Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 183Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 183

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CYLINDER HEAD

1.45671.4577 in(37.00037.025 mm)

ValveNalve SeatNalve Guides: Valve Clearance (cold) Intake Exhaust Valve Dimensions: "A" Head Diameter Intake Exhaust "B" Face