SL/R230: Do the SL65 Sparks need to be gapped ?
#1
Senior Member
Thread Starter
Do the SL65 Sparks need to be gapped ?
So I installed SL65 spark plugs NGK G-Power Plug Spark 24 of them! I didnt gap them, do they come already gapped ? or do they require gapping to a certain spec?
#3
#4
MBWorld Fanatic!
Definitely yes (learned the hard way). I fitted up-gapped plugs to mine and it miss-fired. I had to remove them all and re-gap them. Mine came with 1.0mm gaps, which is what the NA engine uses. Turbos have to be gapped to 0.7mm.
Yours may have come with the right gap, but I would find out for sure.
Nick
Yours may have come with the right gap, but I would find out for sure.
Nick
#5
Senior Member
Thread Starter
No I did this just as part of servicing a week before the tune
do you recall what spark plugs they were? I emailed NGK last week and the seller of the plugs I bought the plug of on fleebay, but still no reply
Definitely yes (learned the hard way). I fitted up-gapped plugs to mine and it miss-fired. I had to remove them all and re-gap them. Mine came with 1.0mm gaps, which is what the NA engine uses. Turbos have to be gapped to 0.7mm.
Yours may have come with the right gap, but I would find out for sure.
Nick
Yours may have come with the right gap, but I would find out for sure.
Nick
#6
MBWorld Fanatic!
I use either NGK IFR6Q-G
http://www.ngkpartfinder.co.uk/car_c...ra.php?id=8319
or Bosch FR 7 KI 332 S (0.7mm)
http://www.bosch-automotive-catalog....3FautoLoad%3D1
You will often see the FR 7 KPP 33 U+ listed (1.0mm), but this is for the NA engine:
http://www.bosch-automotive-catalog....3FautoLoad%3D1
Nick
http://www.ngkpartfinder.co.uk/car_c...ra.php?id=8319
or Bosch FR 7 KI 332 S (0.7mm)
http://www.bosch-automotive-catalog....3FautoLoad%3D1
You will often see the FR 7 KPP 33 U+ listed (1.0mm), but this is for the NA engine:
http://www.bosch-automotive-catalog....3FautoLoad%3D1
Nick
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#8
MBWorld Fanatic!
OK, but they've got to be the right part number. NGK do say you shouldn't re-gap plugs because is changes the geometry and durability of the spark gap.
Vendors often get it wrong. For example, my reputable local motor factor told me the right plugs were FR7KPP33U+.
Nick
Vendors often get it wrong. For example, my reputable local motor factor told me the right plugs were FR7KPP33U+.
Nick