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What type anti-seize for spark plugs? #2457984 12/09/11 02:56 PM
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Loobed Offline OP
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What type anti-seize should I use for installing spark plugs in aluminum heads? I have the copper type and the silver type. Does one work better than the other? Will one run into the spark gap and cause a misfire, or will it cause a hot spot and preignition?

thanks

Re: What type anti-seize for spark plugs? [Re: Loobed] #2457988 12/09/11 02:59 PM
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Smokefan1977 Offline
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Silver!!

Copper and Alum don't get along


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Re: What type anti-seize for spark plugs? [Re: Loobed] #2457991 12/09/11 03:04 PM
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mechtech2 Offline
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Only use a light trace amount. Don't gob it on the threads.Normal silver is safe.

Re: What type anti-seize for spark plugs? [Re: Loobed] #2457995 12/09/11 03:09 PM
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Radman Offline
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I haven't seen silver anti-seize before. Nickel is probably the most common for what you want to do.


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Re: What type anti-seize for spark plugs? [Re: Loobed] #2457997 12/09/11 03:10 PM
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wirelessF Offline
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What plugs are you installing? The more expensive NGK plugs don't need anti-seize.

Re: What type anti-seize for spark plugs? [Re: Radman] #2458006 12/09/11 03:23 PM
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Originally Posted By: Radman
I haven't seen silver anti-seize before. Nickel is probably the most common for what you want to do.


Silver color. I don't know what is in it. It is the normal cheapo permatex type anti-seize compound.

Re: What type anti-seize for spark plugs? [Re: wirelessF] #2458007 12/09/11 03:24 PM
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Originally Posted By: wirelessF
What plugs are you installing? The more expensive NGK plugs don't need anti-seize.


Autolight double platinum

Re: What type anti-seize for spark plugs? [Re: Loobed] #2458010 12/09/11 03:27 PM
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Chris Meutsch Offline
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I used copper on my Civic, changed those plugs three times total, never had an issue.


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Re: What type anti-seize for spark plugs? [Re: wirelessF] #2458032 12/09/11 03:43 PM
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Bottom_Feeder Offline
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Originally Posted By: wirelessF
What plugs are you installing? The more expensive NGK plugs don't need anti-seize.

It is is you want to be able to remove the plugs someday and leave the aluminum threads in the head.

Re: What type anti-seize for spark plugs? [Re: Loobed] #2458047 12/09/11 04:09 PM
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scurvy Offline
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Originally Posted By: Loobed
Silver color. I don't know what is in it.


This is typically graphite, aluminum & copper. I prefer nickel-based antiseize for glow plugs in diesels, but the cheapo graphite/Al/Cu stuff works fine for spark plugs.

Just use a tiny bit (small spot ~5mm diameter and very thin) and roll it into the threads before installing it in the head. A little dab'll do ya!

Originally Posted By: wirelessF
The more expensive NGK plugs don't need anti-seize.

I've never met a threaded fastener that didn't benefit from an appropriate application of anti-seize with appropriately reduced fastening torque.

Do you need it? Probably not. Will it make your life easier down the road? Absolutely.


You are entitled to your own opinion but not your own facts.

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Re: What type anti-seize for spark plugs? [Re: Loobed] #2458063 12/09/11 04:24 PM
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This question never seems to get a clear answer. Permatex has the three basic types at their website: gray/silver (1600F), copper (1800f) and Nickel (2400F). The silver PDS says its good for plugs. The copper says its good for plugs in aluminum head engines.

I just got off the phone with a Permatex "tech.", and he also did not give a clear answer. He stated that basically any of them would work o.k.. When asked which was best or why the copper specifically stated use in aluminum heads, his answer was that the copper one is "better" because of its higher heat range AND better conductivity. When asked about galvanic corrosion between copper and aluminum, he said that there is some concern about this BUT it is not a concern in this application. shrug

I stated that I didn't think engine heads approached 1600F and he said they did. WHAT"S THE TRUTH HERE>

He then said the nickel antiseize is also an excellent choice and that is has good/better conductivity than the gray/silver.

I have always used the gray/silver product, VERY minimal amount, in both iron and aluminum heads with no "apparent" problems.

Am I doing something wrong? Should we use the copper? Or, even the nickel? shrug I would like to hear other opinions and real world experience.

Re: What type anti-seize for spark plugs? [Re: Loobed] #2458085 12/09/11 04:47 PM
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LoneRanger Offline
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I'm more interested in how to calculate how much to reduce OE torque spec when using anti-sieze. Say OE spec is 12 lb-ft. If anti-seize is used, what should the torque ratchet be set to?

Re: What type anti-seize for spark plugs? [Re: Loobed] #2458101 12/09/11 05:04 PM
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beast3300 Offline
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flamesuit on/

No anti-seize needed.

flamesuit off/


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Re: What type anti-seize for spark plugs? [Re: Loobed] #2458125 12/09/11 05:30 PM
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ronbo Offline
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I have anti-seize and it's great BUT messy. I prefer to use di-electric grease which is clear. Also use on boot to put on spark plugs. http://www.amazon.com/Permatex-22058-Dielectric-Tune-up-Grease/dp/B000AL8VD2

Re: What type anti-seize for spark plugs? [Re: LoneRanger] #2458159 12/09/11 06:03 PM
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hisilver Offline
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Originally Posted By: LoneRanger
I'm more interested in how to calculate how much to reduce OE torque spec when using anti-sieze. Say OE spec is 12 lb-ft. If anti-seize is used, what should the torque ratchet be set to?


I have heard reduce the torque by 15 percent.

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