Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 160Get this manual
CYLINDER BLOCK AND CRANKCASE
20Reinstall covers and intake manifold to the cylinder headCovers and Intake Manifold Bolt Torque
(a) Thermostat Cover Bolts: 70 Ib-In(8 Nm) (g) Intake Manifold Bolts: 70 Ib-In(8 Nm) (k) Cylinder Head Cover Bolts: 70 Ib-In(8 Nm)