Mercury Force 9.9, 15HP Outboards Service Manual, Page 116Get this manual
4 Install transfer port cover and gasket Secure transfer port cover and gasket to cylinder with three screws (Al Torque to 90 lbin(10.3 Nm)
5Install upper crankshaft seal
Use sea inslaller (Special Tool oFT-3012)
NO TE: Part number (A) must face outward and sealing lips must face toward inside of cylinder