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Old 08-26-2011, 01:26 PM   #1
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Default white tip spark plugs... normal?

Ok so I decided to check my spark plugs... and the tip where you gap it is grayish/white.... according to my search. That means I'm running lean.....and its grayish/white. on all spark plugs..... the thing is I have a 1998 hx swap d16y5... and its a lean burn motor.. and its swapped in legit running the correct ecu......... since I'm running this lean burn motor.. does that mean that its normal for my spark plugs to show grayish/white.?


a little more info the threads have a black stuff on it... but its not on the tip of the spark plug.. its just on the threads....... o yea i took pictures after i cleaned them so you may not see it clearly

UPDATE.... 2 plugs have very little oil on the washer portion of the plugs... JUST THE WASHER has oil on it




Last edited by milkwasabadidea; 08-29-2011 at 05:51 PM.
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Old 08-26-2011, 02:24 PM   #2
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Default Re: white tip spark plugs... normal?

Light tan or grey is normal, your look black, either carbon.


http://www.gnttype.org/techarea/engine/plugs.html
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Old 08-26-2011, 02:42 PM   #3
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Default Re: white tip spark plugs... normal?

Where do you see white?
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Old 08-26-2011, 03:00 PM   #4
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Default Re: white tip spark plugs... normal?

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Originally Posted by motegicivic View Post
Light tan or grey is normal, your look black, either carbon.


http://www.gnttype.org/techarea/engine/plugs.html
The part where you gap it looks gray white.. then its black at the threads
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Old 08-26-2011, 03:05 PM   #5
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Default Re: white tip spark plugs... normal?

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Where do you see white?
Its white on the tip where u gap it.. but its black near the threads... I sea foamed the motor not too long ago... but jus through the gas tank
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Old 08-26-2011, 03:08 PM   #6
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Default Re: white tip spark plugs... normal?

The second picture shows a little white on the tip where u gap. But the threads and circle part is black. So I have no clue what going on... I'm changing it soon though after I sea foam it
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Old 08-26-2011, 03:15 PM   #7
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Default Re: white tip spark plugs... normal?

Jus went on ngk website. Looking at the chart, my spark plugs seems to be normal apparently... .. mayb slightly running rich..
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Old 08-26-2011, 03:20 PM   #8
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Default Re: white tip spark plugs... normal?

Your spark plugs are perfectly normal, white means its running lean and is not good.
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Old 08-26-2011, 03:47 PM   #9
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Default Re: white tip spark plugs... normal?

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Your spark plugs are perfectly normal, white means its running lean and is not good.
it was white/gray before i cleaned them... so they look a little better....

im running a lean burn y5 motor.... isnt it supposed to show lean since its a lean burn motor?
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Old 08-29-2011, 05:10 PM   #10
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Default Re: white tip spark plugs... normal?

update... i have very little oil on the spark plug WASHER and washer alone... nothing else

Last edited by milkwasabadidea; 08-29-2011 at 06:05 PM.
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Old 08-29-2011, 06:39 PM   #11
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Default Re: white tip spark plugs... normal?

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Originally Posted by milkwasabadidea View Post
it was white/gray before i cleaned them... so they look a little better....

im running a lean burn y5 motor.... isnt it supposed to show lean since its a lean burn motor?
Running lean and a lean burn motor are not the same things. Your plugs are fine. Move on.
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Old 08-29-2011, 08:08 PM   #12
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Default Re: white tip spark plugs... normal?

They look okay to me, now that you have them out, might as well replace them. They don't cost more then a few bucks.
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