1985 OMC 65, 100 and 155 HP Models Commercial Service Manual, PN 507450-D, Page 240Get this manual
9Tighten the upper crankcase head screws to torque of 14-16 Nm (10-12 ftIbs10Tighten the lower crankcase head screws to torque of 8-11 Nm (72-96 inIbs 11Tighten the bearing retainer plate screws to torque of 11 -14 Nm (8-10 ftIbs12Seat the six water deflectors
in the cylinder block
13I nstall cylinder heads, using new gaskets coated lightly with OMC Gasket Sealing Compound(Do not use sealer if gasket is so marked Follow instructions printed on the gasketTighten cylinder screws to torque of 24-27 Nm (18-20 ft Ibs.lfollowing the sequence shown