I think most people run them like this until those issues show up and then rebuild their happily unstuck engine...
Maybe...its really hard to say. Usually the crank, cam, bearings etc. are heavily coated with a thick layer of black sludge oily build up. Mine sat since 1972 and was stuck when I got it. After getting it unstuck inspection showed that the cylinder walls were the only surface that took the abuse...No rust in the bottom end at all.
