Johan, "NORMAL-Grey-brown deposits, lightly coated core nose. Plugs ideally suited to engine, and engine is in good condition.," is the only reference to "brown" in the Champion Spark Plug brochure I have. Regards, Tom Hanlon Palm Springs, CA 84 Westfalia
Johan Nyberg wrote: > Hello all > > changed the plugs yesterday. The old ones (NGK BP6ET) are a nice > brick-brown colour. What can this tell me about the state of the > engine? My > repair and maintainance manual only gives different hues of gray, from > > sooty black to white, but no browns. > > ************************************************************ > Johan Nyberg, Sweden N 59o E 17o 25" > '86 Caravelle C > ************************************************************ |
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