Spark plug change .

[Geoff Peace]

Originally Posted by Dc1011

So the dealer figured out that the "miss" I was feeling at idle was failing spark plug in cylinder 2. So I purchased 4 NGK iridium plugs.
Can anyone give insight on replacing them dyi. Someone said something about adjusting gap?
Thanks!

Do not alter the gap it is preset. A very light copper grease on the threads, never mind the 'precoating'. screw in by hand they will screw in easily this is to prevent cross threading. They must be torqued correctly the plug manufacturers usually give the correct settings on their website. They will give a range, e.g. 15 - 20 lb.ft. Take the lower setting because the threads are greased. If you cannot find the torque post the plug reference number and I will tell you.

Regards Geoff Peace.