Re: 1935 Johnson Aero built 300 fuel mixture

[Tubs]

The oils purpose is to keep the moving parts from touching.
It doesn’t know what year they were made. That film of oil
between the rings and the cylinder or the crankshaft and
bearings cant be increased by adding any more oil.
Once you have enough there is no benefit to adding more.
I always want to make sure there is enough so I mix 3 oz.
per gallon.That’s about 42 to 1. Still your not going enjoy
running a motor a if you think you could be harming it
so run enough so you feel comfortable.

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