I pulled the lower unit yesterday (no broken bolts this time!) and found a couple of cracks. I believe these to be in non-critical areas and repairable with some J-B Weld. What do you guys think?
Lower unit removed
Small crack in housing
Same crack, different view
Crack under the impeller plate
I might add that only about a teaspoon of water came out with the lower unit oil when I drained it. It wasn't milky.