Originally Posted by rrodda1
Of course, I can easily spray the read side of radiator, but does that do any good?
Answer is NOT MUCH.
Most if the dirt and debris is "filtered out" on the front of the CAC. If you used enough water pressure to go through the radiator, the air gap and then the CAC with enough force to blow stuff off the front of the CAC, you would likely bend radiator fins.
I know access from the front/top is limited, but that is where you need to clean.
Best degreaser that will not harm aluminum is Simple Green EXTREME. Speced for degreasing aluminum aircraft.
That and a regular hose with garden nozzle and a pair of old clothes is what you need for the job. And desire to stand on your head while doing it is desirable.