Exactly what tool is used to extract this threaded fitting? I hope there is some type of socket that engages these slots.

Help!

Hi John,

I used vise grips and heated the manifold with a propane torch. It makes marks, but I polished most of that out and re-plated the part. If I had to do it again, I would try to find some sheet metal that was the thickness of the slot. Maybe cut a 8 inch by 2 inch strip and slide the long edge in the slot. Use heat and, grab the plate like handles.

I tried that sheet metal trick. I found a stout piece that fix snugly in the slot. It just bent the sheet metal!

Since the coefficient of thermal expansion (Cte) of aluminum is around 23 but steel is only around 12, heating it should cause the alum to open more and loosen it's grip. On to the propane!

Heating + vice grips did the trick!

I'd still like to learn the name of that fitting and get the proper tool for my toolbox.