Guys,
On the 96 36' Monterey, removing the floor of the closet ( carpet staples and a dozen screws) exposes everything that remains... Awesome access to belts, hoses, the Charge air cooler/ intercooler or whatever ya wanna call it, thermostat housing, fan, shaft, idlers is almost completely unrestricted.
Per the CAT RV hotline, I have replaced the thermostat before the old one caused problems, and now am flushing the coolant multiple times to add Cat ELC.
Tomorrow we spray the radiator down with simple green and rinse out the cooling fins....
Once more, the engine is hiding under the closet, but 20 minutes with a screw gun reveals it just fine!