Forum Discussion
pnichols
Aug 08, 2015Explorer II
tpi wrote:
Cylinder head temps of these engines should not be approaching anywhere near 450-500 degrees F- let alone the discharge air from the cooling ducts. If the engine was running that hot- wait- it wouldn't be running. But one can measure the discharge temp in an effort to be sure.
The only thing I can think of would be some kind of exhaust malfunction where hot exhaust was directed at ground, or exhaust piping was too close to ground. Armed with a thermometer of appropriate range the OP could quickly confirm whether there is a problem here.
Finally .... a voice of reason!
That echoes my thoughts when I first read the OP. Something may be wrong with their generator.
The cooling air from my built-in Onan is in no way is hot enough to start a grass fire - and we do use it in hot weather for A/C when drycamping. The exhaust from it is pointed horizontally to the side well above ground level and is not very hot, either. The steel case of the muffler is what is hot, and it's well up inside the generator's factory enclosure where it belongs.
If push comes to shove, the OP can do as I suggested earlier - throw a piece of thick carpeiting (brought along for that purpose) under the generator where the cooling air exits.
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