You'll be sorry to put loctite under that screw. Just use some RTV silicone instead.

I've obtained several Saito's used. They had all had the bearing replaced before they came into my possession but needed them replaced again. Most of them had all the seals on both bearings when I got them.

I've seen all kinds of crazy things done to model engines by people. I try to make an evaluation before hand but have been mostly surprised upon dissassembly.

Enjoy,

Jim