Can you post a few pictures of the motor?
I can’t think of a small early Johnson having 4 screws on
the rope sheave. I would think that would be a good clue
for someone that is really knowledgeable in the early
Johnsons. Is it a square gas tank motor? How many
cylinders? Is it painted a color or is it silver?
Tubs.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.