spark plug question

Post by **Gaelen** » Fri Oct 18, 2002 10:59 am

I was wondering what a spark plug should look like if it is still in good shape when I take it out of my engine. I took one of them out and it was completely black on the end. Is this ok or should I replace them, also If I should replace them then what should I replace it with??

Post by **deds280zxturbo** » Fri Oct 18, 2002 10:59 am

that does'nt sound so good you should probably replace those......how long has it been since you have changed them?

Post by **Gaelen** » Fri Oct 18, 2002 10:59 am

I bought the car in july so I don't know when they were replaced last. I think i will replace them soon

Post by **drjohn** » Fri Oct 18, 2002 10:59 am

If the engine has been run and is fully warmed up and the white center is black then it maybe running rich. Some black on the ground electrode is normal. If not sure when last replaced, replace them. Use NGK plugs they run the best in Nissans.

spark plug question

spark plug question

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