What width should the gap be on my Denso plugs? 01 Lightning. I'm going to install them now.

 

I have been told 40 thousandths by Sal. I'm pulling mine today because I have a engine miss. Hope it's the plugs... Jeff

 

Also be careful with that 4 mm tip. It does not take much for it to break or bend...

 

I was told by the manufacture that they are gapped around .038 from the company and not to touch them!My truck runs just fne with that gap.

Matt

 

Mine came right at .38. I was told to leave them at that!~~~

 

They should be already @ .038 Thats what ive always said was the best gap and thats what i have mine at with no problems...JL

 

JL,

We installed them today and one had a broken tip. I don't know if Jerry broke it or not. He said he didn't and I believe him but I'll let you decide. All of them were gapped at .042 and didn't have to change the gap on any of them except the broken one and after tapping it a couple of times we noticed that the tip was broken. Long story short, I need another plug.

Tim PS. The Bassani still hasn't been delivered. Santa must have a heavy load?

 

How was the install tim???

Any of them loose???

Bob

 

Give me a call.......JL

 

Bob,

None were loose, to my surprise, but my L only has 1700 miles on it. And, all the Autolight plugs looked great. I'll post a pic of them tomorrow. All 7! hahaha!

Johnny,

I'll give you a call Monday morning. Thanks.

 

Bob,

Jerry, an experienced mechanic but not on Lightnings, installed them in less than an hour. It wasn't any trouble at all.