Problem is I don't know much about the original engine as it was in the car when I bought it. It was built circa 1996 near Sonoma Valley CA. So, it had about 6000 miles on it with the sleeve in it and no known problems. So this is something since the re-build that has happened to it.
Also, no noticable water in the
oil - I pulled the drain plug and let it run for a bit and later drained it all, and no light brown sludge in it.
I think I'm going to ask what it would cost to re-sleeve #2 while the block is apart "just to be sure" if we can't find anything else. Also thinking about putting some block filler in the bottom and some kind of block sealer that finds the cracks.