I am a little new to working on outboards myself, and after changing out my water pump I looked at the torque specs for the lower unit bolts and this is whats in the manual:
5. Apply OMC Gasket Sealing Compound to threads of the gearcase retaining screws. Install the screws and tighten as follows:
- 3/8 in. screws: 26-28 ft. Ibs. (35-38 N·m)
- 7/16 in. screws: 45-50 ft. Ibs. 61-68 N·m)
How do I know which bolts I have. Neither of the heads match either of those sizes. Idk if someone changed bolts over the last 25 years on the unit, but I am uncertain what torque spec I should be using.