1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 175Get this manual
Installation 1Lightly coat new O-ring and outside bore of the crankcase head with OMC Triple-Guard greaseInstall the O-ring in groove of the crankcase head2Coat crankshaft splines with OMC Moly LubeDo not allow lubricant to pack at end of splinesLubricant here may prevent seating of driveshaft in crankshaftBe sure that the O-ring is in end of the crankshaftr:J1l 3Check to be sure the water tube washer is positioned on the water tubeLightly apply OMC Triple-Guard grease to upper outside diameter of the water tube4Assemble the powerhead to the exhaust housing, making sure the water tube enters the inner exhaust housingRotate the powerhead slightly back and forth to align the crankshaft and the driveshaft splines 1721 5Install and tighten the four powerhead retaining screws to
a torque of 192-216 inIbs(22-24 Nm)6Apply OMC Nut Lock to the threads of the port and starboard exhaust housing studsPlace the washer on the studsInstall and tighten the two powerhead retaining nuts