Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 226Get this manual

Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 226

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Oil Pump Removal 1 Remove oil filter and pump from manifoldIMPORTANT: DO NOT disassemble the oil pumpThe pump is not serviceable
d Filter

eO-RingDown Relief Ball

90-854