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Thread: DIY Guide: Changing Spark Plugs

  1. #1
    TEAM Member HEDBNGR's Avatar
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    Post DIY Guide: Changing Spark Plugs

    I've decided to take pics and make easy guides as I upgrade and make changes to my car. The pics were taken with my camera phone so they aren't as sharp as can be. This is the first time changing my spark plugs so if anyone has additional advise please comment and I'll adjust the original post as needed.

    Engine: Duratec 2.0L
    Difficulty: Easy
    Time: < 20 min
    Plugs Used: Copper Autolite 104's with .055 gap
    Tools: Socket Wrench, 5/8 deep socket (16mm), 5/16 socket (8mm), 3 to 4 inch socket extension, needle nose pliers (used to pull out spark plugs)




    Step 1: Clean off engine area to free it from any loose dirt that could fall into the plug holes (I realized I should have done this after I saw some leaves in the way >.>).

    Step 2: Using the 5/16 socket remove the screws holding the spark plug boot in place. Also remove the wires that are connected to the boot.


    Step 3: Remove the boot by making a twisting motion. Do not rock the boot side to side.


    Step 4: Using the 5/8 deep socket and extension loosen the spark plug. Be sure to turn counter-clockwise and do your best to keep the socket steady. At first, use gentle pressure when unscrewing to ensure you don't crack or break the plug (I hear this is bad ).


    Step 5: Use the needle nose pliers to grab hold of the spark plug and remove from the hole.

    Step 6: Use Anti-Seize on the threads and dielectric grease on the boot so you secure the spark plug nicely. Make a scraping motion across the threads as you gently squeeze the Anti-Seize on the threads.


    With Anti-Seize applied:


    Finally: Place the spark plug back in the hole and tighten using the 5/8 deep socket. Be sure the plug is nice and snug but don't over tighten. Remember, it's not a bolt or a nut, so you don't want to use too much force and risk cracking or breaking the spark plug. Replace the boot and twist it on for a secure fit. Reconnect the wires and screw it back down.

    You're Done!
    Last edited by HEDBNGR; Oct 6, 2009 at 12:30 AM. Reason: Added MM conversion for Socket Sizes
    redorchestra likes this.
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  2. #2
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    Default Re: DIY Guide: Changing Spark Plugs

    Thanks for taking the time to do a write up. But i use a 8mm socket to remove the mounting bolts for the coil.
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  3. #3
    TEAM Member HEDBNGR's Avatar
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    Default Re: DIY Guide: Changing Spark Plugs

    Quote Originally Posted by 247_racing_zx3 View Post
    Thanks for taking the time to do a write up. But i use a 8mm socket to remove the mounting bolts for the coil.
    Thanks. I've added the millimeter equivalent (or closest one).
    '06 Black ZX3 ~ The Ford of Evils Bane Build Thread
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  4. #4
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    Default Re: DIY Guide: Changing Spark Plugs

    you dont need to take the plug off the COP.

    8mm is correct
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  5. #5
    Junior Member bigsheep's Avatar
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    Default Re: DIY Guide: Changing Spark Plugs

    Does anyone want to chime in about putting some dielectric grease up in the boot / coil?

  6. #6
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    Default Re: DIY Guide: Changing Spark Plugs

    eh not needed but doesnt hurt...
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  7. #7
    Egz
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    Default Re: DIY Guide: Changing Spark Plugs

    I always put grease in the boots.

  8. #8
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    Default Re: DIY Guide: Changing Spark Plugs

    Quote Originally Posted by Egz View Post
    I always put grease in the boots.
    So do I. A little preventive maintenance will pay off the first time you wish you had.
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  9. #9
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    Default Re: DIY Guide: Changing Spark Plugs

    So the only grease you should use for this is dielectric grease?
    What is a good brand of this stuff?

  10. #10
    Egz
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    Default Re: DIY Guide: Changing Spark Plugs

    Yes, dielectric grease is the only stuff you should use. Brand doesn't matter.

  11. #11
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    Default Re: DIY Guide: Changing Spark Plugs

    Right on thanks..
    I changed my plugs for the first time on my 2009.. Put in Autolite 104's. There was actually a lot of grease in the boot still so I didn't grease it that time. But I plan to do it on the next change.

  12. #12
    Senior TEAM Member PR1ME's Avatar
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    Default Re: DIY Guide: Changing Spark Plugs

    My little trick when changing plugs is to have a little chunk of rubber hose that fits snuggly over the spark plug, instead of the needle nose pliers.
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    TEAM Member SVTDuck's Avatar
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    Default Re: DIY Guide: Changing Spark Plugs

    Quote Originally Posted by bigsheep View Post
    Does anyone want to chime in about putting some dielectric grease up in the boot / coil?
    I always do.
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  14. #14
    TEAM Member SVTDuck's Avatar
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    Default Re: DIY Guide: Changing Spark Plugs

    I good spark plug socket has a rubber insert to grab the spark plug. It also is the right depth and will help keep you from breaking the ceramic.
    03 FSP ZX3 Duratec 2.3
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  15. #15
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    Default Re: DIY Guide: Changing Spark Plugs

    Quote Originally Posted by SVTDuck View Post
    I good spark plug socket has a rubber insert to grab the spark plug. It also is the right depth and will help keep you from breaking the ceramic.
    X2.

    I always use dielectric grease as well.
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