spark plug blew out of the head

[dnagpaul]

i was driving my acura TL 3.2 1999 model and all of a sudden I heard a snap noise and a very loud sound starting coming from the engine. I drove it 2 miles to my hourse and when I poped the hood, I noticed that one of the spark plug seal was popped and the loud noise was coming from inside the hole. Also the seal had and the tube that attaches the seal were both broken. What do I do, is this an expensive fix??

[D.Zooxy]

Has anyone seen a MINI Cooper engine pop a spark plug out of the head? This happended to me on Friday evening and fortunately I wasnt too far from home. I drove the car home on three cylinders and made a call to my mechanic. On Sunday afternoon, he came over and installed a helicoil in the number 2 spark plug hole. Just in case, I made a call to a head remanufacturer down in Clearwater, Florida. I explained to him the situation and he told me that he has seen this several times and that I wasnt the only one. I also found a forum on a MINI website that had owners complaining of the same thing.
My car is fixed and running fine, but now I am worried that this is going to happen again. Just curious if anyone else has seen this or had this happen to their car.

Chris