driver's side of a "real" 7028212 should look like:
E-mail me for a copy of my "Commercially Rebuilt Carbs" paper if you'd like to see a complete listing of the common issues with those carbs. You won't believe it...
Also note that you have your throttle cable attached to the wrong attach point on the throttle lever, which is preventing you from ever achieving wide open throttle. And why are you running 3 throttle return springs...?
Oh, yeah... that's one of the dreaded commercially rebuilt carbs that has been sandblasted and stripped of all coatings. It has then been drilled out, cut, chopped, and mixed with various defective parts from various other carbs to create a complete piece of junk. From what little I can see, the throttle plate is not a 1968 - it's from an early '70s carb, so the carb is a complete "mix-n-match" carb consisting of parts and pieces from various years and makes. Use it as a doorstop or throw it away - it is not salvageable at a reasonable cost.
This is what the driver's side of a "real" 7028212 should look like:
E-mail me for a copy of my "Commercially Rebuilt Carbs" paper if you'd like to see a complete listing of the common issues with those carbs. You won't believe it...
Also note that you have your throttle cable attached to the wrong attach point on the throttle lever, which is preventing you from ever achieving wide open throttle. And why are you running 3 throttle return springs...?
Interesting...I have been wondering if my car was acting right when I floor it (which is not often, only when I want to see how it acts). Might be the throttle cable then.... As far as the springs go, the carb I replaced musta been hooked up that way, that'd be my guess? Was a few years ago.... so this carb is toast huh. Oh well, and so it goes....
From: At my Bar drinking and wrenching in Lafayette Colorado
Your 17054927 carb is an excellent, correct carb for your car. Rebuild it and use it - the car will run great. There is no need to use that hacked Frankencarb you're running. If you need rebuild assistance, e-maIl me for info.
Lars
The carburetor that I took off my '72 10 years ago had a number that started with 17054927 with 3486 also stamped on it, below the first number. Also, there is a 7045628 stamped in a circle (actually the numbers are casted into the carb). I was never able to use either number to determine what it was issued to. As soon as I get to the '9', nothing makes sense. Anyway, rather than rebuild it at that time, I got a remanufactured or rebuilt one. Was rebuilt in 2007. The number on it is 7028212 and spaced after that, DH is stamped. Don't know what the DH means, but I decoded the other number and looks like it is from a '68, Chevrolet, automatic. So it could have come from a Camaro, Nova, Chevelle, El Camino or Corvette? Any way to know if it's from a Corvette? I'm blown away that it's from a '68 though. Someone out there might be looking for this carb....interesting.
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Just got my Qjet back from Lars and OMG what a difference it made......
Send it to Lars ASAP!!!!!!
mk's78
Carbs, while we're at it
