NEWSFLASH !!!!! This 2-part Tech Tip is sponsored by the nice folks at The Carburetor Shop!The venerable Rochester B-Series carburetor. Thousands of them still soldier on atop Stovebolt 6's around the World. Are they unrebuildable?? Heck NO! Jon "Jon G" Goodman has put a lot of time and work into this 2-part Tech Tip that will make you a Rochester Rebuilding pro in no time! A must read/must have for any 'Bolter with a B-Series Rochester!
Thanks Jon!!!Part 1 - Common Issues covers a lot of ground (12 pages -
give it time to download 
) with a helpful schematic on the last page.
Part 2 - Casting Fixes (five pages) looks specifically at repairing warped Air Horn and Fuel Bowl castings, with helpful details and images.
The third attachment below is the actual Rochester B-Series manual.
As with the other tips in the Tech Tip Forums, if you have any questions, comments or feedback about this Tech Tip, please feel free to post HERE in the Engine Shop Forum.