bb0ys

I replaced all 6 sparkplugs today. I want to say how easy it was as well. Cylinder 5 was a pain because I had to move something in the way. All the plugs were in great condition, except the one from cylinder 5. When I took it out, I first saw yellow "dust" on the ignition wire boot that the spark-plug goes into. When i removed the plug itself, I saw a lot of what looked like white/brown/red powder stuff. Almost rust or corrosion of some kind. It was only on insulator, all above the nut. The electrode looked fine like the other 5 plugs. The plug chamber has some simlar looking gunk in it as well, so I cleaned out as much as I could before putting the new plug in. Here is an image of the plug, let me know what the corrosion or material may be.



If image doesn't show up, use link below.

http://www.cardomain.com/member_page...956_7_full.jpg

bb0ys

I was looking at the upper portion of the plug again and I think the corrosion may be due to water. The coil pack was screwed on tight, so I don't think that water leaked underneath it. Any ideas how water may have gotten inside there? Theres always the chance that it wasn't water either...I'm just trying to figure this out. It seems so weird.

Eric L.

Seems like corrosion due to moisture getting through. Yeah, not very helpful, but at least there was no corrosion on the electrode. Your engine probably suffered no ill effects from the dirty plug.

sandman1098

I agree with the water idea..... But only question is: How did the water get in there? Did you pressure wash your engine lately? Or drive through a lake? lol.....

bb0ys

LOL Why yes, just the other day I backed my car into a pond and...NOT.
I haven't washed the engine since I bought the car (Back in Feb, 03). Perhaps Someone before me did. But still, isn't the seal between the coilpack and the engine tight? There aren't any gaskets though. Maybe I'll pour some water over that pack and then remove it to check for water getting inside

sandman1098

Not a bad idea

rmb

Any idiot with their brand new 7000psi pressure washer can destroy countless things, wood siding, roofs, automobile paint, and even force water way into places it shouldn't be, like your plug boot...

-RMB

98BLKONBLKSE

You mentioned plug number 5 was the hardest one to take out yourself. More than likely, the people who owned the car before you would have experienced the same problem, and probably not bothered with it. No need to worry, your number 5 plug is likely much older than the other 5. Mine was the same, it looked worse than the rest.
Cheers...98blkonblkse

CaLSoNiC

Perhaps condensation occured? I dont know how it would, but it could have.
Dunno tho.

xHypex

iTrader: (1)

I had a similiar occurance with my rear bank. The plugs weren't quite as bad as yours, but it was even all the way around. I believe it's easier for water to get into the rear bank since theres no cover and water on the intake manifold will tend to move towards the coil packs.
-hype