Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 172Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 172

CYLINDER BLOCK AND CRANKCASE
22Install new oil seal in the oil pan using suitable mandrel
aOil Seal 23Install the oil panTorque bolts following torque sequence