Clean aluminum with acid?
I've used it to dissolve aluminum. Had a failed con rod in a mower engine; remnants stuck to crank. Hydrochloric acid took all the aluminum right off. A drop fell on the case, wiped immediately and left a divot![]()

It was recommended by a friend! I'm not in a huge rush to get the wheels done, since i've come by another project.
I've learned to use the search button on the forum, so i've lots of reading ahead
