G'Day,    I asked this question awhile back and didn't get a clear answer.   I believe the radiator cloisonnes are a press fit......male part of cloisonne pressed into female part of radiator shell.   I'm looking for a way of removing the cloisonne without damaging it.  I've considered applying generous amounts of penetrating oil and tapping it out with a similar sized socket.  Has anyone come up with a better way...?...   I would like to find a way of pressing it out, but can't currently formulate a plan to do that.  Thanks for Your time and attention......Joe......