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How do you gap spark plugs?

A friend of mine is getting NGK platinum plugs for his 99 Accord I-4.

I'm guessing they require "gapping" which i dont even know what it is. LOL

I didn't gap my denso iridiums and they work fine.

So... how do you gap? (i will buy the little gapping thing at pepboys tomorrow)

thanks
ak

 
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Dang dude...you threw in plugs and did not even check the gap?

Lets say the gap is .45

You look for the .45 on the gapping tool and make sure that the gap in the plug fits snug around the .45 on the tool.

Not sure what the gap is though so you should find out.

 
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Unless you drop them, shouldn't they allready be at the perfect gap?

 
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Yes if ak whent inside and told them that he needs spark plugs for his civic they come pre gap. If you just go and get regular sparkplugs or then you have to gap them.

 
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How do you gap them? Well I don't know if you ever been in the autostore and seen some round keychaines with lots of small numbers all away around. Well that is one thing that you can use to gap them. You put the opening of the spark plug in it and slide it to the degree that you want to set it. As you slide it the gap will get bigger.

Hope it helps.



[IMG]i/expressions/face-icon-small-wink.gif[/IMG][IMG]i/expressions/face-icon-small-wink.gif[/IMG]

 
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Just because you ask for plugs for a Civic, DOESN'T mean you get them pregapped.

 
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spark plugs never come gapped, especially the denso's and the ngk's also you use the gapping tool to gap them with. and to find out what you need to gap them to the manuel for ever car will say it in the specifications table...

 
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CHeck your owner's manual.

 
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BTW, wire gapping tools are much more accurate than the sliding "coin" type ones.

 
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BTW, I'll say this again!

IF YOU WANT POWER FROM PLUGS...BUY COPPER PLUGS!

 
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Why copper? As far as I knew, Iridium power was the best.

 
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O YES, ngk absolutely come pregapped from the honda dealer. i worked there and everyone was always careful about not dropping them

 
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alll righty, i'll go buy one of those gapping rings and read the manual.

thanks guys

 
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Denso Iridiums comes Pre-Gapped people!
Mine did my friends did thas wha I was told my whole life and it works perfect on my car.
They also hvae a copper core center and an ultra micro iridium tip.

 
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you're not supposed to gap iridium's anyways, they are too fragile (that's why they all come pregapped)

 
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Well no but I was trying to be brief. See I go in to a auto store I tell them I need four sparkplugs, They usually ask me what type and WHAT KIND OF CAR I drive (Make, model, year) then they go and get them. (Pregapped) But I always double check to make sure that they are gapped properly.

 
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Yes I can't agree with you more on this. I was just giving him an example of a tool that is used for gapping them and how to do it.

 
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So, every one agrees that the Denso Iridium plugs are one of the best?
I am going to be changing my this weekend, but dont know which ones to go with. Any suggestions.

'the ol'mighty coin ring gapper you see on all 'mexican' mechanics key chains'

 
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Ive been buying NGK for a long time now even on my previous Honda and all the plugs i purchased were pregapped

 
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I am running the ZEX plugs for nitrous / turbo.
It came pre-gapped. Works fine in normal driving conditions.
Haven't tried it with the N2O yet.

 
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densos are pregapped.

 
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Mine came pregapped as well. I checked them with my gap tool thang. I have like 5 of those boogers....took a liking to them when I was about 16 for some reason.