i know some people will simply solder up bad drain bungs. If I was faced with not being able to repair it otherwise... I'd cetraintly do it.
on the not being able to set the tsc points. it sure was't your fault. I've always had to file and elongate holes in tsc / tisco points to fit them.. that's why I don't use them anymore. napa usually.
glad to hear ya got it going.
the 85 hole is a tad below spec. but if it wasn't warmed.. it may actually be in spec .. in any case. one hole a hair out od spec won't kill ya.
I comp tested a buddies 8n and it was darn near 78-85 across the board.
started and puleld a 5' mower fine.