The small engine with square head drain bolts respond very well to another clever process. Grab ye a fist full of metric and us box end or sockets about the right size. Chances are you will find one that fits the evil little booger like it was made to. That should easily break it loose without needing heat. I never even try open ends anymore on those just grab the suitable box end and off it comes.
If you do tear up the square portion taking it off by all means (if it's a beast to get at due to obstructions) go buy a replacement at the hardware store. Also do put it back on there using only your fingertips or as I call it "Best Limp Wristed Style" so it doesn't happen again.
If you do tear up the square portion taking it off by all means (if it's a beast to get at due to obstructions) go buy a replacement at the hardware store. Also do put it back on there using only your fingertips or as I call it "Best Limp Wristed Style" so it doesn't happen again.