The Power of Apple Cider Vinegar for Rust Removal

JDMopar said
So that's the same block that was in post 66 of this thread? Wow!

No that is the second block.in 66

26, 62, 63, 78 are the first block

The second block in 66 was a barn find that I bought sight unseen with 5 stuck pistons. Two I managed to wiggle out. The other 3 were stuck tight untill it soaked for 48 hours. When I pulled it out of the vinegar 1 of the 3 came loose.