My favorite Quadrajet rebuilding tools:

[Greasy Harley]

How to rebuild and modify Rochester Carburetors, by Cliff Ruggles
Rochester Carburetors, by Doug Roe
Quadra-Jet technical papers, by Lars Grimsrud
A home made carburetor stand and one of probably 20 Barker Unwarping tools in the world.

I do love the sound of a good running Quadra-Jet.

[Pav8427]

Trying to respond with a photo from Iphone. Jpeg not allowed. Whats my work around options?

Thanks. Doug

[ramiroelliot]

Trying to respond with a photo from Iphone. Jpeg not allowed. Whats my work around options?

Thanks. Doug

You can post via 3rd party image sites (eg: https://postimg.cc)

[Pav8427]

Made this up as a solution to a warped numbers original Quad for my H/O. Also a jig I made up for tuning secondary hangers.

[Frank400]

Now those are super cool tools !  Is this something you would consider selling ?

[Burd]

You can post via 3rd party image sites (eg: https://postimg.cc)

Joes should work, it works for me now, Cliff added it.

[Pav8427]

The unwarping jig is actually a second revised edition of the one I built on the fly.
I did develop a program to CNC them and offer up to whoever might want one.
If there is enough interest I would do a small run of them. Could offer with hardware to unwarp and even convert to a nice heavy work stand.
Secondary hanger jig was on the fly, but could be whipped up fairly easy and a small run could be done if enough interest.

[77cruiser]

I'd take a hanger jig if you get enough interest.

[Pav8427]

Before and after shots of the last core to be run through the process.

[Photokinetics]

How do you unwarp the air horn or main body or base plate of a quadrajet carburetor?

[Kenth]

The problem is that the zinc casting in the float housing gets compressed if the screws at the front are tightened too much.
How do you stretch the zinc casting with this tool?

[Pav8427]

For the airhorn,it is just a bolt down with a few well place Kant Twist clamps.
The main body is actually sandwitched between 2 plates.
Most I have torn down the throttle plates are flat.
I use an oven and heat to 250* and let cool over night.
Most airhorns still require some flat filing at the front bolt holes.

[Kenth]

So it's a matter of squeezing the float housing together so that the all over height gets the same as the previously squeezed front corners?

[Shiny]

What is the specific alloy used for the parts that warp easily (ie airhorn)?  Is it a zinc-based or aluminum-based alloy?  I expect zinc alloys would creep faster at low temperatures.  250 F overnight sounds like the material moves pretty easily!

[Pav8427]

Yes just pulling the two surgaces parallel with help of heat.
The 250* is only initial heating of jig/carb then letting cool over night in the oven.
Actually the most time involved in the whole process.