Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 444Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 444

BIGFOOT GEAR HOUSING
6Replace bearing if it is rusted or does not roll freely; use punch and hammer to remove bearing

a Bearing 7Replace forward gear bearing and race if either are rusted or damaged; or if bearing does not roll freelyRemove bearing from gear using Universal Puller Plate (9137241) and mandrelTo remove race, refer to "Forward Gear Bearing Race ," following