Spark Plugs - Please Read

[JJ@WMS]

There is a specific tool used to gap Iridium plugs. Tapping them on something is not the correct way. The tool gaps both standard and iridium plugs.

JJ

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[MAPerformance]

Here is a good link: http://densoiridium.com/installationguide.php

They suggest using pliers to increase/decrease the gap but if you slip with the pliers and knock out the electrode or porcelain you can watch your 9 dollars go in the garbage one by one.

Another way to do it is to use a socket and vice as shown below, but not everyone has a vice, or a gapping tool. So, using wood laid on a bench; lightly tap or push on the wood to decrease gap. This has worked out sufficiently for many garage installers for many years.

Another good link: http://www.evolutionm.net/forums/evo-engine-turbo-drivetrain/604452-iridium-spark-plug-gaping.html

 

[Sup3rPat]

Just swapped out spark plugs for NGK 6510 and my car is running smoother, even shifts better... placebo effect... maybe. Oh well, logs don't lie and after a couple WOT runs no knock! Original spark plugs all had gaps between .032 to .034. +1 on changing out spark plugs if your going to mod

 

[Renner]

There is a specific tool used to gap Iridium plugs. Tapping them on something is not the correct way. The tool gaps both standard and iridium plugs.

JJ

This^ not need to hit them, just use a gapping tool

 

[wmsky33]

Just swapped out spark plugs for NGK 6510 and my car is running smoother, even shifts better... placebo effect... maybe. Oh well, logs don't lie and after a couple WOT runs no knock! Original spark plugs all had gaps between .032 to .034. +1 on changing out spark plugs if your going to mod

What did you gap them to?

 

[Sup3rPat]

. 027

 

[2015-MUSTANG]

Just picked up some ngk 6510. They all came gapped at 0.035. I plan to gap to 0.028. Did everyone else have to gap their new spark plugs? I guess I thought they would be pre gapped to 0.028.

 

[gr8popp]

I just swapped mine this evening. The Ford plugs were pretty consistent between .030-.032. I went with the NGK 6510, which came gapped closer to .040. I regapped them to .028 using the old Am Pro gap tool and some channel locks.

 

[2015-MUSTANG]

Finally changed my plugs with ngk 6510 as well. I decided to gap them by gently tapping with the wooden arm of a hammer to 0.028. The ones I pulled out we're all gapped to 0.030. You know, I ve been very luck in that everything has been put together fine on my car. I here many have issues with panel alignment, loose clams, spark plug gaps amongs other issues but I have been lucky. ........Knock on wood.......

 

[bluestang50]

Here is a good link: http://densoiridium.com/installationguide.php

They suggest using pliers to increase/decrease the gap but if you slip with the pliers and knock out the electrode or porcelain you can watch your 9 dollars go in the garbage one by one.

Another way to do it is to use a socket and vice as shown below, but not everyone has a vice, or a gapping tool. So, using wood laid on a bench; lightly tap or push on the wood to decrease gap. This has worked out sufficiently for many garage installers for many years.

Another good link: http://www.evolutionm.net/forums/evo-engine-turbo-drivetrain/604452-iridium-spark-plug-gaping.html

If you don't have a vice I have done it with great success using a clamp like the one in the link below.

http://www.homedepot.com/p/DEWALT-Small-Trigger-Clamp-DWHT83191/204987956

 

[Renner]

Replacing mine..what is the torque spec on the plugs when installing? Too lazy to search ;)


Edit: looks like 15ftlbs is about right...just gonna stick with that

 

[Yruyur]

Replaced my stock plugs with NGK 6510s. Checked all factory plug gaps and they were .028 on-the-money.

 

[Process]

I'm running ngk 6510 on 15psi. Gapped at .030

 

[MAPerformance]

I'm running ngk 6510 on 15psi. Gapped at .030

This is for Ecoboost Mustang ;) haha. Nice setup though!

 

[Process]

This is for Ecoboost Mustang ;) haha. Nice setup though!

Damn tapatalk. I didn't realize what forum I was in.

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