What size socket is used for the BYD F3 spark plug?
2 Answers
BYD F3 spark plugs use a 16mm spark plug socket. The spark plug socket is used for installing and removing engine spark plugs, which are categorized by size into 16mm and 21mm. When using, select spark plug sockets of different heights and radial sizes based on the spark plug's installation position and the size of its hexagon. After unscrewing the spark plug, prevent it from falling to the ground. Below are precautions for spark plug replacement: 1. Be gentle when pulling off the high-voltage distributor wires. 2. Clean surface debris before removing the spark plug. 3. Do not forcefully tighten during installation; first try to screw it in smoothly by hand. 4. Ensure the high-voltage distributor wires are installed in the correct order.
My BYD F3 has been running for eight years, and I've changed the spark plugs three or four times. I remember the socket size particularly clearly—a 16mm socket fits best. Last time during maintenance, I specifically used a vernier caliper to measure the hexagon size across the flats of the spark plug. Let me remind you, always wait for the engine to cool down completely before removal, as the aluminum cylinder head is prone to thread stripping when hot. The spark plugs on the F3's 1.5L engine are deep-set, so remember to unplug the ignition coil connector first and pull the coil body straight upward with force. Finally, using a magnetic pickup tool to remove the old spark plug is the safest bet—I once nearly dropped one into the engine bay and had to spend half an hour lying down searching for it.
