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-   -   Oil fouled spark plugs!! (https://www.rx7club.com/1st-generation-specific-1979-1985-18/oil-fouled-spark-plugs-283140/)

Nut Job 03-15-04 05:51 PM

Oil fouled spark plugs!!
 
Ok the situation is this: After i run my car for about 20 minutes or so (thats idleing) my plugs get all fouled and wet from oil and my car starts misfireing. I cant drive it out on the road so i can only idle and rev. So now that is the symptom......what is the problem? And solution if there is any?

PS I have the hottest plug i think...the NGK BR7EQ14. But the plugs are quite old. Just throwin that out there

PSS it is an 82 12a engine

BigJim 03-15-04 06:20 PM

year and engine?

abeomid 03-15-04 06:22 PM

Is the car smoking at all? What color if it is?

Lotus00 03-15-04 06:25 PM

bad side seals? How many miles are on the engine?

A while back I noticed my spark plugs were coated in oil, and the car ran rough. I took it out and drove it really hard a couple of times and after that the problem went away. Im guessing it was carbon build up on the side seals, causing them to stick.

You could try decarbonising it (the sticky at the top of the page), that might help.

Edit: Just read your edit, you should replace the spark plugs first. If they are really old your car will run like crap. (I had 20,000 miles on my old plugs and the car wouldnt even start anymore :eek: )

Nut Job 03-15-04 06:50 PM

It does smoke a little at startup......its blue smoke and it lasts for a couple minutes. Does that help?

Fuel524 03-15-04 10:13 PM

yes i have the exact same problem as well, also i had the exact same thing happen to me around the time the decarbonizing thread was posted so i did the water mist thing after checking my plugs ( new not even 3 weeks old) and they were wet and black and misfiring after the decarbonizing with water i havent had the problem, also as soon as i noticed it wasnt missin i dogged the shit out of it acouple times. also i had a lil too much premix i think . causing the plugs to be wet looking. hope this works 4 u

abeomid 03-15-04 11:28 PM

Yeah seems like ur side seals are either dead or carbonized. Just as everyone said already use the decarbonizing thread on top of the forums and hopefully that will fix the problem.


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