Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 254Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 254

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CYLINDER LOCKCRANKCASE
aUpper Oil Seal Lower Oil Seal

IMPORTANT: Assemble connecting rod bolts, caps, rods, and pistons in their original locations
90-857046 AUGUST 1998

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