Gapping plugs?

[Adrian_Visser]

Total noob question. I can't find a spark plug gap value for an s52 anywhere in the Bentley manual or online. I'm not even sure if you're supposed to gap NGK iridijm plugs anyways.

So is there a number or do I just leave them as they were when I took then out of the package?

[lennon]

the gap isn't supposed to be adjusted

[Adrian_Visser]

Thank you.