2001 Mercury Mariner 50-60HP Factory Service Manual, Page 307Get this manual
CLAMPSWIVEL BRACKETSDRIVE SHAFT HOUSING
Cleaning Oil Sump
1Inspect and clean oil sump thoroughly before reassembly
aOil Sump
Adaptor Plate InspectionCleaning
1Disassemble, clean and inspect adaptor plate components as required2Oil pick-up screen in baffle should be clean and free of damage3Oil pick-up hose must be in good condition and clamped securely at either end4Oil pressure relief valve must be clean and free to open and close without sticking