I think it was 38AC that suggested the generic spray electrical varnish to me. A very helpful tip, saved me a bunch of time and money.
Nice looking crankcase, bet you burned some grinding stones on that!
Yes, you mentioned it Bruce, and I think I read it in 38's build thread. Spraying was much easier and quicker than brushing.
Honestly, I spent about 15 minutes de-flashing the breather opening, and just a bit on the large opening. Most all of what you see in
the pic hasn't been touched with a grinder. And, yes, it did cut like butter with a Carbide burr, which is a little discerning, as it seems like real soft iron. I suppose there's not much nickle in it.