Spark Plug - How do these look ?

[wixer]

Thanks for the reply Kaz. Yes, they are 7's, I found and read your article about the 6's & 7's, shortly after I posted this thread. A bit strange, as I've just trawled through all the service history paper work and the only time I can see they were replaced in the last few years was about 15K miles ago in August 2010 but the invoice states they were replaced with 6's. So they have been replaced by 7's since then but no record of who or when !

I'll remove the rear bank of plugs tomorrow but ultimately I'll replace them with some new 6's.

If they are fitted to S2000's, it'll be a bonus, as I'll have a replacement set for my S2000.

[Nick Graves]

Yes, S2K takes 7Ss.

So you'll have 1 1/2 changes' worth.

Look a bit 'gappy' but a photo ain't a feeler gauge.