1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 159Get this manual
Position Cylinder Block and Piston Rods, as shownNote locating pins INSTALLING RODS TO CRANKSHAFT Pull rod up to position shownGrease rod, bearing area, with Needle Bearing Assembly Lubricant or 2-4-C wTeflonlay roller bearings out on clean sheet of paper and grease each bearingPlace Bearing Cage in positionPlace Bearings in cage
LOWER (Gear) END
FLYWHEEL END (Top)
aLocating Pins
Place crankshaft into cylinder block; align and seat top and center main bearings so that locating pins on block mate with holes in each bearing race20045