1998 Mercury 9.9/15HP 4-stroke outboards factory service manual, Page 6Get this manual
SPECIFICATIONS
Pump Type Engine Oil Pressure Oil Pressure Switch Oil Pump: Outer Rotor to Housing "a" Inner Rotor to Outer Rotor "b" Rotor to Housing "c" Relief Valve Opening Pressure
Trochoid 30-40 psi at 3000 rpm (Warm Engine) Below 2.5 psi (17 kPa) Continuity 0.00240.0043 in(0.060.11 mm) 0.00080.0059 in(0.020.15 mm) 0.0080.003 in(0.020.07 mm) 55-64 psi (3.88-4.50 Kgcm2) 388-450 kPa
LUBRICATION SYSTEM
Transom Height: Short Shaft Long Shaft Steering Pivot Range Tilt Pin Positions Full Tilt Up Angle Allowable Transom Thickness Gear Ratio Gearcase Capacity Lubricant Type Forward Gear Number of Teeth Pinion Gear Number of Teeth Pinion Height Forward Gear Backlash Reverse Gear Backlash Water Pressure Idle WOT Gear Ratio Gearcase Capacity Lubricant Type Forward Gear Number of Teeth Pinion Gear Number of Teeth Pinion Height Forward Gear Backlash Water Pressure (With Thermostat) Idle WOT 15 in(38 cm) 20 in(51 cm) 70Shallow Water 66 2-38 in(60.3 mm) 2.0:1 6.8 fl oz (200 mL) Quicksilver Gear Lube-Premium Blend 26 SpiralBevel 13 SpiralBevel Floating No Adjustment No Adjustment 12 1-12 psi 950 rpm 5-7 psi 5000 rpm 2.42:1 7.8 fl oz (230 mL) Quicksilver Gear Lube-Premium Blend 29 SpiralBevel 12 SpiralBevel 0.025 in(0.64 mm) No Adjustmentpsi 950 rpmpsi 5000 rpm