Kitfox Aircraft Stick and Rudder Stein Air Grove Aircraft TCW Technologies Dynon Avionics AeroLED MGL Avionics Leading Edge Airfoils Desser EarthX Batteries Garmin G3X Touch
Page 1 of 3 123 LastLast
Results 1 to 10 of 22

Thread: 914 oil lines and fittings.

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Senior Member
    Join Date
    Nov 2017
    Location
    Bailey, CO
    Posts
    225

    Default 914 oil lines and fittings.

    Okay, I am stumped. Kitfox just sent me 3 of the 37 degree flared elbows for the oil lines. The instruction manual doesn’t show where the three fittings go (there is a picture, but it only shows one of them). There are two ports on the oil tank, one on the oil pump, and one at the bottom of the crankcase. I just spoke with Heather and she said they always ship 3 with the kits. So, considering that there are 4 connections to be made, where do the three elbows go? Is the remaining fitting a strait fitting with a 37 degree flare?

    Also, does anyone have any pictures and advice on the best routing for the oil lines? I will upload pictures when I get out to the garage and snap a few photos.

  2. #2
    Senior Member Esser's Avatar
    Join Date
    Jul 2011
    Location
    Edmonton, AB
    Posts
    2,048

    Default Re: 914 oil lines and fittings.

    OK, My oil tank already had finings so I'm not sure if I totally understand what you're talking about but I'll try to describe how my oil lines go. Off the sump is a flared fitting (Mine is 90deg)and it goes to my oil cooler. From my oil cooler it runs to a flared line going into the engine. Coming out of the engine is a banjo fitting and then it runs into a flared fitting going into the oil sump.
    ------------------
    Josh Esser
    Flying SS7
    Rotax 914iS
    AirMaster Prop

    Edmonton, AB, CWL3

  3. #3
    Senior Member efwd's Avatar
    Join Date
    Jun 2015
    Location
    Yorba Linda, CA
    Posts
    2,817

    Default Re: 914 oil lines and fittings.

    My EAA Tech Counselor, who happens to be my DAR also made me use fire sleeve. In fact, one of my sleeve was slightly short. He could see the hose itself, so he made me replace it. I used motor oil to slip them on.
    Eddie Forward
    Flying
    SS7, 912iS, Garmin G3X

  4. #4
    Senior Member
    Join Date
    Nov 2017
    Location
    Bailey, CO
    Posts
    225

    Default Re: 914 oil lines and fittings.

    So, can the hose clamp be visible, or did he want the fire sleeve to cover the hose clamp?

  5. #5
    Senior Member jrevens's Avatar
    Join Date
    Aug 2009
    Location
    Arvada, CO
    Posts
    2,146

    Default Re: 914 oil lines and fittings.

    You won’t need clamps if you use the proper “Push-Loc” fittings & hose, Steve. Google it... you’ll get a ton of info & tips about how to use it.
    John Evens
    Arvada, CO
    Kitfox SS7 N27JE
    EAA Lifetime
    Chap. 43 honorary Lifetime

  6. #6
    Senior Member
    Join Date
    Nov 2017
    Location
    Bailey, CO
    Posts
    225

    Default Re: 914 oil lines and fittings.

    John, the oil cooler has the push loc fitting, but the oil tank has the stainless elbow, that I assume would need a hose clamp?

    If there is a hose clamp, is it expected to be covered by fire sleeve, or just butting against it?

  7. #7
    Senior Member aviator79's Avatar
    Join Date
    Dec 2016
    Location
    Los Alamos, NM
    Posts
    913

    Default Re: 914 oil lines and fittings.

    Quote Originally Posted by efwd View Post
    My EAA Tech Counselor, who happens to be my DAR also made me use fire sleeve.
    Just as a little background - The sleeve does protect your lines from hot components, but it's called firesleeve because it will buy some time before flame will penetrate it and melt your lines. You want that time to recognize that you have a fire, and get the engine shut down before you start pumping fuel and oil onto the fire. The Kitfox design does not do a very good job of protecting the cabin from an engine fire. The fiberglass cowls will burn right past the firewall, and melt your windshield in a hurry. the firewall itself will glow red hot, and if you used the plastic brake lines that came with your kit like I did, the hot firewall will melt the lines and ignite the hydraulic fluid, setting you on fire. That firesleeve can give you several minutes of standoff time before your fuel or oil systems make a bad situation much, much worse. While the statistics show that in-flight fires are pretty rare, I think the reasoning behind sleeving all the lines is sound.
    --Brian
    Flying - S7SS

  8. #8
    Senior Member
    Join Date
    Nov 2017
    Location
    Bailey, CO
    Posts
    225

    Default Re: 914 oil lines and fittings.

    Here are the fittings. The manual doesn’t say where they go, and there is only 3. Not sure what the 4th fitting should look like. The yellow cap is the banjo fitting on the bottom of the crankcase. I put one on the top of the oil tank, and am holding the other that I also put in the top of the oil tank.

    How much torque on the fittings when I figure out where they go? Josh, how did you route your lines?
    Last edited by Flyboy66; 05-17-2019 at 06:22 PM.

  9. #9
    Senior Member jiott's Avatar
    Join Date
    Jun 2010
    Location
    Portland, OR
    Posts
    2,960

    Default Re: 914 oil lines and fittings.

    You've got it-the 3 90 deg fittings: Two on top of oil tank, one on the oil pump. The banjo on the bottom takes a straight fitting.
    Jim Ott
    Portland, OR
    Kitfox SS7 flying
    Rotax 912ULS

  10. #10
    Senior Member
    Join Date
    Nov 2017
    Location
    Bailey, CO
    Posts
    225

    Default Re: 914 oil lines and fittings.

    Alright, that one solved. I will have to get KF to send me one so I can finish up. Next question: how much clearance between the exhaust pipes/muffler, cylinders, and the firesleeve that protects the oil lines?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •