Spark plug gapping tool

[4gfun]

How do you all gap your plugs? I have been gapping with a plug gapper and bending for many years now but years ago, I also had a jacob's spark plug gapper that gapped plugs great and consistently.

I know that is definitely overkill, but sometimes I worry that I am bending the electrode incorrectly etc...not perfectly straight...especially when I close the cap too much and have to reopen the gap

Probably a stupid concern, but hey just a question.

Thanks

 

[clipto]

Use a basic spark plug gapper at the auto store. Then if you need to close the gap I just tap it on the stut tower unless your paint is to fresh for that then bang it on something hard, just not to hard or it will close all the way. I swear youtube is the new video dictionary or studying.. http://www.dsmtuners.com/forums/frequently-answered-dsm-questions/233421-spark-plug-faq.html gap .28 ngkbpr7es close gap as you increase boost if starting to blow out spark.
[ame=http://www.youtube.com/watch?v=lk70oyUEftY]Spark Plug Gap - NGK Spark Plugs - Tech Video - YouTube[/ame]

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[my dreamt dsm]

It could just be me but I use a feeler gauge.

 

[4gfun]

Thanks...this is the technique that I have been using for years generally. I have both of those tools...didn't know about the center part of the tool on that second video. Usually use the tool on the first video to open the gap and the second tool to check the gap.

Use a basic spark plug gapper at the auto store. Then if you need to close the gap I just tap it on the stut tower unless your paint is to fresh for that then bang it on something hard, just not to hard or it will close all the way. I swear youtube is the new video dictionary or studying.. http://www.dsmtuners.com/forums/frequently-answered-dsm-questions/233421-spark-plug-faq.html gap .28 ngkbpr7es close gap as you increase boost if starting to blow out spark.
Spark Plug Gap - NGK Spark Plugs - Tech Video - YouTube
How To Use a Spark Plug Gap Tool - YouTube

 

[hotrodssnova]

I also use feeler gauges. I carry a spark plug gapper on my keychain to open beers.

 

[clipto]

I also use feeler gauges. I carry a spark plug gapper on my keychain to open beers.

! Genius now I will never struggle opening beers again. On a side note feeler gauges or gapper is good enough, it's not like you have to be 110% perfect on the gap hell you could run .027 instead of .028 and be fine.

 

[bradselph]

It could just be me but I use a feeler gauge.

same here.

this works best when you start gapping around .020 and under.

 

[4gfun]

Yep...have used feeler gaugest too...have one handy....so how far off can you be on gap...example gaps are supposed to be .028 on some of the colder plugs. This is kind of a side question.

 

[clipto]

Dont go bigger then .028. The less gap like .025 0.26 .022 sizes depends on how much boost your running and if the spark can keep up with it. Closing the gap will keep up with the high boost and speed of the detonation to make spark on time. Otherwise you will have bad spark.

 

[4gfun]

Sounds like a good rule of thumb.

Dont go bigger then .028. The less gap like .025 0.26 .022 sizes depends on how much boost your running and if the spark can keep up with it. Closing the gap will keep up with the high boost and speed of the detonation to make spark on time. Otherwise you will have bad spark.