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Some progress on the 1966 Bell Boy/Johnson 60hp - coming along nicely. Having fun

The lower unit is sealed.-----There is no way that fogging oil gets into the gearcase.
I figured that. But from what I’m reading, if water is in lower unit, it appears as milky coloration.

Another thought was that it’s been long enough since the engine was ran that the water and oil have re-separated.
 
The lower unit is sealed.-----There is no way that fogging oil gets into the gearcase.
I’ll be moving onto the lower unit restoration here pretty soon. I plan to replace the impeller regardless of how it looks.

When viewing the exploded parts diagram for the lower unit/water pump, I see there are many “seals” “gaskets” and “O-rings”.

Are there certain parts I should absolutely replace no matter how they appear, or should I first disassemble and inspect before spending the money.

Link to parts diagram
 
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