How to get a stripped spark plug out?

How to get a stripped spark plug out?

Introduction

Removing a stripped spark plug can be a frustrating task for any car owner or mechanic. Whether it’s due to over-tightening or corrosion, a stripped spark plug can cause headaches and delays. In this article, we will explore various methods and techniques to safely and effectively remove a stripped spark plug, ensuring that you can get back on the road as quickly as possible.

Materials Needed

Before attempting to remove a stripped spark plug, gather the following materials:
– Socket wrench set
– Spark plug socket
– Penetrating oil (such as WD-40)
– Thread chaser or tap and die set
– Pliers or vice grips
– Safety goggles and gloves

Method 1: Using Penetrating Oil

Step 1: Start by spraying penetrating oil around the base of the stripped spark plug. Allow the oil to penetrate for at least 10-15 minutes to loosen any corrosion or rust.

Step 2: Attach a spark plug socket to a socket wrench and carefully place it over the spark plug. Apply steady pressure in a counterclockwise direction to loosen the plug. Be cautious not to apply excessive force, as it may worsen the situation.

Step 3: If the spark plug still won’t budge, try gently tapping the end of the socket wrench with a rubber mallet. The vibrations can help break up any remaining corrosion and make it easier to remove the plug.

Method 2: Using a Thread Chaser

Step 1: If the penetrating oil method doesn’t work, you can try using a thread chaser or tap and die set. These tools are designed to clean and repair damaged threads.

Step 2: Select a thread chaser or tap that matches the size and pitch of the spark plug threads. Carefully insert it into the spark plug hole and turn it in a counterclockwise direction. This will help clean the damaged threads and make it easier to remove the stripped spark plug.

Step 3: Once the threads are cleaned, use a spark plug socket and socket wrench to remove the spark plug. Apply steady pressure in a counterclockwise direction, ensuring that the socket is securely attached to the plug.

Method 3: Using Pliers or Vice Grips

Step 1: If the previous methods fail, you can try using pliers or vice grips to remove the stripped spark plug. This method is best suited for spark plugs with a protruding electrode.

Step 2: Carefully grip the exposed electrode with the pliers or vice grips. Apply steady pressure in a counterclockwise direction to loosen and remove the spark plug. Be cautious not to damage the electrode or surrounding components.

Conclusion

Removing a stripped spark plug can be a challenging task, but with the right tools and techniques, it is possible to overcome this obstacle. Start by using penetrating oil to loosen any corrosion, then proceed to more advanced methods such as thread chasers or pliers if necessary. Remember to exercise caution and avoid applying excessive force, as it can lead to further damage. If you’re unsure or uncomfortable with the process, it’s always best to consult a professional mechanic.

References

– www.popularmechanics.com
– www.cartalk.com
– www.doityourself.com