dieselfitter
ArboristSite Guru
20kw? It that a 4.154 or 4.154/200 series? If you don't know, post some pics of the engine, especially the injection pump area.I've had little success in more appropriate RV forums, so thought I'd try here. I have a 20kW Kohler diesel generator on my RV with remote radiator (in lower bay next to generator). The coolant will get to 240 (according to gauge) on really hot days and when I go back to turn it off, its boiling out of the overflow tube on the plastic reservoir. There is a black reservoir on the unit itself with a 16lb cap, new thermostat. Now it may be that I'm not getting enough airflow across the radiator coils (1HP squirrel cage blowing hard), but I am looking for other reasons that the coolant in that plastic reservoir would be boiling repeatedly and the generator itself seems fine and not shutting down from its overtemp control.