2001 Mercury Mariner 50-60HP Factory Service Manual, Page 288Get this manual
LUBRICATION
Oil Pump Installation
1Place O-ring seals on the oil pumpLubricate the O-rings with oil2Prime the oil pump by pouring approximately fl oz (30 ml) of engine oil into the oil pump body
aO-Ring Seals30 ml of Engine Oil IMPORTANT: When the oil pump sealing surface gets close to the surface of the cylinder head, do not twistturn oil pump from side to sideThe sharp edges on the cylinder head will cut the sealing o-rings3Align oil pump shaft with the camshaft and install the oil pump4Fasten with boltsTighten bolts to the specified torque