[Fred K-OR]

I did heat it with the oxygen-acetylene torch to almost red. Put in water after and still could not get it to unscrew. The venturi came out great with the torch but not this fitting. It looks like the threads above the fitting are a bit rusty. I also shot some penetrating oil in the thing a couple of times and let it set overnight. Still did not come loose. I could drill it but I think I may just try it the way it is. It seems to be open when I shoot air and WD 40 into the holes. If it is not OK I can still try to drill it later. This is only one of my "extra" carbs but I would like to get it working the way it should for a spare.

Thanks for the ideas. I will have to order some new parts for it and after I get them and have it back together, I will give you all an idea how it works.