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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...
gbopp's avatar
gbopp
Explorer
Jul 02, 2018
WD-40 is not penetrating oil.

Buy something like PB Blaster or make your own with Acetone and Automatic Transmission Fluid.

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