Is this the six banger hercules that you did that museum derusting trickon?
Yeah. I can't emphasize enough how well that derusting technique works, and it's cheap-cheap-cheap. But you do have to have a way to submerge the rusty surface. I've got some rust spots on the hood of the 190D that I'm going to try building clay dams for so that I can puddle the juice over them.
-- Jim