Stripped & seized oil drain plug help!
My garage sale Snapper V212 mower (which has a 1987 Briggs Max series 4hp I/C engine) has a oil drain plug (square shoulder "protruding", not recessed type) that is stuck in place, and the 4 points of the plug are slightly rounded from what appears to be vise grip slippage. The casting design of this deck makes it difficult to use a crescent wrench,which wouldn't work anyway due to the strippage, and a standard socket slips. The oil dipstick says drain/fill, but any ideas on how to get that plug out of the bottom of the engine?? Maybe a special 4-point socket?