Please let us know how it eventually turns out 
@cdaquila Good Morning Carolyn, I guess this person is not going to remove the personal info .
While Time Sert doesnāt ring a bell for me I looked up their product and it looks very similar to what I found to be a successful permanent repair for stripped spark plug holes in aluminum heads 30+ years ago. Proper installation requires some patience and attention to details such as using the proper insert and painstakingly keeping the cuttings from falling into the cylinder. Itās a somewhat tedious job and while itās likely that some fine aluminum dust will escape even the most determined efforts history indicates subsequent damage is unlikely.
But all in all just consider me confirming posts above that recommend getting a REAL PRO to look at the engine for the possibility of installing good inserts.
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Time-sert has been around awhile . . . but theyāre not as well known as heli-coil
Weāve installed several time-serts . . . both regular and last-chance . . . in various Fords over the years in our fleet
In every case, it wasnāt a time-sert that blew out. It was either the factory threads or a lesser insert
And in every case, that time-sert was a permanent repair. All those trucks have been driving for several years now, without a repeat problem for the affected cylinder(s)
Thereās also no tang to break off . . . the technology is quite different, versus heli-coil
Heli-coil has its place, but there are certain situations where Iād prefer time-sert
I never installed a heli coil on an installed head, only on a bench repair and canāt imagine getting that tang out of a cylinder. Whatever the brand name of the inserts I used the piloted drill/tap forced you to do it right or butcher the head if you cut corners. And I donāt remember what the directions said but I put the insert on a new plug then painted on the loctite and installed the insert on the plug and let it set up. I donāt recall ever seeing a failed insert return.
The solid HeliCoil inserts donāt have a tang.
