Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 231Get this manual
6Once anode plate is removed, remove nut and washer from inside of anode plate cavity7Remove bolls and washers from bottom middle of anti-cavitation plate aFront Mounting Bolt (or Locknut) and Washer Side Mounting Lockn uts and Washers (Two Each Side)Speedometer Hose
DRAINING AND INSPECTING GEAR HOUSING LUBRICANT
aLockn ut an Wash er (Inside Anode Plate Cavity) Botts and Washer