Thread: Gap for NGK iridium plugs
08-08-2007, 03:37 PM #1
Gap for NGK iridium plugs
I'm going to change my plugs today and needed caps for the iridiums.
I started to go by an import tune up shop and see if they had some old plugs I could get the caps from but went up the street to Advance Auto and picked up 4 $1.19 small engine plugs and used the caps from them.
They also had a filter wrench for $5.99. I found the iridiums at NAPA for 8 bucks a plug. He said they usually keep them in stock. (he didn't have the PMR9B plugs and didn't stock them) I went to the main NAPA wharehouse in my area that also has a storefront. A question for people who have used them. The shop manual says .024-.028 gap for the stock plugs and I think someone posted that the iridiums should be .032. Which one is correct?
08-08-2007, 04:14 PM #2
- Join Date
- Jun 2006
08-08-2007, 04:37 PM #3
NGK warns not to adjust the gap on the Iridiums. Mine were fine all gapped correctly. Not sure what it was but it was covered in a previous thread. Just tosh em in. they will work fine.
08-08-2007, 05:40 PM #4
- Join Date
- Jun 2007
I was told the same, right out of the box, I have 4 on stand by, and never leave home with out them! lol But after 24 hrs the so called failling originals are running great! Knock on wood
08-08-2007, 06:11 PM #5
Don't Gap Iridium's
Just got my Iridium's a few minutes ago. Right on the Invoice in
big print "Do not Gap Iridium spark plugs, you will snap the electrode".
The center electrode looks more like a wire to me than the OEM tapered
We'll see how they do. NGK techs told me they would run better.
My OEM's failed at 35 hours. I was thinking of sending them back to
NGK and have them tell me why they failed. Visually they look very good,
just a little discolored.
08-08-2007, 06:18 PM #6
Thanks for all the replies. I guess I'll stick them in as is.
Would it hurt to check them with my feeler gauge just to see what they are gapped at?
08-08-2007, 06:20 PM #7
08-08-2007, 08:46 PM #8
08-08-2007, 09:29 PM #9
- Join Date
- May 2007
can anybody tell me the part # for this plugs???
and where could i get the little bottom screw for it as well!!! thanks
Last edited by EGGonz; 08-08-2007 at 09:36 PM.
08-08-2007, 10:30 PM #10
I got my Iridiums for my dealer today and got them covered under warranty, they also had some old plugs there that I took the caps off, I ran them for a lil while today, but it was so freaking hot I got off the water after about an hour out there, It was 106* and very humid when I parked my truck, and I was down @ 250 RPMs.the water temp is 88*-89*.Put them in right from the box.
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