1976 Evinrude 40HP outboards Service Manual, Page 56Get this manual
CRANKSHAFT INTERNALO"-RING
Figure 5-34Tightening to Specified Torque CRANKCASE AND CYLINDER aPlace large retaining ring in groove in crankcase using OMC Special Tool (Part No303859)Lightly coat lower main bearing seal housing with OMC Gasket Sealing Adhesive "M" and Slip new "0" ring in grooveInstall seal housing on crankshaft and seat against retaining ringSee Figure 5-10bThe crankcase face is grooved for installation of rubber sealThe new seal should be seated into the grooves and cut somewhat longer than actually necessary to obtain good butt seal at both ends against the crankcase bearingRun fine bead of OMC Adhesive "M" in groove to secure seal in positionWith thumb pressure, force seal to outer edge of grooveAfter cement has set, trim ends with sharp knife, allowing approximately 1 32 inch of the seal to extend against bearings for sufficient butt or terminal sealFigure 5-36Lower Main Bearing Housing and Seal Assembly