![]() Attach the spark plug extractor carefully.It’s vital that you allow the penetrant to sit for at least an hour and don’t be afraid to soak the spark plug to ensure it works. Use penetrant fluid such as standard WD-40 or a specialist penetrant such as Kano AeroKroil ( Link).5 Tips For Successfully Extracting A Stripped Spark Plug Before you fit the a new spark plug, clean around the opening ensuring that nothing falls into the top of the engine. Once the spark plus has been removed use a torch to inspect the spark plug socket in the cylinder head for damage. Take your time, and keep turning the spark plug until is is completely unscrewed. Once the spark plug has loosened from the cylinder block, then continue to turn the wrench slowly in an anti-clockwise direction whilst applying even pressure. This first turn of the wrench will allow the extractor flute to grip the spark plug and it’s important that it sits square and pushed down as far as possible onto the spark plug. Gently apply a direct downward pressure whilst turning the wrench slowly anti-clockwise. Now attach the wrench handle to the top of the extension bar. Slowly Try To Turn The Tool Anti-Clockwise Try to stand directly over the spark plug so that you naturally apply direct downward pressure and not sideways pressure that may cause the spark plug to snap. Locate the top of the spark plug and push the extractor socket gently on to the top of it. You will need the extension bar so that the extractor can reach down to the spark plug and to allow you to attach it correctly. Most spark plugs require a 5/8″ or 16mm socket for removal. Start by attaching the correct sized extractor tool to an extension bar. It’s vital that the tool is attached properly so as not to break the spark plug. The next step is to correctly attach the extractor tool to the top part of the spark plug. If you really want to increase your chances of successfully removing the spark plug, then I’d suggest leaving the penetrant fluid applied for at least 4-6 hours or even overnight. Leave the penetrant to do its job for at least an hour. ![]() Spray lots of penetrant (WD-40 works just fine) around the base of the spark plug where it meets the cylinder head. This is probably the most important step in the entire process. If you have a portable vacuum cleaner with a narrow head you can use this to remove any lose dirt.ĭon’t be tempted to use a blower or power washer as this will damage the spark plugs and nearby engine parts. Using a slightly damp cloth, gently wipe around the the spark plug to remove any loose debris. Clean The Area Around The Stripped Spark Plug Make sure you mark each spark plug wire as you remove them so that you can reconnect them correctly later. It’s also a good idea to move all of the spark plug wires to give more access to the spark plug pits. This is important to help ensure that the spark plug does not break. This will make it much easier to access the spark plugs and will ensure that you can hold the wrench at the correct angle and with the right amount of pressure. Remove Any Engine Coversīefore you start, remove as many engine covers and any nearby engine ancillaries such as the air filter box and hoses if they are in the way. Here is a description of the steps that should help you to remove any stripped spark plug successfully. When it comes to successfully removing stripped spark plugs, the secret is to take your time and be gentle. Here’s a video that illustrates how to remove a stripped spark plug with the Irwin bolt extractors. So far, I’ve had a 100% success rate with these extractors, and I’ve also used them to remove rusted sway bar bushings, so they’ve been well worth the investment. These extractors have reverse spiral flutes that are designed to grip the outside of the spark plug (or any nut) as you push down and turn on the wrench. The extractor set that I use are the Irwin Bolt Extractor Set For Deep Well Bolts (link to ). The two most important things that you will need are a bolt/nut extractor and some penetrant spray such as WD-40. If the plug breaks, leaving the bottom part in the cylinder head, it makes the job much more difficult. It’s important to use the right tool and correct procedure to remove a stripped spark plug. How To Remove A Stripped Spark Plug In 7 Easy Steps This is because spark plugs are often located at the back of the engine or deep down in hard to reach areas. Spark plugs are notorious for getting stuck and being difficult to remove, especially if they haven’t been replaced recently.Ī stripped spark plug can be difficult to grip with a pliers or standard socket wrench. How do you remove a stripped spark plug? The best way to remove a stripped spark plug is by using a special nut extractor socket that is designed to grip the stripped spark plug nut as you turn it. Removing a stripped spark plug is a delicate process that can easily go wrong if you’re not careful. ![]()
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