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  1. 05-07-2009, 11:02 AM #1
    NV Stig
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    Gneurling piston skirts..

    Have you guys heard about this gneurling procedure? You make cross cuts on the piston skirts to help enhance the piston oil scavenging capability, and significantly enhances the life of the engine. Apparantly it became a Porsche SOP in the late 70's at some point.
    That is so cool. I ask a lot of stupid questions, and was amazed such a little thing could do so much. I apologize if I'm the last one in this group to know about this, but thought it was cool and wanted to pass it along if you are working on your air cooled engines.
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