LouC wrote:
Based on my experience with slipped in salt water boats I'd:
Remove the drive (you probably already did this) and check the gimble bearing, ujoints, bellows etc.
Take a good look in the water intake holes in the lower unit. If you see any sign of barnacles or other crap growing in there, split the upper and lower gear housings and clean out the water intake area. Replace the water tube grommets. Paint the water intake area inside with Trilux-33. When you re-assemble the upper and lower, use OMC gasket sealer AKA Permatex Aviation sealer on the threads of all of the bolts. Check the plastic fitting in the pivot housing (part the drive bolts on to) for cracks, and if you need to replace the driveshaft bellows, replace that little hose too.
On the inside with the engine still out:
Check the joint between the Y pipe and the transom mount for leaks. Replace the gasket between them if you see any sign of leaks. Make sure the bolts holding the inner transom plate are tight.
On the engine: if its a plain steel oil pan, spray it well with Corrosion X HD or Boeshield. Install a new starter, and I'd consider replacing the engine coupler as well. Think of anything on the back of the engine you can't get at when its installed.
If the engine is really new, ADD CLOSED COOLING. Even if its just a half system, it will prolong engine life, add resale, and make winterizing easier. I would not install a new engine without closed cooling even in fresh water.
New exhaust? Good, because that's a major issue in the salt.
Thank you! I have the old engine out already with a new one ready to be put it. I had the drive went over and serviced as well so hopefully it was thorough. And yes the exhaust was horrendous!