1992-2000 Mercury Mariner 105-225HP outboards Factory Service Manual, Page 400Get this manual

1992-2000 Mercury Mariner 105-225HP outboards Factory Service Manual, Page 400

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Crankshaft 1 Inspect crankshaft to drive shaft splines for wear(Replace crankshaft, if necessary 2 Check crankshaft for straightness(Replace as necessary 3 Inspect crankshaft oil seal surfacesSealing