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  1. #1

    Join Date
    Aug 2008
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    Changing out motors

    I have a PK Trojan that I flew about 4 days a week, 3-4 times a day average last yr, yesterday on my second flight I noticed a squealing sound coming from the motor at full throttle. I landed the plane and took it home to check out, I pulled the cowl off to make sure nothing was rubbing, and it was'nt, the motor still had a squealing sound at full throttle. Im guessing the barrings are finally going out in the motor. I do have a motor and ESC from a PK FW190 which is almost new, the problem is the motors are a little different, the motor for the Trojan (part# PKZ4416) is a little smaller and the motor for the FW 190 ( part # PKZ5116) is a little longer, and heavier. The replacement motor for the Trojan is just over $40.00, so my question is should I try to put the motor from the FW190 on the Trojan, or would it be better to just buy the original replacement motor. My biggest concern is if I put the FW190 motor on the Trojan will it throw the ballance completely off? Any advice on this will be greatly appriciated.
    Paul

  2. #2

    Join Date
    Dec 2002
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    Chattanooga, TN
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    There are cheaper roughly equivalent motors to that PKZ4416... this one is an ounce lighter, $25 cheaper, but might be better: http://www.hobbyking.com/hobbyking/s...er_850kv_.html
    Dr Phil Millener, Chattanooga, TN

  3. #3

    Join Date
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    Thanks much for the info I greatly appriciate it. Im going to check on that motor now.
    paul

  4. #4
    Moderator aeajr's Avatar
    Join Date
    Jan 2003
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    Long Island, NY
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    Contact Horizon Hobby. The might replace the motor under warranty.
    Long Island Silent Flyers
    www.lisf.org
    Eastern Soaring League
    www.flyesl.com


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