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Thread: Spark Plug job on 540

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  1. 05-23-2007, 08:31 AM #1
    Jehu
    Jehu is offline 2 Grand Master
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    Default Spark Plug job on 540

    I bought Bosch coppers and a set a of valve cover gaskets expecting to change my plugs. Do these plugs require setting the gap and should I also buy new valve cover bolt washers or do these rarely show up bad? Also is it a must to use a Torque wrench and apply a certain force when tightening the new plugs or should a half a turn from snug or so be sufficient.
    Last edited by Jehu; 05-23-2007 at 09:59 AM.
    1995 540i Manual build 1/95
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