Colour Of Spark Plugs. Race Gas and Orange Spark Plugs YouTube Look for light grey or tan metal on a good spark plug Red is a sign of iron particles or rust in the fuel system
AC spark plug application chart. from www.oldclassiccar.co.uk
Dark coloring, such as heavy black wet or dry deposits, can indicate an overly rich condition, too cold a heat range spark plug, a possible vacuum leak, low compression, overly retarded timing or too. On the contrary, a light blue or white spark is very strong and needs electric juice to travel across the plug gaps even under pressure in the combustion chamber.
AC spark plug application chart.
If you purchased new spark plugs, their colors should be fairly similar By analyzing the condition of a spark plug, mechanics and automotive enthusiasts can gain valuable insights into the health of the engine and its performance Dark coloring, such as heavy black wet or dry deposits, can indicate an overly rich condition, too cold a heat range spark plug, a possible vacuum leak, low compression, overly retarded timing or too.
Understand How To Read The Spark Plug Color. One particular phenomenon that often raises questions is the appearance of a red color on spark plugs or reddish tint on the spark plug tips. Use the correct type and gap specification of spark plugs for your engine
AC spark plug application chart.. A fouled or bad spark plug is a plug that has become covered with a substance like oil, fuel, or carbon or one that is blistered from running too hot Look at end of the spark plug that was in the cylinder and examine it