I had a web page saved of all the different colors and looks of plugs under diferent situations, but I can't seem to find it. It showed what plugs looked like if your car was burning oil, running hot, ect. ect. Anyone have a good link??

 

Your plugs should have a brownish/gray/carbon color. They should still have the factory gap, and the electrode tip should be sharp (if you're talking about NGK plugs). If the plugs are sooty, have lots of carbon build up, then your running to rich and possibly not getting good ignition. If they are wet with oil, then you're getting cylinder ring blow-by. If they are whitish and the electrodes look slightly melted, then you're running dangerously lean. If the electrode prong is bent towards the electrode, then your piston slapped the plug (rare).


Dave

 

Thanks Just found a link with some pictures too. Not as good as my old one, but it isn't too bad...

http://www.atlanticjetsports.com/_techtalk/00000005.htm

*edit* added link

 

Almost any Chilton's manual should also have a bunch of pictures similar to that webpage (good link, btw). At least they used to (have them in colour).

 

woah weird.... i was just chatting with my brother about my spark plugs and how i wouldn't mind changing them... hmm.. neat

uhm curious... the NGK sparkplugs, can you pick those up anywhere?
i've never actually picked some up before.

I was doing a search where i people mentionned boshe is terrible, so is champion. and everyone recommends NGK's.

Thanks.

 

Just get them from the closest Nissan Dealer to ya.

SuDZ

 

The answer to all these questions may be found here if you feel like actually doing something....



http://forums.maxima.org/showthread....threadid=45742

 

hehe uhm, scary but they are 19$ (a pair?) at the dealership in my area...
yikes!!!!! i check at canadian tire.... they only have 3rd gen sparkplugs.

looks like i'm getting them from nissan...

 

And the said thing is that I have read that entire thread before I forgot those links for plug colors were there

oups lol

 

On the back page of every Haynes repair manual (for any car) there is a color comparison of spark plugs. Best resource I can think of for what you are asking for.

 

Diagnosing Spark Plugs