1973 318 - daily driver for years - now won’t start

I had a similar issue driving home from a local show. running great all day & then by the time I got home it would not idle.

It would not restart either.

So I checked the timing chain for slop & it was pretty bad.

I took it apart & found the original nylon gear timing gear (35K) miles or so, some of the teeth showed more wear than others.

I installed a new chain & it fired right up & idled.