1995 Johnson/Evinrude Outboards 9.9, 15 four-stroke Service Manual, Page 120Get this manual
5To install oil control ring assembly, place segmented ring in bottom groove firstInsert the end of first scraper ring under segmented ring and work around until installation is completeInsert second scraper ring, above segmented ring, in the same fashion
6Angle the scraper ring end gaps and segmented ring gap 45 from center points of wrist pin to ensure proper sealing
7Install the middle ring (thick) in the middle ring groove with the stamping facing up (white paint to right side of gap)Install the top ring (thin) in the top ring groove with the stamping facing up (orange paint to right side of gap)Angle the end gaps of the rings, opposite each other, 90 from center point of wrist pin to ensure proper sealingUse this illustration for proper piston ring placement
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Scraper Ring Gaps Middle Compression Ring Gap Segmented Ring Gap Top Compression Ring Gap