1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 154Get this manual

1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 154

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IMPORTANT: There are two types of pistonrod assemblies available for the cylinder powerheads: Design Bottom guided (centered in bore by crankshaft) Design Top guided (centered in bore by piston) DESIG