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Thread: Leaking airmaster prop

  1. #1
    Monty's Avatar
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    St. Louis,, MO
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    Default Leaking airmaster prop

    I have a Airmaster CS prop on my Kitfox that has been leaking grease since new. I now have over 100 hours and still leaking grease. I was never able to get answers from anyone. I finally found buried on the Airmaster website they have just recently issued Service Bulletin APL-SB18 and have acknowledged this is an issue. If you are having the same issue you can get a larger O-ring from Airmaster to fix the problem according to the SB.
    Kitfox Model SS7 E-AB
    Airmaster CS
    G3X touch

    Rotax 912 IS
    Eastern Missouri

  2. #2
    Administrator DesertFox4's Avatar
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    Default Re: Leaking airmaster prop

    Hope that stops the messy prop issue Monty. I remember seeing a little grease on that prop after flying it.


    DesertFox4
    Admin.
    7 Super Sport
    912 ULS Tri-gear
    Ivo Prop

  3. #3
    Monty's Avatar
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    Default Re: Leaking airmaster prop

    Quote Originally Posted by DesertFox4 View Post
    Hope that stops the messy prop issue Monty. I remember seeing a little grease on that prop after flying it.
    Yes it has become worse not better. Have to remove the spinner every 3-4 hours and clean it. At least I have found the answer now. Now we will see how Airmaster responds.
    Kitfox Model SS7 E-AB
    Airmaster CS
    G3X touch

    Rotax 912 IS
    Eastern Missouri

  4. #4
    Senior Member kmach's Avatar
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    Cupar, SK, Canada CLC4 Loon Creek Airfield
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    Default Re: Leaking airmaster prop

    Is it the large o rings on the blade retention nuts going into the hub ?
    Kevin,

    Kitfox Outback
    912 ULS
    Airmaster AP332CTFH-WWR70W
    Summit Aircraft Wheel Skis
    C-FOXW

  5. #5
    Monty's Avatar
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    Default Re: Leaking airmaster prop

    Yes it is. The O Ring just under the large black retention ring.
    Kitfox Model SS7 E-AB
    Airmaster CS
    G3X touch

    Rotax 912 IS
    Eastern Missouri

  6. #6

    Join Date
    Nov 2013
    Location
    Boise, ID
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    182

    Default Re: Leaking airmaster prop

    Thanks for the heads up. Mine was leaking but I tightened to flange nuts thinking that was the issue. Iíll send them an email. I love that prop and theyíve been quick to answer.

  7. #7
    Monty's Avatar
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    Default Re: Leaking airmaster prop

    Let me know if you get an answer. They have only answered one of my e-mails. My question is How can I get 3 of the larger O rings ((PO414-232)? and will Airmaster pay for the repair. If you find out please let me know and I will do the same.
    Kitfox Model SS7 E-AB
    Airmaster CS
    G3X touch

    Rotax 912 IS
    Eastern Missouri

  8. #8

    Join Date
    Nov 2013
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    Boise, ID
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    182

    Default Re: Leaking airmaster prop

    Iíd personally just be happy to get the correct O-ring size. You should be pulling and greasing your blades yearly anyway but Iíll let you know.

  9. #9
    Monty's Avatar
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    Default Re: Leaking airmaster prop

    Yes I agree with that
    Kitfox Model SS7 E-AB
    Airmaster CS
    G3X touch

    Rotax 912 IS
    Eastern Missouri

  10. #10

    Join Date
    Nov 2013
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    Boise, ID
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    Default Re: Leaking airmaster prop

    Monty,

    Iíve been in contact with Airmaster. They are asking me to measure gaps on the hub. Did the new o-rings solve your issue and do you know of a stateside supplier?

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