Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 147Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 147

CYLINDER BLOCK AND CRANKCASE
4Remove the bolts that fasten the oil pan to the cylinder block and cylinder head5Break the oil pan sealPry up the oil pan at pry tab and in the open space beneath the oil pan