Mercury Mariner 4, 5 102CC Sail 1990 Outboard Service Shop Manual, Page 61Get this manual

Mercury Mariner 4, 5 102CC Sail 1990 Outboard Service Shop Manual, Page 61

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ACAUTION Eye protection must be worn while removing piston rings 'rom piston7 Remove piston rings (a)
Protect end of crankshaft when pressing bearings off8 Remove upper crankshaft ball bearin (a