Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 154Get this manual

Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 154

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Piston Pin 1 Measure piston pin diameterOut of specification, replace
PISTON RING END GAP CLEARANCE 1 Measure piston ring end gap clearanceOut of specification, replace
3 Place the piston

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