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Subject: Re: [FlyRotary] Re: Leaking input shaft
References: <list-6765844@logan.com>
From: Christamarmc <christamarmc@gmail.com>
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Date: Sun, 9 Mar 2014 06:17:40 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Hi Tracy
Many thanks for the input, I have removed the seal and she was a bit hard fr=
om use, so a new one is being  installed and should fix it. Certainly love f=
lying behind the rotary.

Cheers
Christian

Sent from my iPad

On 08/03/2014, at 10:39 PM, Tracy <rwstracy@gmail.com> wrote:

> Neil's advice was right on.   When installed, there should be virtually no=
 side play but there is nothing to restrain it when removed from the engine o=
ther than the pilot bearing on the prop shaft and that alone would allow it t=
o wobble about quite a bit.  The clearance on that bearing is fairly large i=
n order to flow enough cooling oil for the gears.  =20
>=20
> Tracy
>=20
> PS:  Congrats on getting 400 hours in your plane Christian, and to Bob on t=
hat great article in Experimenter.  I always get a kick out of hearing that r=
otary powered planes are out there and flying.
>=20
> Sent from my iPad
>=20
>> On Mar 8, 2014, at 3:13, Christamarmc <christamarmc@gmail.com> wrote:
>>=20
>> Cheers Neil
>> Just wondering how much play there should be, but seal is worn so will re=
place and see how it goes.
>>=20
>> Cheers
>>=20
>> Sent from my iPad
>>=20
>>> On 08/03/2014, at 5:49 PM, "Neil Unger" <neil.unger@bigpond.com> wrote:
>>>=20
>>> Chris,
>>>        That shaft is held true in the flywheel and in the planetries the=
 other end.  Once removed I suspect that the shaft would be "moveable" as yo=
u describe.  Suggest a new seal and see what happens.  hours is reasonable f=
or a simple 1 inch seal.  Neil.
>>>=20
>>> -----Original Message----- From: Christamarmc
>>> Sent: Saturday, March 08, 2014 4:06 PM
>>> To: Rotary motors in aircraft
>>> Subject: [FlyRotary] Leaking input shaft
>>>=20
>>>=20
>>> Hi all
>>> Just wondering whether anyone can tell me what the play side to side sho=
uld be in the rd1c gearbox input shaft and what to expect from the oil seal,=
 i can move the input shaft a little and see a visible gap on the input seal=
 once removed from the motor.Motor has done approx 400 hrs.
>>> Just reinstalled the motor after some work and noticed oil dribbling fro=
m under the flywheel, thus why it was removed.
>>>=20
>>> Cheers
>>> Christian
>>> Sent from my iPad
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>>=20
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t.html
>=20
> --
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