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-   -   pics of my spark plugs, what does it mean? (https://www.rx8club.com/series-i-tech-garage-22/pics-my-spark-plugs-what-does-mean-136658/)

Jeromie 01-29-2008 02:30 PM

pics of my spark plugs, what does it mean?
 
what exactly does this mean? i know that the plugs can tell u a lil about how ur engine is running. i forgot what means what tho...
these plugs should only have about 15000 miles on them since i got the recall done.
i redline the car regularly, any ideas?

http://i57.photobucket.com/albums/g2...0121081754.jpg

dannobre 01-29-2008 02:42 PM

Bit of crap...but they aren't fouled or anything....I'd just put in a new set and don't worry about them.

I would suspect that you do a lot of city type driving????

Jeromie 01-29-2008 02:45 PM

eh.. i do some city driving... and yea i got new spark plugs, coils, and racing beat wires....

Juice 01-29-2008 03:00 PM

Typically white plugs usually mean you are running too lean. Black means too rich. A brown/tan color is what you want. Yours look about right for the mileage.

dannobre 01-29-2008 03:06 PM


Originally Posted by Jeromie (Post 2269136)
eh.. i do some city driving... and yea i got new spark plugs, coils, and racing beat wires....


Should be good to go...just be careful when installing the wires.......

either do them one at a time ( difficult to figure out which wire to use)

or label them..compare lengths...and install from the coil position....

FL FT RL RT from front to back :)

The rotor housings are marked by the plugs

Cheers

nycgps 01-29-2008 03:16 PM

you think yours look bad? Try to look at mine ! just posted yesterday.

diabolical1 01-29-2008 04:43 PM

they're not THAT bad. that's what mine looked like when i changed them a couple weeks ago. i do mostly highway driving and i don't redline my engine every chance i get simply because i'm out of pocket right now. i premix and do regular maintenance and my car runs fine - good power, decent mileage.

DarkBrew 01-29-2008 05:08 PM

Your plugs look good. (for a rotary)

Link to my plug thread

http://img140.imageshack.us/img140/3660/dsc00384uj0.jpg

Nubo 01-29-2008 05:17 PM

They look ok from what I can see. The most important thing is the color of the center insulator. Can't see it in all the plugs due to shadow, but the ones I can see are "tan" color, which is good. A little pinkish, which could be MTBE (gasoline additive) or maybe just the camera. The crusty stuff on the ends is mostly because our engines consume oil. Plugs pulled from a rotary will usually look gnarlier than from an equally healthy piston engine, due to those deposits. They don't hurt anything. Again, it's the center insulator that is the key. It's what keeps the spark jumping across the gap instead of back down inside the plug.

wwwnika 02-08-2008 04:03 PM

smell any gasoline?

ZoomZoomH 02-08-2008 04:28 PM

all these spark plug pic threads somehow reminds me of fortunetellers reading tea leaves, lol

Jedi54 02-08-2008 04:39 PM

brown is okay, black is bad. My leading plugs looked worse then 5,000 months after the recall work.


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