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DAS26miles's avatar
DAS26miles
Explorer II
Jul 02, 2018

Onan 4K spark arrestor plug won't loosen for removal

Changed my generator oil today and tried to remove the spark arrestor plug on exhaust pipe. Sprayed WD40 and let it sit. Still won't loosen. Square tip is getting deformed from trying. I don't wa...
j-d's avatar
j-d
Explorer II
Jul 07, 2018
bounder39zman wrote:
...as a generator tech who has serviced hundreds of these generators, I don't think I've ever actually gotten any appreciable amount of carbon out of muffler when removing plug...


That experience just made my prospective plan permanent: Leave It Alone!

Thanks!

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