If I were to remove the condensor, I would also remove all traces of the AC system. It really is not needed in this part of the country (Oregon)and when we do need cooling inside the coach, I can always use the roof air. Removing the compressor would decrease the load on the engine some, too. We don't travel much...this coach is a small 23' class A (Itasca) and used mainly for a few days camping (at a time) in the mountains and along the Oregon/Washington coast. Resale value isn't a consideration either. Camping (if you can call it that) in the PNW is our thing and traveling around the country, where temperature variations can swing wildly, is not. It is not worth repairing the in-dash AC for our purposes.
We recently (last week) lost our fan belt (the one that drives the fan, alternator and AIR pump. The engine did not overheat during the 100 mile return trip without the belt. We ran the generator to help keep the batteries up during the return trip and kept all batteries on line to the engine to avoid battery failure until we got home. We were camping on the coast where it was cool and driving into the wind until we started East into the Coast Range of mountains. It was in the low 90's at home, but still the engine temp gauge read normal on our arrival. I believe the fan clutch operates as it should and the cooling system is also operational in the normal range. The noise we hear when the fan clutch is engaged is fan blades beating the air just as all high speed fan blades do. Very similar to an airplane propeller only not as loud. My "Title" for this thread is misleading....it is not the clutch making the noise, it is the blades turning at a high RPM with the clutch engaged.
The most obvious answer seems to be reducing the load on the engine and/or increasing air flow through the radiator. Removing the in-dash AC system would help in this regard, on both fronts, and, perhaps, adding two electrics in front of the radiator. Maybe, just maybe, this would keep the need for the clutch fan to engage at a minimum. I agree with those that say modifying the clutch fan itself would probably not be the best solution, unless there is a proven replacement available. I can't believe we're the only ones with a loud engine cooling fan, so I'm just wondering what, if anything, others have done to "fix" it. We live near the Cascade Mountains and spend a lot of time at our favorite mountain lakes. Climbing that 7% grade on a warm day behind a slow truck means a loud roar all the way to the top and beyond until things cool down.