Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 154Get this manual
74 .Attach fuel pump inlet hose connector to cover with boltSecu re output hose oil pump with stastrap 75Attach oil tank to power head with boltsApply LOCT ITE GRADEA" to bolt threads Torque boits to 150 lbin (16.9 Nm)