I Might Need A New Head Please Help

[nissan2bmw]

Ok how is everyone doing?Im doing fine besides the fact i had to tow my car home.Well it all started like this i was driving home from a friends house and i stopped at a stoplight.well the light turns green and i proceed to acclerate at about 5 mph something popped and it sounded like a helicopter was next to me so i pull over and my number 2 sparkplug is gone(96 318i)it blew out of the engine and i tried to put it back but it wasnt tighting so my guess is my thread is all messed up in the engine, does this sound right?
This happened last week but i thought it was because the spark plug wire boot was ripped, only problem i can think of is the thread in the engine.anyone have any ideas?

[Justin Sane]

A good shop might be able to repair the plug hole with a Heli-Coil insert.

[bad man working]

Yer any good machine shop will heli-coil a plug tread, I do them with the head in place and briefly run the engine without the plug to blow the swarf out

[BombSquad]

yep, work a helicoil in there to give you a new set of threads. Granted its not promised, but those small pieces of metal shavings from the old threads shoudl be collected by the magnet on your oil drain plug, so next time you change your oil, you'll be good to go. If your oil drain plug has been replaced, buy one when you go to the parts store next. It'll cost you around $6 but believe me its a good investment.

[bad man working]

How dose the swarf from a plug thread get into the oil sump unless you’ve got a hole in the piston I can’t see it. I f you can pick it up with a magnet great but it’ll either burn in the cylinder or get blown out the exhaust no worries