Why is sand blasting bad for aluminum? This is something I didn’t know.
Awhile ago, I had an ’88 15 Johnson power head that was really badly corroded from a mouse nest. I made block off plates out of 3/4″ King Starboard, the white plastic material , for the carb inlet, base gasket area, etc., to keep out the sand. It is easy to machine and you then get to keep it for the next time…..
Long live American manufacturing!
