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

Piston Pin 1Measure piston pin diameterOut of specification, replace
Piston Rings
PISTON RING SIDE CLEARANCE 1Measure piston ring side clearanceOut of specification, replace piston and or piston rings
Piston Pin Diameter 0.55100.5512 in(13.99614.000 mm) 2Place the piston pin into the connecting rod and check for free playThere should be no noticeable free playTop 2nd

Piston Ring Side Clearance 0.0020.003 in(0.040.08 mm) 0.0010.003 in(0.030.08 mm)

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