Mailing List flyrotary@lancaironline.net Message #60804
From: Christamarmc <christamarmc@gmail.com>
Subject: Re: [FlyRotary] Re: Leaking input shaft
Date: Sun, 9 Mar 2014 11:01:08 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Yes I agree, I have just totally revamped the cooling system totally so hopefully expecting allot better results have mounted the rads flat under the motor with ducts and vented via Venetian style vents strait out, hopefully allot better.

Time will tell

Cheers

Sent from my iPad

On 09/03/2014, at 8:58 AM, Tracy <rwstracy@gmail.com> wrote:

> Just FYI,  I have found that life of the input shaft seal is closely related to oil temperature.   The hotter the oil temp, the sooner the seal gets hard and looses its elasticity and ability to seal.
>
> Tracy
>
> Sent from my iPad
>
>> On Mar 8, 2014, at 15:17, Christamarmc <christamarmc@gmail.com> wrote:
>>
>> Hi Tracy
>> Many thanks for the input, I have removed the seal and she was a bit hard from use, so a new one is being  installed and should fix it. Certainly love flying 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 other than the pilot bearing on the prop shaft and that alone would allow it to wobble about quite a bit.  The clearance on that bearing is fairly large in order to flow enough cooling oil for the gears.  
>>>
>>> Tracy
>>>
>>> PS:  Congrats on getting 400 hours in your plane Christian, and to Bob on that great article in Experimenter.  I always get a kick out of hearing that rotary powered planes are out there and flying.
>>>
>>> Sent from my iPad
>>>
>>>> On Mar 8, 2014, at 3:13, Christamarmc <christamarmc@gmail.com> wrote:
>>>>
>>>> Cheers Neil
>>>> Just wondering how much play there should be, but seal is worn so will replace and see how it goes.
>>>>
>>>> Cheers
>>>>
>>>> Sent from my iPad
>>>>
>>>>> On 08/03/2014, at 5:49 PM, "Neil Unger" <neil.unger@bigpond.com> wrote:
>>>>>
>>>>> 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 you describe.  Suggest a new seal and see what happens.  hours is reasonable for a simple 1 inch seal.  Neil.
>>>>>
>>>>> -----Original Message----- From: Christamarmc
>>>>> Sent: Saturday, March 08, 2014 4:06 PM
>>>>> To: Rotary motors in aircraft
>>>>> Subject: [FlyRotary] Leaking input shaft
>>>>>
>>>>>
>>>>> Hi all
>>>>> Just wondering whether anyone can tell me what the play side to side should 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 from under the flywheel, thus why it was removed.
>>>>>
>>>>> Cheers
>>>>> Christian
>>>>> Sent from my iPad
>>>>> --
>>>>> Homepage:  http://www.flyrotary.com/
>>>>> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html
>>>>>
>>>>> --
>>>>> Homepage:  http://www.flyrotary.com/
>>>>> Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html
>>>>
>>>> --
>>>> Homepage:  http://www.flyrotary.com/
>>>> Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html
>>>
>>> --
>>> Homepage:  http://www.flyrotary.com/
>>> Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html
>>
>> --
>> Homepage:  http://www.flyrotary.com/
>> Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster