Johnson 1947 po 15

[Anonymous]

What do I use in the lower unit? grease like 105 or 80-90 oil
thanks
chuck86

[lloyd]

I can’t remember now exactly what type seals were in that gearcase, but I am pretty sure that Lubriplate 105 is the best choice.

[george-emmanuel]

The lube you need to use is dependent on the wear/tolerances of the propshaft and the pinion shaft, but mostly the propshaft bearing. If there is significant wear (slop) then you’d need something that won’t rapidly flow out, i.e. “heavier” grease. 105 is pretty thin.

George

[Tubs]

https://www.youtube.com/watch?v=oaaDUyIX2kI

A "Boathouse Repair" is one that done without having tools or the skills to do it properly.

• This reply was modified 6 years ago by Tubs.

[outbdnut2]

In my PO-15, I have used water-resistant grease marketed for boat trailer wheel bearings. Yes that grease was thick -it looked like Lubraplate 105 – may have been the same thing rebranded. I made an adapter so I can pump it in from the cartridge with a grease gun. First I took the lower unit apart and cleaned out all the old gunk and some rust. Who knows what was put in it over the years.
Dave

[David Bartlett]

I use Corn Head grease in my PO with great results.

David Bartlett
Pine Tree Boating Club Chapter

"I don't fully understand everything I know!"

[Author]

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