Thanks Gary, really.
The Timesert kit for 1/4-32 x .180" is $124! Holy sheep dip!!
I watched a couple of vids while you were typing. Apparently removing and refreshing inserts is commonplace. Excellent!
Do you feel the use of the provided thread locker would keep the insert from breaking off near the bottom and unscrewing in the case where overtightening of the glow plug occured?