Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 135Get this manual
CYLINDER BLOCK AND CRANKCASE
THERMOSTAT
Valve Opening Temperature Full Open Temperature Valve Lift (Minimum) Pump Type Engine Oil Pressure (Warm Engine): 1300 rpm 5000 rpm Engine Oil Pan Capacity Oil Pump Clearance: Inner Rotor to Outer Rotor "A" Outer Rotor to Body "B" Rotor to Body (Side) "C" Height of Outer Rotor "D" Relief Valve Operating Pressure
122F129F (50C54C) 145F153F (63C67C) 0.12 in(3 mm) Trochoid 4.0 psi (0.03 MPa) Minimum 21.0 psi (0.15 MPa) Minimum 0.95 pt (450 ml) 0.006 in(0.15 mm) or Less 0.0050.008 in(0.120.20 mm) 0.00080.0028 in(0.020.07 mm) 0.236 in(5.99 mm) 3140 psi (2.22.8 kgcm2) 216275 kPa