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Model specific boards => Golf mk2 => Topic started by: richard s on 11 November 2007, 16:02

Title: grey spark plugs
Post by: richard s on 11 November 2007, 16:02
have just checked my plugs and they have a light grey coating on them can anyone say what could be causing this cheers
Title: Re: grey spark plugs
Post by: rowlers on 11 November 2007, 17:42
Think thats good isn't it?

http://www.verrill.com/moto/sellingguide/sparkplugs/plugcolorchart.htm (http://www.verrill.com/moto/sellingguide/sparkplugs/plugcolorchart.htm)

better than mine, covered in black carbon and crap :undecided:
Title: Re: grey spark plugs
Post by: DarnPB on 11 November 2007, 20:25
Grey is good. Shows the engine tuning is correct. Shiny grey, not so good. Could be getting a little hot. Carbon black not so good. Burning too rich. Nothing a good tune will not sort out. Wet black, BAD. Either burning extremely rich or burning oil or a mixture of both.
Title: Re: grey spark plugs
Post by: richard s on 12 November 2007, 18:08
matt grey not shiny so if this is good im happy cheers