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Author Topic:   White plugs
iowa_dirt_track_girl
Member
posted May 18, 2004 11:19 PM
what besdies timming and fuel afect the color of plugs is there anything else???


Raz_900
Member
posted May 19, 2004 10:10 AM
Heat.

If a plug gets to hot it'll glaze

juliaferrell
Member
posted May 19, 2004 11:47 AM
also if your getting oil from blow by, or antifreeze.


akadirtracer7
Member
posted May 19, 2004 12:21 PM
av gas can make them white.


hughes
Member
posted May 25, 2004 01:22 PM
too hot of a plug, also


udecide66
Member
posted May 25, 2004 08:48 PM
The first thing I would look at is the air/fuel mixture, assuming you do not have over 34* timing overall.
a white plug usally means too lean, need to go with bigger jets.
To high of a heat range for a plug (the plug is hotter) would be detectable by small black specks all over the porcelan. In other words the porcelan got to hot and started to boil the surface of the plug. if this happens drop down to a colder heat range (only one step at a time)
oil, anti-freeze, water or any other contaminant would foul the plug and it would be noticable by being dark in color and sometimes wet. In other words the plug did not spark enough to ignite all of the fuel causing raw fuel being pushed out the exhaust.


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