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Thread: Engine Mount Hardware

  1. #1

    Engine Mount Hardware

    The engine mount is fastened to the firewall with 5 large bolts. There
    are four smaller holes to the side of the mount legs. I could not
    locate any type of hardware in the parts manual. Are they empty holes
    or do bolts get installed there? What type of bolts/nuts are used? When
    I purchased the plane, the mount was already removed so I have no clue.
    The DAR is getting ready to inspect my plane for my airworthiness
    certificate and asked about the empty holes. Thanks.

    Mike Hippensteel
    M-1449
    N2114W





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  2. #2

    Engine Mount Hardware

    What model of Musketeer do you have? Which engine do you have? There are four different engines and the mounts are different. You can probably get someone to take a picture for you that has the same model if we know.

    mhippenste <c23n2114w@aol.com> wrote: The engine mount is fastened to the firewall with 5 large bolts. There
    are four smaller holes to the side of the mount legs. I could not
    locate any type of hardware in the parts manual. Are they empty holes
    or do bolts get installed there? What type of bolts/nuts are used? When
    I purchased the plane, the mount was already removed so I have no clue.
    The DAR is getting ready to inspect my plane for my airworthiness
    certificate and asked about the empty holes. Thanks.

    Mike Hippensteel
    M-1449
    N2114W






    Join BAC today and be a part of the ONLY Type Club for the Musketeer series!

    www.beechaeroclub.org


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  3. #3

    Engine Mount Hardware

    >The engine mount is fastened to the firewall with 5 large bolts. There
    >are four smaller holes to the side of the mount legs. I could not
    >locate any type of hardware in the parts manual. Are they empty holes
    >or do bolts get installed there? What type of bolts/nuts are used? When
    >I purchased the plane, the mount was already removed so I have no clue.
    >The DAR is getting ready to inspect my plane for my airworthiness
    >certificate and asked about the empty holes. Thanks.

    They are AN3 bolts if memory serves. You can tell by checking the hole
    ID. 0.190" are AN3. Its an oddity in the way Beech built the
    planes. They assembled the engine mount and engine to the firewall and
    then bolted it to the first fuselage former with the large bolts. The
    small ones were to hold the firewall to the mount until the big ones were
    installed. Unlike most planes, the firewall can be removed pretty
    easily. After taking the engine controls and the wiring loose, you just
    remove the big mount bolts and use a putty knife to separate the sealant
    between the firewall and the fuselage, and it comes right off!

    So you need to put back AN3 bolts and your choice of nut at each mount
    point. They fill the holes so you don't have fumes coming through, but
    that is about it when the plane is assembled.

    Bob Steward, A&P IA
    Birmingham, AL



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  4. #4

    Engine Mount Hardware

    No fasteners are used in the smaller holes. These are likley "tooling"
    holes" used to maintain alignment during welding.

    To answer the question. M1449 should have a O-360 and use mount 169-
    910046. The parts manual I have lists 4 AN6-26A/M/ and 1 AN6-24A/M/
    botls as the attaching hardware.


    --- In musketeermail@yahoogroups.com, "mhippenste" <c23n2114w@a...>
    wrote:
    >
    > The engine mount is fastened to the firewall with 5 large bolts.
    There
    > are four smaller holes to the side of the mount legs. I could not
    > locate any type of hardware in the parts manual. Are they empty holes
    > or do bolts get installed there? What type of bolts/nuts are used?
    When
    > I purchased the plane, the mount was already removed so I have no
    clue.
    > The DAR is getting ready to inspect my plane for my airworthiness
    > certificate and asked about the empty holes. Thanks.
    >
    > Mike Hippensteel
    > M-1449
    > N2114W
    >






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