Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 134Get this manual

Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 134

Cylinder Head Disassembly 1Hold driven gear using tool and remove bolt and

4Remove oil seal and camshaft
flat washerRemove driven gear

a Holder 9183163M

aOil Seal
b Camshaft

2Remove bolts securing rocker arm to cylinder headRemove rocker arm and retainers3Remove retaining bolt55787

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