How to Clean a Sparkplug

     If you are around engines much, spark plugs are no new topic to you. Often the cause of a engine that doesn't start, spark plugs should be regularly cleaned or replaced to keep your machine running smoothly. With a few simple tips, cleaning a spark plug should take no time at all. 

 

    Spark plugs are everywhere. Most fuel powered engines have at least one, so cleaning them is not too uncommon. Your spark plug will be located somewhere on your engine block, and to remove it, you'll need the right size socket and ratchet. While most spark plugs are the standard 5/8'' or 3/4'' there are a few odd sizes such as 7/8'', 11/16'', 9/16'', etc. Once you've removed the spark plug cover/connector, you can unscrew the plug in a counter-clockwise motion until loose. All spark plugs have positive threads. 

    A good way to tell if your plug needs to be replaces is by the color of the terminal and electrodes. The electrodes are at the end of the spark plug that is inserted into the engine. If they are black or rusted, they will need to be cleaned. The terminal doesn't go through combustion, so should, at worst only be rusted.

    To clean a spark plug, you will need a few common items: 

-WD-40 or some other oil such as PB-Blaster 

-A wire brush

-Emery Cloth or fine grit sandpaper 

- A clean towel or rag.

    First you should spray down the plug with your oil to loosen up any rust or corrosion. Then brush thoroughly until all debris has been removed. Lightly sand in between the side electrode and center electrode until you have removed any burnt gasoline or rust. Spray the spark plug one more time and wipe with a cloth until completely clean. Let oil dry before reinstalling. While not usual, you may need to replace a corroded or missing gasket. Rescrew tightly into the engine block.