Spark plugs. Why is it so hard?

He may not be wrong, but what bearing do any of his points have here but to muddy the waters with him trying to show everybody how smart he is......and that remains to be seen. I have my doubts.


I wasn’t my intention to side track the OP’s thread. I thought it was interesting how the copper core plug was developed. But I does hove no bearing on the OP’s issue.