1988 Johnson Evinrude CC 60 thru 75 outboards Service Manual, Page 251Get this manual
Installation 1Place new O-ring on the driveshaftCoat the driveshaft splines with OMC Moly LubeDo not coat top surface of the driveshaft as lubricant here may prevent seating of the driveshaft in the crankshaft 1711 2Check condition of inner exhaust housing sealReplace the
3Slide the gearcase into place making sure that the driveshaft engages the crankshaft and the water tube enters the water pumpBe sure the lower inner exhaust housing does not slip out of position
seal" if necessaryApply Scotch Grip Rubber Adhesive to inside surface of seal and place seal on exhaust housingApply GMC Triple-Guard grease to outer surface of seal