Hello Jeff,
Some of the early casting and materials are almost a mystery for sure. Even the quality of aluminum castings would or could be suspect as quality control was not up to our modern standards as or 2020. Keep up the good work.
Regards,
Alan
Magneto Question
Re: Magneto Question
I have 2 otherwise identical carburetors (Winfields), one was an earlier Aluminum casting which is (as far as I can tell) bulletoroof, it's twin (which is sized for a larger engine) is cast tin-zinc alloy (eg "pot metal") and it's as fragile as a kitten... breaks my heart, but it's what we have.