Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 480Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 480

BIGFOOT GEAR HOUS ING
6Replace this lubricant "Vent" screw and gasket only and continue filling until excess starts to flow out of second lubricant "Vent" screw hole53922

aVent ScrewTorque to 60 Ib-in(6.8 Nm)FiliDrain ScrewTorque to 60 Ib-in(6.8 Nm)Oil Level Ve nt ScrewTorque to 60 Ib-in (6.8 Nm) 7Replace second lubricant "Vent" screw and gasket
IMPORTANT: Do not lose more than one fluid ounce (30cc) of gear lubricant while reinstallingFILL" screw8Remove lubricant tu be from "Fill" hole; install "Fill" screw and gasket

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