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spark plugs

  1. Servicing Spark plugs 1.8

    Engines and Transmission (8G)
    I have the R18A2 engine and got NGK IZFR6K-11S spark plugs for it (these are already gapped properly i think?). I know the recommened torque is 18Nm but I don't have a torque wrench. So I plan on hand tightening it before turning it with a wrench. But how much should I turn it with the wrench?