Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 151Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 151

CYLINDER BLOCK AND CRANKCASE
12Remove piston assembly from the crankshaft
aConnecting RodCapBolt (2)Piston PinClip (2)Piston

13Press the crankshaft out of the cylinder blockaPressFlywheel NutThread Onto End of CrankshaftCrankshaftWasher