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NA Miata Spark Plug Socket Size & Replacement Guide

    NA Miata Spark Plug Socket Size

    Overview

    The NA Miata, also known as the first-generation Mazda MX-5, is a popular sports car that has gained a loyal following over the years. One common maintenance task for NA Miata owners is changing the spark plugs. To successfully replace the spark plugs, it is important to have the correct socket size. In this article, we will discuss the spark plug socket size for the NA Miata and provide you with the information you need to complete this task.

    Spark Plug Socket Size Chart

    To make it easier for you to identify the correct spark plug socket size for your NA Miata, we have created the following chart:

    Year Engine Socket Size
    1990-1993 1.6L 16mm
    1994-1997 1.8L 16mm

    Steps to Replace Spark Plugs in NA Miata

    If you need to replace the spark plugs in your NA Miata, follow these steps:

    1. Ensure the engine is cool before starting any work.
    2. Locate the spark plug wires on top of the engine. They are connected to the spark plugs.
    3. Using a spark plug wire puller or a gentle twisting motion, disconnect the spark plug wires from the spark plugs.
    4. Once the spark plug wires are removed, use the appropriate spark plug socket and a ratchet to loosen and remove the old spark plugs.
    5. Inspect the old spark plugs for signs of wear or damage. If necessary, replace them with new ones.
    6. Apply a small amount of anti-seize compound to the threads of the new spark plugs to prevent them from seizing in the engine.
    7. Insert the new spark plugs into the engine and tighten them by hand until they are snug.
    8. Using the spark plug socket and ratchet, give each spark plug a final tightening of about 1/8 to 1/4 turn.
    9. Reconnect the spark plug wires to the appropriate spark plugs, ensuring they are securely attached.
    10. Repeat the above steps for each spark plug in your NA Miata.

    Conclusion

    Knowing the correct spark plug socket size for your NA Miata is essential for a successful spark plug replacement. By following the steps outlined in this article, you can confidently change the spark plugs in your NA Miata and keep it running smoothly. Remember to always consult your vehicle’s manual for specific instructions and torque specifications. Happy wrenching!