124 Evap flushing
I'm fixin' to flush the evaporator on my 124 before refilling with R12. I am looking for hints or ideas as to removal of the expansion valve, installation of a new expansion valve and not making a mess with flush all over the car. Will a hose on the outlet of the evap take care of it, or is there more?
I am considering the flush gun concept that takes liquid solvent and input from a shop air compressor and blows it thru the system.