Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 247Get this manual
Table of Contents Page Specifications 6-1 Special Tools 62 Gearhousing (Driveshaft) 6-4 Gearhousing (Propeller Shaft) 6-6 General Service Recommendations 6-8 Bearings 68 Seals 6-8 Draining and Inspecting Gear Lubricant 6-9 Propeller Removal 6-9 Gear Housing Removal 6-10 Water Pump Seals 6-14 Inspection 6-15 Upper Drive Shaft Bearing 6-15 Pinion Gear Bearing 6-15 Pinion Gear 6-15 Forward Gear 6-16 Shift Shaft 6-17 Propeller Shaft Disassembly 6-18 Propeller Shaft and Carrier Inspection 6-18 Clutch Dog 6-18 Cam Follower Reverse Gear 6- 19 Reverse Gear Bearing 6-19 Bearing Carrier 6-20 Needle Bearing 6-20 Gear Housing Reassembly 6-21 Shift Shaft Assembly 6-22 Pinion Bearing Race 6-22 Forward Gear 6-23 Pinion GearDrive Shaft Assembly 6-23 Propeller Shaft 624 Bearing Carrier 6-24 Water Pump 6-25 Gear Housing Pressure Test 6-26 Gear Housing Installation 6-26 Filling Gear Housing with Lubricant 6-26 Installing Gear Housing to Drive Shaft Housing 6-27 Trim Tab Adjustment and Replacement 6-28 Propeller Installation 6-28