Took out the plugs in suspision of running rich. Well, its not running rich but to me it doesnt look normal. They look a little on the lean side....what do you think? Also those brown little hairs got me thinking...............what you think?

or

 

i think those look pretty normal. can anybody confirm this?

David

 

so no indigestion for my car?

Excellent.

Makes me wonder why i get so much black powder on my exaust

 

kinda look a little on the lean side to me

 

looks like normal wear and tear to me. you can check on DENSO's website they show you pictures and wear indicators.

 

Normal color and wear and tear from denso...looks pretty much like mine. Hmmm, cant figure out why i got all that black smoke and powder out the exaust...could it be the cat is going bad?

 

looks lean.....

the **** out the exhaust is likely blow by...... judging by what you say it looks like

 

Not even close to being lean.... Alittle dark for my tast, and I dont like them white specks. Detonation, or pre-ignition maybe..Cant really tell in them picks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cottonwoodz &raquo;</TD></TR><TR><TD CLASS="quote">Not even close to being lean.... Alittle dark for my tast, and I dont like them white specks. Detonation, or pre-ignition maybe..Cant really tell in them picks</TD></TR></TABLE>

I think those "specks" may just be from having the carbon wiped off by accident.

Looks normal to me. I would also say that the black stuff on the bumper is prob. from blowby, not running lean.

 

What do you mean blow by? I hope you dont think its oil

 

blow by is blow by........ its whatever seeps through the combustion chamber..... he said he had smoke etc..... so its likely blowby..... if it was oil, i would of suggested that he was burning oil

 

Sparkplugs can only be correctly read if the car has been shut down immediately at the end of a run without driving it back. Idling will muffle your reading. When i used to race, i put fresh plugs, take it for a run. when engine was at 3000 rpms, would cut the engine. Coast to the side of the track and read the sparky out right away.

Also, the pump gas now available blurs sparkplugs even more. If you are trying to evaluate the operation condition of your motor using the sparkplugs, you should at least use a magnifying lens to properly look at them..

So here is my opinion on your plugs for what it is worth.

1. the porcelain looks chalky = normal

2. middle part of the porcelain is light in color = normal

3. I can't see inside where the porcelain meets the metal, but if you see an tiny oily line, that means you are burning oil.

BTW If you think you are running lean or rich, look inside the end of your exhaust pipe. oily film = burning oil, black = too rich, light gray = lean, charcoal = normal

4.Now look for timing. The ignition timing can be checked by looking at the color of the plug’s ground strap and the position of the change in color on the strap. As the temperature increases the line moves further down the bar away from the torch.
Normally,that line should be at the bend. so yours look normal

5. The round flat circular area of the plug at the end the threads should be dark gray or flat black and should not be sooty. If it is sooty then it can mean that your plug has not been tightened enough and you are sucking and blowing fuel and air past the threads of the plug.

6. If you see black spots on the porcelain and you know the tune-up is correct then you may need a colder plug. If you hold the plug in the sun and you see what appears to be small diamonds on the porcelain then your detonation is severe enough to be blowing off the aluminum from your piston and you need to add fuel and/or take out timing now.

fs

 

Cool, thanks for your info. Glad to see my plugs look good.