Reading spark plugs?
 

Swapped out the plugs hoping to cure an intermittent misfire under odd load conditions. They had around 13,000 on them but look a little strange to me:

http://jugrnot.com/IMG_9945.jpg

Anyone care to give it a shot?

Too lean?

Agreed, it looks like they're on the lean side. White=lean, black= rich, tan=pretty good air-fuel mix.

I'd guess you're having ignition trouble cuz the plugs are not in the car.

That's a lotta gap.

+1 what is the gap measure it

.045"

Gapped the new ones at like .035.

Hard to understand why they'd be reading lean with how rich my maps been running..

Holy shit. Gap them to .020". 0.045 is more than factory, and your boosting?

I wish. My turbo is still sitting on my desk :mad:

Whats also a little strange to me.. IIRC when I installed those plugs they were gapped at .030... :crx:

if you have a caliper, measure the gap tool. I've never found a gap tool that was accurate. They're all machined accurately, then chrome plated with ~.001" of chrome on both sides. So they read ~.002" lower than what the number says. Minimal, but none the less...

My turbo's staring at me too. :)

I don't have a plug gap tool, just a feeler gauge.

Turbos don't do too much good on a desk, eh? :(

LOL, turbo sitting on my desk too.

While not as fun as actually boosting, I find it quite therapeutic to sit at my desk and run through the gears whilst producing appropriate turbo sound effects. :)

:bowrofl:

Glad I'm not the only one in OP crazy.. :cool:

Though, I often find myself driving my Protege down the freeway making crotchrocket noises.. ;)

the color looks good, but thats a ton of build-up for 13k. is it using any coolant or oil?