6.3 AMG NGK 6043 Spark Plugs Correct Gap

[Cipollini]

I´m going to order and replace the NGK ILZKAR7A10 spark plugs in my M156, but I can´t find any credible informations about recommended gap. Here I found it should be .99 - 1.016 mm https://mbworld.org/how-tos/a/merce...xt=The recommended spark plug gap,990-1.016mm).

Guy in another MB thread wrote it should be adjusted to .80 mm only.

What is the best spark plug gap in 63 AMG? Maybe it really doesn´t matter that much, but when I give the best to my car, I want it to be set up properly

Thanks

 

[mioba]

Get the right plugs for the car, they will have the right gap, have you tried MB

 

[Cipollini]

In my experiences, almost zero spark plugs come with correctly set gap.

I haven´t tried MB yet

 

[AMGeed]

From Google-:

The recommended spark plug gap for the M156 engine is . 039-. 040" (. 990-1.016mm).

Choosing the right Spark Plugs for your Mercedes-Benz – MB Medic

www.mercedesmedic.com

 

[robin.large]

These plugs will come set at 1mm gap. E.g. correct gap.

Sent from my KB2000 using Tapatalk

 

[Cipollini]

Thanks all, I´ll check if they are set exactly at 1mm.

 

[Ron240]

Just to add...spark plugs can have a variety of applications and may not necessarily be set to the correct gap for your vehicle, so you should always check with feeler gauges before fitting.

 

[Cipollini]

I won´t install them without checking the gap. I can bet my house that all 8 plugs won´t be set the same.

I don´t have feeler gauge, but I have very accurate digital vernier.

 

[AMGeed]

^ Feeler gauges are very inexpensive.

 

[Cipollini]

I know, but do you think the digital vernier won´t do the job?
Thanks

 

[EmilysDad]

......e, but I have very accurate digital vernier.

Is there such a thing as an accurate verynear .... and you can't gap a plug with a verynear

 

[Ron240]

Is there such a thing as an accurate verynear .... and you can't gap a plug with a verynear

That probably lost a bit in translation, but speaking as somebody who uses vernier calipers every day in my job...yeah I would completely agree.

 

[robin.large]

Just to add...spark plugs can have a variety of applications and may not necessarily be set to the correct gap for your vehicle, so you should always check with feeler gauges before fitting.

The NGK quoted by OP are factory set at 1mm - it's in the specifications sheet.


Sent from my KB2000 using Tapatalk

 

[EmilysDad]

That probably lost a bit in translation, but speaking as somebody who uses vernier calipers every day in my job...yeah I would completely agree.

so there was at least one person who understood my play on words
After years of using a digital vernier I then had to go old school & line up the lines ..... that's when I realised I'd got old & needed glasses to read the ****** thing!

 

[EmilysDad]

I've not had need to gap plugs for years. They either came set or, they were multi earth electrode facing the side of the centre electrode rather the end like a conventional plug & it's impossible to gap them with feelers

 

[Ron240]

The NGK quoted by OP are factory set at 1mm - it's in the specifications sheet.

That maybe so...but I still wouldn't fit any spark plug without double checking the gap first.
To me it is just the sensible thing to do and only takes a few seconds of my time.

 

[Ron240]

After years of using a digital vernier I then had to go old school & line up the lines ..... that's when I realised I'd got old & needed glasses to read the ****** thing!

Yep, tell me about it...I hate the ones with the lines. We still have them in my work but I prefer using digital or the ones with the dial gauge on them.
Reading micrometers is becoming a problem now because I need to hold it a certain distance away to focus correctly...but then it is often too far away to read.

 

[Cipollini]

The spark plugs arrived today and they were set from 1.02 to 1.08 mm.
Not much of an error, but I corrected them to 1mm anyway

Allways check your new spark plugs gaps, do not rely on manufacturer setup.

 

[EmilysDad]

The spark plugs arrived today and they were set from 1.02 to 1.08 mm.
Not much of an error, but I corrected them to 1mm anyway

Allways check your new spark plugs gaps, do not rely on manufacturer setup.

Did you buy feeler gauges then? I'd love to know how you might use a vernier to gap a plug .... especially to 10ths of thousands of an inch

 

[Cipollini]

Not yet, but I will and check the gaps again.

How did I measure the gap: 1. grab a spark plug, 2. place the vernier upper jaws between ground and centre electrode, 3. measure.
No big deal if you have some experiences with verniers.

But again, I will buy the feeler gauges to confirm my Mitutoyo vernier results.