01-10-13, 10:29 PM
First 1 or 2 times maybe. But since then the heads been cleaned with compressed air and also a stick with rag and grease.
As said been 3 plug changes in all so far 1 set of std ngk then 2 sets of iridium.
Totally stumped me and the garage as to what's going on. Threads are clean, whole and look fine. I'm sure they are stretching threads by now but they look fine and tighten up as expected. Just a 1000 or so miles later the start to lossen again.
Why is a mystery, how to stop it is the problem.
As said been 3 plug changes in all so far 1 set of std ngk then 2 sets of iridium.
Totally stumped me and the garage as to what's going on. Threads are clean, whole and look fine. I'm sure they are stretching threads by now but they look fine and tighten up as expected. Just a 1000 or so miles later the start to lossen again.
Why is a mystery, how to stop it is the problem.
![[Image: 82304.png]](http://mefi.us/images/fuelly/smallsig-uk/82304.png)