spark plug problem

[LiTtLe xOx BitT]

I have a little problem. When i put in new spark plugs one of them only threads in half way, im guessing its cross threaded. Any ideas on what i can do and how it will effect the car? I started it up and it didnt sound like it was misfiring.

[sunderland]

When you take the plug out, aluminum shavings on the plug threads will indicate that the threads in your cyclinder head have been cross threaded. Find an appropriate sized tap (I think most auto parts stores carry them) to clean up the threads. Use lots of lubricant while carefully threading the tap in. Get it started with your fingers before using the handle/ratchet. Of course, the safest method would be to let an experienced machinest do the job. If the threads are too far gone, you may need to use a heli-coil.

[LiTtLe xOx BitT]

there were no shavings anywhere.

[sunderland]

there were no shavings anywhere.
If you didn't see any shavings, that's good news. Are you sure it only went in half way? Put a little lubricant on the spark plug threads and carefully try it again. Sometimes it just doesn't seem right, but perhaps it's O.K. Carefully compare to the other three plugs.

[A18A]

maybe you didnt put it in right?? i find them a bitch to get them going in properly but if it runs fine like you said, it must suposed to be the way it goes in if you cant turn it in anymore.. as long as it doesnt shoot outta your car it should be good :D