What are the consequences of oil leakage from spark plugs?
1 Answers
If oil leakage from spark plugs is not addressed, it can lead to poor ignition and abnormal engine operation. Steps to replace spark plugs: Open the hood, lift the plastic engine cover, remove the high-voltage distributor wires, and mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for external debris such as leaves or dust and ensure they are cleaned thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the removed high-voltage distributor wires in the firing order and secure the cover. Methods to determine if a spark plug is damaged: Remove the spark plug and observe its appearance to assess its condition. A normal spark plug's insulator skirt and electrodes should appear gray-white, gray-yellow, or light brown. A properly functioning spark plug will have a reddish-brown insulator skirt, with an electrode gap between 0.8-0.9mm and no signs of electrode burn. If the spark plug is coated with oil or deposits but is otherwise undamaged, it can be reused after cleaning off the oil and deposits. If the spark plug is severely damaged, showing signs like blistering, black streaks, cracks, or melted electrodes, the cause of the damage should be identified and rectified before replacing the spark plug. Additionally, if the spark plug appears black as if smoked, it indicates an incorrect heat range selection or a rich fuel mixture, possibly with oil seepage.
