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Anti-seize on spark plug threads?

green55

green55

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Do y'all use anti-seize on your spark plug threads? Seems to be mixed opinions about it. Everyone says to use di-electric on the wire boot. Doing mine for the first time in the next couple days, want to make sure I don't screw it up.

Also looked like torque is 20 ft/lbs. That sound right?
 
I watched a video on this the other day, very odd timing!

The statement made was that if the plugs are plated (shiny body) you don't use anti-seize. Also commented about using anti-seize changing the torque spec.

Are these just regular plugs in iron heads? Is seized plugs in iron heads a problem in some areas? Not saying it isn't, I've never needed it, but maybe that's because it isn't an issue where I live.

I too just snug them up. One hand around the ratchet head.
 
I think manufacturers will tell you not to, even in aluminum, but I’ve had seized plugs in iron heads, so I still give them a very light smear with a brush, not enough to build up anything between the threads, but enough so if you roll the threads on you finger you’ll see the pattern with anti sieze. And keep the electrode clean!
Ive also had them break loose after putting, I’m guessing 50+ lbs of torque on them....I guess it might be the winter corrosive and humid environment in MI. that causes some issues.
 
I use antiseize on aluminum heads because there is less chance of galling the threads. I also like NGK plugs because the plating on the thread reduces the chance of thread damage.
 
I'm only just now starting to use anti-sieze more, but I don't put it on spark plugs. I do torque them to whatever the spec is.
 
H1tman442 said:
I dont personally use anti seize on the spark plugs. As was mentioned above I think 20 ft lbs sounds excessive. I just get them snug with my hand around the head of the ratchet. Definitely use dielectric grease in the spark plug boot.
Click to expand...

I only use a T handle spark plug wrench anymore. I would think that anti seize would affect the grounding of the electrode but that's just a guess. I usually run such a hot ignition system that you could run water through the carb and it would still ignite.

Joel
norcal
 
Joel Wilson said:
I only use a T handle spark plug wrench anymore. I would think that anti seize would affect the grounding of the electrode but that's just a guess. I usually run such a hot ignition system that you could run water through the carb and it would still ignite.

Joel
norcal
Click to expand...
Whats your definition of a hot ignition system?
 
I feel like an idiot. I’ve made it halfway through changing the plugs, but can’t get the new one I’m working to thread in. I haven’t put any pressure in it. Just have the spark plug in a spark plug socket with not wrench attached. Any tricks for these kind of scenarios? All of the others have gone in fine so far doing this
 
green55 said:
I feel like an idiot. I’ve made it halfway through changing the plugs, but can’t get the new one I’m working to thread in. I haven’t put any pressure in it. Just have the spark plug in a spark plug socket with not wrench attached. Any tricks for these kind of scenarios? All of the others have gone in fine so far doing this
Click to expand...
Thread it in by hand to start. It will give you a feel that you will never achieve with a socket.
Most likely your not 100% lined up.
 
I’ve just got 3 left and their boots are being a bitch to get off. I’ve read to try the whole “pull slow and steady while twisting”. Not having much luck lol. May have to leave the rest for tomorrow night
 
I always put anti seize on spark plugs. I use the copper one. Don’t get any on the electrode. Nothing sucks more than trying to unthread a plug that’s been seized in a head either iron or aluminum.

Some plug boots suck more than other. Might be corroded to the plug if it’s been a while.
 
I use an old straight spark plug boot with a 3/8 bolt in wire end if I need more reach. A piece of hose will work to. Thread the plug in as far as you can by hand, before using the socket and handle. Anti size is made with nickle so it should be conductive, use sparingly if you want to use it.
Yes if things aren't going well, fighting to get something to go and it just won't, walk away have a cup coffee or something. Wen you come back to it, it will go together like should have before.
 
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