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Thread: 912UL oil hatch on a SMOOTH COWL Model IV-1200

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  1. #1
    Senior Member GWright6970's Avatar
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    Default 912UL oil hatch on a SMOOTH COWL Model IV-1200

    I am getting close to being finished with my 912UL in a IV-1200. My question.... Has anyone with a SMOOTH COWL installed an oil check access hatch with the oil tank installed as described in the 912 install manual (cradled in the firewall)?

    Did you offset the hatch or place it on the center line? What size opening did you make? Can you post a couple photos?

    Thank you in advance. I prefer not to re-invent things!
    Grover Wright
    Flying a KF IV-1200
    ROTAX 912UL

  2. #2
    Senior Member cubtractor's Avatar
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    Default Re: 912UL oil hatch on a SMOOTH COWL Model IV-1200

    I have the smooth cowl on a IV-1200 but with a Jabiru. I can post some pictures of my oil door and how I did it if you want.
    Mike Bentley
    Model IV-1200
    Jabiru 2200A #438
    Rotec Aerosport LCH Heads
    Ellison EFS-2 Throttle Body
    Prince Prop (64x34)
    My SPOT Page

  3. #3
    Senior Member GWright6970's Avatar
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    Default Re: 912UL oil hatch on a SMOOTH COWL Model IV-1200

    Mike.... Please!!

    The smooth cowl shows an impression offset to the aircraft's port side. It is also much smaller than the factory oil door kit' s directions. After staring at it all I am pondering if one can get their hand in there, remove the cap, and then pull the dip stick out to the side..

    All photos of smooth cowls will help! This may help future builders!

    Thank you!!
    Grover Wright
    Flying a KF IV-1200
    ROTAX 912UL

  4. #4
    Senior Member cubtractor's Avatar
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    Default Re: 912UL oil hatch on a SMOOTH COWL Model IV-1200

    I can probably find the hinge and latch part numbers if you need them.





    Mike Bentley
    Model IV-1200
    Jabiru 2200A #438
    Rotec Aerosport LCH Heads
    Ellison EFS-2 Throttle Body
    Prince Prop (64x34)
    My SPOT Page

  5. #5
    Senior Member GWright6970's Avatar
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    Default Re: 912UL oil hatch on a SMOOTH COWL Model IV-1200

    Mike.... THANK YOU!! EXCELLENT workmanship!

    My problem is trying to make that happen up against the firewall, in the center of the cowling or very near it. It gets a bit more challenging with that decorative raised section smack in the middle!

    Mike... thank you ever so much for the photos!
    Grover Wright
    Flying a KF IV-1200
    ROTAX 912UL

  6. #6
    Senior Member cubtractor's Avatar
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    Default Re: 912UL oil hatch on a SMOOTH COWL Model IV-1200

    I know. My dipstick is centered in the middle of the door because I didn't want to deal with the hump.
    Mike Bentley
    Model IV-1200
    Jabiru 2200A #438
    Rotec Aerosport LCH Heads
    Ellison EFS-2 Throttle Body
    Prince Prop (64x34)
    My SPOT Page

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