Roger Long wrote:
Geesh! Thanks Roger, something else to worry about..
Flew for about 1 hour and 40 minutes...don't know when the mag went
out... no engine indication roughness at all.

Terry

This can burn valves. On some engines, it can even damage the exhaust
piping.

Flying even 40 miles this way could be burning the engine's candle at both
ends and maybe even your own.

--
Roger Long