Learned new technique

I was tinkering with an old pony carb that had a bad booster venturi. I needed to remove the venturi in one piece both to repair it and to measure for a new one to fit a duplicate carb. Main problem was the dissimilar metals together for 80 years had welded them tight. I found a ref on the H.A.M.B. website that described heating to 400degf and cooling the venturi bore with an ice cube. First I tried an old 22AX8 zenith, and then the older 2B8447. Both carbs yielded to the left/ right jabs followed by a light tap & gave up the venturi. [attachment=38043]IMG_20160924_160834358.jpg[/attachment] I wouldn't risk destruction of a carb part just because, but a few years ago a buddy needed a booster venturi for his AX8 (that he broke by tapping on it). I had an AX8 where the entire side of the float bowl had been frozen/ cracked & repaired by brazing. A suitable, but ugly repair. Anyway, I was able to get the need donor part out intact, somehow, but this newer way seems much safer.

Hi Stephen,
thanks for your time and effort to post this great tip for us all to learn from.
Hopefully it will save a few venturi's from destruction in future.
Cheers,
Eddie B.

Here's one tidbit that should be included in our library.

Thanks for posting this Stephen. I was messing recently with a Zenith carby myself and seeing the new one included in the kit I bought, I thought, now how would one ever get that venturi out of there? Now I know (but will run with the old one still in there). I go with the motto, "don't fix what ain't broke!"



Jan