new plug extenders faulty?

[chrisdurham]

hi guys,

so today i decided to change my plugs, extenders, cap and arm. done then all and when i started it the car ran really bad think on 4 cylinders LOL. they were all fitted firmly etc. then i noticed one arcing really badly between the extender and plug. really odd, swapped that one with an old one and it improved a bit - but wtill wasnt running on all . so i put the old extenders in and it ran fine again.

i bought these from one of the well known specialists, so wots going on here a few faulty ones?

im using the stock NGK.s and its on old std leads. (new ones to get also)

anyone else had this?

[gbtvr]

Just fitted 8 new ones from a well know with 3 letters as name, no problems. Suggest you make sure they are correctly clicked home, very tight with new extenders; I installed extenders then the leads to make sure they were home. (make sure they click home)

[chrisdurham]

hello, yeah done all that even check on the bench to make sure they were fully seated - but they werent as tight as i would have expected when compared to a friends chim..

[carsy]

Do away with them as per this thread. http://www.pistonheads.com/gassing/topic.asp?h=0&a...

[blitzracing]

chrisdurham said:

hi guys,

then i noticed one arcing really badly between the extender and plug.

How did you observe this as the plug extender goes over the top of the plug connector- where was it arcing to and from?