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Subject: Re: [FlyRotary] Re: Leaking input shaft
References: <list-6765627@logan.com>
From: Tracy <rwstracy@gmail.com>
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Date: Sat, 8 Mar 2014 07:39:39 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Neil's advice was right on.   When installed, there should be virtually no s=
ide play but there is nothing to restrain it when removed from the engine ot=
her 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

Tracy

PS:  Congrats on getting 400 hours in your plane Christian, and to Bob on th=
at great article in Experimenter.  I always get a kick out of hearing that r=
otary powered planes are out there and flying.

Sent from my iPad

> 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 rep=
lace 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 shou=
ld 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 o=
nce removed from the motor.Motor has done approx 400 hrs.
>> Just reinstalled the motor after some work and noticed oil dribbling from=
 under the flywheel, thus why it was removed.
>>=20
>> Cheers
>> Christian
>> Sent from my iPad
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>>=20
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>=20
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