1988 Retired Air Force Ambulance with dedicated Mitsubishi Diesel engine turning two R-12 air conditioner compressors.... Ducted air tunnels down each side. One compressor is dedicated to each side.
(Engine is 35 hp running 3600 rpm)
Problem: one compressor locked up and whole unit is low on freon and cycling the driver's side a/c compressor/condenser on and off. Passenger side is not cycling at all because it's compressor has no belt to engine pulley. (Fortunately, it's the outboard compressor that's gone bad, not the inboard)
1) least desirable option: replace the locked up compressor myself, have an hvac tech vacuum system down and refill with R-12 ( ID plate shows 12 pound system) (hearing that R-12 is hitting around $1200 for 30# can)
2) less desirable option: replace compressor, vacuum down, and refill with "Freeze 12" or R-134a (I keep hearing from ASE Certified Auto Tech instructor that this will not produce optimal results)
3) most favorable option: pull both A/C compressors, get on Craigslist and find a generator with bad motor (found 2 locally for $100 & $50) I could actually mount 2 generators to this configuration)
Pull the generator head, attach a v-belt pulley to shaft, build the brackets to mount the generator to engine. (Or Direct shaft coupling)
Buy 2 rooftop mount Motorhome 13,500 to 15,000 A/C units, mount them in roof and use the abandoned freon lines as conduit to wire the units to generator or sub panel breaker box. (Which will in turn connect to RV Campsites when generator is off)
4) less favorable option: same as Option 3 but use 2 mini-split units but gain heating ability.
Need some help with Pros & Cons... I'm concerned with chasing the R-12 freon rabbit this time and having to chase it again when the other compressor gives up.