Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 218Get this manual
Gear Housing Specifications (Standard Rotation) SPECIAL TOOLS REQUIRED for DISASSEMBLY an REASSEMBLY STANDARD ROTATION
ForwardReverse Gear Backlash and Pinion Depth
Pinion Oepth 0.025 in(0.635mm) WithTooI91 -12349A2 Using Disc #2 and Flat #Forward Gear Backl ash
Tool Description
Belleville Washer Needle Bearing Driver Oil Seat Driver Needle Bearing Driver Driver Cup Universal Puller Plate Driveshaft Bearing Wrench Backlash Indicator Rod Drive Shaft Nut Wrench Bearing Carrier Retainer Wrench Torque Wrench (inlb Puller Bolt Dial Indicator Holding Toot Oil Seal Driver Water Pump Alignment Pins Pinion Gear Shimming Tool Bearing Preload Tool Bearing Removal and Installation Tool
1.64:1 and 1.75:1 Gear Ratio 0.017 in to 0.028 in(0.431mm to 0.711 mm) Pointer on line mark #1 Reverse Gea Backlash 0.040 into 0.060 in(1.0mm to 1.52mm) Lubricant Capacity 2811oz(0.828 liter) NOTE: Before filling gear case, apply 10-15 PSI of air pressure at th VENT holePressure should not drop for 15 seconds while alternately applying 2-3 pound force to the top of the shift haft in the fore and aft directionWater Pressure ldle 0-4psi Poppet Valve Opening 6- 126-34 psi W.O.Tpsi Note: The water pump assembly is LOW pressure ,