4.6 blew out the insert

[ANGELO]

My girlfriends 2003 explorer with the 4.6 blew out the insert and plug today on I think #8. I've never messed with the mod motor spark plugs before. But I'm sure I wouldn't be able to use the standard size insert any more.
I found this
Ford 4.6 5.4 Blown Spark Plug Failed Repair Fix Insert Triton Extra Large Bushng | eBay

And he makes one a size smaller. Which size do you think I would need?

 

[TrikeKid]

Did it already have an insert on it? Got a pic? The normal timesert is a little bigger than the parts store thread savers.

 

[ANGELO]

Did it already have an insert on it? Got a pic? The normal timesert is a little bigger than the parts store thread savers.

I'll get a picture tomorrow. The instert was threaded on the sparkplug when it popped out. The plug did something neat to, the entire plug can freely spin separately from the threads and nut.

 

[ANGELO]

It came out still threaded together

 

[TrikeKid]

Smaller oversized insert should do just fine, that looks smaller than the timeserts I use at work.

 

[Leadfoot21]

loctite it to a fresh plug and run it back in doesn’t look bad in the picture . What you don’t want to see is the insert blown out where a leak caused it to melt away the insert and damage the threads .

 

[ANGELO]

One of the cylinders felt questionable, I'd like to do a insert before it blows a plug far from home. Should I do a standard insert or the same bigger one?

 

[Gdogg]

I just fixed one a couple weeks ago that blew out the insert and plug, I had somebody make me an oversize insert and it ended up being 20mm x 1.25 , I just tapped the plug hole put some JB on it and it's going.
I wish I would've found that one on ebay it would've saved a bunch of time.

 

[bunk]

That looks like a cal van insert. If there are threads in the head get some permanent thread locker and put it back in. If there are no threads, your in a pickle.