Forum Discussion
Grit_dog
May 24, 2023Navigator
Off the cuff, looks like you have the airflow for cooling pretty well designed (and you confirmed it’s not getting real hot inside).
That said, the mufflers on, well, any engine, but on small engines that run full throttle get VERY hot. Ever see it at night? My home generator (similar to yours) and big mowers will get glowing red hot under sustained load.
Could be some localized heat maybe causing a vapor lock but it wouldn’t restart instantly I think.
Exhaust back pressure could be an issue too. Maybe test the absolute shortest straight run of exhaust pipe to get it clear of the enclosure and see if that helps.
IMO it’s likely heat or backpressure if it runs fine “naked.”
That said, the mufflers on, well, any engine, but on small engines that run full throttle get VERY hot. Ever see it at night? My home generator (similar to yours) and big mowers will get glowing red hot under sustained load.
Could be some localized heat maybe causing a vapor lock but it wouldn’t restart instantly I think.
Exhaust back pressure could be an issue too. Maybe test the absolute shortest straight run of exhaust pipe to get it clear of the enclosure and see if that helps.
IMO it’s likely heat or backpressure if it runs fine “naked.”
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