Using ATF to clean engine?

[lolsteve]

water would be condensation i expect the car was cold to start with?

The engine was up to temp, the fans had come on a couple of times to cool it down
Engine got quite tappy whilst running but then it was on a 50/50 mix of oil and atf

After draining the oil and refilling we started the car back up to get the fresh stuff up into the tappets etc. There didn't seem to be any oil spitting out the back after wards unlike before dropping the oil. However will have to check again when engine is cold as the engine was hot but the oil was cold when we ran it.

Stop smoke didn't help either it just made the quite very tappy from start up, guessing because it just thickens the oil up