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Thread: Spark plugs

  1. #1
    Junior Member Craig R's Avatar
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    Default Spark plugs

    The manual says gap to 0.032 to 0.040. Can I confirm the range is correct for DENSO IK27 5312 PLUGS in a 2022 CC363i?
    Craig R
    Gerridae FX3 on PK 2050A Amphib Floats

  2. #2
    Senior Member Andy's Avatar
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    Default Re: Spark plugs

    Quote Originally Posted by Craig R View Post
    The manual says gap to 0.032 to 0.040. Can I confirm the range is correct for DENSO IK27 5312 PLUGS in a 2022 CC363i?
    According to Rock Auto new IK27 plugs are gapped at 0.8 mm (0.0315 inch but no tolerance specified).

    Lightspeed says this -

    "LSE Spark Plug Gap Specifications

    Engines normally timed at 25 degrees BTDC:
    These are typically engines with compression ratios less than 8.7:1. Gap spark plugs
    fired by the CDI to .032", max wear limit is .040".

    I ran my first set for 2 years in a 2020 FX-3 and the largest gap was 0.036 when I replaced them. Second set all under 0.035 after first year of use.

    I doubt I'll ever run a set of IK27 plugs long enough that the gaps need to be changed.
    Last edited by Andy; 06-18-2023 at 02:19 PM.

  3. #3
    Administrator Pete D's Avatar
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    Default Re: Spark plugs

    Quote Originally Posted by Craig R View Post
    The manual says gap to 0.032 to 0.040. Can I confirm the range is correct for DENSO IK27 5312 PLUGS in a 2022 CC363i?
    That is correct.
    Pete Dougherty
    Customer Support Manager
    Cub Crafters Inc

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