Originally Posted By: The_Eric
Originally Posted By: JustinH
Call me an idiot, but I have never torqued a spark plug in my life. Never had a problem with one either.
A lot of the newer motors I have worked on say not to use anti-seize on the plugs because you may overtorque it.
I just follow the directions on the box, usually 2/3 of a turn after seating.
I get the plug all the way to seated with my hand, not a wrench, and I have never cross threaded anything.
Some people are just over thinking it.
The OEM isn't using anti seize from the factory, and you should hear the moans and groans coming from the plug when it comes out. I ALWAYS use PB blaster when taking out factory plugs.
You don't want to break the plug off in the head.
I think you've pretty well summed it up. Like an old shop foreman always said "We're not building rockets here"...
It's pretty hard to over torque a spark plug when you follow the instructions on the box - 2/3 turn for gasket seat plugs and 1/16 turn for tapered seat plugs.
Now don't get me wrong here - I'm just as anal and meticulous as the next guy, but I also temper that with a dose of common sense.
Agreed. On torque anyway.
My two cents on anti seize - I always use it, even though I change the coppers yearly. That said, they always come out easy.
TIP: look at your old plugs when you pull them out - all the threads that have combustion residue on them do NOT need anti seize as they are in the combustion chamber. Only apply to the clean area of the plug as it is the only area in contact with the head. In my case, that means only ~75% of the plug gets A.S.. Cant say for sure if it is good or bad, but I dont want A.S. in the chamber.