hey guys i just got the NGK TR6's spark plugs and i was wondering are they ready to go in the truck? are they all set or do i need to gap them or something, cause it does say on the box gap plugs to specs or something like that..... do i ignore that and put them in or what do i do?

 

You should always gap new plugs before installing them....Never trust the factory gap......

 

well im stupid, so how exactly do i do that????

 

It can be a little tricky if you have never don it before...Fisrt you will need the proper tools such as a spark plug gapping tool or a feeler guage. Both are available at any auto parts store. Basically gapping refers to adjusting the space between the center electrode of the plug and the outer electrode. Ford calls for .042to .046 for the L. I personally set mine at .042. When you get the tools, practice on a couple of older plugs until you get the hang of it. Then do all of the TR6's before you install them. Good Luck...

 

so i should make sure there at .042 right? my truck is all stock except K&N Air Filter, and the Air Box mod, and im driving it in the winter....... .042?

 

I have mine set @ .038
Insufficient spark plug gap can cause detonation, even engine damage. Too much gap can result in a higher rate of misfires, noticeable loss of power, plug fouling, and poor economy.
Let your tuner be your guide.

 

well before i mess up my truck, and break my plugs, im asking the place i bought them from to help me out, im gonna try going about this the "safe" way.

thanks for your guys help though, i appreciate it alot.

 

My local tuner here in south florida says to gap them at 0.40(Razers Edge),I think alot of other Lightning owners will agree...

 

.040-.042" gap and DO NOT USE a "feeler gauge" They give false measurements on spark plugs. Only use a 'wire-type' gauge where the gauge will have different thicknesses of 'wire' that you slide between the two electrodes--looking for a slight 'drag' as you 'gently' push-pull the 'wire' between the electrodes.

And never use a plug that has been dropped!

Dan

 

I run my TR6s at .040. No spark blowout here. No recorded misfires. And no detonation.

good luck,
joe