1985 OMC 65, 100 and 155 HP Models Commercial Service Manual, PN 507450-D, Page 221Get this manual
CO B13 85
1Thoroughly clean mating surfaces of the crankcase and the cylinder block2Apply fine bead of OMC Adhesive "M" in groove to secure the two new seals in position while trimmingInstall the sealsWith thumb pressure, force the seals to outer edge of grooveAfter the OMC Adhesive "M" has set, trim ends with sharp knifeallowing approximately 0,8 mm (0.032") of the seal to extend beyond edge of the crankcase3Apply fine bead of OMC Adhesive "M" to the cylinder block side of the seals4Position the crankcase on the cylinder block, using care to avoid damaging the crankcase heads O-ringsRotate he crankcase heads to their correct position5Using punch and mallet, install the two aper pins