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Thread: Firewall Forward Ground / Engine Ground

  1. #1
    Junior Member
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    Sep 2016
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    San Diego, Cleveland Avenue
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    Default Firewall Forward Ground / Engine Ground

    Hi, the manual says for the fuselage side to remove only the powder coat on top left engine mount attachment point (just the small ring area on cockpit side). According to my understanding, the powder coat stays on in all other areas, incl. the front discs where the firewall touches the fuselage.
    However, after installing the firewall and moving on to the engine mount, I recognized in figure FF11 (bottom right), that I have to remove the powder coat of the engine mount at all 4 attachment points on both sides.
    Basically the firewall will be grounded from the 4 points of the engine mount but is insulated towards the fuselage since the poweder coat needs not to be removed there.
    Makes that sense? I am not sure if I am doing it right.
    7B51B336-25AD-4FC4-9197-34E50FBFCC78.png

  2. #2
    Junior Member Bill Tew's Avatar
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    Jun 2016
    Location
    Park City , Utah
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    7

    Default Re: Firewall Forward Ground / Engine Ground

    Quote Originally Posted by Tobi View Post
    Hi, the manual says for the fuselage side to remove only the powder coat on top left engine mount attachment point (just the small ring area on cockpit side). According to my understanding, the powder coat stays on in all other areas, incl. the front discs where the firewall touches the fuselage.
    However, after installing the firewall and moving on to the engine mount, I recognized in figure FF11 (bottom right), that I have to remove the powder coat of the engine mount at all 4 attachment points on both sides.
    Basically the firewall will be grounded from the 4 points of the engine mount but is insulated towards the fuselage since the poweder coat needs not to be removed there.
    Makes that sense? I am not sure if I am doing it right.
    7B51B336-25AD-4FC4-9197-34E50FBFCC78.png
    You will certainly have a good ground!!

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