looks like blow by but tech says its steam

[Waterloo]

Are you getting excess pressure in the coolant? Is it pushing coolant past the radiator cap? If you have a NAPA near by, run up there and get an Engine Block Test Kit, runs around $50, most all NAPA stores stock them. Run the test, it may take a few minutes, make sure the engine is up to temp, get the temp up there before testing.