Spark Plug Gap - NGK Spark Plugs - Tech Video

[sjagain]

how much resistance should there be when using a wire gapper?

[DubNubin]

I see that you guys show a NGK spark gap gauge tool that is fold out in this video...but i am unable to find this anywhere for sale. I would like to purchase one like this, can it be purchased?

[fatchrome]

Oh and yes I bought NGK's.

[fatchrome]

Great Tech Video. Great help to a Spark Plug replacement NOOB/ VIRGIN like myself. Thanks Again :)

[abunaiN1]

you gap iridium spark plugs in the video

why local seller told me not to gap my iridium plugs ?

[MrSnakeaholic]

@abunaiN1 you can break the iridium tip



[abunaiN1]

@MrSnakeaholic i'll be careful !!

[MrSnakeaholic]

@abunaiN1 i just broke one.....lol

[abunaiN1]

@MrSnakeaholic hahah lool just be careful i made custom tool my shelf it works fine !

[Theultimatebohab420]

i just bought a whole set of the NGK iridium ix that im putting in right now!

[osbaldopreciado]

That's not even how your suppose to gap a spark plug with the coin style gapper, of course your going to break the tip like that!!

[dusch888]

ngksparkplugsusa,

I have a 2000 ski-doo mxz snowmobile that occasionally backfires on warm startups. Does this have anything to do with my NGK spark plug spark gaps? Timing? what else should i check? Thanks.

[ngksparkplugsusa]

@dusch888

This backfiring condition could have to do with timing or possibly fueling issues or maintenance issues. Generally backfiring will not have to do much with the plug unless it is gapped incorrectly.

[yamoholic]

most of my sleds back fire and sputter on warm up, its just how they are designed, its not fuel or timing. If it is doing in when it is warm, then yes its probably one of those things. The only sled i have that does not back fire is my 4 stroke. But it design is totally different.

[ngksparkplugsusa]

@fetymann

A coin style tool should be sufficient to find the approximate plug gap but a feeler gage or wire-style tool is preferred.

[fetymann]

Please explain why the coin style tool is not to be used, besides breaking the tip. I'm only concerned about accuracy since this is only what I have right now. I'm just wanting to know if I should not use it at all. Thanks

[Motorfordtoyota]

We put the NGK Iridium plugs in our 01 Sequoia. 80 bucks for the sparkplugs!! All 8!

[emp0rizzle]

You're gapping it wrong with the coin gapper. You're suppose to use the keyring hole, not the measuring side of the coin. The hole has a protruding lip that is suppose to be slid on the underside of the side terminal and then pried up to adjust the gap. FAIL.

[LennyCox]

@emp0rizzle Seems as though you missed the portion of the video prior to that demonstration that read, "Gapping - Incorrect". Also, maybe you didn't listen to the guy when he said gapping plugs the incorrect way could break the plug, and if that happens you should throw it away. I believe he should have shown you the correct way to gap using a coin gapper though, not just the incorrect way.

[emp0rizzle]

@LennyCox Did I comment on that part? No, I'm just saying they're pretty stupid to mention why you shouldn't use a certain tool because it can damage the electrode and that's only the case because they're not even using the tool correctly! If used correctly, the coin gapper doesn't even touch the electrode tip.

[insylem]

How do you close the gap? He never shows how. Only how to open?

[ngksparkplugsusa]

@insylem - Thanks for the question. This is highlighted @ 1:26. It shows how to adjust the gap with the correct tool.

[insylem]

@ngksparkplugsusa

No it doesn't, it only demonstrates Opening. He SAYS "Open or close the gap" However, it shows him opening the gap, then rechecking it.

[southport97]

This video fails to illustrate the point when a proper gap is achieved using the tool.

If you have a plug that needs 0.60 spec, then the 0.60 tool must barely have resist or a slight "grab" when checking. If the tool slides freely with no resistance, you are over-spec and need to close the gap and recheck for the slight contact.

[undertake782]

Hey, I would like to ask how you would know if your engine is misfiring as a result of plugging the spark plug wires in the wrong configuration? My dad has a 1995 Ford Explorer and the RPMs go up and down a bit about 200 RPMs when you first start it but you don't really notice it or it stops after about 2 minutes. Is that normal? I am just worried I might have plugged the spark plug wires with the wrong cylinders. Thank you.

[ngksparkplugsusa]

@undertake782

If you had switched the plug wires around you’d likely have a misfire that wouldn’t go away and it’d be felt under all conditions especially under throttle. It sounds like what you may be experiencing are issues with the idle air control valve or IAC. Sometimes these valves can get plugged with carbon and cause the symptoms you’re seeing. You may be able to clean the throttle body with a carburetor cleaner and help it to run more smoothly on the cold startups.

[IFlip18]

@undertake782 Do u mean starting from cold? Some engines have a higher idle when started from cold for the first 1-2 min until the oil pressure is regulated. This is done through a cranking/breather vent that goes into ur intake. After the pressure gets regulated then the engine RPMs go down by about 200-300 dropping under 1000. It is normal. Misfires are not on the other hand

[d4nk1503]

can you put racing spark plugs on a stock engine???

[ngksparkplugsusa]

@d4nk1503 Often times racing plugs are only offered in very cold heat ranges which likely will be too cold for an unmodified engine and may actually cause a loss in performance. Also, some of these race plugs have specialized firing ends designed to enhance high Rpm power but conversely they usually don’t perform very well for day to day street driving. Typically the best plug type on a stock engine would be to upgrade to a fine wire design.

[d4nk1503]

@ngksparkplugsusa thnx for the info.

[tt350chevelle]

Good info, but how are you supposed to maintain a proper, even gap? I still have a set of snap on gapping pliers that allows you to gap the plug and keep the ground electrode parallel to the tip, works very well but cannot be used on precious metal plugs. Just bending the ground strap out will give a poor, uneven gap, the tip of the ground strap will be farther away from the electrode then the body.How can we maintain an even gap??

[ngksparkplugsusa]

@tt350chevelle So long as the change in gap is limited to the recommended .008" (.2mm) from the factory setting, then the ground electrode will maintain an acceptable parallel relationship to the center electrode. For those special applications (such as some racing engines) where the gap must be moved farther than this recommendation then extra care must be used by the installer to try and get the electrodes as close to parallel as possible for the best performance and longest service life.

[digitalmuzic]

will installing the spark plugs ungaped cause the car not to start?

[carnypimp]

Possible

[jhayem12]

hi i just got my tuned up and get a spark plugs changed. i watched my mechanic change my spark plug and i didnt see them adjust or anything they just install it just like whatever i asked them "dont you have to adjust the gap?" they answered me "no" because they use iridium and it doesnt require adjustment.. can help guys if i need to adjust them?

[hundredprizm]

most iridium plugs come pre gapped

[jhayem12]

I see thanks, but Im still going to check if the gap are right

[hundredprizm]

you always should! goodluck.

[southport97]

@hundredprizm All NGK plugs come pre-gapped, but It's always good practice to check to be on the safe side. NGK plugs are the best hands down.

[Humboldt1337]

Ok, but you didnt say anything about gapping DOWN spark plugs that are gapped too large for your application.

[brontoe]

argghhh horribly detailed!!! they doesn't tell me at all how to gap a spark plug, you need to start this video over. using the coin since that is most standard. what is the correct gap!!!! give give us an example!

My question is, what is exactly .032? with the spark plug. just make another video its easier that way. we can use the coin gapper for copper plugs!!!

[unconcealed]

.032 is the size of the gap. The coin will tell you to read it. I have iridiums like shown in the video and i gapped them with the coin tool. Trick is, you have to open the gap with a pair of pliers, rather than using the coin itself.

[MegaCastleRock]

very detailed video

[TheGeorgeInVegas]

If ratings weren't disabled (WTF?), I'd give this video 5 stars. Great explanation of coin vs. feeler gauges. The HD resolution is also a nice touch since the parts of a spark plug are so small, they'd be hard too see in a lower resolution.

[MohammedSLP]

thanks for the video .