fowled plugs - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

71ford · 04-10-2006, 00:13

Hey, was wondering if there might be anyother reason for fowled plugs other that running rich? Took mine out the other day, and there was that much crap on them...... it should have only been tuned a few months ago aswell.....

northey · 04-10-2006, 02:34

Quote:

Originally Posted by 71ford

Hey, was wondering if there might be anyother reason for fowled plugs other that running rich? Took mine out the other day, and there was that much crap on them...... it should have only been tuned a few months ago aswell.....

are they black with oil or just dark with too much carbon?

garth04 · 04-10-2006, 02:39

Or do they have a white crusty build up?

71ford · 04-10-2006, 03:32

bit of both actually, lol. white crusty build up, covered by carbon and then bit of oil on the thread????

garth04 · 04-11-2006, 02:14

If the white crusty is large it sounds like those plugs have been in there some time

71ford · 04-11-2006, 02:38

removed 4 months ago, but there was only 1 plug that had heads of the crusty stuff on it, all the rest just black and gunky

garth04 · 04-11-2006, 04:21

what brand of plugs r u using, and their part number

71ford · 04-11-2006, 04:24

the standard bosch ones i believe of the top of my head, will post for sure tomorrow, along with the part number

garth04 · 04-11-2006, 04:28

may have to change to NGK brand, are better plug I found for 6 cyl, plus have better heat ranges

71ford · 04-11-2006, 04:40

am planning on changing them next week, explain the heat ranges if you could?