Wanted: Pics Of Your Spark Plugs

[Cubes]

Hi ppls,

If any one has recently done a set of sparkys and still has them laying around would you be so kind as to throw your digi camera in to macro mode and take a few snaps at various angles of the sparky, be sure to let me know what heat range they are, power your making and wot afr.

Thanks ppls

[Suspense]

change my sparkies 2day... will take sum pics if i can

[heslo]

Will probably be doing it this weekend if I get around to it. I'll be sure to take some pics if you want

[R33S2]

I pulled out these iridiums a while ago, they had done 30,000kms at 212kw, I posted them up att and got good feedback, i put them back in after a light clean and have done 10k kms since. They are gapped at .8 and a heat range of 7.

[The Dan]

Looks like you have some kind of ignition problem there Terry.

[Cubes]

Thanks for the pics..

Its really hard to check out the sparky's at such a distance.. Looks as if you've been running some kind of octane boost or fuel additive though.

What would be really nice is to throw your camera in macro mode (every digital camera has this function now) and take a nice close picture of the electrode/strap etc..

[Cubes]

Here's a few pics I had laying around in the bottom of my toolbox that were pulled out after the motor had been detonating a little..

They are a BCPR6E NGK plug.

I will clean them up with carby cleaner to see if I can tell if they were the correct heat range for the application. (by looking at the strap)

Apparently you can tell if a motors been detonating by looking at the center ceramic and looking for what looks like pepper. U know that ground black pepper, very small granuals. AND... I can't see it by the eye but in one pic you will see a shinny silver dot on one of the pictures, this is apparently a little bit of alloy from the piston and what not that sweats during detonation.

I tried to clean the center pics strap a little to see if I could see the heat marking. Apparently the colour should differ preferably before the elbow, if its well before or not at all then the plug is too cold, if its close to the weld then the plug is too hot.

Excessive black crap around the thread lip is a sign light load afr's are too rich. At wot it apparently doesn't have time to settle.

I Think..... Which is the reason for this thread. To learn.

[R33S2]

Looks like you have some kind of ignition problem there Terry.

And well you know that I did at the time! lol

No additives just BP ultimate.

[r33_racer]

Yeh i was taught, if its got silver specs then its detonating and they are aluminium particles. You should see like a light line down the shoulder of the return, sorta 3/4 down, if its too far down near the actual thread lip its running too hot, if its too far up near the start then its running too cold, so go figure inbetween would say its running ideal. So long as there is no detonation.

Good to see more then one person has the same idea of plug reading:)