What Are the Solutions for a Spark Plug That Cannot Be Removed?

[LorenzoMarie]

The solutions for a spark plug that cannot be removed are: 1. Welding Method: Weld a thin, long iron bolt onto the broken spark plug head, allowing the broken spark plug to be removed; 2. Reverse Thread Tool: Use a reverse thread tool to tap threads inside the broken spark plug head, then turn the tool to extract the broken head. Types of spark plugs include: 1. Standard Spark Plug; 2. Insulator Projection Spark Plug; 3. Electrode Spark Plug; 4. Seat Spark Plug; 5. Pole Spark Plug; 6. Surface Jump Spark Plug. Common spark plug faults include: 1. Spark Plug Leakage; 2. Black Deposits on the Spark Plug Electrode; 3. Insulator Top Cracking; 4. Oil Buildup on the Spark Plug; 5. Spark Plug Erosion; 6. Excessive Spark Plug Gap.