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Thread: EGT questions

  1. #1
    924549's Avatar
    Join Date
    Mar 2009
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    Prince George B.C.
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    Default EGT questions

    I have a 582 grayhead. My egt has always stayed 1100-1150 at 5800 to 6000rpm. Today I went out for 30 minute flight and noticed a change. My egt stayed around 1200-1250. This is the first cold flight this year and not sure what to look for if anything. I was flying at 3500ft, 6000rpm, 165 deg water temp and outside air temp was -14c. When I dropped the rpm down to 3000-3500 on approach the egt dropped to 900. I have flown a dozen winters now have not noticed this before. Any comments and thoughts on this would be appreciated.

    Pieter
    Pieter
    Kitox IV 1050
    582 70" IVO IFA

  2. #2
    Super Moderator Av8r3400's Avatar
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    Jan 2009
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    Merrill, WI
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    Default Re: EGT questions

    Colder air is more dense, adding more oxygen to the mixture, leaning it out which causes the EGT to rise.

    This is why people often go to a richer jetting or needle position in winter weather.
    Av8r3400
    Kitfox Model IV
    The Mangy Fox
    912UL 105hp Zipper
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