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Help with 3.4L Spark Plug Gap

Discussion in '1st Gen. Tacomas (1995-2004)' started by cclax2145, Oct 21, 2008.

  1. Jul 19, 2017 at 1:51 PM
    #21
    ThunderOne

    ThunderOne Well-Known Member

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    You can't use those. See my above post.
     
  2. Jul 19, 2017 at 10:04 PM
    #22
    Trapperr

    Trapperr Well-Known Member

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    I emailed them about the gap being .022 on each side. Here's the response...

    Hello,


    Thank you for your E-mail. The BKR5EKB-11 is gapped at 1.1mm or 0.044”. You cannot check the gap due to it is circular. If you use a feeler gauge it will not show the actual gap. This is the actual OE replacement spark plug for your vehicle and is pre-gapped and ready for installation.
     
  3. Jul 20, 2017 at 10:58 AM
    #23
    ThunderOne

    ThunderOne Well-Known Member

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    How will using a feeler gauge not show the actual gap??? Especially the one I pictured second?
     
    daryl lict likes this.
  4. Jul 20, 2017 at 11:41 AM
    #24
    daryl lict

    daryl lict Well-Known Member

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    $open diffs for life$
    i used to work at advanced auto parts. plugs are almost never right at spec, theyre usually close but i would always recommend that people gap them to make sure.
    if the gap is small, you might not burn all the air fuel mix in the cylinder causing increased emissions and if severe possibly worse gas milage.
    if the gap is too big the plug will heat up causing a hot spot and could possibly cause detonation or pre ignition which could also cause detonation.
     
  5. Jul 25, 2017 at 1:34 PM
    #25
    Laxtoy

    Laxtoy Dog is my backseat driver

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    Picture is worth a thousand words image.jpg to agree with Thunderone, disc style gapping tools don't work
     
  6. Dec 21, 2024 at 10:55 PM
    #26
    pcoonce

    pcoonce Member

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    The problem here is so many people write as if knowing the real specs. So many incorrect replies; many like to sound like they know what they are talking about, but they don't. I won't tell you your gap. You need to look it up in your manual. My 3.4L 2002 V6 requires 1.1mm or .043" gap with dual electrode plugs.
     
  7. Dec 21, 2024 at 11:05 PM
    #27
    Speedytech7

    Speedytech7 Toyota Cult Ombudsman

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    It's less Tacoma and more mod
    Fact of the matter is, this engine isn't picky at all, I've taken plugs that were working out with a .060 gap before from wear. If it's above .018 and below .050 it's probably going to run about the same. The dual electrode plugs for this engine come pre gapped anyway at .040 (actual measured, they claim .043) which is plenty fine. You can safely use the recommended dual ground strap plugs from Denso or NGK without owning a gapping tool. I gap my single strap plugs down to .028 for my turbo charged 5VZ and the coils have been living a happy life still.
     

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