cleaning up the slant six head
I knew a bloke who soaked his 1928 Chev 4 cast iron exhaust manifold in Molasses....it was for a fair while, and when he took it out, it crumbed in his hands.
Yes, I have put cast iron in vinegar for prolonged periods, without any "softening". There's a sound scientific explanation for why that is.
Yes, vinegar is a strong enough acid to attack zinc and cadmiumthat's not in question here, but if it were, there's a scientific explanation for why that is, too.
Yes, I'm looking at the same pictures you arewhere we differ is in what we think we see.
Me, I'll be content with the explanation of events once it has fewer gaps and soft spots than the alleged ones in the head's machined surface. I don't put much weight on shaky hypotheses, but others' opinions may vary. I think I'll just go back into lurk mode and watch how many dollars, days, and cylinder heads are consumed in the hunt for a way out of paying a reasonable hot-tank charge.
I knew a bloke who soaked his 1928 Chev 4 cast iron exhaust manifold in Molasses....it was for a fair while, and when he took it out, it crumbed in his hands.
