Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 388Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 388

NONBIGFOOT GEAR HOUSING
2Remove cover, washer (above impeller), impeller, key and washer (below impeller)3Remove cover gasket, base plate and base gasket