Dynasty L4-153 2.5L SOHC VIN K TBI (1992)
Spark Plug: Testing and Inspection
Broken, Cracked or Chipped Insulator
Chipped Electrode Insulator
Note:
Replace any spark plugs which have cracked broken or chipped insulators.
Symptoms: Insulator chipped or broken.
Possible Causes:
^ Usually results from bending the center electrode while adjusting the spark plug electrode gap.
^ Severe detonation also can separate the insulator from the center electrode.
^ Sudden Rise In Tip Temperature.
^ Severe Operating Conditions.
^ Improper Gapping Of Plugs.
Brown to Gray/Tan Color - Normal Operating Condition
DESCRIPTION:
Brown to greyish-tan deposits and slight electrode wear.
POSSIBLE CAUSE
ACTION
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Normal wear
^ Clean, regap, and install, if wear is not excessive
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Dry, Fluffy Black Deposits - Cold or Carbon Fouling
Normal Operation And Carbon Fouling
Symptoms: Dry, black deposits on the electrodes.
