1998 Johnson Evinrude "EC" 90, 115 SPL Service Manual, P/N 520209, Page 148Get this manual
8 [] 9Lightly coat outside diameter of new lower crankcase head seal with 0fv'IC Gasket Sealing CompoundUsing 0fv'IC Seal Installer, PI 326567, install the seal in lower crankcase head with extended seal lip facing gearcaseCoat lips of seal with 0fv'IC Triple-Guard grease10Lightly coat two new O-rings with 0fv'IC Triple-Guard grease and install on lower crankcase head[] 11Using 0fv'IC Guide Pin Set, PI 383175, slide crankcase head onto crankshaft
12Apply 0fv'IC Nut Lock to the threads of four new bearing retainer screws and torque to 96-120 inIbs(11-14 Nm)
13Lightly coat the outside diameter of new upper crankcase head seal with 0fv'IC Gasket Sealing CompoundUsing 0fv'IC Seal Installer PI 325453, install the seal in upper crankcase head with lip facing bearingCoat lip of seal with 0fv'IC Triple-Guard grease14Lightly coat two new O-rings with 0fv'IC Triple-Guard grease and install on upper crankcase head