2001 Mercury Mariner 50-60HP Factory Service Manual, Page 418Get this manual
NON-BIGFOOT GEAR HOUSING
Disassembly
Water Pump
NOTE: If water tube seal stayed on water tube (inside of drive shaft housing) when gear housing was removed, pull water tube seal from water tube1Replace water tube seal, if damaged2Remove bolts, washers, and isolators (Design 1)3Remove cover
NOTE: Isolators from forward screws are shorter than the other isolatorsRetain these for proper reassembly (Design 1)NOTE: Design included isolators on the water pump housing boltsNewer design versions did not use these isolators
aWater Tube SealBolts (6) M6x30Washers (6)Isolators (6) If so equippedCover