90% Spark Plug Quality Problems are Caused by Improper Installation Results

Too Small Installation Torque

Sleeve Skew of Spark Plug

Sleeve Skew of Spark Plug

Too Large Installation Torque

Too Large Installation Torque

Special Installation Tool for Spark Plug

Using brute force to install the spark plug will bring hidden dangers when installing a new spark plug. Only using the special installation tool for spark plug can ensure to install the spark plug correctly.

Usage Method of Torque Wrench

Step 1: Pull ring-pull down to adjust the torque value. Step 2: Turn the blue handle clockwise to adjust the torque value, (the 0 scale is aligned with 25, indicating 25N · m)  Step 3: Pull up ring-pull to lock torque

Torque wrench with Cardan joint shall be used by bent ignition coil.

Disassembly Method of Spark Plug

Step 1 : Open the dust cover with a tool.

Disassembly Method of Spark Plug

Step 2 : Use an air gun to blow out the dust in the cylinder head first to prevent the dust from entering the cylinder when the spark plug is taken out. 

Disassembly Method of Spark Plug

Step 3: Disassembly the ignition coil plug and ignition coil in sequence.

Disassembly Method of Spark Plug

Step 4 : Use torque wrench to loosen the spark plug, then use torque wrench to suck out the spark plug.

Spark Plug Installed by Rubber Rod

Disassembly Method of Spark Plug

Step 5 : The spark plug sleeve must be tightened by hand first, and the torque cannot be applied at the beginning, which shall be set the torque value according to the standard torque of spark plug, use torque wrench to tighten the spark plug, until torque wrench makes a click sound, and repeat the click sound for three times, indicating that it is tightened.

Disassembly Method of Spark Plug

Step 6: Get the ignition coil in place and secure it. Install the hood correctly and return to the starting position.