HELP - threaded spark plug hole
Changed the plugs on my Clevo last night... all but one.
Pulled out the second from front spark plug on the left bank, and it was very difficult to remove. Backed back a bit, then took it out. Looked like a spark plug, only in need of replacement - threads were fine on the plug.
Took my new one, inserted, turned... stuck fast. Pulled it out and the thread was a little... well, not cross-threaded, but the first "turn" in the thread was now absent. Tried again - just kept going around and around and around... it's now in there finger tight on about 1.5 threads after much swearing and a lot of knuckle damage.
So, I know that the threads are stripped on the block. That's the annoying part that I can live with for now. Question is, with the spark plug only a little "in", the car seems to run OK but I'm worried about long-term damage. After all, it's only creating a spark, right? Does it really matter that the spark is happening an extra 5mm up the tube? It'll still "bang", right?