Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 157Get this manual

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CYLINDER BLOCK AND CRANKCASE

13116 in(20mm)

aTop RingChromeSecond RingTaperedUpper Side RailOil Ring Expa nderLower Side RailInstall Rings With Marking Side Facing UpEnd GapE

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