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Thread: Coolant Overflow Bottle?

  1. #1
    rawheels's Avatar
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    Default Coolant Overflow Bottle?

    Has anyone replaced the coolant overflow bottle? What was the replacement? I ordered a 250ml bottle on Amazon, but it is slightly too big in diameter for the bracket and the nozzle is a smaller ID too.

    BTW, I am looking because I had a similar experience to what @Wheels had here: https://teamkitfox.com/Forums/thread...t=coolant+leak

    I still had some tape on my radiator from winter ops, because I haven't figured out what the right amounts are yet. However, for some reason I thought it was time to test out the climb rates on the new 912/IV set-up. When I pitched up for Vx I started seeing white smoke. I quickly landed and removed the top cowl and saw that the overflow bottle had popped and sprayed coolant over the cylinders.

  2. #2
    Senior Member efwd's Avatar
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    Default Re: Coolant Overflow Bottle?

    The ROTAX 922-327

    912iS has this part number. It is certainly available through Kitfox I would think. California Power Systems has it as well. Not inexpensive considering what it is.
    Eddie Forward
    Flying
    SS7, 912iS, Garmin G3X

  3. #3
    rawheels's Avatar
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    Default Re: Coolant Overflow Bottle?

    Thanks Eddie, but I'm flying the IV which uses a medical wash bottle. The other is probably better, but $80 vs $5 is pretty hard to swallow and I don't think there is room for it on the firewall.

    bottle.jpg

  4. #4
    Senior Member Dusty's Avatar
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    Default Re: Coolant Overflow Bottle?

    I used an aluminium drink bottle. Try relocating the original mount lower on the firewall. There is a specific size tank recommended on a rotax site? My original tank warped from the heat and was barely big enough.

  5. #5
    Spook712's Avatar
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    Default Re: Coolant Overflow Bottle?

    I used this one, works fine for me!


    Gesendet von iPhone mit Tapatalk

  6. #6

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    Default Re: Coolant Overflow Bottle?

    amazing prices, only 175% higher than other suppliers .. there must be something available in north america ... thanks for the failure story, I wanted a new bottle for my project but of course, rotax marks things up even more than amazon, purchase hesitancy strikes again ...

  7. #7
    Super Moderator Av8r3400's Avatar
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    Default Re: Coolant Overflow Bottle?

    I have used this in my last two planes.

    https://www.usplastic.com/catalog/it...1559&catid=934
    Av8r3400
    Kitfox Model IV
    The Mangy Fox
    912UL 105hp Zipper
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  8. #8
    rawheels's Avatar
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    Default Re: Coolant Overflow Bottle?

    Tried a couple of Amazon purchases, but neither fit. Spent $12 trying to avoid paying $22 from Kitfox. Now I have Kitfox P/N 49016.000 on it's way. Guess sometimes its better to just pay the 4x normal price.

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