How to stop this?!?!?!
My car always had a little miss in it after I put on my exhuast, but I kinda ignored it. Well it progressivly got worse. Well when I did my 1.6 RR`s, I noticed that most of my sparkplugs where`nt all the way threaded! I thought nothing of it, and tightened them back when I was done installing the rockers/springs. Well I went to the track, and low and behold, the miss came back. LoL great timing huh? Well I run the exact time that I did before the 1.6`s. I was MAD! Well I take it home, and low and behold, the spark plugs have began to back them selves out again. I surely tightened them! I`ll be honest, I didn`t torque them, because I couldn`t fit a tq wrench in there. :-P Well let me hear your suggestions/comments.

 

I had that happen to me too. Turns out they just needed to be torqued a little bit tighter. I just go about 1/4-1/2 past when it hits, and haven't had a problem.

 

I have had the same problem a couple of times. I usually can tell by the ticking noise it will make. I just tightened them a little more than normal and it stopped. just don't make them too tight.